  | Répási, A., Szelényi, Z., Melo de Sousa, N., Beckers, J.-F., Nagy, K., & Szenci, O. (2019). Effect of ovulation rate and timing of ovulation after different hormone treatments on pregnancy rate in dairy cows. Polish Journal of Veterinary Sciences, 22 (2), 355-362. doi:10.24425/pjvs.2019.129228  Peer Reviewed verified by ORBi |
 | Cantón, G. J., Schock, A., Melo de Sousa, N., Beckers, J.-F., & Chianini, F. (2019). Characterization of CD79αcy + cells in placentas from ruminants. Veterinary Immunology and Immunopathology, 217. doi:10.1016/j.vetimm.2019.109942 Peer Reviewed verified by ORBi |
 | Barbato, O., Menchetti, L., Melo de Sousa, N., Brecchia, G., Malfatti, A., Canali, C., Beckers, J.-F., & Barile, V. L. (2018). Correlation of two radioimmunoassay systems for measuring plasma pregnancy-associated glycoproteins concentrations during early pregnancy and postpartum periods in water buffalo. Reproduction in Domestic Animals, 53 (6), 1483-1490. doi:10.1111/rda.13294 Peer Reviewed verified by ORBi |
 | Barbato, O., Guelfi, G., Barile, V. L., Menchetti, L., Tortiello, C., Canali, C., Brecchia, G., Traina, G., Beckers, J.-F., & Melo de Sousa, N. (2017). Using real-time PCR to identify pregnancy-associated glycoprotein 2 (PAG-2) in water buffalo (Bubalus bubalis) blood in early pregnancy. Theriogenology, 89, 106-113. doi:10.1016/j.theriogenology.2016.09.038 Peer Reviewed verified by ORBi |
 | Barbato, O., Chiaradia, E., Barile, V. L., Pierri, F., Melo de Sousa, N., Terracina, L., Canali, C., & Avellini, L. (2017). Corrigendum to “Investigation into omocysteine, vitamin E and malondialdehyde as indicators of successful artificial insemination in synchronized buffalo cows (Bubalus bubalis)” [Res. Vet. Sci. Volume 104, February 2016, Pages 100–105](S0034528815301004)(10.1016/j.rvsc.2015.11.012). Research in Veterinary Science, 114, 526. doi:10.1016/j.rvsc.2016.07.009 |
 | Mur-Novales, R., Serrano-Perez, B., Garcia-Ispierto, I., Melo de Sousa, N., Beckers, J.-F., Almeria, S., & Lopez-Gatius, F. (2016). Experimental Neospora caninum infection modifies trophoblast cell populations and plasma pregnancy-associated glycoprotein 1 and 2 dynamics in pregnant dairy heifers. Veterinary Parasitology, 216, 7-12. doi:10.1016/j.vetpar.2015.12.001 Peer Reviewed verified by ORBi |
 | Petrajtis-Gołobów, M., Beckers, J.-F., Domino, M., Pawlinski, B., Faundez, R., Melo de Sousa, N., & Gajewski, Z. (2016). Urine pregnancy-associated glycoproteins (PAG) in embryonic loss diagnosis in dairy cattle. In Reproduction in Domestic Animals. Wiley Online Library. Editorial reviewed |
 | Petrajtis-Gołobów, M., Domino, M., Pawliński B., Faundez R., Melo de Sousa, N., Beckers, J.-F., & Gajewski Z. (2016). Diagnostic value of pregnancy-associated glycoproteins (PAG) measurement in blood and urine in late embryonic mortality diagnosis in dairy cattle. Reproduction in Domestic Animals, 51 (Suppl 2), 131. Editorial reviewed |
 | Karen, A., Melo de Sousa, N., Beckers, J.-F., Bajcsy, A. C., Tibold, J., Madl, I., & Szenci, O. (2015). Comparison of a commercial bovine pregnancy-associated glycoprotein ELISA test and a pregnancy-associated glycoprotein radiomimmunoassay test for early pregnancy diagnosis in dairy cattle. Animal Reproduction Science, 159, 31-37. doi:10.1016/j.anireprosci.2015.05.005 Peer Reviewed verified by ORBi |
 | Szelenyi, Z., Répási, A., Melo de Sousa, N., Beckers, J.-F., & Szenci, O. (2015). Accuracy of diagnosing double corpora lutea and twin pregnancy by measuring serum progesterone and bovine pregnancy-associated glycoprotein 1 in the first trimester of gestation in dairy cows. Theriogenology, 84 (1), 76-81. doi:10.1016/j.theriogenology.2015.02.014 Peer Reviewed verified by ORBi |
 | Petrajtis-Gołobów, M., Gajewski, Z., Pawliński, B., Wehrend, A., Melo de Sousa, N., & Beckers, J.-F. (2015). Pregnancy-associated glycoprotein concentration in cow’s urine as a new method for pregnancy diagnosis. Reproduction in Domestic Animals, 50 (1), 42-43. Peer Reviewed verified by ORBi |
 | Melo de Sousa, N., Tchimbou Njanjo, A. F., & Beckers, J.-F. (2015). Development of a new immunoradiometric assay for Pregnancy-Associated Glycoproteins (IRMA-PAG) allowing pregnancy follow-up in cattle by using milk samples. Biotechnologie, Agronomie, Société et Environnement, 19 (2), 120. Editorial reviewed |
 | Engelke, J., Knaack, H., Linden, M., Feldmann, M., Gundling, N., Gundelach, Y., Egli, C., Greiner, M., Beckers, J.-F., Melo de Sousa, N., Meyerholz, M. M., Hoedemaker, M., & Piechotta, M. (2015). Identification of embryonic/fetal mortality in cows by semiquantitative detection of pregnancy-associated glycoproteins. Livestock Science, 178, 363-370. doi:10.1016/j.livsci.2015.05.030 Peer Reviewed verified by ORBi |
 | El Amiri, B., Melo de Sousa, N., Alvarez-Oxiley, A., Hadarbach, D., & Beckers, J.-F. (2015). Pregnancy-associated glycoprotein (PAG) concentration in plasma and milk samples for early pregnancy diagnosis in Lacaune dairy sheep. Research in Veterinary Science, 99, 30-36. doi:10.1016/j.rvsc.2014.12.016 Peer Reviewed verified by ORBi |
 | Melo de Sousa, N., Tchimbou Njanjo, A. F., & Beckers, J.-F. (2015). Validation of a new immunoradiometric assay (IRMA) allowing quantification of Pregnancy-Associated Glycoproteins concentrations in bovine milk. Biotechnologie, Agronomie, Société et Environnement, 19 (2), 120. Editorial reviewed |
 | Garcia-Ispierto, I., Serrano-Perez, B., Almeria, S., Martinez-Bello, D., Tchimbou, A. F., Melo de Sousa, N., Beckers, J.-F., & Lopez-Gatius, F. (2015). Effects of crossbreeding on endocrine patterns determined in pregnant beef/dairy cows naturally infected with Neospora caninum. Theriogenology, 83 (4), 491-496. doi:10.1016/j.theriogenology.2014.10.013 Peer Reviewed verified by ORBi |
 | Piccart, K., Piepers, S., Verbeke, J., Melo de Sousa, N., Beckers, J.-F., & De Vliegher, S. (2015). Milk prolactin response and quarter milk yield after experimental infection with coagulase-negative staphylococci in dairy heifers. Journal of Dairy Science, 98 (7), 4593-4600. doi:10.3168/jds.2015-9349 Peer Reviewed verified by ORBi |
 | El Amiri, B., El Abbadi, N., Melo de Sousa, N., & Beckers, J.-F. (2015). Detection of Pregnancy.Associated Glycoproteins (PAGs) in prolific and non prolific ewes from early to late gestation and postpartum. In AETE Board, Proceedings of AETE. AETE board. Editorial reviewed |
 | Piccart, K., Piepers, S., Verbeke, J., Melo de Sousa, N., Beckers, J.-F., & De Vliegher, S. (2014). Milk prolactin response after induced intramammary infection with coagulase-negative staphylococci in dairy heifers [Paper presentation]. Regional Meeting of National Mastitis Council, Ghent, Belgium. |
 | El Amiri, B., Moussafir, Z., Allai, I., Druart, X., Szenci, O., Melo de Sousa, N., & Beckers, J.-F. (2014). Sheep seminal plasma contains some pregnancy associated glycoprotein forms. In Proceedings of the European Regional Conference on Goats. European Regional Conference on Goats. Editorial reviewed |
 | El Amiri, B., Delahaut, P., Colemans, Y., Melo de Sousa, N., & Beckers, J.-F. (2014). Investigation of pregnancy-associated glycoproteins (PAGs) by means of an enzymoimunoassay (ELISA) sandwich kit for pregnancy monitoring in sheep. In M. Chentouf, A. López-Francos, M. Bengoumi, ... D. Gabiña (Eds.), Options méditerranéennes : Series A (pp. 299-303). Peer reviewed |
  | Bériot, M., Tchimbou Njanjo, A. F., Barbato, O., Beckers, J.-F., & Melo de Sousa, N. (2014). Identification of pregnancy-associated glycoproteins and alpha-fetoprotein in fallow deer (Dama dama) placenta. Acta Veterinaria Scandinavica, 56 (4), 1-11. doi:10.1186/1751-0147-56-4 Peer Reviewed verified by ORBi |
 | Karen, A., Bajcsy, A., Minoia, R., Kovacs, R., Melo de Sousa, N., Beckers, J.-F., Tibold, J., Madl, I., & Szenci, O. (2014). Relationship of progesterone, bovine pregnancy-associated glycoprotein-1 and nitric oxide with late embryonic and early fetal mortalities in dairy cows. Journal of Reproduction and Developmen, 60 (2), 162-167. doi:10.1262/jrd.2013-033 Peer reviewed |
 | Serrano-Perez, B., Garcia-Ispierto, I., Melo de Sousa, N., Beckers, J.-F., Almeria, S., & Lopez-Gatius, F. (2014). Gamma interferon production and plasma concentrations of pregnancy-associated glycoproteins 1 and 2 in gestating dairy cows naturally infected with Neospora caninum. Reproduction in Domestic Animals, 49 (2), 275-280. doi:10.1111/rda.12267 Peer Reviewed verified by ORBi |
 | Gajewski, Z., Petrajtis-Golobów, M., Wehrend, A., Melo de Sousa, N., & Beckers, J.-F. (2014). Comparison of accuracy of pregnancy-associated glycoprotein's (PAG's) concentration in blood and milk as methods for early pregnancy diagnosis in cows. Reproduction in Domestic Animals, 18. Editorial reviewed |
 | Okuyama, M., Melo de Sousa, N., & Beckers, J.-F. (19 June 2013). Characteristics of Pregnancy-Associated glycoprotein (PAG) like proteins in red deer [Poster presentation]. Biomedica 2013, European Life Sciences Summit, Eurogress achen, Aachen, Germany. |
 | Nguyen, V. H., Linh, N. V., Melo de Sousa, N., Beckers, J.-F., & Bui, X. N. (2013). Profiles of Pregnancy-Associated Glycoprotein (Pag) concentrations during gestation in Swamp Buffalo. Buffalo Bulletin, 32 (Suppl. 2), 448-451. Peer reviewed |
 | Barbato, O., Merlo, M., Celi, P., Melo de Sousa, N., Guarneri, L., Beckers, J.-F., & Gabai, G. (2013). Relationship between plasma progesterone and pregnancy-associated glycoprotein concentrations during early pregnancy in dairy cows. Veterinary Journal, 195 (3), 385-387. doi:10.1016/j.tvjl.2012.06.028 Peer Reviewed verified by ORBi |
 | Garcia-ispierto, I., Almeria, S., Serrano, B., Melo de Sousa, N., Beckers, J.-F., & Lopez-Gatius, F. (2013). Plasma concentrations of pregnancy-associated glycoproteins measured using anti-bovine PAG-2 antibodies on Day 120 of gestation predict abortion in dairy cows naturally infected with Neospora caninum. Reproduction in Domestic Animals, 48, 613-618. doi:10.1111/rda.12134 Peer Reviewed verified by ORBi |
