Evaluación de la eficiencia de protocolos de inseminación artificial a término fijo en búfalas en la región de Santa Bárbara Estado Del Zulia.

Abstract

IATF is one of the technologies that aims to increase pregnancy rates in the herd by controlling the luteal phase, follicular growth and ovulation through the use of drugs. The objective of the present study was to clarify the efficacy of the two most commonly used IATF protocols during the unfavorable season (May-June) in the region of Santa Barbara, municipality of Colon in the country of Venezuela. For this purpose, a total of 36 Murrah breed buffaloes were used, taking into account variables such as weight, body condition, reproductive indexes, subjected to the same management conditions and equal feed supply. The protocols used in the study were the Cosynch+eCG+DIB and the progestogen-based protocol (P4+ E2 + PGF2a + eCG), using 18 buffaloes, respectively. The pregnancy rate obtained with the two protocols was 44.44%. The Cosynch+Ecg+DIB protocol yielded a pregnancy rate of 55.55% (10/18), and the progestin-based protocol yielded a pregnancy rate of 33.33% (6/18). These findings demonstrate that the Cosynch+Ecg+DIB protocol tends to be more effective in the non-reproductive seasons of the estrous cycle of buffaloes, presenting a higher pregnancy rate.