Uso da gonadotrofina coriônica humana (hCG) na indução da ovulação de éguas no Estado da Paraíba.

Abstract

Use of hCG for induction of ovulation in mares. Data on the use of Human Chorionic Gonadotropin (hCG) in inducing ovulation in 40 mares of Quarter Horse and Mangalarga created in various regions of the state of Paraíba were analyzed. The use of 1500 and 2500 IU intramuscularly was tested aimed evaluating the induction of ovulation, pregnancy rate, duration of response inducer. The females were divided into 4 groups of 10 females, as follows: G 1 Quarter Horse with 1500 IU, G2 1500 IU with Mangalarga , G3 Quarter Horse with 2500 IU and G4 2500 IU Mangalarga The hCG was used when a dominant follicle of 35mm was diagnosed. The artificial insemination with refrigerated semen 5°C was performed 24 hours following. It was found that there was no difference in pregnancy rates between groups, between races, as well as the elapsed time for ovulation induction.