Biostimulation in cattle
the bull effect
DOI:
https://doi.org/10.52945/rac.v10i2.1989Keywords:
Animal production, cattle farming, biostimulation in cattleAbstract
Fertility is the most important characteristic affecting the performance of any animal production system. Biostimulation is a simple technique capable of favorably modifying the reproductive performance of cattle. The increase in birth rate is measured to increase production efficiency, a technique with the potential to be easily adopted by breeders, as it does not require significant costs.
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CUPP, A.S.; ROBERSON, M.S.; STUMPF, T.T.; WOLFE, M.W.; WERTH, L.A.; KOJIMA, N.; KITTOK, R.J.; KINDER, J.E. Yearling bulls shorten the duration of postpartum anestrus in beef cows to the same extend as do mature bulls. Journal of Animal Science, Champaign, v.71, p.306-309, 1993.
CUSTER, E.E.; BERARDINELLI, J.G.; SHORT, R.E.; WHERMAN, M.; ADAIR, R. Postpartum interval to estrus and patterns of LH and progesterone in first-calf suckled beef cows exposed to mature bulls. Journal of Animal Science , Champaign, v.68, p.1370-1377, 1990.
KILKENNY, J.B. Reproductive performance of beef cows. World Review of Animal Production, Roma, v.14, n.3, p.65-75, 1978.
MacMILLAN, K.L.; ALLISON, A.J.; STRUTHERS, G.A. Some effects of running bulls with suckling cows or heifers during the premating period. New Zealand. Journal of Experimental Agriculture, Wellington, v.7, p.121, 1979.
MONJE, A.R.; ALBERIO, G.; SCHIERSMANN, P.J.; CHEDRESE, P.J.; CAROU, N. Effect of male presence on sexual activity postcalving of breeding cows in two nutritional levels. Revista Argentina de Producción Animal, v.4, p.364, 1983.
STABENFELDT, G.H.; EQVIST, L.E. Processos reprodutivos na fêmea. In: SWENSON, M.J.; REECE, W.O. (ed.). Fisiologia dos animais domésticos. Rio de Janeiro: Guanabara-Koogan, 1996. p.615-644.
STUMPF, T.T; WOLFE, M.W.; WOLFE, P.L.; DAY, M.L.; KITTOK, R.J.; KINDER, J.E. Weight changes prepartum and presence of bulls postpartum interact to affect duration of postpartum anestrus in cows. Journal of Animal Science, Champaign, v.70, p.3133-3137, 1992.
ZALESKI, D.D.; DAY, M.L.; GARCIA-WINDER, M.; IMAKAWA, K.; KITTOK, R.J.; DOCCHIO, M.J.; KINDER, J.E. Influence of exposure to bulls on
resumption of estrous cycles following parturition in beef cows. Journal of Animal Science, Champaign, v.59, p.1135-1139, 1984.
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Copyright (c) 1997 Sergio Augusto Ferreira de Quadros
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