 | Bériot, M., Tchimbou Njanjo, A. F., Barbato, O., Beckers, J.-F., & Melo de Sousa, N. (2013). Serum albumin [Fragment] from Dama dama placenta - Accession number C0HJD2. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/157462. |
 | Mala, J., Beckers, J.-F., Melo de Sousa, N., Indrova, E., Lopatarova, M., Dolezel, R., & Cech, S. (2013). Intrafollicular LH administration in dairy heifers treated with a GnRH agonist. Veterinarni Medicina, 58 (2), 81–86. doi:10.17221/6700-VETMED Peer Reviewed verified by ORBi |
 | Van Hahn, N., Viet Linh, N., Melo de Sousa, N., Beckers, J.-F., & Bui, X. (2013). Profiles of pregnancy-associated glycoprotein (PAG) concentrations during gestation in swamp buffalo. In Proceedings of the 10th World Buffalo Congress and 7th Asian Buffalo Congress. |
 | Van Hanh, N., Melo de Sousa, N., Beckers, J.-F., & Bui, X. (2013). The prenatal development in swamp buffalo. Iranian Journal of Veterinary Research, 14 (4), 313-319. |
 | Bériot, M., Tchimbou Njanjo, A. F., Barbato, O., Beckers, J.-F., & Melo de Sousa, N. (2013). Pregnancy-Associated Glycoprotein B-56 kDa [Fragment] from Dama dama placenta - Accession number C0HJC8. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/157457. |
 | Bériot, M., Tchimbou Njanjo, A. F., Barbato, O., Beckers, J.-F., & Melo de Sousa, N. (2013). Pregnancy-Associated Glycoprotein A-62 kDa [Fragment] from Dama dama placenta - Accession number C0HJC7. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/157456. |
 | Bériot, M., Tchimbou Njanjo, A. F., Barbato, O., Beckers, J.-F., & Melo de Sousa, N. (2013). Alpha-2-HS-glycoprotein [Fragment] from Dama dama placenta - Accession number C0HJD1. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/157461. |
 | Bohak, Z., Szabo, F., Beckers, J.-F., Melo de Sousa, N., Kutasi, O., Nagy, K., & Szenci, O. (2013). Monitoring the circadian rhythm of serum and salivary cortisol concentrations in the horse. Domestic Animal Endocrinology, 45 (1), 38-42. doi:10.1016/j.domaniend.2013.04.001 Peer Reviewed verified by ORBi |
 | Barbato, O., Melo de Sousa, N., Barile, V. L., Canali, C., & Beckers, J.-F. (2013). Purification of pregnancy-associated glycoproteins from late-pregnancy Bubalus bubalis placentas and development of a radioimmunoassay for pregnancy diagnosis in water buffalo females. BMC Veterinary Research, 9, 89. doi:10.1186/1746-6148-9-89 Peer Reviewed verified by ORBi |
 | El Amiri, B., Melo de Sousa, N., Szenci, O., & Beckers, J.-F. (2013). Pregnancy-associated glycoproteins in sheep: breeds, techniques and achievements. In Proceedings of the 23rd International Congress of Hungarian Association for Buiatrics (pp. 97-104). Budapest, Hungary: Hungarian Association for Buiatrics. |
 | El Amiri, B., Melo de Sousa, N., El Abbadi, N., El Fadili, M., Szenci, O., & Beckers, J.-F. (2013). Pregnancy-Associated Glycoproteins (PAGs) in prolific (Boujaâd x D’man) and non- prolific (Boujaâd) Moroccan sheep by means of four radio-immunoassays. In Proceedings of the 23rd International Congress of Hungarian Association for Buiatrics (Hungarian Association for Buiatrics, pp. 177-181). Budapest, Hungary: Hungarian Association for Buiatrics. |
 | Bériot, M., Tchimbou Njanjo, A. F., Barbato, O., Beckers, J.-F., & Melo de Sousa, N. (2013). Pregnancy-Associated Glycoprotein C-39 kDa [Fragment] from Dama dama placenta - Accession number C0HJC9. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/157458. |
 | Bériot, M., Tchimbou Njanjo, A. F., Barbato, O., Beckers, J.-F., & Melo de Sousa, N. (2013). Pregnancy-Associated Glycoprotein D-56 kDa [Fragment] from Dama dama placenta - Accession number C0HJD0. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/157459. |
 | Beriot, M., Tchimbou Njanjo, A. F., Barbato, O., Barbato, O., Beckers, J.-F., & Melo de Sousa, N. (2013). Identification of pregnancy-associated glycoproteins and alphafetoprotein in fallow deer (Dama dama) placenta [Paper presentation]. 3rd Scientific Meeting of the Faculty of Veterinary Medicine (Liege, Belgium), Liege, Belgium. |
 | Melo de Sousa, N., Tchimbou Njanjo, A. F., & Beckers, J.-F. (2013). Assay of Pregnancy-Associated Glycoproteins in milk: Integration of the assay in periodic milk control to follow pregnancy in dairy cows [Paper presentation]. Pregnancy, Parturition, Postpartum Meeting (PPP), Liège, Belgium. |
 | Mala, J., Beckers, J.-F., Melo de Sousa, N., Indrova, E., Lopatarova, M., Dolezel, R., Sevelova, H., & Cech, S. (2013). Determination of minimum effective doses of luteinizing hormone and human chorionic gonadotropin for intrafollicular treatment to induce ovulation in dairy heifers. Acta Veterinaria Brno, 82, 375-379. doi:10.2754/avb201382040375 Peer reviewed |
Bella, A., Beckers, J.-F., & Melo de Sousa, N. (2012). Placental and gastric aspartic proteinases: new insights from bovine species. In Proceedings of the 2nd Scientific Meeting of the Faculty of Veterinary Medicine. |
 | Nguyen, V. H., Barbato, O., Bui, X. N., Beckers, J.-F., & Melo de Sousa, N. (October 2012). Assessment of pregnancy-associated glycoprotein (PAG) concentrations in swamp buffalo samples from fetal and maternal origins by using interspecies antisera. Animal Science Journal, 83 (10), 683-689. doi:10.1111/j.1740-0929.2012.01009.x Peer Reviewed verified by ORBi |
 | Abdelfatah-Hassan, A., Almeria, S., Serrano, B., Melo de Sousa, N., Beckers, J.-F., & Lopez-Gatius, F. (15 April 2012). The inseminating bull and plasma pregnancy-associated glycoprotein levels were related to peripheral leukocyte counts during the late pregnancy/early postpartum period in high-producing dairy cows. Theriogenology, 77 (7), 1390-1397. doi:10.1016/j.theriogenology.2011.11.002 Peer Reviewed verified by ORBi |
 | Petrova, A., Okuyama, M., Fondja, E., Beckers, J.-F., & Melo de Sousa, N. (February 2012). Fractionnement et immunoréactivité de type PAG (Pregnancy-Associated Glycoprotein) des protéines extraites des caroncules maternelles chez les cervidés (Cervus elaphus) [Poster presentation]. Jounées Portes Ouvertes Haute Ecole de la Province de Liège, Liège, Belgium. |
 | Fondja, E., Okuyama, M., Petrova, A., Beckers, J.-F., & Melo de Sousa, N. (February 2012). Investigations sur les protéines placentaires extraites des cotylédons fœtaux du Cervus elaphus [Poster presentation]. Jounées Portes Ouvertes de la Haute Ecole de le Province de Liège, Liège, Belgium. |
 | Bella, A., Melo de Sousa, N., Dehimi, M. L., & Beckers, J.-F. (2012). Pregnancy-associated glycoprotein, chymosin and pepsinogen immunoreactivity of proteins extracted from fetal gastric tissue in bovine species. Research in Veterinary Science, 92 (3), 378-386. doi:10.1016/j.rvsc.2011.03.023 Peer Reviewed verified by ORBi |
 | Lamrani, F., Benyounes, A., Sulon, J., Melo de Sousa, N., Hornick, J.-L., Beckers, J.-F., & Tahar, A. (2012). Étude de la cyclicité en relation avec le poids vif et l’état corporel chez les agnelles Ouled Djellal nées en automne dans la région Est de l’Algérie. Annales de Médecine Vétérinaire, 156, 81-86. Peer Reviewed verified by ORBi |
 | Szenci, O., Karen, A., Bajcsy, A. C., Gaspardy, A., Melo de Sousa, N., & Beckers, J.-F. (November 2011). Effect of restraint stess on plasma concentrations of cortisol, progesterone and pregnancy associated-glycoproteins-1 in pregnant heifers during late embryonic development. Theriogenology, 76 (8), 1380-1385. doi:10.1016/j.theriogenology.2011.05.030 Peer Reviewed verified by ORBi |
 | Beckers, J.-F., Bella, A., & Melo de Sousa, N. (24 September 2011). Placental and gastric arpartic proteinases: new insights from bovine species [Paper presentation]. Pregnancy, Parturition, Postpartum Meeting (PPP), Mariensee, Germany. |
 | Beckers, J.-F., & Melo de Sousa, N. (07 September 2011). Pregnancy-associated glycoprotein levels in cattle exhibiting prolonged pregnancy: case reports [Poster presentation]. 6th European Congress of Bovine Health and Management (ECBHM), Belgium. |
Melo de Sousa, N., Michiels, J.-A., Terroni, D., Bella, A., Czaplicki, G., & Beckers, J.-F. (07 September 2011). Concentrations of pepsinogens A and C in peripheral blood of cattle at different developmental stages [Paper presentation]. 6th European Congress of Bovine Health and Management (ECBHM). |
 | Szenci, O., Bajcsy, A. C., Nagy, K., Madl, I., Tibolt, J., Melo de Sousa, N., Beckers, J.-F., Kulcsar, M., & Huszenicza, G. (2011). Prediction of stillbirth in Holstein-Friesian dairy cows by monotoring endocrine profiles in the periparturient period. In Proceedings of the 6th European Congress of Bovine Health and Management (ECBHM) (pp. 75). |
 | Beckers, J.-F., Melo de Sousa, N., Colemonts, Y., Huet, A. C., Bertrand, H., Bella, A., Barbato, O., & Delahaut, P. (07 September 2011). Pregnancy diagnosis in cattle by using a new ELISA for pregnancy-associated glycoprotein: preliminary results [Poster presentation]. 6th European Congress of Bovine Health and Management (ECBHM). |
Bella, A., Melo de Sousa, N., Lopez-Gatius, F., Garcia-Ispierto, I., Schoofs, L., Chahiba, N., & Beckers, J.-F. (07 September 2011). Development of a new radioimmunoassay by using antiserum against pregnancy-associated glycoprotein II : concentrations in holstein dairy cattle [Paper presentation]. 6th European Congress of Bovine Health and Management (ECBHM). |
 | Delahaut, P., Melo de Sousa, N., Huet, A. C., Colemonts, Y., Bertrand, H., Barbato, O., & Beckers, J.-F. (07 September 2011). Development of a new ELISA for measurement of pregnancy-associated glycoprotein [Poster presentation]. 6th European Congress of Bovine Health and Management (ECBHM). |
 | Andreu-Vazquez, C., Garcia-Ispierto, I., Lopez-Bejar, M., Melo de Sousa, N., Beckers, J.-F., & Lopez-Gatius, F. (August 2011). Clinical implications of induced twin reduction in dairy cattle. Theriogenology, 76 (3), 512-521. doi:10.1016/j.theriogenology.2011.03.003 Peer Reviewed verified by ORBi |
 | Constant, F., Camous, S., Chavatte-Palmer, P., Heyman, Y., Melo de Sousa, N., Richard, C., Beckers, J.-F., & Guillomot, M. (2011). Altered secretion of pregnancy-associated glycoproteins during gestation in bovine somatic clones. Theriogenology, 76 (6), 1006-1021. doi:10.1016/j.theriogenology.2011.04.029 Peer Reviewed verified by ORBi |
