Age of First Calving and Subsequent Fertility and Survival in Holstein Friesian Cattle

constantin Gavan

Abstract


The aim of the study was to investigate the relationship between age at first calving (AFC) and subsequent fertility and survival up to third calving in Holstein Friesian heifers. Study comprised 116 consecutively born female calves from the same herd. The animals were divided in four AFC groups for analysis: <24 months, 25-27 months, 28-30 months, > 30 months. Fertility before first calving was recorded as age at first breeding (AFB), services per conception (S/C), age at conception, first service conception rate (FSCR) and actual AFC. After first calving, fertility was recorded as days to first service (DFC), days to conception (DTC), S/C and FSCR. Survival rate up to third calving also was recorded. The proportion of heifers conceiving to first service, before calving, was highest (100%) for the youngest AFC group (<24 mounth) and worst (33,33%) for the oldest AFC gropu (>30 mounth). Fertility in the first lactation was best in primiparous cows calving at 25-27 months. Survival rate up to third calving was 42,85% for <24 months group, 75,55% for 25-27 months group, 68,42% for 28-30 months group and 44,44% for >30 mounth group. In conclusion, performance in Holstein Friesian cows was achieved with an AFC of 25-27 months. These animals performed well in terms of fertility and survival.


Keywords


Age at First Calving; Fertility; Holstein Friesian Heifer, Longevity

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References


Tozer, P.R. and A.J. Heinrichs, 2001, What affects the cost of raising replacement dairy heifers: A multiple component analysis. Journal of Dairy Science 84: 1836-1844.

Pirlo, G., Miglior F. and Speroni M., 2000, Effect of age at first calving on production traits and on difference between milk returus and rearing costs in Italian Holsteins. Journal of Dairy Science, 83: 606-608.

Martinez, M.L., A.E. Freeman and P.J. Berger, 1983, Genetic relationship between calf livability and calving difficulty of Holstens., Journal of Dairy Science, 66, 1494-1502.

Thompson, J.R., E.J. Pollak and P.L. Pellisier, 1983, Interrelationship of parturition problems, production of subsequent lactation, reproduction and age at first calving. Journal of Dairy Science, 66: 1119-1127.

Allaire, F.R. and C.Y. Lin, 1980, Heritability of age at first calving. Journal of Dairy Science 63: 171-173.

Moore, R.K., B.W. Kennedy, L.R. Schaeffer and J.E. Moxley, 1991. Relationship between age and body weight at calving and production in first lactation Ayrshires an Holsteins. Journal of Dairy Science 74: 269-278.

Gardner, R.W., L.W. Smith and R.L. Park, 1988, Feeding and management of dairy heifers for optimal lifetime productivity. Journal of Dairy Science 71: 996-999.

Lin, C.Y., A.J. McAllister, T.R. Batra, A.J. Lee, G.L. Roy, J.A. Vesely, J.M. Wanthy and K.A. Winter, 1988, Effects of early and late breeding of heifers on multiple lactation performance of dairy cows. Journal of Dairy Sceince, 71: 2735-2743.

Gil, G.S., and F.R. Allaire, 1976, Relationship of age at first calving, days open and herd life to a profit function for dairy cattle. Journal of Dairy Science, 59: 1131-1139.

Evans, R.D., M. Wallace, D.J. Garrick, P. Dillon, D.P. Berry and V. Olori, 2006, Effect of calving age, breed fraction and month of calving on calving interval and survival across parities in Irish spring calving cows. Livestock Science 100: 216-230.

Schneider M.P., P.E. Standberg, U. Emanuelson, K. Grandinson and A. Roth, 2007, The effect of veterinary treated clinical mastitis and pregnacy status on culling in Swedish dairy cows. Preventive Veterinary Medicine, 80: 179-192.

Shook, G.E., 2006, Major advances in determining appropriate selection goals. Journal of Dairy Science, 89: 1349-1361.


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LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

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