References of "Hornick, Jean-Luc"
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See detailUtilization of Rice Distiller’s By-product for Swine Production in Northern Vietnam
Nguyen Cong, Oanh ULiege; Dang, Pham Kim; Luc, Do Duc et al

Poster (2016, October 21)

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See detailEvaluation of chemical composition of 6 available by-products in the North of Morocco
El Otmani, Samira ULiege; Ayadi, Mohamed; Hornick, Jean-Luc ULiege et al

in Book of Abstracts of the 12th International Conference on Goats (2016, September)

In the northern region of Morocco, goat breeding is the dominant activity of farmers. This livestock plays a major economic role in the contribution of more than 70% of household income. His diet is based ... [more ▼]

In the northern region of Morocco, goat breeding is the dominant activity of farmers. This livestock plays a major economic role in the contribution of more than 70% of household income. His diet is based essentially on forest rangelands characterized by a variable feed offer. Therefore, it is necessary to diversify and improve its feed calendar to reduce overgrazing and increase livestock productivity. This work aims to characterize the chemical composition of agricultural by-products to be introduced in the diet of goat herd. The studied by-products was residues of watermelon, melon, zucchini, tomato, sunflower and peanut. These samples were collected in the different places in the region of the north of Morocco. In the laboratory, they were dried in oven at 60°C and subsequently ground and sieved to 1 mm diameter. The studied composition parameters were dry matter, ash, total nitrogen and fat. The chemical composition of these samples was determined by the methods of AOAC (1997). The means and the standard error of means were calculated using SAS software. From results, dry matter of by-products varies from 16.4% in watermelon residues and 96.7% in sunflower residues. The sunflower residues has a low mineral content of 3% while the melon residue contains 26.5% of mineral matter. The nitrogenous matter ranges from 2.6% in sunflower residue to 19.5% in watermelon residues. The highest fat content was recorded in melon residues (5.1%). Sunflower residue is lower in fat (1.4%). In conclusion, sunflower and peanut residues drier than the other by-products and contain less mineral matter, fat and nitrogenous matter. These by-products represent a free feed that can take their place in feed calendar in the northern region of Morocco for the goat population. However, to introduce them in the diet, it is necessary to evaluate their nutritional values. [less ▲]

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See detailEffect of Dietary Energy on Productive and Reproductive Performance of Algerian Local Rabbit Does and Their Litters
Saidj, Dahia; Ainbaziz, H.; Salhi, O. et al

in Animal Nutrition and Feed Technology (2016), 16

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See detailĐánh giá tiềm năng bã rượu làm thức ăn chăn nuôi lợn nông hộ tại ba tỉnh phía Bắc
Nguyen Cong, Oanh ULiege; Pham Kim, Dang; Vu Dinh, Ton et al

in Journal of Science and Development (2016), 14(1), 79-86

In order to evaluate the potential of the rice distiller’s by-product for use as feed, the chemical composition and nutritive value, and its utilisation in pig production, 120 rice alcohol producers were ... [more ▼]

In order to evaluate the potential of the rice distiller’s by-product for use as feed, the chemical composition and nutritive value, and its utilisation in pig production, 120 rice alcohol producers were surveyed and 18 samples of rice distiller’s by-product were collected from 3 traditional alcohol villages belonging to 3 different provinces in the North of Viet Nam (Hai Duong, Hung Yen and Bac Giang). The study results showed that rice distillers’ by product was produced in large quantity and available the whole year round in households surveyed (8.266 kg DM/household/year). The majority of this by-product was used for pig production. The rice distiller’s by-product use in feed ration varied between 11- 40% DM and 11-50% DM for sows and fattening pigs, respectively. For the sows, this by-product used in diet gradually reduced from pregnancy to milking sows. For the fattening pigs, its by-product is used continuously from piglet to finishing stage. Rice distiller’s by-product was high in protein, NDF (% DM) and energy (28.18%, 29.93% and 4.866,67 kcal/kg, respectively) but low in dry matter (DM) (11.04%). The low pH value (3.19) and high lactic acid ratio (2.31 g/100 g sample) might help improve digestive health and prevent intestinal diseases. [less ▲]

