260. Boyd, H., ReedH.C. Investigations into the incidence and causes of infertility in dairy cattle — fertility variations. // Brit. vet. J. - 1961. - №117. - P. 18-35.
261. Bulman, D.C, Wood P. D. P. Abnormal patterns of ovarian activity in dairy cows and their relationships with reproductive performance // Anim. Prod. - 1980. - № 30. - P. 177-188.
262. Burnside, E.B. Canadian dairy cows disposals. 1. Differences between in lactation numbers and season / E.B. Burnside ei al // Canadian Journal of Animal Science. - 1971. - № 51. - P. 71-84.
263. Car, M. Utjecaj visokih doza beta karotena pohranjenih u vrtnoj mrkvi na proizvodnjy i reproduktivnu efikasnost visoko proizvodnih mlijeunih krava // Poljoprivr. znan. Smotra. Zagreb. - 1985. - № 69. - P. 235-245.
264. Casida, G. Fertilization failure and embryonic death in domestique animals // J. Anim. Sci. - 1953. - Vol. 27. - P. 511-514.
265. Chupin, D. Maitrise de la reproduction chez us bovins. Principes — resultuts — limites // Ann. Med. Vet. - 1977. - № 5. - P. 329-338.
266. Cseh, S. Allatorvosi szaporodas biologia es szuleszet // Mezogardasagi. Kiado. - 1973. - 792 p.
267. Dachir, S., Blake R. W., Harms P. G. Ovarian activity of Holstein and Jersey cows of diverse transmitting abilities for milk // J. Dairy Sci. - 1984. - №67. - P. 1776-1782.
268. Digging, R.V. Daity Production / R.V. Digging. - 1984. 5 ed. - P. 51-66.
269. Drew, B. Controlled breeding in dairy herd management // Br. Friesian J. March. - 1981. - P. 138-139.
270. Dugmore, T.J. Lesch S.F., Walsh K.P. The effect of magnesium oxide supplementation on the fertility of dairy cows grazing fertilized pastures // S. Afr. J. Anim. Sci. - 1987. - Vol. 17. № 4. - P .183-185.
271. Eicker, S.W., Crohn Y.T., HertlJ. A. The association between cumulative milk yield, days open and days to first breeding in New York Holstein cows // J. Dairy Sci. - 1996. - Vol. 79. - № 2. - P. 235-241.
272. Eldon, J., Olafsson T. The postpartum reproductive status of dairy cows in two areas in Iceland // Acta vet. Scand. - 1986. - № 27. - P. 421-439.
273. Erb, H.N., Smith R.D., Oltenacu P.A., Guard C.L., Hillman R.B., Powers P.A., Smith M.C., White M.E. Path model of reproductive disorders and performance, milk fever, mastitis, milk yield, and culling in Holstein cows // J. Dairy Sci. - 1985. - Vol. 68. - P. 3337-3349.
274. Erb, R.E., Caverish H.A. Profile of reproductive hormones associated with fertile and nonfertile inseminations of dairy cattle // Theriogenology. - 1983. - Vol. 5. - P. 227-242.
275. Etherington, W.G., Martin S.W., Dohoo I.R., Bosu W.T.K. Interrelationships between ambient temperature, age at calving, postpartum reproductive events and reproductive performance in dairy cows: a path analysis // Can. J. CoTp. Med. - 1985. - № 49. - P. 254-260.
276. Etherington, W.G., Martin S.W., Dohoo I.R., Bosu W.T.K. Interrelationships between postpartum events, hormonal therapy, reproductive abnormalities and reproductive performance in dairy cows: a path analysis // Coip. Med. - 1985. - № 49. P. - 261-267.
277. Everett, R.W., Bean B. Semen fertility — an evaluation system for artificial insemination sires, technicians, herds and systematic fixed effects // J. Dairy Sci. - 1986. - Vol. 69. - P. 16301641.
278. Fonseca, F.A., BrittJ. H., McDaniel B.r., Wilk J.C, Rakes A.H. Reproductive traits of Holsteins and Jerseys. Effects of age, milk yield, and clinical abnormalities on involution of cervix and uterus, ovulation, estrous cycles, detection of estrus, conception rate, and days open // J. Dairy Sci. - 1983. - Vol. 66. - P. 1128-1147.
279. Francos, G., Mayer E. Analysis of fertility indices of cows with extended postpartum anestrus and other reproductive disorders compared to normal cows // Theriogenology. - 1988. - Vol. 29. - P. 399-412.
280. Frizyne, S. Stability of the cows of different genotypes to mastitis / S. Frizyne, T. Boord // Irish. Vet. News. - 1993. - V.3. - №1. - P. 12-20.
281. Gwazdauskas, F.C, Whittier W.D., Vinson W.£., Pearson R.E. Evaluation of reproductive efficiency of dairy cattle with emphasis on timing of breeding // J. Dairy Sci. - 1986. - Vol. 69. - P. 290-297.
282. Halladay, D. Cb - case far 3-x milking / D. Halladay, A. Making //The Dairman. - 1981. - V.61. - № 5. - P. 14-15.
283. Hamudikuwanda, H., Erb H. / V., Smith R. D. Effects of sixty-day milk yield on postpartum breeding performance in Holstein cows // J. Dairy Sci. - 1987. - № 70. - P. 2355-2365.
284. Hansen, C.H., Drion P. V., LourtieO., DepierrewcC, Christiance E. La mortalite embryonnaire. Aspect cliniques of facteurs etiologiques danslespece bovine // Ann. Meg. Vet. - 1999. - № 143. - P. 91-118.
285. Haresign, W. Body condition, milk yield and reproduction in cattle // Recent Advances in Anim. Nutrition. - 1979. - Vol. 2. - P. 107-122.
286. Harrisson, R.O., Young J.W., Freeman A.E., FordS. P. Effects of lactational level on reactivation of ovarian function and interval from parturition to first visual oestrus and conception in high producing Holstein cows // Animal Production. - 1989. - № 49. - P. 23-28.
287. Hillers, J.K., Senger P.L., Darlington R.L., Fleming W.N. Effects of production, season, age of cow, days dry, and days in milk on conception to first service in large commercial dairy herds // J. Dairy Sci. - 1984. - Vol.67. - P. 861-867.
288. Jovanovac, S. Use Holstein-Friesian as a reserve of increase of efficiency of local dairy cattle / S. Jovanovac, L. Skalicki // J. Dairy Sci. - 1998. - V. 11. - № 2. - P. 33-36.
289. Kamphues, J. Effects of feeds and feeding on fertility in food producing animals (Vartr.). 5. Orelandertag. Fertilitat und Sterilitat, Stadtgarten Schwabish Gmund, 18-20 Sept. 1997 / Reprod. Domest. Anim. - 1997. Suppl. - №4. - P. 51-54.
290. King, I.O. The relationship between the conception rate and changes in body weight, yield and SNF content of milk in dairy cows // Vet. Rec. - 1968. - Vol. 83. - P. 492-494.
291. Kureoja, A., Kaart T. The factors affecting the insemination results of cows // Book of Abst. of the 49th Ann. Meet, of the Eur. Ass. for Anim. Prod. Warsaw. - 1998. - 186 p.
292. Laing, J.A. Some factors in the etiology and diagnosis of bovine in fertility // Veter. Rec. - 1945. - Vol. 57. - P. 257-280.
293. Landau, S., Braw-Tal R., Kaim M., Bor A., Bruckental I. Dominance and diet affect the insulin content of follicles in highyielding dairy cows // 14th International Congress on Animal Reproduction: Abstracts. Stockholm. - 2000. - Vol. 1. - 41 p.
