Evaluación de los Protocolos Disponibles Para Sincronización de Celo para Inseminación Artificial a Tiempo Fijo en Vacas Lecheras.

Abstract

This research was carried out to advance knowledge of reproductive philosophy the bovine especially in the characteristic follicular development has contributed to the development of Timed Insemination blood, these parametres can improve both productive and reproductive, starting with the use of different hormones such as: GnRH and PGF2a them have led to an improvement in the fertility rate, as noted Bautista, E. (2008), who found that cows became pregnant 8 of 12 cows, and of them corresponding to insemination efter 66 hours of applied HCG, then, was used for 6 inseminations more, came to have an average of 1.20 services per conception and fertility rate of 83%. It concludes that theuse and reuse of hormone involved in reproductive processes improvefertility rates and trouble shoot fertility problems are are not only related to pathological problems, nutritional (energy imbalance) by a hormonal disorder bone high production of P4 (progesterone) that causes a constant anestrus or E2 (estrogen) or persistent jealousy (nymphomania).