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See detailImpact d'un extrait végétal "Origanum majorana" sur les paramètres zootechniques et l'état de santé du poulet de chair
SAHRAOUI, Naima; LARBI, Redouane; LAKHDARI, Mehdi et al

in Revue Marocaine des Sciences Agronomiques et Veterinaires (2016), 4(3),

As part of the search for alternatives to antibiotics, several non-therapeutic alternative methods, including plant extracts are increasingly proposed and studied for increasing performance and control of ... [more ▼]

As part of the search for alternatives to antibiotics, several non-therapeutic alternative methods, including plant extracts are increasingly proposed and studied for increasing performance and control of coccidiosis in broiler chikens. The objective of this study was to evaluate the effectiveness of a supplementation with a natural plant extract of Origanum majorana to improve animal performance and control broiler coccidiosis. During 54 days, one experimental group A (1200 chicks) receiving water supplemented with an anticoccidial based plant extract (Orego-STEM, 150 ml to 1000 L) was compared with a control group C (1200 chicks) receiving in drinking water a chemical anticoccidial and a batch B (1200 chicks) receiving in drinking water both anticoccidials alternatives. The results for the animal performances have shown a weight difference in favor of Lot A (batch: 3182 g A, Lot B: 2610 g, lot C: 3050) at the end of the rearing period. Feed intake was similar at the 35th day. Thereafter, lot A showed a significant difference when compared to batch B and C. The cumulative mortality rate recorded at the end of rearing period was similar (5-6%) in three batches. The lesion scores in subjects of lot B at autopsy showed more important clues as those of Lot A and C indicative of clinical and subclinical forms of coccidiosis. Finally, under experimental conditions the addition of Origanum majorana extract in drinking water improved growth performance of broilers. Nevertheless, the impact of supplementation require further studies to confirm or refute their effectiveness in controlling coccidiosis. [less ▲]

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See detailTHE USE OF BELGIAN BREEDS IN THE IMPROVEMENT OF ANIMAL PRODUCTION IN THE TROPICS
Leroy, Pascal ULiege; Hornick, Jean-Luc ULiege; Farnir, Frédéric ULiege et al

in Proceedings International Conference on Animal production in Southeast Asia: Current status and Future (2016)

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See detailCaractéristiques de l’élevage du porc local d’Afrique
Agbokounou, Aristide Mahoutin; Ahounou, Gb Enangnon Serge; Youssao, A. K. I. et al

in Journal of Animal and Plant Sciences (2016), 30(1), 4701--4713

Livestock characteristics of the Africa’s local pig The African native pig (Sus Scrofa domesticus) is raised mostly by poor farmers in a traditional and family livestock system. The aim of this review is ... [more ▼]

Livestock characteristics of the Africa’s local pig The African native pig (Sus Scrofa domesticus) is raised mostly by poor farmers in a traditional and family livestock system. The aim of this review is to describe this system in order to propose appropriate improvements to the socioeconomic conditions of these farmers and allow the conservation of this breed. For this purpose, this livestock system has been described through the mode of animals management , the characteristics of its habitat, feeding practices, breeding practices and health practices [less ▲]

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See detailImpact of natural vegetation on some biochemical parameters of the Arabian camel (Camelus dromedarius) in Algeria.
Sahraoui, Naima; Doudou, Aissa; Douadji, Oussama et al

in Journal of Camelid Science (2016), 9

In Algeria the Arabian camel (Camelus dromedarius) has always been an integral part of the socioeconomic landscape in the Southern part of Algeria, both desert and steppe. Despite the economic and social ... [more ▼]

