Full Text

• BAXTER, R. C. & MARTIN, J. L. 1989 Binding proteins for insulin-like growth factors: structure, regulation and function. Progress in Growth Factor Research 1 49-68
• BERTICS, S. J., GRUMMER, R. R., CADORNIGA-VALINO, C. & STODDARD, E. E. 1992 Effect of prepartum dry matter intake on liver triglyceride concentration and early lactation. Journal of Dairy Science 75 1914-1922
• BREIER, B. H., GLUCKMAN, P. D. & BASS, J. J. 1988 The somatotrophic axis in young steers: influence of nutritional status and oestradiol-17β on hepatic high- and low-affinity somatotrophic binding sites. Journal of Endocrinology 116 169-177
• BUTLER, W. R. & SMITH, R. D. 1989 Interrelationships between energy balance and postpartum reproductive function in dairy cattle. Journal of Dairy Science 72 767-783
• CARROLL, D. J., GRUMMER, R. R. & MAO, F. C. 1992 Progesterone production by cultured luteal cells in the presence of bovine low- and high-density lipoproteins purified by heparin affinity chromatography. Journal of Animal Science 70 2516-2526
• CHIESA, F., GAIANI, R., FORMIGONI, A. & ACCORSI, P. A. 1991 Hormone and metabolic variations in high-yielding dairy cows during dry period and lactation. Archivio Veterinaria Italiana 42 157-169
• CHILLIARD, Y. 1993 [Metabolic adaptation and partition of nutrients in the lactating animal.] In Biologie de la Lactation, pp. 431-475. Paris: INRA
• COHICK, W. S., MCGUIRE, M. A., CLEMMONS, D. R. & BATMAN, D. E. 1992 Regulation of insulin-like growth factor-binding proteins in serum and lymph of lactating cows by somatotropin. Endocrinology 130 1508-1514
• EDMONSON, A. J., LEAN, I. J., WEAVER, L. D., FARVER, T. & WEBSTER, G. 1989 A body condition scoring chart for Holstein dairy cows. Journal of Dairy Science 72 68-78
• EMERY, R. S., BURG, N., BROWN, L. D. & BLANK, G. N. 1964 Detection, occurrence, and prophylactic treatment of borderline ketosis with propylene glycol feeding. Journal of Dairy Science 47 1074-1079
• FRONK, T. J., SCHULTZ, L. H. & HARDIE, A. R. 1980 Effect of dry period overconditioning on subsequent metabolic disorders and performance of dairy cows. Journal of Dairy Science 63 1080-1091
• GOERING, H. K. & VAN SOEST, P. J. 1970 Forage Fiber Analysis. Bethesda, MD: Agricultural Research Service (USDA Agriculture Handbook no. 379)
• GRÖHN, Y., LINDBERG, L.-A., BRUSS, M. L. & FARVER, T. B. 1983 Fatty infiltration of liver in spontaneously ketotic dairy cows. Journal of Dairy Science 66 2320-2328
• GRUMMER, R. R. 1993 Etiology of lipid-related metabolic disorders in periparturient dairy cows. Journal of Dairy Science 76 3882-3896
• HARRISON, L. M. & RANDEL, R. D. 1986 Influence of insulin and energy intake on ovulation rate, luteinizing hormone and progesterone in beef heifers. Journal of Animal Science 63 1228-1235
• HINTZ, R. L. 1987 Somatomedin C/insulin-like growth factor I receptors on human mononuclear cells and the IM-9 lymphoid cell line. Methods in Enzymology 146 234-239
• INGALLS, W. G., CONVEY, E. M. & HAFS, H. D. 1973 Bovine serum LH, GH, and prolactin during late pregnancy, parturition and early lactation. Proceedings of the Society for Experimental Biology and Medicine 143 161-164