 | Barbato, O., Melo de Sousa, N., Canali, C., & Beckers, J.-F. (2011). The pregnancy-associated glycoproteins. Clinical applications for pregnancy follow-up in ruminant species. Revista Română de Medicină Veterinară, 21 (2), 117-126. Peer reviewed |
 | Szelenyi, Z., Bajcsy, A. C., Nagy, K., Repasi, A., Madl, I., Tibold, J., Kulcsar, M., Huszenicza, G., Melo de Sousa, N., Beckers, J.-F., & Szenci, O. (2011). Prediction of twin pregnancies by measuring certain endocrine parameters in dairy cows in the peripartal period. In Proceedings 12th Middle European Buiatrics Congress. Hungarian Association for Buiatrics. Editorial reviewed |
 | Szenci, O., Bajcsy, A. C., Nagy, K., Bryd, E., Madl, I., Tibold, J., Melo de Sousa, N., Beckers, J.-F., Kulcsár, M., & Huszenicza, G. (2011). Monitoring endocrine profiles for prediction of stillbirth in Holstein-Friesian dairy heifers. In Proceedings 12th Middle European Buiatrics Congress. Hungary: Hungarian Association for Buiatrics. Editorial reviewed |
 | Karen, A., Beckers, J.-F., Melo de Sousa, N., & Szenci, O. (2011). Plasma urea nitrogen in relation to pregnancy rate in dairy sheep. Animal Reproduction Science, 124 (1-2), 69-72. doi:10.1016/j.anireprosci.2011.01.012 Peer Reviewed verified by ORBi |
 | Karen, A. M., Darwish, S., Ramoun, A., Tawfeek, K., Van Hanh, N., Melo de Sousa, N., Sulon, J., Szenci, O., & Beckers, J.-F. (2011). Accuracy of transrectal palpation for early pregnancy diagnosis in Egyptian buffaloes. Tropical Animal Health and Production, 43 (1), 5-7. doi:10.1007/s11250-010-9675-2 Peer Reviewed verified by ORBi |
 | Karen, A., Bajcsy, A. C., Kovacs, R., Beckers, J.-F., Chahiba, N., Schoofs, L., Melo de Sousa, N., Tibold, J., Takacs, L., Madl, I., & Szenci, O. (2010). Late embryonic and early fetal mortalities in dairy cows: the incidence and pregnancy protein profiles. In Proceedings of the 20th International Congress of Hungarian Association for Buiatrics (pp. 54-55). |
 | Repasi, A., Melo de Sousa, N., Beckers, J.-F., & Szenci, O. (2010). Effect of a corpus luteum with or without a cavity on fertility in dairy cows after prostaglandin treatment. In Proceedings of the Hungarian Association for Buiatrics. |
 | El Amiri, B., El Abbadi, N., Benjelloun, B., Melo de Sousa, N., & Beckers, J.-F. (15 September 2010). Could Western blot analysis be an alternative to radio-immunoassay for sheep pregnancy associated glycoproteins measurements ? Reproduction in Domestic Animals, 45 (Suppl 3), 65. Peer Reviewed verified by ORBi |
 | Szenci, O., Bajcsy, A. C., Brydl, E., Madl, I., Tibold, J., Melo de Sousa, N., Bella, A., Beckers, J.-F., Keresztes, M., Faigl, V., Kulcsar, M., & Huszenicza, G. (03 September 2010). Monitoring endocrine profiles for prediction of stillbirth in Holstein-Friesian dairy cattle [Paper presentation]. 8th International Ruminant Reproduction Congress, Anchorage(Alaska), United States. |
 | Alabart, J. L., Lahoz, B., Folch, J., Marti, J. I., Sanchez, P., Delahaut, P., Colemonts, Y., Beckers, J.-F., & Melo de Sousa, N. (2010). Diagnostico precoz de gestation en Ganado ovino mediante un kit enzimoimmunoanalisis (EIA) de la glicoproteina asociada a la gestation (PAG) plasmatica. In Proceedings of the XXXV Congreso de la Sociedad Espanola de Ovinotechnia y Caprinotecnia (SEOC) (pp. 199-202). Peer reviewed |
 | Garcia-Ispierto, I., Nogareda, C., Yaniz, J. L., Almeria, S., Martinez-Bello, D., Melo de Sousa, N., Beckers, J.-F., & Lopez-Gatius, F. (2010). Neospora caninum and coxiella burnetii seropositivity are related to endocrine pattern changes during gestation in lactating dairy cows. Theriogenology, 74 (2), 212-230. doi:10.1016/j.theriogenology.2010.02.004 Peer Reviewed verified by ORBi |
 | Szenci, O., Bajcsy, A. C., Bryd, E., Mádl, I., Tibold, J., Melo de Sousa, N., Bella, A., Beckers, J.-F., Keresztes, M., Faigl, V., Kulecsár, M., & Huszenicza, G. (2010). Monitoring endocrine profiles for prediction of stillbirth in Holstein-Friesian dairy cattle [Poster presentation]. 8th Annual Interntional Ruminant Reproduction Symposium (IRRC), Anchorage, United States - Alaska. |
 | Gajewski, Z., Petrajtis, M., Melo de Sousa, N., Kleczkowski, M., Beckers, J.-F., Pawlinski, B., Domanska, D., & Jakubowski, T. (2010). Comparison of accuracy of sonography, rectal palpation, and pregnancy-associated glycoproteins tests for pregnancy diagnosis in cows. In Proceedings of the XIth Middle European Buiatrics Congress. Peer reviewed |
 | Alvarez Oxiley, A. V., Melo de Sousa, N., Hornick, J.-L., Touati, K., van der Weijden, G. C., Taverne, M. A., Szenci, O., & Beckers, J.-F. (2010). Effect of exogenous circulating anti-bPL antibodies on bovine placental lactogen measurements in foetal samples. Acta Veterinaria Scandinavica, 52, 9. doi:10.1186/1751-0147-52-9 Peer Reviewed verified by ORBi |
 | Szenci, , Bajcsy, A. C., Brydl, E., Tegzes, L., Madl, I., Tibold, J., Melo de Sousa, N., Bella, A., Beckers, J.-F., Keresztes, M., Gaigl, V., Kulcsar, M., & Huszenicza, G. (2010). Prediction of stillbirth by monotoring endocrine and metabolic parameters in dairy cattle. Reproduction in Domestic Animals, 45 (Suppl 3), 109. Peer Reviewed verified by ORBi |
 | El-Battawy, K. A., Melo de Sousa, N., Szenci, O., & Beckers, J.-F. (April 2009). Pregnancy-associated Glycoprotein Profile during the First Trimester of Pregnancy in Egyptian Buffalo Cows. Reproduction in Domestic Animals, 44 (2), 161–166. doi:10.1111/j.1439-0531.2007.00941.x Peer Reviewed verified by ORBi |
 | Beckers, J.-F., Melo de Sousa, N., Dufrasne, M., & Czaplicki, G. (2009). Dosage des pepsinogènes A et C dans le sang pour diagnostiquer les verminoses gastro-intestinales chez le bovin. Nouvelles de l'Hiver, (2e trimestre), 32-33. |
 | Barbato, O., Melo de Sousa, N., Barile, V. L., Canali, C., & Beckers, J.-F. (2009). Pregnancy-Associated Glycoprotein I-73 kDa [Fragment] from Bubalus bubalis placenta -Access number P86371. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106847. |
 | Bech-Sabat, G., Lopez-Gatius, F., Garcia-Ispierto, I., Santolaria, J. P., Serrano, B., Nogareda, C., Melo de Sousa, N., Beckers, J.-F., & Yaniz, J. (2009). Pregnancy patterns during the early fetal period in high producing dairy cows treated with GnRH or progesterone. Theriogenology, 71, 920–929. doi:10.1016/j.theriogenology.2008.10.013 Peer Reviewed verified by ORBi |
 | Lopez-Gatius, F., Almeria, S., Yániz, J. L., Santolaria, P., Nogareda, C., Mezo, M., Gonzalez-Warleta, M., Castro-Hermida, J. A., Melo de Sousa, N., & Beckers, J.-F. (2009). Gamma interferon production correlates negatively with plasma levels of pregnancy-associated glycoprotein-1 (PAG-1) during gestation in dairy cows naturally infected with Neospora caninum. In M. O’Leary & J. Arnett, Pregnancy Protein Research (pp. 123-134). United States - District of Columbia: Nova Science Publishers. |
 | Szenci, O., Bajcsy, A. C., Brydl, E., Madl, I., Tibold, J., Melo de Sousa, N., Bella, A., Beckers, J.-F., Keresztes, M., Faigl, V., Kulcsar, M., & Huszenicza, G. (2009). Monitoring certain endocrine parameters for predicting stillbirth in dairy cows. In Proceedings: XVII International congress of mediterranean federation of health and production of ruminants (pp. 92). Peer reviewed |
 | Barbato, O., Melo de Sousa, N., Barile, V. L., Canali, C., & Beckers, J.-F. (2009). Pregnancy-Associated Glycoprotein J-63 kDa [Fragment] from Bubalus bubalis placenta - Access number P86370. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106846. |
 | Barbato, O., Melo de Sousa, N., Barile, V. L., Canali, C., & Beckers, J.-F. (2009). Pregnancy-Associated Glycoprotein K-60 kDa [Fragment] from Bubalus bubalis placenta - Access number P83369. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106845. |
 | Barbato, O., Melo de Sousa, N., Barile, V. L., Canali, C., & Beckers, J.-F. (2009). Pregnancy-Associated Glycoprotein A-69 kDa [Fragment] from Bubalus bubalis placenta - Access number P86372. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106848. |
 | Dethier, M., Melo de Sousa, N., Balci, S., & Beckers, J.-F. (2009). Purification de protéines associées à la gestation (PAG) chez le porc [Poster presentation]. Journée - Ecole Rennequin Sualem, Liège, Belgium. |
 | Repasi, A., Melo de Sousa, N., Beckers, J.-F., Bella, A., & Szenci, O. (2009). Effect of different prostaglandin treatment protocols on the time of ovulation and pregnancy rate in dairy cattle. Folia Veterinaria, 53 (Suppl. 2), 172. |
 | Ayad, A., Melo de Sousa, N., Sulon, J., Hornick, J.-L., Iguer-Ouada, M., & Beckers, J.-F. (2009). Correlation of five radioimmunoassay systems for measurement of bovine plasma pregnancy-associated glycoprotein concentrations at early pregnancy period. Research in Veterinary Science, 86, 377-382. doi:10.1016/j.rvsc.2008.10.003 Peer Reviewed verified by ORBi |
 | Barbato, O., Melo de Sousa, N., Malfatti, A., Debenedetti, A., Todini, L., Barile, V. L., & Beckers, J.-F. (2009). Concentrations of pregnancy-associated glycoproteins in Water buffaloes females (Bubalus bubalis) during pregnancy and postpartum periods. In M. O’Leary & J. Arnett, Pregnancy Protein Research (pp. 123-134). United States - District of Columbia: Nova Science Publishers. |
 | Barbato, O., Melo de Sousa, N., Debenedetti, A., Canali, C., Todini, L., & Beckers, J.-F. (2009). Validation of a new pregnancy-associated glycoprotein radioimmunoassay method for the detection of early pregnancy in ewes. Theriogenology, 72, 993–1000. doi:10.1016/j.theriogenology.2009.06.020 Peer Reviewed verified by ORBi |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., Panasiewicz, G., Gizejewski, Z., & Szafranska, B. (2009). Identification of multiple pregnancy-associated glycoproteins (PAGs) purified from the European bison (Eb; Bison bonasus L.) placentas. Animal Reproduction Science, 112, 229-250. doi:10.1016/j.anireprosci.2008.04.021 Peer Reviewed verified by ORBi |
 | Barbato, O., Melo de Sousa, N., Barile, V. L., Canali, C., & Beckers, J.-F. (2009). Pregnancy-Associated Glycoprotein H-63 kDa [Fragment] from Bubalus bubalis placenta - Access number P86379. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106855. |