In Algeria the Arabian camel (Camelus dromedarius) has always been an integral part of the socioeconomic landscape in the Southern part of Algeria, both desert and steppe. Despite the economic and social importance, little information is available on the blood biochemistry. In order to better understand the biology of the camel and the effects of breed, sex and age on the main biochemical blood parameters, our study was carried out on 22 camels (16 males and 6 females) fed a grass diet. Camels were divided into two age groups, young (1-4 years) and Adult (5 -8 years) and belonged to two breeds Sahraoui and Tergui. The results showed an average serum glucose value of 5 ± 2.11 mmol/L, average values for urea and creatinine were of 2.56±0.72 mmol/L and 130.9 μmol/L, respectively and values of lipids were represented by total cholesterol (1mmol/L), triglycerides (1 mmol/L), HDL (0.0 mmol/L) and LDL cholesterol (0.06±0.09mmol/L). Blood biochemical parameters were influenced by age, sex and breed. HDL was higher (P<0.05) for the Sahraoui breed than Tergui breed (0.06±0.06 vs 0 ± 0.04 mmol/L). The LDL values were higher (P<0.05) in young camels (0.11 ±0.11vs 0.006± 0.06g mmol/L). These values are to be considered by the clinician for the early detection of metabolism and nutrition disorders in camels. [less ▲]

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See detailEthnologie et potentialités du porc local d’Afrique
Agbokounou, Aristide Mahoutin; Ahounou, Gb Enangnon Serge; Karim, Issakayoussaoabdou et al

in Journal of Animal and Plant Sciences (2016), 29(3), 4665--4677

Ethnology and potentialities of local African pig In most parts of Africa, local pigs are raised mostly by poor farmers. This breed has some potential to adapt to difficult conditions of its breeding ... [more ▼]

Ethnology and potentialities of local African pig In most parts of Africa, local pigs are raised mostly by poor farmers. This breed has some potential to adapt to difficult conditions of its breeding. This review describes the characteristics of the local African pig and its potential in its breeding environment. To begin with, the origin and ethnological characteristics of this breed were described. Then, zootechnical potential expressed by this race in its breeding system, physiological and genetic potential exploitable to improve its performance have been explored. [less ▲]

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See detailThe “FMV small animal husbandry unit” for students and research
Moula, Nassim ULiege; Dawans, Edwin ULiege; Cabaraux, Jean-François ULiege et al

in Zeippen, Caroline; Bayrou, Calixte; Cabaraux, Jean-François (Eds.) et al Proceedings of the 3rd FARAH-Day (2016)

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See detailEffect of the method and the period of oil extraction on chemical composition of olive cake in northern of Morocco
El Otmani, Samira ULiege; Ayadi, Mohamed; Chentouf, Mouad et al

in Bayrou, Calixte; Cabaraux, Jean-François; Delguste, Catherine (Eds.) et al Proceedings of the 3rd FARAH Day (2016)

In the northern of Morocco, goat population is the most dominant. His diet is based on forest rangelands. Therefore, it is necessary to diversify and improve its feed calendar. Olive cake is by-product of ... [more ▼]

In the northern of Morocco, goat population is the most dominant. His diet is based on forest rangelands. Therefore, it is necessary to diversify and improve its feed calendar. Olive cake is by-product of oil extraction that widely available in the region with important production. It can be a feed resource of ruminant. This resource is produced by three methods and for limited period. This work aims to determine the effect of different oil extraction method and period on the chemical composition of olive cake in northern of Morocco. Twenty-seven samples of olive cake were collected from 3 mills by each extraction method (mechanical pressure, centrifugation 2 and 3 phases) during three periods (November, December and January). The chemical composition (dry matter, fat, mineral matter, crude protein and fibers) of the collected samples was determined by AOAC methods (1997). The extraction method had a significant effect on all parameters of the chemical composition with the exception of the fat and crude protein (P<0.05). The olive cake obtained by centrifugation 2 phases method had lower dry matter and fibers. The period had no effect on chemical composition, which eases the introduction of olive cake in the diet of ruminants. The olive cake of 2 phases is the most suitable for feed but has a reduced shelf life, which requires the development of a suitable conservation mode. [less ▲]

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See detailBiomass production and use of silvopastoral areas in northern Morocco
Chebli, Youssef ULiege; Chentouf, M.; Hornick, Jean-Luc ULiege et al

in Proceedings of the 12th International Conference on Goats (2016) (2016)