• LEMAL, D., RENAVILLE, R., CLAES, V., RUELLE, L., FABRY, J., BURNY, A., UNDERWOOD, L. E. & KETELSLEGERS, J.-M. 1989 Effect of pituitary somatotropin injections on plasma insulin-like growth factor-I and somatotropin profiles in growing heifers. Journal of Animal Science 67 2715-2723
• LUCY, M. C., BECK, J., STAPLES, C. R., HEAD, H. H., DE LA SOTA, R. L. & THATCHER, W. W. 1992 Follicular dynamics, plasma metabolites, hormones and insulin-like growth factor I (IGF-I) in lactating cows with positive or negative energy balance during the preovulatory period. Reproduction, Nutrition, Development 32 331-342
• MCGUIRE, M. A., BAUMAN, D. E., MILLER, M. A. & HARTNELL, G. F. 1992 Response of somatomedins (IGF-I and IGF-II) in lactating cows to variations in dietary energy and protein and treatment with recombinant n-methionyl bovine somatotropin. Journal of Nutrition 122 128-136
• MARTILLOTTI, F., ANTONGIOVANNI, M., RIZZI, L., SANTI, E. & BITTANTE, G. 1987 [Methods of analysis for the estimation of the nutritive value of livestock feeds.] Roma: IPRA, CNR (Quaderni metodologici no. 8)
• MERRILL, W. G. & GALTON, A. M. 1985 Winter dairy management school. (Cornell University Monographs no. 84, p. 84)
• OLTNER, R. & WIKTORSSON, H. 1983 Urea concentrations in milk and blood as influenced by feeding varying amounts of protein and energy to dairy cows. Livestock Production Science 10 457-467
• PRANDI, A., COMIN, A., GABAI, G., ROSSI, C. & BONO, G. 1992 [Plasma variations of sonic hormones and nutrients associated with energy metabolism in high yielding Italian Simmental Cows.] Archivia Veterinaria Italiana 43 213-221
• PRANDI, A., MOTTA, M., TONDOLO, A. & ROSSI, C. 1994 Evaluation of the reproductive efficiency of Simmental and Friesian dairy cows farmed in Friuli (Northeast Italy) by the analysis of progesterone levels. Theriogenology 42 65-78
• REID, I. M., ROWLANDS, G. J., DEW, A. M., COLLINS, R. A., ROBERTS, C. J. & MANSTON, R. 1983 The relationship between post-parturient fatty liver and blood composition in dairy cows. Journal of Agricultural Science 101 473-481
• RÉMESY, C., CHILLIARD, Y., RAYSSIGUIER, Y., MAZUR A. & DEMIGNÉ, C. 1986 [Hepatic metabolism of carbohydrates and lipids in ruminants: principal interactions in pregnancy and lactation.] Reproduction, Nutrition, Développement 26 205-226
• RENAVILLE, R., DEVOLDER, A., MASSART, S., SNEYERS, M., BURNY, A. & PORTETELLE, D. 1993 Changes in the hypophyseal-gonadal axis during the onset of puberty in young bulls. Journal of Reproduction and Fertility 99 443-449
• RONGE, H., BLUM, J., CLEMENT, C., JANS, F., LEUENBERGER, H. & BINDER, H. 1988 Somatomedin C in dairy cows related to energy and protein supply and to milk production. Animal Production 47 165 183
• ROPSTAD, E., VIK-MO, L. & REFSDAL, A. O. 1989 Levels of milk urea, plasma constituents and rumen liquid ammonia in relation to the feeding of dairy cows during early lactation. Acta Veterinaria Scandinavia 30 199-208
• SAS 1991 User's Guide: Statistics, v. 6. Cary, NC: SAS Institute
• SAUER, F. D., ERFLE, J. D. & FISHER, L. J. 1973 Propylene glycol and glycerol as a feed additive for lactating dairy cows: an evaluation of blood metabolite parameters. Canadian Journal of Animal Science 53 265-271
• SHARMA, B. K., VANDEHAAR, M. J. & AMES N. K. 1994 Expression of insulin-like growth factor-I in cows at different stages of lactation and in late lactation cows treated with somatotropin. Journal of Dairy Science 77 2232-2241
