Induction of estrus in buffalo by luteolysis management (single PGF and dual administration)

Abstract

Induction of estrus in buffaloes is more difficult to obtain compared to that in bulls. There are many hormonal protocols, applied through reproductive biotechnologies, which can generate favorable results, if optimal conditions are used, managing cyclicity, seasonality, nutrition and health. Regarding the induction of estrus in cattle and buffaloes using prostaglandins was used. These PGF2α have a luteolytic effect on the luteal body and will induce increased pituitary gonadotrophin secretion within 2-3 days of application. Buffaloes that respond to PGF treatment are those that have a regular cycle and have a luteal activity within 11 days. In the case of our study, a single dose of PGF therapy was initiated, following the occurrence of estrus after 2-3 days. After the first administration of PGF, 6/24 females were diagnosed in the estrous phase, representing 25%. Thus RC for the induction of estrous with PGF in single and repeated dose at 11 days was 41.6%.