In Rif Mountain of Morocco, sylvopastoral systems satisfy the diverse needs of local population and represent the most important feed sources for goats. This system is under pressure due to climate change ... [more ▼]

In Rif Mountain of Morocco, sylvopastoral systems satisfy the diverse needs of local population and represent the most important feed sources for goats. This system is under pressure due to climate change and overgrazing. For a sustainable and integrated development of this area, it is essential to establish a resource assessment. This study aims to evaluate the pastoral production (biomass) and investigate the use of pasture in Rif Mountain (Loubar) exclusively used by goat herds. For biomass production, we used the method of the reference module. The surveys, on using pasture by breeders, were realized during the biomass evaluation period. The pastoral shrubs, mainly Cistus crispus, Cistus monspeliensis, Lavendula stoeches and Pistacia lentiscus, represent the most palatable species selected by goats. Breeders use pasture throughout the year, except on rainy days where they resort to limbing. The pasture was characterized by a poor floristic diversity (65 species) dominated by shrubs. The biomass produced was estimated at 373 kg dry matter per hectare composed for 63% by shrubs. For biomass production, significant differences were observed depending on the season and according to sampling sites. The continuous use of the same pasture for a long time can explain the low production estimated and appearance of unpalatable species, such as Arisarum vulgare, Daphne gnidium and Ranunculus sardous. In fact, due to the bad operating practices of pastoral resources, sylvopastoral areas will be less available and of lower quality. The reasonable use of these resources, including a reduction in grazing pressure, should be developed to ensure a better productivity and sustainability. [less ▲]

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See detailThe assessment of grazing intensity in northern Morocco, using new techniques
Chebli, Youssef ULiege; Chentouf, M.; Hornick, Jean-Luc ULiege et al

Conference (2016)

In Rif Mountain of Morocco, forest rangelands provide goods and services, which satisfy the diverse needs of local population. These silvopastoral areas represent the most important feed sources for goats ... [more ▼]

In Rif Mountain of Morocco, forest rangelands provide goods and services, which satisfy the diverse needs of local population. These silvopastoral areas represent the most important feed sources for goats. Goats are exclusively conducted in extensive farming systems in which most nutrients from forest pastures. Grazing is associated with daily activities significantly different from those of animals in confinement, such as grazing behavior and distance. The assessment of grazing intensity is important for making adequate management decisions on rangelands. Currently, new techniques have been proposed to characterize the feeding behavior of goats on rangelands and throughout the day. These measures are now determined mainly by GPS collars and IceTag, which are used to monitor activity, location and movement of goat in grazing areas. The aim was to characterise their spatio-temporal movement and activities depending on the season (spring and summer), i.e. the variation in grazing intensities, daily trajectories of the herds, the number of steps, time spent standing and lying. This study was conducted in a forest rangeland (Derdara) in western of Rif Mountain. 8 Goats were fitted by GPS collars (attached around the animal’s necks) and IceTags (attached to a rear leg of goat) during three days. Grazing area was estimated to 151 ha with a perimeter of 10 km. Grazing time and covered distance were estimated to 9 vs 12 hours and 6.9 vs 9.2 km per day, respectively in spring and summer. The short duration of grazing during spring compare to summer can be explained by the high forage supply, coinciding with the vegetative peak of pastoral species. In summer, goats are exhausted due to high temperature which limits their movement in altitude. In spring, 62.4% of animal activity is devoted to grazing, against 68.7% in summer. During dry season (summer) goats move more compared to the spring (6600 vs 4400 steps per day, respectively in summer and spring), which was confirmed by GPS collars results. The study also revealed that the goats consumed mainly of palatable vegetation at ground level. Pasture area, itinerary and covered distance of goats varies depending on the season. The intersection of several parameters of pastoral assessment with the study of feeding behavior of goats on rangelands by using new techniques, could be useful in future to a better management of herd in time and space. [less ▲]

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See detailBiomass production and use of silvopastoral areas in northern Morocco: A case study of western Rif
Chebli, Youssef ULiege; Chentouf, M.; Hornick, Jean-Luc ULiege et al

in Proceedings of the 3nd FARAH Day, Faculty of Veterinary Medicine (2016) (2016)