 | Barbato, O., Melo de Sousa, N., Barile, V. L., Canali, C., & Beckers, J.-F. (2009). Pregnancy-Associated Glycoprotein E-65 kDa [Fragment] from Bubalus bubalis placenta - Access number P86376. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106852. |
 | Garcia-Ispierto, I., Lopez-Gatius, F., Almeria, S., Yaniz, J., Santolaria, P., Serrano, B., Bech-Sabat, G., Nogareda, C., Sulon, J., Melo de Sousa, N., & Beckers, J.-F. (2009). Factors affecting plasma prolactin concentrations throughout gestation in high producing dairy cows. Domestic Animal Endocrinology, 36 (2), 57-66. doi:10.1016/j.domaniend.2008.10.004 Peer Reviewed verified by ORBi |
 | Hanh, N. V., Huu, Q. X., Uoc, N. T., Sulon, J., Melo de Sousa, N., Nguyen, B. X., & Beckers, J.-F. (2009). Detection of placental lactogens in swamp buffalo by radioimmunoassay technique. Reproduction, Fertility and Development, 21 (1), 152-153. doi:10.1071/RDv21n1Ab105 Peer Reviewed verified by ORBi |
 | Serrano, B., Lopez-Gatius, F., Hunter, R., Santolaria, P., Garcia-Ispierto, I., Bech-Sabat, G., Melo de Sousa, N., Beckers, J.-F., & Yaniz, J. (2009). Anomalous Pregnancies during Late Embryonic/Early Foetal Period in High Producing Dairy Cows. Reproduction in Domestic Animals, 44 (4), 672-676. doi:10.1111/j.1439-0531.2007.01045.x Peer Reviewed verified by ORBi |
 | Gajewski, Z., Pertajitis, Melo de Sousa, N., Beckers, J.-F., Pawliński, B., & Janett, P. (2009). Pregnancy-associated glycoproteins as diagnostic tool in cattle reproduction. Schweizer Archiv für Tierheilkunde, 151 (12), 577-582. doi:10.1024/0036-7281.151.12.577 Peer Reviewed verified by ORBi |
 | Serrano, B., Lopez-Gatius, F., Santolaria, P., Almeria, S., Garcia-Ispierto, I., Bech-Sabat, G., Sulon, J., Melo de Sousa, N., Beckers, J.-F., & Yaniz, J. L. (2009). Factors Affecting Plasma Pregnancy-associated Glycoprotein 1 Concentrations Throughout Gestation in High-producing Dairy Cows. Reproduction in Domestic Animals, 44 (4), 600-605. doi:10.1111/j.1439-0531.2007.01025.x Peer Reviewed verified by ORBi |
 | Barbato, O., Melo de Sousa, N., Barile, V. L., Canali, C., & Beckers, J.-F. (2009). Pregnancy-Associated Glycoprotein B-73 kDa [Fragment] from Bubalus bubalis placenta - Access number P86373. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106849. |
 | Barbato, O., Melo de Sousa, N., Barile, V. L., Canali, C., & Beckers, J.-F. (2009). Pregnancy-Associated Glycoprotein C-61 kDa [Fragment] from Bubalus bubalis placenta - Access number P86374. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106850. |
 | Barbato, O., Melo de Sousa, N., Barile, V. L., Canali, C., & Beckers, J.-F. (2009). Pregnancy-Associated Glycoprotein D-76 kDa [Fragment] from Bubalus bubalis placenta - Access number P86375. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106851. |
 | Barbato, O., Melo de Sousa, N., Barile, V. L., Canali, C., & Beckers, J.-F. (2009). Pregnancy-Associated Glycoprotein F-58 kDa [Fragment] from Bubalus bubalis placenta - Access number P86377. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106853. |
 | Barbato, O., Melo de Sousa, N., Barile, V. L., Canali, C., & Beckers, J.-F. (2009). Pregnancy-Associated Glycoprotein G-76 kDa [Fragment] from Bubalus bubalis placenta - Access number P86378. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106854. |
 | Melo de Sousa, N., Beckers, J.-F., & Gajewski, Z. (2008). Current trends in follow-up of trophoblastic function in ruminant species. Journal of Physiology and Pharmacology, 59 Suppl 9, 65-74. Peer Reviewed verified by ORBi |
 | Alvarez Oxiley, A. V., Melo de Sousa, N., & Beckers, J.-F. (2008). Native and recombinant bovine placental lactogens. Reproductive Biology, 8 (2), 85-106. doi:10.1016/S1642-431X(12)60006-0 Peer Reviewed verified by ORBi |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2008). Pregnancy-Associated Glycoprotein C-50 kDa [Fragment] from Bison bonasus placenta - Access number P85322. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106830. |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2008). Pregnancy-Associated Glycoprotein G-71 kDa [Fragment] from Bison bonasus placenta - Access number P85325. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106833. |
 | Ayad, A., Melo de Sousa, N., Iguer-Ouada, M., & Beckers, J.-F. (2008). Effect of parity on pregnancy-associated glycoprotein (PAG) levels measurement by radioimmunoassay in bovine. Preliminary results [Poster presentation]. 24nd Scientific Meeting of the European Embryo Transfer Association, Pau, France. |
 | Hanh, N. V., Huu, Q. X., Uoc, N., Sulon, J., Melo de Sousa, N., Nguyen, B. X., & Beckers, J.-F. (2008). Detection of placental lactogens in swamp buffalo by radioimmunoassay technique. Reproduction, Fertility and Development, 21 (1), 152-153. Editorial reviewed |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2008). Pregnancy-Associated Glycoprotein H-60 kDa [Fragment] from Bison bonasus placenta - Access number P85326. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106834. |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2008). Pregnancy-Associated Glycoprotein E-55 kDa [Fragment] from Bison bonasus placenta - Access number P85323. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106831. |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2008). Pregnancy-Associated Glycoprotein C-50 kDa [Fragment] from Bison bonasus placenta - Access number P85321. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106829. |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2008). Pregnancy-Associated Glycoprotein I-50 kDa [Fragment] from Bison bonasus placenta - Access number P85327. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106835. |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2008). Pregnancy-Associated Glycoprotein F-50 kDa [Fragment] from Bison bonasus placenta - Access number P85324. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106832. |
 | Gajewski, Z., Melo de Sousa, N., Beckers, J.-F., Pawlinski, B., Olszewska, M., Thun, R., & Kleczkowski, M. (2008). Concentration of bovine pregnancy associated glycoprotein in plasma and milk: its application for pregnancy diagnosis in cows. Journal of Physiology and Pharmacology, 59 (Suppl 9), 55-64. |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2008). Unknown placental glycoprotein K-76 kDa [Fragment] from Bison bonasus placenta - Access number P85330. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106838. |
Ayad, A., Melo de Sousa, N., Iguer-Ouada, M., & Beckers, J.-F. (2008). No effect of parity on concentrations of bovine pregnancy associated glycoprotein (PAG) measurement by radioimmunoassay [Paper presentation]. 12th Annual Conference of the European Society for Domestic Animal Reproduction, Utrecht, Netherlands. |
 | Bech-Sabat, G., Lopez-Gatius, F., Yaniz, J. L., Garcia-Ispierto, I., Santolaria, P., Serrano, B., Sulon, J., Melo de Sousa, N., & Beckers, J.-F. (2008). Factors affecting plasma progesterone in the early fetal period in high producing dairy cows. Theriogenology, 69 (4), 426-32. doi:10.1016/j.theriogenology.2007.10.012 Peer Reviewed verified by ORBi |
 | Zongo, M., Pitala, W., Sawadogo, L., Boly, H., Melo de Sousa, N., Sulon, J., & Beckers, J.-F. (2008). Plasma luteinizing hormone and progesterone concentrations in Azawak zebu cows submitted to different estrus synchronization protocols. Revue d'Élevage et de Médecine Vétérinaire des Pays Tropicaux, 61 (3-4), 221-227. Peer Reviewed verified by ORBi |
 | Clerget, E., Melo de Sousa, N., Bella, A., Maghuin-Rogister, G., & Beckers, J.-F. (2008). Les glycoproteines placentaires chez les mammiferes. Annales d'Endocrinologie, 69, 18-29. doi:10.1016/j.ando.2007.10.003 Peer Reviewed verified by ORBi |
 | Melo de Sousa, N., Szenci, O., Taverne, M. A. M., Lopez-Gatius, F., & Beckers, J.-F. (2008). Pregnancy diagnosis in ruminant species. Reproduction in Domestic Animals, 43 (Suppl 5), 104. Peer Reviewed verified by ORBi |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2008). Unknown placental glycoprotein J2-45 kDa [Fragment] from Bison bonasus placenta - Access number P85329. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106837. |
 | Ayad, A., Melo de Sousa, N., Iguer-Ouada, M., & Beckers, J.-F. (2008). Correlation between five radioimmunoassay systems for bovine pregnancy associated glycoprotein (PAG) [Poster presentation]. 12th Annual Conference of the European Society for Domestic Animal Reproduction, Utrecht, Netherlands. |
 | Terroni, D., Melo de Sousa, N., Michiels, J.-A., & Beckers, J.-F. (2008). Dosage des pepsinogènes bovins A et C par RIA [Poster presentation]. Journée - Ecole Rennequin Sualem, Liège, Belgium. |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., Vervaecke, H., Panasiewicz, G., & Szafranska, B. (01 January 2008). Isolation of pregnancy-associated glycoproteins of the American bison (Bison bison) at first half of pregnancy. General and Comparative Endocrinology, 155 (1), 164-175. doi:10.1016/j.ygcen.2007.04.011 Peer Reviewed verified by ORBi |
 | Barbato, O., Melo de Sousa, N., Klisch, K., Clerget, E., Debenedetti, A., Barile, V. L., Malfatti, A., & Beckers, J.-F. (2008). Isolation of new pregnancy-associated glycoproteins from water buffalo (Bubalus bubalis) placenta by Vicia villosa affinity chromatography. Research in Veterinary Science, 85 (3), 457-66. doi:10.1016/j.rvsc.2008.01.004 Peer Reviewed verified by ORBi |
 | Gajewski, Z., Melo de Sousa, N., Konopka, A. A., Beckers, J.-F., & Thun, R. (2008). Determination of PAG in the milk and blood in cow’s in comparison to other examination methods for pregnancy diagnosis. Magyar Allatorvosok Lapja, (Suppl II), 190. |
 | Repasy, A., Melo de Sousa, N., Beckers, J.-F., Bella, A., & Szenci, O. (2008). Effect of different treatment protocols on ovulation and pregnancy rate in dairy cattle. Magyar Allatorvosok Lapja, (Suppl II), 314. |
