Evaluación de la concepción en cabras utilizando semen crio preservado

Abstract

The research was conducted in the Ovine-Caprine-Camelid Research Academic Unit of Tunshi Experimental Station of the faculty of Animal Sciences - Escuela Superior Politécnica de Chimborazo, province of Chimborazo, Riobamba Canton at kilometer 12 on Licto road, with the aim of evaluating conception in goats using cryopreserved semen, 12 goats of reproductive age were used, forming each experimental unit by a goat, to which a protocol was applied to synchronize 13-day fixed-time heat, applying synthetic prostaglandin to the “0 and 9’’ days, equine chorionic gonadotropin at 11’’, it was artificially inseminated with cryopreserved semen obtained from a previous investigation on the 13th day. Post-defrosting microscopic analysis of semen was performed to which descriptive statistics were applied, obtaining the following results: mass and individual motility 75.83% and 2.76Pts respectively, in the quantification of living cells 82.94% and 17.06% dead., the sperm morphology indicated that the sperm in general presented normal structure (95.49%) being found as abnormalities and deformations (macrocephalus, with cytoplasmic drop, tail in whip and rolled tail).In experimental measurements for the reproductive part, the presence of heat was evaluated between 22-31 hours after the end of the protocol, observing heat in 12 / 12 goats. In biological fertility by the ultrasound method at 45 days 100% pregnant. It was concluded that the experimental measurements were successful since the experimental units were controlled by an intensive technical management; therefore it is recommended to use cryopreserved semen in the artificial insemination of goats.