In northern Morocco, silvopastoral areas provide diverse needs for local population and livestock. These pasture represent the most important feed sources for goats in Rif Mountain. This study aims to ... [more ▼]

In northern Morocco, silvopastoral areas provide diverse needs for local population and livestock. These pasture represent the most important feed sources for goats in Rif Mountain. This study aims to evaluate biomass production and investigate the use of a silvopastoral area in two representative pastoral areas (Derdara and Loubare) exclusively used by goatherds. For biomass production, we used the method of the reference module. The surveys, on using pasture by breeders, were realized during the biomass evaluation period. The pastoral shrubs, mainly Arbustus unedo, Cistus crispus, Cistus monspeliensis, Erica arborea, Lavendula stoeches and Mentha pulegium, are the main diet of goats. Breeders use pasture throughout the year, except on rainy days where they resort to limbing. The pasture was characterized by an average level of diversity of pastoral flora in Derdara (94 species) and poor floristic diversity in Loubare (65 species) dominated by shrubs . The phytomass productions at Derdara and Loubare were estimated at respectively 1867 kg and 373 kg for dry matter per hectare. The continuous use of pastoral resources and lack of pasture management has considerably reduced the palatable pasture species and has allowed the appearance of low pastoral value species. Statistically significant differences were observed depending on season, with a maximum in the spring and a minimum in the winter, and according to sampling sites are differentiating by intensity of canopy cover. Management actions and use of silvopastoral resources, including a reduction in grazing pressure, should be developed to ensure better productivity and sustainability of these resources. [less ▲]

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See detailUse of new technology to estimate the grazing behavior of goats in northern morocco
Chebli, Youssef ULiege; Chentouf, M.; Cabaraux, Jean-François ULiege et al

in Proceedings of the 3nd FARAH Day, Faculty of Veterinary Medicine (2016) (2016)

In northern Morocco, goats are exclusively or partially conducted in extensive farming systems in which most nutrients from forest pastures. Grazing is associated with daily activities significantly ... [more ▼]

In northern Morocco, goats are exclusively or partially conducted in extensive farming systems in which most nutrients from forest pastures. Grazing is associated with daily activities significantly different from those of animals in confinement, such as grazing behavior and distance. Currently, new techniques have been proposed to characterize the feeding behavior of goats on rangelands and throughout the day. These measures are now determined mainly by GPS collars and IceTag, which are used to monitor activity,location and movement in grazing areas. This study was conducted in two representative pastures (Derdara and Loubare) in western Rif. The study concerned the characterization of movement of goats on a silvopastoral pasture through using new technology. GPS collars have allowed us to estimate a distance travelled at 8 km for 10 hours of grazing per day. With IceTag (attached to a rear leg of goat), we estimated the number of steps and time spent standing, lying , and active. IceTags and GPS collars data was used simultaneously to estimate times spent grazing/eating, as well as other behaviors. The study also revealed that the goats consumed mainly of palatable vegetation at ground level. The intersection of several parameters of pastoral assessment with the study of feeding behavior of goats on rangelands will allow us in future to manage better the herd in time and space. [less ▲]

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See detailBiomass production and use of silvopastoral areas in the Rif Mountains of Morocco
Chebli, Youssef ULiege; Chentouf, Mouad; Hornick, Jean-Luc ULiege et al

in Casasus, I.; Lombardi, G. (Eds.) Mountain pastures and livestock farming facing uncertainty: environmental, technical and socio-economic challenges (2016)

In Northern Morocco, the forest rangelands provide goods and services, which satisfy the diverse needs of local population. These silvopastoral areas represent the most important feed sources for goats in ... [more ▼]