 | Arranz, J. M., Freret, S., Fidelle, F., Fatet, A., Druart, X., Beckers, J.-F., Sulon, J., Melo de Sousa, N., Bodin, L., David, I., Lagriffoul, G., Beltran de Heredia, I., Sasieta, L., Arrese, F., Maezty Sardina, F., Lana Soto, M. P., & Lasarte, M. (2008). Réussite à l'insémination en élevages ovins laitiers pyrénéens : facteurs de variantion liés aux conduites de troupeaux. In Proceedings de la 15e Journée sur les Rencontres de Recherche chez les Ruminants (pp. 359-362). |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2008). Pregnancy-Associated Glycoprotein A-67 kDa [Fragment] from Bison bonasus placenta - Access number P85319. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106827. |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2008). Pregnancy-Associated Glycoprotein B-55 kDa [Fragment] from Bison bonasus placenta - Access number P85320. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106828. |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2008). Unknown placental glycoprotein J1-45 kDa [Fragment] from Bison bonasus placenta - P85328. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106836. |
 | Karen, A., Darwish, S., Ramoun, A., Tawfeek, K., Van Hanh, N., Melo de Sousa, N., Sulon, J., Szenci, O., & Beckers, J.-F. (November 2007). Accuracy of ultrasonography and pregnancy-associated glycoprotein test for pregnancy diagnosis in buffaloes. Theriogenology, 68 (8), 1150-1155. doi:10.1016/j.theriogenology.2007.08.011 Peer Reviewed verified by ORBi |
 | El Amiri, B., Karen, A., Sulon, J., Melo de Sousa, N., Alvarez-Oxiley, A. V., Cognié, Y., Szenci, O., & Beckers, J.-F. (June 2007). Measurement of ovine pregnancy-associated glycoprotein (PAG) during early pregnancy in Lacaune sheep. Reproduction in Domestic Animals, 42 (3), 257-262. doi:10.1111/j.1439-0531.2006.00761.x Peer Reviewed verified by ORBi |
 | Lopez-Gatius, F., Hunter, R. H. F., Garbayo, J. M., Santolaria, P., Yaniz, J., Serrano, B., Ayad, A., Melo de Sousa, N., & Beckers, J.-F. (May 2007). Plasma concentrations of pregnancy-associated glycoprotein-1 (PAG-1) in high producing dairy cows suffering early fetal loss during the warm season. Theriogenology, 67 (8), 1324-1330. doi:10.1016/j.theriogenology.2007.02.004 Peer Reviewed verified by ORBi |
 | Ayad, A., Melo de Sousa, N., Sulon, J., Iguer-Ouada, M., & Beckers, J.-F. (2007). Comparison of five radioimmunoassay systems for PAG measurement: Ability to detect early pregnancy in cows. Reproduction in Domestic Animals, 42 (4), 433-440. doi:10.1111/j.1439-0531.2006.00804.x Peer Reviewed verified by ORBi |
 | Alvarez-Oxiley, A. V., Melo de Sousa, N., Hornick, J.-L., Touati, K., van der Weijden, G. C., Taverne, M. A. M., Szenci, O., Sulon, J., Debliquy, P., & Beckers, J.-F. (2007). Radioimmunoassay of bovine placental lactogen using recombinant and native preparations: determination of fetal concentrations across gestation. Reproduction, Fertility and Development, 19 (7), 877-885. doi:10.1071/RD06173 Peer Reviewed verified by ORBi |
 | Lopez-Gatius, F., Almeria, S., Donofrio, G., Nogareda, C., Garcia-Ispierto, I., Bech-Sabat, G., Santolaria, P., Yaniz, J. L., Paben, M., Melo de Sousa, N., & Beckers, J.-F. (2007). Protection against abortion linked to gamma interferon production in pregnant dairy cows naturally infected with Neospora caninum. Theriogenology, 68 (7), 1067-1073. doi:10.1016/j.theriogenology.2007.08.006 Peer Reviewed verified by ORBi |
 | Lopez-Gatius, F., Garbayo, J. M., Santolaria, P., Yaniz, J. L., Almeria, S., Ayad, A., Melo de Sousa, N., & Beckers, J.-F. (2007). Plasma pregnancy-associated glycoprotein-1 (PAG-1) concentrations during gestation in Neospora-infected dairy cows. Theriogenology, 67 (3), 502-8. doi:10.1016/j.theriogenology.2006.08.014 Peer Reviewed verified by ORBi |
 | Barbato, O., Melo de Sousa, N., Debenedetti, A., & Beckers, J.-F. (2007). Pregnancy-Associated Glycoprotein 62 [Fragment] from Bubalus bubalis placenta - Access number P85050. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106842. |
 | Barbato, O., Melo de Sousa, N., Debenedetti, A., & Beckers, J.-F. (2007). Pregnancy-Associated Glycoprotein 70 [Fragment] from Bubalus bubalis placenta - Access number P85049. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106841. |
 | Hanh, N., Huu, Q., Uoc, N., Nguyen, B., Sulon, J., Melo de Sousa, N., & Beckers, J.-F. (2007). Estrus synchronization, artificial insemination, and pregnancy diagnosis in water buffaloes (Bubalus bubalis). Reproduction, Fertility and Development, 19 (1), 198. doi:10.1071/RDv19n1Ab162 Peer Reviewed verified by ORBi |
 | Barbato, O., Merlo, M., Melo de Sousa, N., Trentin, E., Beckers, J.-F., & Gabai, G. (2007). Relationship between progesterone and pregnancy-associated glycoprotein concentrations in the maternal circulation during early pregnancy in dairy cows. In Proceedings of the 23rd Scientific Meeting of the European Embryo Transfer Association. |
Melo de Sousa, N., Barbato, O., Bella, A., Alvarez Oxiley, A. V., Sulon, J., Debenedetti, A., & Beckers, J.-F. (2007). The Pregnancy-Associated Glycoproteins: Biochemical Aspects and Clinical Application for Pregnancy Follow-up [Paper presentation]. VII Congresso de la Societá Italiana di Fisiologia Veterinaria, Silvi Marina (Teramo), Italy. |
 | Ayad, A., Melo de Sousa, N., Sulon, J., Hornick, J.-L., Watts, J., Lopez-Gatius, F., Iguer-Ouada, M., & Beckers, J.-F. (2007). Influence of progesterone concentrations on secretory functions of trophoblast and pituitary during the first trimester of pregnancy in dairy cattle. Theriogenology, 67 (9), 1503-1511. doi:10.1016/j.theriogenology.2007.03.010 Peer Reviewed verified by ORBi |
 | Lopez-Gatius, F., Garbayo, J. M., Santolaria, P., Yaniz, J., Ayad, A., Melo de Sousa, N., & Beckers, J.-F. (January 2007). Milk production correlates negatively with plasma levels of pregnancy-associated glycoprotein (PAG) during the early fetal period in high producing dairy cows with live fetuses. Domestic Animal Endocrinology, 32 (1), 29-42. doi:10.1016/j.domaniend.2005.12.007 Peer Reviewed verified by ORBi |
 | Barbato, O., Melo de Sousa, N., Debenedetti, A., & Beckers, J.-F. (2007). Pregnancy-Associated Glycoprotein 75 [Fragment] from Bubalus bubalis placenta - Access number P85048. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106839. |
 | Bella, A., Melo de Sousa, N., Dehimi, M. L., Watts, J., & Beckers, J.-F. (2007). Western analyses of pregnancy-associated glycoprotein family (PAG) in placental extracts of various mammals. Theriogenology, 68 (7), 1055-1066. doi:10.1016/j.theriogenology.2007.08.002 Peer Reviewed verified by ORBi |
 | Ayad, A., Melo de Sousa, N., Bella, A., Iguer-Ouada, M., & Beckers, J.-F. (2007). Pregnancy-associated glycoprotein (PAG) concentrations during the post partum period in four non-pregnant cows [Poster presentation]. The Life Science Summit, Aachen, Germany. |
 | Ayad, A., Melo de Sousa, N., Hornick, J.-L., Touati, K., Iguer-Ouada, M., & Beckers, J.-F. (2006). Endocrinology of pregnancy in the cow: embryonic signals, placental hormones and proteins. Annales de Médecine Vétérinaire, 150 (4), 212-226. Peer Reviewed verified by ORBi |
 | Humblet, M.-F., Melo de Sousa, N., Boutet, Beckers, J.-F., Godeau, J. M., & Alvarez Oxiley, A. V. (2006). A preliminary study of serum haptoglobin in bovine fetal blood. In Proceedings of the 6th European Colloquium on Acute Phase Proteins. |
 | Chavatte-Palmer, P., Melo de Sousa, N., Laigre, P., Camous, S., Ponter, A. A., Beckers, J.-F., & Heyman, Y. (2006). Ultrasound fetal measurements and pregnancy associated glycoprotein secretion in early pregnancy in cattle recipients carrying somatic clones. Theriogenology, 66 (4), 829-840. doi:10.1016/j.theriogenology.2006.01.061 Peer Reviewed verified by ORBi |
 | Klisch, K., Boos, A., Friedrich, M., Herzog, K., Feldmann, M., Melo de Sousa, N., Beckers, J.-F., LeiseR, R., & Schuler, G. (2006). The glycosylation of pregnancy-associated glycoproteins and prolactin-related protein-I in bovine binucleate trophoblast giant cells changes before parturition. Reproduction, 132, 791-798. doi:10.1530/REP-06-0040 Peer Reviewed verified by ORBi |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2006). Pregnancy-Associated Glycoprotein 72 [Fragment] from Bison bison placenta - Access number P84916. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106824. |
 | Benyounes, A., Lamrani, F., Melo de Sousa, N., Sulon, J., Folch, J., Beckers, J.-F., & Guellati, M. A. (2006). Suivi de la gestation chez la brebis Ouled Djellal par dosage de la protéine associée a la gestation et de la progestérone. Revue d'Élevage et de Médecine Vétérinaire des Pays Tropicaux, 59 (1-4), 65-73. Peer Reviewed verified by ORBi |
 | Touati, K., Melo de Sousa, N., Van der Weijden, G. C., Taverne, M. A. M., Szenci, O., & Beckers, J.-F. (2006). Cannulation of bovine fetuses for a long period blood collection: the chirurgical approach. In Proceedings: 24th World Buiatrics Congress. Peer reviewed |
 | Bella, A., Melo de Sousa, N., & Beckers, J.-F. (2006). The pregnancy-associated glycoproteins expressed in epitheliochorial placenta: new investigations by Western blot technique [Poster presentation]. 10e Journée de Rencontre Bioforum, Liège, Belgium. |
 | Melo de Sousa, N., Ayad, A., Beckers, J.-F., & Gajewski, Z. (2006). Pregnancy-Associated Glycoproteins (Pag) as Pregnancy Markers in the Ruminants. Journal of Physiology and Pharmacology, 57 (Suppl 8), 153-71. Peer Reviewed verified by ORBi |
 | López-Gatius, F., Garbayo, J. M., Serrano, B., Santolaria, P., Yániz, J., Almería, S., Ayad, A., Melo de Sousa, N., & Beckers, J.-F. (2006). Breed-cross pregnancies increased plasmatic pregnancy-associated glycoprotein (PAG) concentration in pregnant Neospora-seropositive dairy cows. Reproduction in Domestic Animals, 41 (suppl 2), 112. Peer Reviewed verified by ORBi |
 | Kiewisz, J., Melo de Sousa, N., Beckers, J.-F., & Szafranska, B. (2006). Pregnancy-Associated Glycoprotein 76 [Fragment] from Bison bison placenta - Access number P84918. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106826. |
 | Ayad, A., Melo de Sousa, N., Sulon, J., Clerget, E., Iguer-ouada, M., & Beckers, J.-F. (2006). Specificity of different RIA systems for measurement of bovine pregnancy associated glycoproteins against carbohydrates and placental hormones [Poster presentation]. 10e Journée de Rencontre Bioforum, Liège, Belgium. |
