Sincronização do cio e inseminação artificial em cabra no Semiárido de Pernambuco.

Abstract

The aim of the present study was to evaluate the use of the male effect in the synchronization of the estrus in goats, associated to a hormonal administration. 90 females, and 4 fertile Boer bucks, were used. The females were separate from physical and visual contact with males for a period of one month and they received concentrated ration twice a day. The female were divided in 3 experimental groups with 30 goats each: G1 – vaginal sponges were inserted impregnated with 50mg of medroxiacetate progesterone (MAP), for a period of 12 days, in the tenth day of permanence cloprostenol 0,5ml was applied , from 36 at 42 hours after the removal of the sponge two males of proven fertility were introduced by a period of seven days; G2 - No application of vaginal sponges nor cloprostenol, two fertile bucks were introduced for a period of seven days; G3 - they had inserted vaginal sponges impregnated with 50mg of MAP, for a period of 12 days, in the tenth day of permanence 0,5ml cloprostenol was applied, in the 12° day 250μg eCG intramuscular, were applied. The females were bred witth the spontaneous manifestation of the estrus. The results for the synchronization of the estrus and fertility were: G1 80% and 70%, G2 30% and 24% and 68% and 60% respectively. It is ended that, the association of implant intravaginal of progesterone and cloprostenol, associate to the male effect presents satisfactory results of synchronization and fertility .