In Northern Morocco, the forest rangelands provide goods and services, which satisfy the diverse needs of local population. These silvopastoral areas represent the most important feed sources for goats in the Rif Mountain. This study aims to evaluate the biomass production and investigate the use of a silvopastoral area (Derdara) exclusively used by goatherds. For biomass production, we used the method of the reference module. A survey on using pasture by breeders was realized during the biomass evaluation period. The pastoral shrubs, mainly Arbutus unedo, Cistus crispus, Cistus monspeliensis, Erica arborea, Lavandula stoeches and Mentha pulegium, represent the fundamental diet for goats. Breeders use pasture throughout the year, except on rainy days where they resort to limbing. The pasture was characterized by a diversity average level of pastoral flora (94 species) dominated by shrubs. The biomass produced was estimated at 1867 kg dry matter per hectare composed for 74% by shrubs. Significant differences were observed concerning the intensity of the canopy cover, depending on the season and according to sampling sites. The continuous use of the same pasture for a long time, can explain the appearance of low pastoral value species in the study area, such as Arisarum vulgare, Daphne gnidium and Ranunculus sardous. The reasonable use of silvopastoral resources, including a reduction in grazing pressure, should be developed to ensure better productivity and sustainability of these resources. [less ▲]

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See detailEffect of cow colostrum on the performance and survival rate of local newborn piglets in Benin Republic
Agbokounou, Mahoutin Aristide; Ahounou, Serge Gbenangnon; Youssao, Issaka Abdou Karim et al

in Tropical Animal Health and Production (2016)

The effect of bovine colostrum, including its thermally labile compounds, on the survival and growth performance of local breed piglets reared by their mother, in Benin, was evaluated over a 49-day trial ... [more ▼]

The effect of bovine colostrum, including its thermally labile compounds, on the survival and growth performance of local breed piglets reared by their mother, in Benin, was evaluated over a 49-day trial. Three groups of 16 piglets, stemming from two primiparous sows belonging to a unique traditional farm, were respectively fed for the first 48 h of life with either bovine colostrum heated to 85 °C for 30 min, or thawed bovine colostrum, or colostrum from the mother. Thereafter, the animals that received bovine colostrum turned back to their mother. At day 21, almost all piglets from the group that received heated colostrum died. The highest total weight gain was obtained in the group that received thawed bovine colostrum (P ˂ 0.01), followed by the group left with the mother. Corresponding average daily gains (ADGs) were 56, 34 and 2 g/day, respectively (P ˂ 0.05). At the end of the trial, the treatment effect was highly significant on the survival of piglets (100% in the thawed colostrum group vs. 00 and 50%, respectively, in the heated colostrum group and in the group left with the mother). At day 49, numerically higher weight and ADGs were obtained in the group that received thawed cow colostrum. Thawed bovine colostrum improved the growth performance and piglet survival in the local pig breed in Benin, probably owing to thermally labile components. Bovine colostrum may be used in our farms in order to reduce pre-weaning mortality, improve the profitability of livestock farmers, and ensure survival of traditional farms. The use of bovine colostrum on farms could be facilitated by collaboration between pig farmers and bovine farmers. It could also be facilitated by the creation of a colostrum bank. [less ▲]

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See detailMilk production, milking frequency and rumination time of grazing dairy cows milked by a mobile milking robot.
Lessire, Françoise ULiege; Hornick, Jean-Luc ULiege; Minet, Julien ULiege et al

in Conington, J; Klopcic, M; Lauridsen, C (Eds.) et al Book of abstracts of the 66th Annual meeting of the European Federation of animal science (2015, September 28)

In Europe, analysis of meteorological data shows that the average temperature has increased by ~1°C over the past hundred years (IPCC, 2013). Heat stress periods are thus expected to be more frequent even ... [more ▼]