 | Barbato, O., Melo de Sousa, N., Klisch, K., Clerget, E., Debenedetti, A., Barile, V. L., Malfatti, A., & Beckers, J.-F. (2006). Isolation of PAG from buffalo (Bubalus bubalis) placenta [Poster presentation]. Congress of the Society for Reproduction and Fertility. |
 | Hanh, N. V., Huu, Q. X., Uoc, N. T., Nguyen, B. X., Sulon, J., Melo de Sousa, N., & Beckers, J.-F. (2006). Estrus synchronization, artificial insemination and pregnancy diagnosis in water buffaloes (Bubalus bubalis). Reproduction, Fertility and Development, 19 (1), 198. Editorial reviewed |
 | Melo de Sousa, N., Ayad, A. H., Beckers, J.-F., & Gajewski, Z. (2006). PAG as a pregnancy marker in the ruminant. Journal of Physiology and Pharmacology, 57 (Suppl. 2), 111. Editorial reviewed |
 | Szenci, O., Takacs, E., Sulon, J., Melo de Sousa, N., & Beckers, J.-F. (2006). Evaluation of GnRH treatment 12 days after AI in the reproductive performance of dairy cows. Theriogenology, 66 (8), 1811-1815. doi:10.1016/j.theriogenology.2006.04.034 Peer Reviewed verified by ORBi |
 | Kiewisz, J., Melo de Sousa, N., & Beckers, J.-F. (2006). Pregnancy-Associated Glycoprotein 74 [Fragment] from Bison bison placenta - Access number P84917. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106825. |
 | Klisch, K., Herzog, K., Feldmann, M., Schuler, G., Friedrich, M., Holtz, W., Melo de Sousa, N., & Beckers, J.-F. (2006). The Glycosylation of Bovine Pregnancy-Associated Glycoproteins Changes before Parturition. Reproduction in Domestic Animals. Peer Reviewed verified by ORBi |
 | Klisch, K., Melo de Sousa, N., Beckers, J.-F., Schuler, G., & Leiser, R. (2006). From lectin-histochemistry to pregnancy diagnosis by lectin-ELISA: applications of lectins for the characterisation of bovine pregnancy-associated glycoprotein. In Proceedings of the XXVIth Congress of the European Association of Veterinary Anatomists (pp. 53). |
 | Ayad, A., Melo de Sousa, N., Sulon, J., Iguer-Ouada, M., & Beckers, J.-F. (2006). Progesterone, luteinizing hormone, prolactin and pregnancy-associated glycoproteins during the first trimester pregnancy in cattle [Poster presentation]. 22nd Scientific Meeting of the European Embryo Transfer Association, Zug, Switzerland. |
 | Ayad, A., Melo de Sousa, N., Sulon, J., Iguer-Ouada, M., & Beckers, J.-F. (2006). The ability of five radioimmunoassay systems to detect early pregnancy-associated glycoprotein in bovine plasma [Poster presentation]. 22nd Scientific Meeting of the European Embryo Transfer Association, Zug, Switzerland. |
 | Alvarez Oxiley, A. V., Melo de Sousa, N., Sulon, J., & Beckers, J.-F. (2006). Fetal profiles of bovine placental lactogen (PL) and insulin like growth factors (IGF-I and IGF–II) through the late gestation [Poster presentation]. 10e Journée de Rencontre Bioforum, Liège, Belgium. |
 | Bella, A., Melo de Sousa, N., & Beckers, J.-F. (2006). The pregnancy-associated glycoproteins expressed in epitheliochorial placenta: new investigations by Western blot technique [Poster presentation]. 10e Journée de Rencontre Bioforum, Liège, Belgium. |
 | Klisch, K., Melo de Sousa, N., Beckers, J.-F., Leiser, R., & Pich, A. (2005). Pregnancy associated glycoprotein-1,-6,-7, and-17 are major products of bovine binucleate trophoblast giant cells at midpregnancy. Molecular Reproduction and Development, 71 (4), 453-460. doi:10.1002/mrd.20296 Peer Reviewed verified by ORBi |
 | Heyman, Y., Chavatte-Palmer, P., Melo de Sousa, N., Constant, F., Guillomot, M., Vignon, X., & Beckers, J.-F. (2005). Pregnancy-associated glycoprotein (PAG) profiles during the peri-implantation period in recipients carrying bovine somatic clones: preliminary results [Poster presentation]. 31st Annual Conference of the International Embryo Transfer Society (IETS), Copenhagen, Denmark. |
Pitala, W., Zongo, M., Boly, H., Coulibali, I., Ba, Y., Melo de Sousa, N., Leroy, P., Beckers, J.-F., & Sawadogo, L. (2005). Induction des chaleurs chez le zebu Goudali : observation de l’oestrus et insémination artificielle. |
 | Heyman, Y., Chavatte-Palmer, P., Melo de Sousa, N., Constant, F., Guillomot, M., Vignon, X., & Beckers, J.-F. (2004). Pregnancy-Associated Glycoprotein (PAG) profiles during the peri-implantation period in recipients carrying bovine somatic clones: preliminary results. Journal of Reproduction and Fertility. Abstract Series, 17 (2), 168–169. Peer reviewed |
 | Touati, K., Melo de Sousa, N., Gangl, M., Alvarez-Oxiley, A. V., Revy, D., Van der Weijden, G. C., Taverne, M. A. M., Serteyn, D., & Beckers, J.-F. (2004). Investigation on prenatal endocrinology: preliminary results on long term catheterisation of bovine foetuses. Reproduction. Abstract Series, 31, 26. Peer reviewed |
 | Gajewski, Z., Beckers, J.-F., Melo de Sousa, N., & Thun, R. (2004). Use of pregnancy specific proteins, P4, PGFM and E1S assays to monitor pregnancy in sheep. Reproduction in Domestic Animals, 39 (4), 288. Peer Reviewed verified by ORBi |
 | Pitala, W., Boly, H., Coulibaly, I., Melo de Sousa, N., Sawadogo, L., Leroy, P., & Beckers, J.-F. (2004). Application de l'échographie à l'étude de la dynamique folliculaire à l'oestrus induit chez les femelles zébu "Goudali". Tropicultura, 22 (3), 110-115. Peer Reviewed verified by ORBi |
Alvarez-Oxiley, A. V., Melo de Sousa, N., Touati, K., Revy, D., Van der Weijden, G. C., Taverne, M. A. M., Hornick, J.-L., & Beckers, J.-F. (2004). Radioimmunoassay of bovine placental lactogen (bPL) using an antiserum raised in guinea pigs: measurement in foetal plasma. |
 | Beckers, J.-F., Touati, K., Alvarez-Oxiley, A. V., & Melo de Sousa, N. (2004). Embryonic signals and pregnancy diagnosis in ruminants. Reproduction in Domestic Animals, 39 (4), 252. Peer Reviewed verified by ORBi |
 | Faye, D., Sulon, J., Kane, Y., Beckers, J.-F., Leak, S., Kaboret, Y., Melo de Sousa, N., Losson, B., & Geerts, S. (2004). Effects of an experimental Trypanosoma congolense infection on the reproductive performance of West African Dwarf goats. Theriogenology, 62 (8), 1438-51. doi:10.1016/j.theriogenology.2004.02.007 Peer Reviewed verified by ORBi |
 | Melo de Sousa, N., Gonzalez, F., Karen, A., El Amiri, B., Sulon, J., Baril, G., Cognié, Y., Szenci, O., & Beckers, J.-F. (2004). Diagnostic et suivi de gestation chez la chèvre et la brebis [Paper presentation]. 11e Rencontres autour des Recherches sur les Ruminants (3R), La Villete, Paris, France. |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2004). Isolation and characterization of eight pregnancy-associated glycoproteins present at high levels in the ovine placenta between day 60 and day 100 of gestation. Reproduction Nutrition Development, 44 (3, May-Jun), 169-181. doi:10.1051/rnd:2004025 Peer Reviewed verified by ORBi |
 | Banga-Mboko, H., Sulon, J., Lange, J. M., Remy, B., Youssao, I., Melo de Sousa, N., El Amiri, B., Sangild, P. T., Maes, D., Closset, J., & Beckers, J.-F. (May 2003). An improved radioimmunoassay for measurement of pepsinogen in porcine blood samples. Veterinary Journal, 165 (3), 288-295. doi:10.1016/S1090-0233(02)00183-1 Peer Reviewed verified by ORBi |
 | Karen, A., Beckers, J.-F., Sulon, J., Melo de Sousa, N., Szabados, K., Reczigel, J., & Szenci, O. (May 2003). Early pregnancy diagnosis in sheep by progesterone and pregnancy-associated glycoprotein tests. Theriogenology, 59 (9), 1941-1948. doi:10.1016/S0093-691X(02)01289-X Peer Reviewed verified by ORBi |
El Amiri, B., Karen, A., Sulon, J., Alvarez Oxiley, A. V., Alomar, M., Melo de Sousa, N., & Beckers, J.-F. (2003). Validation of two homologous radioimmunoassays for measuring pregnancy-associated glycoprotein in ewes. |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2003). Pregnancy-Associated Glycoprotein 61b [Fragment] from Ovis aries placenta - Access number P83494. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106817. |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2003). Pregnancy-Associated Glycoprotein 66d [Fragment] from Ovis aries placenta - Access number P83496. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106819. |
 | Moreira da Silva, F., Melo de Sousa, N., Figueiredo, J. R., & Beckers, J.-F. (2003). Placental proteins secreted in maternal circulation: useful indicators for both pregnancy diagnosis and embryonic mortality in bovine species. Revista Portuguesa de Zootecnia, 10 (1), 99-121. |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2003). Pregnancy-Associated Glycoprotein 55h [Fragment] from Ovis aries placenta - Access number P83500. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106823. |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2003). Pregnancy-Associated Glycoprotein 66e [Fragment] from Ovis aries placenta - Access number P83497. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106820. |
 | Banga-Mboko, H., Halloy, D., Perenyi, Z., El Amiri, B., Melo de Sousa, N., & Beckers, J.-F. (January 2003). Pregnancy in rabbits actively immunized against bovine pregnancy-associated glycoprotein 1. Fertility and Sterility, 79 (1), 226-227. doi:10.1016/S0015-0282(02)04543-0 Peer Reviewed verified by ORBi |
 | El Amiri, B., Cognié, Y., Sulon, J., Alvarez Oxiley, A. V., Aurel, M. R., Lagriffoul, G., Douaik, A., Melo de Sousa, N., & Beckers, J.-F. (2003). Pregnancy-associated glycoprotein concentrations in plasma and milk samples for early pregnancy diagnosis in Lacaune dairy sheep. Reproduction in Domestic Animals, 38 (4), 322. Peer Reviewed verified by ORBi |
 | Pitala, W., Boly, H., Zongo, M., Ba, Y., Melo de Sousa, N., Sawadogo, L., Leroy, P., & Beckers, J.-F. (2003). Diagnostic et suivi de la gravidité chez le zébu par échographie. Revue d'Élevage et de Médecine Vétérinaire des Pays Tropicaux, 56 (3-4), 171-176. Peer Reviewed verified by ORBi |