• SHORT, R. E., BELLOWS, R. A., STAIGMILLER, R. B., BERARDINELLI, J. G. & CUSTER, E. E. 1990 Physiological mechanisms controlling anestrus and infertility in postpartum beef cattle. Journal of Animal Science 68 799-816
• SIMMONS, C. R., BERGEN, W. G., VANDEHAAR, M. J., SPRECHER, D. J., SNIFFEN, C. J., STANISIEWSKI, E. P. & TUCKER, H. A. 1994 Protein and fat metabolism in cows given Somavubove before parturition. Journal of Dairy Science 77 1835-1847
• SKAAR, T. C., GRUMMER, R. R., DENTINE, M. R. & STAUFFACHER, R., H. 1989 Seasonal effects of prepartum and postpartum fat and niacin feeding on lactation performance and lipid metabolism. Journal of Dairy Science 72 2028-2038
• SPICER, L. J., ALPIZAR, E. & ECHTERNKAMP, S. E. 1993 Effects of insulin, insulin like growth factor I, and gonadotropins on bovine granulosa cell proliferation, progesterone production, estradiol production, and(or) insulin-like growth factor I production in vitro. Journal of Animal Science 71 1232-1241
• SPICER, L. J. & ENRICHT, W. J. 1991 Concentrations of insulin-like growth factor 1 and steroids in follicular fluid of preovulatory bovine ovarian follicles. Effect of daily injections of a growth hormone-releasing factor analog and(or) thyrotropin-releasing hormone. Journal of Animal Science 69 1133-1139
• SPICER, L. J., TUCKER, W. B. & ADAMS, G. D. 1990 Insulin-like growth factor-I in dairy cows: relationships among energy balance, body condition, ovarian activity, and estrous behaviour. Journal of Dairy Science 73 929-937
• STUDER, V. A., GRUMMER, R. R., BERTICS, S. J. & REYNOLDS, C. K. 1993 Effect of prepartum propylene glycol administration on periparturient fatty liver in dairy cows. Journal of Dairy Science 76 2931-2939
• VAZQUEZ AÑON, M., BERTICS, S., LUCK, M., GRUMMER, R. R. & PINHEIRO, J. 1994 Peripartum liver triglyceride and plasma metabolites in dairy cows. Journal of Dairy Science 77 1521-1528
• VEENHUIZEN, J. J., DRACKLEY, J. K., RICHARD, M. J., SANDERSON, T. P., MILLER, L. D. & YOUNG, J. W. 1991 Metabolic changes in blood and liver during development and early treatment of experimental fatty liver and ketosis in cows. Journal of Dairy Science 74 4238-4253
• VEGA, J. R., GIBSON, C. A., SKAAR, T. C., HADSELL, D. L. & BAUMRUCKER, C. R. 1991 Insulin-like growth factor (IGF)-I and (IGF)-II and IGF binding proteins in serum and mammary secretions during the dry period and early lactation in dairy cows. Journal of Animal Science 69 2538-2547
• VICINI, J. L., BUONOMO, F. C., VEENHUIZEN, J. J., MILLER, M. A., CLEMMONS, D. R. & COLLIER, R. J. 1991 Nutrient balance and stage of lactation affect responses of insulin, insulin-like growth factor-I and -II and insulin-like growth factor-binding protein-2 to somatotropin administration in dairy cows. Journal of Nutrition 121 1656-1664
• WELLER, J. I., SARAN, A. & ZELIGER, Y. 1992 Genetic and environmental relationships among somatic cell count, bacterial infection, and clinical mastitis. Journal of Dairy Science 75 2532-2540
• ZAPF, J., HAURI, C., WALDVOGEL, M., FUTO, E., HÄSLER, H., BINZ, K., GULER, H. P., SCHMID, C. & FROESCH, E. R. 1989 Recombinant human insulin-like growth factor I induces its own specific carrier protein in hypophysectomized and diabetic rats. Proceedings of the National Academy of Sciences, USA 86 3813-3817