In Europe, analysis of meteorological data shows that the average temperature has increased by ~1°C over the past hundred years (IPCC, 2013). Heat stress periods are thus expected to be more frequent even in temperate areas. The use of an automatic milking system (AMS) implies the need to stimulate cows’ traffic to the robot, especially with grazing cows. Describing how heat stress influenced cows’ traffic to the robot is the aim of this study. Grazing dairy cows milked by an automatic system (AMS) experienced heat stress (HS) periods, twice during the summer 2013 in July (J) and August (A). The daily temperature humidity index (THI) during these periods were higher than 75. Each HS period was compared with a “normal period”(N), presenting the same number of cows, similar lactation number, days in milk, distance to come back to the robot and an equal access to water. The first HS period of 5 days with a mean THI of 78.4 was chosen in J, and a second that lasted for 6 days in A with a THI value of 77.3. Heat stress periods were cut off with the same duration of days with no stress (N) and mean THI <70. Milk production, milkings and refusals to the robot during HS were compared with N periods. Milkings and refusals were significantly more numerous in HS periods in July (HS: 2.54 ± 0.11 vs N: 2.19 ± 0.08, 1.87 ± 0.20 vs 0.72 ± 0.16) but milk production dropped from 21.8 ±0.6 kg per cow and per day during N periods to 18.9 ± 0.8 kg in HS. In August, MY increased slightly during HS. This could be explained by less high ambient temperatures and decreased distance to walk inducing less energy expenditure. The increase in milkings and refusals to the robot during HS could be linked to water availability nearby the robot and confirmed previous findings (Lessire et al., 2014). [less ▲]

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See detailDigestibility of solvent-treated Jatropha curcas kernel by broiler chickens in Senegal
Nesseim, Thierry Daniel Tamsir; Dieng, Abdoulaye; Mergeai, Guy ULiege et al

in Tropical Animal Health and Production (2015)

Jatropha curcas is a drought-resistant shrub belonging to the Euphorbiaceae family. The kernel contains approximately 60 % lipid in dry matter, and the meal obtained after oil extraction could be an ... [more ▼]

Jatropha curcas is a drought-resistant shrub belonging to the Euphorbiaceae family. The kernel contains approximately 60 % lipid in dry matter, and the meal obtained after oil extraction could be an exceptional source of protein for family poultry farming, in the absence of curcin and, especially, some diterpene derivatives phorbol esters that are partially lipophilic. The nutrient digestibility of J. curcas kernel meal (JKM), obtained after partial physicochemical deoiling was thus evaluated in broiler chickens. Twenty broiler chickens, 6 weeks old, were maintained in individual metabolic cages and divided into four groups of five animals, according to a 4 × 4 Latin square design where deoiled JKM was incorporated into grinded corn at 0, 4, 8, and 12 % levels (diets 0, 4, 8, and 12 J), allowing measurement of nutrient digestibility by the differential method. The dry matter (DM) and organic matter (OM) digestibility of diets was affected to a low extent by JKM (85 and 86 % in 0 J and 81 % in 12 J, respectively) in such a way that DM and OM digestibility of JKM was estimated to be close to 50 %. The ether extract (EE) digestibility of JKM remained high, at about 90 %, while crude protein (CP) and crude fiber (CF) digestibility were largely impacted by JKM, with values closed to 40 % at the highest levels of incorporation. J. curcas kernel presents various nutrient digestibilities but has adverse effects on CP and CF digestibility of the diet. The effects of an additional heat or biological treatment on JKM remain to be assessed. [less ▲]

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See detailIs it possible for large herds to graze while keeping a high milk yield level? The experience of two Belgian dairy farms.
Lessire, Françoise ULiege; Hornick, Jean-Luc ULiege; Dufrasne, Isabelle ULiege

in van den Pol-van Dasselaer, Agnes; Aarts, H.F.M; De Vliegher, Alex (Eds.) et al Grassland and forages in high output dairy farming systems (2015, June 15)

Grazing is more and more abandoned because of increasing size of herds and automation of herd management (e.g. automatic milking system – AMS). In this context, this study aims to evaluate milk production ... [more ▼]

Grazing is more and more abandoned because of increasing size of herds and automation of herd management (e.g. automatic milking system – AMS). In this context, this study aims to evaluate milk production and composition of 2 large Belgian dairy herds equipped with AMS during winter and summer. These herds were followed over 2 years. At grazing, 30% of the offered feed was grass. Milk production in both herds was similar in summer and winter (30.2 ± 7.14 vs 29.7 ± 7.8 ± in Herd 1 and 26.9 ± 0.8 vs 26.4 ± 0.8 in Herd 2) while their milk composition differed. In conclusion, it is possible for grazing to be preserved even in large herds without impacting noticeably on the herd performance. [less ▲]

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