 | Melo de Sousa, N., Zongo, M., Pitala, W., Boly, H., Sawadogo, L., Sanon, M., de Figueiredo, J. R., Goncalves, P. B. D., El Amiri, B., Perenyi, Z., & Beckers, J.-F. (2003). Pregnancy-associated glycoprotein concentrations during pregnancy and the postpartum period in Azawak Zebu cattle. Theriogenology, 59 (5-6), 1131-1142. doi:10.1016/S0093-691X(02)01160-3 Peer Reviewed verified by ORBi |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2003). Pregnancy-Associated Glycoprotein 60f [Fragment] from Ovis aries placenta - Access number P83498. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106821. |
 | El Amiri, B., Melo de Sousa, N., Mecif, K., Desbuleux, H., Banga-Mboko, H., & Beckers, J.-F. (2003). Double radial immunodiffusion as a tool to identify pregnancy-associated glycoproteins in ruminant and nonruminant placentae. Theriogenology, 59 (5-6), 1291-1301. doi:10.1016/S0093-691X(02)01176-7 Peer Reviewed verified by ORBi |
 | El Amiri, B., Karen, A., Cognié, Y., Melo de Sousa, N., Hornick, J.-L., Szenci, O., & Beckers, J.-F. (2003). Diagnosis and monitoring of pregnancy in sheep: reality and perspectives. Productions Animales, 16 (2), 79-90. Peer Reviewed verified by ORBi |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2003). Pregnancy-Associated Glycoprotein 58a [Fragment] from Ovis aries placenta - Access number P83493. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106816. |
 | El Amiri, B., Remy, B., Melo de Sousa, N., Joris, B., Otthiers, N., Perenyi, Z., Mboko, H. B., & Beckers, J.-F. (2003). Isolation and partial characterization of three pregnancy-associated glycoproteins from the ewe placenta. Molecular Reproduction and Development, 64 (2), 199-206. doi:10.1002/mrd.10246 Peer Reviewed verified by ORBi |
 | Barbato, O., Melo de Sousa, N., Malfatti, A., Beckers, J.-F., De Santis, G., & Debenedetti, A. (2003). Purificazione delle proteine associate alla gestazione (PAG) nella bufala (Bubalus bubalis): risultati preliminari. In Atti 2o Congresso Nazionale sull’Allevamento del Bufalo (pp. 279-283). |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2003). Pregnancy-Associated Glycoprotein 59g [Fragment] from Ovis aries placenta - Access number P83499. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106822. |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2003). Pregnancy-Associated Glycoprotein 58c [Fragment] from Ovis aries placenta - Access number - P83495. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106818. |
 | Alomar, M., Sulon, J., El Amiri, B., Melo de Sousa, N., & Beckers, J.-F. (2003). Progesterone, cortisol and pregnancy-associated glycoprotein concentrations in three aborted cows [Poster presentation]. 8e Journée de rencontre Bioforum, Liège, Belgium. |
 | Melo de Sousa, N., El Amiri, B., Remy, B., Drion, P., & Beckers, J.-F. (2002). Signaux embryonnaires de la gestation. In Journées Européennes de la Société Française de Buiatrie (pp. 95-115). Peer reviewed |
El Amiri, B., Remy, B., Melo de Sousa, N., Gerardin-Ottiers, N., & Beckers, J.-F. (2002). Pregnancy-associated glycoproteins isolated from ewe placenta. In Proceeding of pregnancy-associated glycoproteins isolated from ewe placenta (pp. 166). |
 | Melo de Sousa, N. (2002). Purificacao, caracterizacao e dosagem radioimunologica de glicoproteinas associadas a gestacao em zebuinos [Doctoral thesis, Universidade Federal de Santa Maria]. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/77421 |
 | Perenyi, Z. S., Szenci, O., Drion, P., Banga-Mboko, H., Melo de Sousa, N., El Amiri, B., & Beckers, J.-F. (2002). Aspartic proteinase members secreted by the ruminant placenta: Specificity of three radioimmunoassay systems for the measurement of pregnancy-associated glycoproteins. Reproduction in Domestic Animals, 37 (6), 324-329. doi:10.1046/j.1439-0531.2002.t01-1-00366.x Peer Reviewed verified by ORBi |
 | Banga-Mboko, H., Thilman, P., Desbuleux, H., Aoumeur, Y., Youssao, I., Perenyi, Z., Melo de Sousa, N., El Amiri, B., Leroy, P., & Beckers, J.-F. (2002). Pepsinogen and progesterone concentration during pregnancy in sows. Biotechnologie, Agronomie, Société et Environnement, 6 (1), 12-13. Peer Reviewed verified by ORBi |
 | Perenyi, Z., Desbuleux, H., Sulon, J., Banga-Mboko, H., Melo de Sousa, N., El Amiri, B., Szenci, O., & Beckers, J.-F. (2002). Pregnancy-associated glycoprotein profiles of 5 heifers measured by three radioimmunoassay systems. Biotechnologie, Agronomie, Société et Environnement, 6 (1), 6-7. Peer Reviewed verified by ORBi |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2002). Pregnancy-Associated Glycoprotein 58a [Fragment] from Ovis aries placenta - Access number P83493. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106815. |
Karen, A., Beckers, J.-F., Sulon, J., Melo de Sousa, N., Szabados, K., Reczigel, J., & Szenci, O. (2002). Early pregnancy diagnosis in sheep by progesterone and pregnancy-associated glycoprotein tests. Biotechnologie, Agronomie, Société et Environnement, 6 (1), 8. Peer Reviewed verified by ORBi |
 | El Amiri, B., Remy, B., Melo de Sousa, N., Banga-Mboko, H., Perenyi, Z., Gerardin, N., & Beckers, J.-F. (2002). Pregnancy-associated glycoproteins isolated from the ewe placenta removed at two different stages of gestation. In Proceedings of the 7e Journée de Rencontre Bioforum (pp. 25). |
 | Melo de Sousa, N., Figueiredo, J. R., El Amiri, B., Banga-Mboko, H., & Beckers, J.-F. (2002). Potential influence of pregnancy hormones and proteins synthesized during pregnancy on the maternal immunological status. Annales de Médecine Vétérinaire, 146 (2), 71-82. Peer Reviewed verified by ORBi |
 | Melo de Sousa, N., Remy, B., El Amiri, B., De Figueiredo, J. R., Banga-Mboko, H., Goncalves, P. B. D., & Beckers, J.-F. (2002). Characterization of pregnancy-associated glycoproteins extracted from zebu (Bos indicus) placentas removed at different gestational periods. Reproduction Nutrition Development, 42 (3), 1-15. doi:10.1051/rnd:2002021 Peer Reviewed verified by ORBi |
 | Melo de Sousa, N., Remy, B., El Amiri, B., Figueiredo, J. R., & Beckers, J.-F. (2002). Pregnancy-Associated Glycoprotein 67 [Fragment] from Bos indicus placenta (Access number P83126). ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106792. |
 | Melo de Sousa, N., El Amiri, B., Sulon, J., & Beckers, J.-F. (2002). Dosages réalisables pour le diagnostic de gestation. In Journées Européennes de la Société Française de Buiatrie 2002 (pp. 137-152). |
 | El Amiri, B., Remy, B., Melo de Sousa, N., Sulon, J., Gerardin, N., Desbuleux, H., Perenyi, Z., Banga-Mboko, H., & Beckers, J.-F. (2002). Investigations nouvelles sur les protéines associées à la gestation chez la brebis en vue d’application clinique [Poster presentation]. 19ième Congrès Vétérinaire Maghrébin, Tunis, Tunisia. |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2002). Pregnancy-Associated Glycoprotein 59 [Fragment] from Ovis aries placenta - Access number P83444. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106807. |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2002). Pregnancy-Associated Glycoprotein 55 [Fragment] from Ovis aries placenta - Access number P83202. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106805. |
 | Melo de Sousa, N., Remy, B., El Amiri, B., Figueiredo, J. R., & Beckers, J.-F. (2002). Probable alpha-fetoprotein - Bos indicus - Accession number P83128. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106799. |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2002). Pregnancy-Associated Glycoprotein 57 [Fragment] from Ovis aries placenta - Access number P83203. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106806. |
 | El Amiri, B., Remy, B., Melo de Sousa, N., & Beckers, J.-F. (2002). Fatty Acid Binding Protein [Fragment] from Ovis aries placenta - Access number P83204. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106814. |
Melo de Sousa, N., Remy, B., El Amiri, B., Figueiredo, J. R., & Beckers, J.-F. (2002). Alpha-N-Acetylgalactosaminidase [Fragment] from Bos indicus placenta - Access number P83127. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/106797. |
Melo de Sousa, N., Zongo, M., Pitala, W., Boly, H., Sanon, M. G., Sawadogo, L., Rutten, A., Dode, M. A. N., Figueiredo, J. R., El Amiri, B., Perenyi, Z., & Beckers, J.-F. (2002). Pregnancy-associated glycoprotein concentrations during pregnancy and postpartum periods in zébu cattle. Biotechnologie, Agronomie, Société et Environnement, 6 (1), 10-11. Peer Reviewed verified by ORBi |
 | El Amiri, B., Remy, B., Melo de Sousa, N., Gerardin-Otthiers, N., Desbuleux, H., Perenyi, Z., Banga-Mboko, H., & Beckers, J.-F. (2002). Purification and characterization of a pregnancy-associated glycoprotein (ovPAG-6) from sheep placenta removed between 66 to 100 days of gestation. Biotechnologie, Agronomie, Société et Environnement, 6 (1), 12-13. Peer Reviewed verified by ORBi |
 | El Amiri, B., Remy, B., Melo de Sousa, N., Gerardin, N., & Beckers, J.-F. (2002). Pregnancy-associated proteins isolated from ewe placenta. In Proceedings of the 18th Scientific Meeting of the European Embryo Transfer Association (pp. 166). |
 | Banga-Mboko, H., Godeau, J.-M., El Amiri, B., Drion, P., Perenyi, Z., Melo de Sousa, N., & Beckers, J.-F. (2002). The use of blood pepsinogen as a biomarker of the integrity of the porcine gastric mucosa : A review. Part 1: History, physiopathology of gastric mucosa and different forms of pepsinogens. Annales de Médecine Vétérinaire, 146 (6), 339-346. Peer Reviewed verified by ORBi |
 | Zongo, M., Pitala, W., Boly, H., Sulon, J., Melo de Sousa, N., Leroy, P., & Sawadogo, L. (2001). Profils de la progestérone des vaches zébu ‘Azawak’ et taurin ‘Gourunsi’ après induction de l’œstrus aux progestagènes combinés à la prostaglandine. Tropicultura, 19 (3), 131-134. Peer Reviewed verified by ORBi |
Melo de Sousa, N., Remy, B., El Amiri, B., Banga-Mboko, H., Perenyi, Z., Figueiredo, J. R., Gonçalves, P. B. D., Wattiez, R., Falmagne, P., & Beckers, J.-F. (2001). Identification of pregnancy-associated glycoprotein 1 (PAG-1) in zebu (Bos indicus) placenta. Theriogenology, 55 (1), 327. Peer Reviewed verified by ORBi |
 | Melo de Sousa, N., Figueiredo, J. R., & Beckers, J.-F. (2001). Placental proteins in ruminants: biochemical, physiological and zootechnical aspects. In R. Renaville & A. Burny (Eds.), Biotechnology in Animal Husbandry (pp. 179-208). Netherlands: Kluwer Academic Publishers. |
 | Perenyi, Z., Desbuleux, H., Sulon, J., Szenci, O., Banga-Mboko, H., El Amiri, B., Melo de Sousa, N., & Beckers, J.-F. (2001). Ability of three different antisera to recognize pregnancy-associated glycoproteins in heifers during the first fifty days of gestation [Poster presentation]. 17th Annual Meeting AETE, Lyon, France. |
 | Debenedetti, A., Melo de Sousa, N., Sulon, J., Beckers, J.-F., & Malfatti, A. (2001). Pregnancy-associated glycoprotein detection by RIA in pregnant buffalo cows (Bubalus bubalis). Biotechnologie, Agronomie, Société et Environnement, 5 (suppl), 62. Peer Reviewed verified by ORBi |
 | Zongo, M., Pitala, W., Boly, H., Sulon, J., Melo de Sousa, N., Leroy, P., Beckers, J.-F., & Sawadogo, L. (2001). Profils de la progestérone des vaches zébu « Azawak » et taurins « Gourunsi » après induction de l’oestrus aux progestagènes combinés à la prostaglandine et à la PMSG. Tropicultura, 19 (3), 131-134. Peer Reviewed verified by ORBi |
 | Banga-Mboko, H., Sulon, J., Closset, J., Remy, B., El Amiri, B., Melo de Sousa, N., & Beckers, J.-F. (2001). Radioimmunoassay of porcine pepsinogen. Biotechnologie, Agronomie, Société et Environnement, 5 (1), 25-26. Peer Reviewed verified by ORBi |
 | Zongo, M., Pitala, W., Boly, H., Leroy, P., Melo de Sousa, N., Beckers, J.-F., & Sawadogo, L. (2001). Profil de la LH a l’oestrus induit des taurin Gourunsi et zebu Azawak [Paper presentation]. Annales de l’Université de Ouagadougou. |
 | Melo de Sousa, N., Sulon, J., Remy, B., Dode, M. A. N., Banga-Mboko, H., Perenyi, Z., Gonçalves, P. B. D., El Amiri, B., Figueiredo, J. R., & Beckers, J.-F. (2001). Radioimmunoassay of pregnancy-associated glycoprotein 1 (PAG1) isolated from zebu (Bos indicus) placenta: preliminary results. |
 | El Amiri, B., Remy, B., Melo de Sousa, N., Sulon, J., Gerardin-Otthiers, N., Banga-Mboko, H., Desbuleux, H., & Beckers, J.-F. (2001). Microsequencing of three pregnancy-associated glycoproteins isolated from sheep placenta [Poster presentation]. 6e Journée de Rencontre Bioforum, BioLiège, Liège, Belgium. |
 | El Amiri, B., Remy, B., Sulon, J., Desbuleux, H., Banga-Mboko, H., Melo de Sousa, N., & Beckers, J.-F. (2001). Isolation and partial purification of pregnancy-associated glycoproteins from sheep placenta. Biotechnologie, Agronomie, Société et Environnement, 5 (1), 23-24. Peer Reviewed verified by ORBi |
 | Zongo, M., Boly, H., Sawadogo, L., Pitala, W., Melo de Sousa, N., Beckers, J.-F., & Leroy, P. (2001). Insémination artificielle des vaches ‘Azawak’ et taurin ‘Gourunsi’ au Burkina Faso. Tropicultura, 19 (2), 75-78. Peer Reviewed verified by ORBi |
 | Melo de Sousa, N., Figueiredo, J. R., El Amiri, B., Banga-Mboko, H., Szenci, O., & Beckers, J.-F. (2001). Chorioví gonadotropin a specifický glykoprotein u březích přežvýkavcŭ. In Proceedings of the 3rd Central European Buiatric Congress (pp. 430-432). Peer reviewed |
 | Derivaux, J., Sulon, J., Pirson, J.-L., Melo de Sousa, N., Gonzalez, F., Calero, P. O., & Beckers, J.-F. (2000). Chez la chèvre gestante: climat hormonal et diagnostic de la gestation. Sillon Belge, p. 18. |
 | Melo de Sousa, N., Remy, B., El Amiri, B., Banga-Mboko, H., Figueiredo, J. R., Gonçalves, P. B. D., Wattiez, R., Dode, M. A. N., Falmagne, P., & Beckers, J.-F. (2000). Isolation of the pregnancy-associated glycoprotein 1 (PAG-1) from zebu (Bos indicus) placenta [Poster presentation]. 16th Scientific Meeting of the European Embryo Transfer Association, Santander, Spain. |
 | Melo de Sousa, N., Figueiredo, J. R., Derivaux, J., & Beckers, J.-F. (2000). Influences potentielles des hormones de la gestation sur l’état immunitaire de la mère, conséquences diagnostiques. In Recueil de l'Association pour l’Etude de la Reproduction Animale (pp. 29-48). |
 | Drame, D., Zongo, M., Melo de Sousa, N., Fall, A., Diak, A., Sulon, J., Hansen, C., & Beckers, J.-F. (2000). Pregnancy-associated glycoprotein concentrations in N’Dama followed several months after parturition and maintained with a fertile bull [Poster presentation]. 16th Scientific Meeting of the European Embryo Transfer Association, Santander, Spain. |
 | Melo de Sousa, N., Banga-Mboko, H., El Amiri, B., Perenyi, Z., Sulon, J., Figueiredo, J. R., & Beckers, J.-F. (2000). Comparison of native and inherited immunoglobulins in rabbits immunized against bovine pregnancy-associated glycoprotein-1 (boPAG-1). |
 | El Amiri, B., Melo de Sousa, N., Perenyi, Z., Banga-Mboko, H., & Beckers, J.-F. (2000). Pregnancy-associated glycoproteins (PAG) in Bos taurus taurus and Bos taurus indicus [Poster presentation]. Annual Conferenco of the International Embryo Transfer Society (IETS), Maastricht, Netherlands. |
 | Banga-Mboko, H., Melo de Sousa, N., El Amiri, B., Perenyi, Z., & Beckers, J.-F. (2000). Normal ongoing pregnancy in rabbit immunised against bovine pregnancy-associated glycoprotein-1 (boPAG-1). |
 | El Amiri, B., Garbayo, J. M., Mecif, K., Melo de Sousa, N., Banga-Mboko, H., Perenyi, Z., & Beckers, J.-F. (1999). The pregnancy-associated glycoproteins in sheep: new investigations by using the Ouchterlony technique [Poster presentation]. 15th Scientific Meeting of the European Embryo Transfer Association, Lyon, France. |
 | Gajewski, Z., Beckers, J.-F., Melo de Sousa, N., Thun, R., Sulon, J., & Faundez, R. (1999). Determination of Pregnancy-Associated Glycoprotein concentrations in sheep: a retrospective study. Advances in Cell Biology, 26 (Supplement 12), 89-96. Peer Reviewed verified by ORBi |
 | Melo de Sousa, N., Garbayo, J. M., Figueiredo, J. R., Sulon, J., Gonçalves, P. B. D., & Beckers, J.-F. (1999). Pregnancy-Associated Glycoprotein and progesterone profiles during pregnancy and postpartum in native goats from north-east of Brazil. Small Ruminant Research, 32, 137-147. doi:10.1016/S0921-4488(98)00171-0 Peer Reviewed verified by ORBi |
 | Melo de Sousa, N., Garbayo, J. M., Figueiredo, J. R., Sulon, J., & Beckers, J.-F. (1998). Sensitivity and precision of a heterologous PAG (Pregnancy-Associated Glycoprotein) radioimmunoassay. Arquivos - Faculdade de Veterinária, UFRGS, 26 (1 (Suppl)), 372-373. |
 | Melo de Sousa, N. (1997). Perfis sorologicos de PAG (Pregnancy-Associated Glycoprotein) e progesterona durante a gestacao e periodo pos-parto em cabras Moxoto e Caninde [Specialised master, Ceara State University]. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/77424 |
 | Melo de Sousa, N., Garbayo, J. M., Figueiredo, J. R., Sulon, J., & Beckers, J.-F. (1997). Pregnancy-Associated Glycoprotein (PAG) profiles during pregnancy and postpartum and progesterone (P4) profiles during pregnancy in native goats from Northeast of Brazil. Arquivos - Faculdade de Veterinária, UFRGS, 25 (1 (Suppl)), 304-305. |
Lucci, C. M., Melo de Sousa, N., & Figueiredo, J. R. (1996). Perfis plasmáticos de PAG (Pregnancy-Associated Glycoprotein) durante a gestação e período pós-parto em cabras Canindé e Moxotó. In Anais do V Encontro de Iniciação Científica da UECE (pp. 118). |
Melo de Sousa, N., Garbayo, J. M., Sulon, J., Brito, F. M., Lucci, C. M., Figueiredo, J. R., & Beckers, J.-F. (1996). Plasmatic profiles of Pregnancy-Associated Glycoprotein (PAG) in european goats with single and multiple gestation [Poster presentation]. XV Panamerican Congress of Veterinary Sciences, Campo Grande, Brazil. |
Melo de Sousa, N., Lucci, C. M., & Figueiredo. (1996). Sensibilidade e precisão da dosagem radioimunológica heteróloga para detecção da PAG (Pregnancy-Associated Glycoprotein) no plasma de cabras nativas da Região Nordeste do Brasil [Poster presentation]. II Encontro de Pesquisadores da UECE, Fortaleza, Brazil. |
Melo de Sousa, N., Garbayo, J. M., Sulon, J., Figueiredo, J. R., Freitas, V. J. F., Lucci, C. M., Brito, F. M., & Beckers, J.-F. (1996). Pregnancy-Associated Glycoprotein (PAG) profiles during gestation and post-partum in Canindé and Moxotó goats [Poster presentation]. XV Panamerican Congress of Veterinary Sciences, Campo Grande, Brazil. |
Melo de Sousa, N., Garbayo, J. M., Sulon, J., Figueiredo, J. R., Freitas, V. J. F., Brito, F. M., Lucci, C. M., & Beckers, J.-F. (1996). Progesterone (P4) levels during gestation in Canindé and Moxotó goats [Poster presentation]. XV Panamerican Congress of Veterinary Sciences, Campo Grande, Brazil. |
Melo de Sousa, N., Lucci, C. M., & Figueiredo, J. R. (1996). Concentrações plasmáticas de PAG (Pregnancy-Associated Glycoprotein) em cabras nativas gestantes e não-gestantes nos dias 24, 30 e 43 pós-inseminação [Poster presentation]. II Encontro de Pesquisadores da UECE, Fortaleza, Brazil. |
Lucci, C., Melo de Sousa, N., & Figueiredo, J. R. (1996). Perfis plasmáticos de progesterona (P4) durante a gestação em cabras Canindé e Moxotó. In Anais do V Encontro de Iniciação Científica da UECE (pp. 119). |
Melo de Sousa, N., & Santa Rosa, J. (1994). Meningoencefalite por Corynebacterium pseudotuberculosis em caprino: Relato de um caso. In Anais do VIII Seminário de Pesquisa Agropecuária do Piauí et I Simpósio Agropecuário e Florestal do Meio-Norte (pp. 1-10). |
Melo de Sousa, N., Teixeira, M. D., Oliveira, L. F., & Nunes, J. F. (1994). Agua de coco (Cocus nucifera, L.) bajo la forma de fraccion activa liofilizada adicionada e no de yema de huevo y gel, como dilutores del semen ovino. In Proceedings of the XIV Panamerican Congress of Veterinary Sciences (pp. 300). |
Melo de Sousa, N., Teixeira, M. D. A., Oliveira, L. F., & Nunes, J. F. (1994). Água de coco sob a forma de fração ativa liofilizada adicionada ou não de gema de ovo e gel como diluidores do sêmen ovino. In Anais do XXIII Congresso Brasileiro de Medicina Veterinária (pp. 583). |
Teixeira, M. D. A., Rodrigues, A. P. R., Melo de Sousa, N., & Nunes, J. F. (1994). Avaliação da taxa de degradação da motilidade do sêmen de ovinos deslanados e caprinos, diluidos em água de coco e suas frações. In Anais do XXIII Congresso Brasileiro de Medicina Veterinária (pp. 576). |
Rodrigues, A. P. R., Melo de Sousa, N., & Sousa, M. Z. G. (1993). Lavantamento da Brucella mellitensis no rebanho caprino leiteiro da Grande Fortaleza. In Anais du II Encontro de Iniciação Científica da UECE (pp. 17). |