The effect of estrus synchronization on the reproductive characteristics of Turkish Saanen goats and growth characteristics of kids under extensive conditions

摘要

The aim of this study was to determine the effect of oestrus synchronization on the growth characteristics of the Turkish Saanen kids under extensive production. In this study, 70 goats undergoing estrus cycles were synchronized and mated by 10 Turkish Saanen bucks, and together with the produced 124 Turkish Saanen kids, provided the animal material of the study. As a result, 204 animals were used as a material in this study. The estrus cycles of goats were synchronized with intra-vaginal progestagen sponges impregnated with 45 mg cronolone. Ten?day after the application, 0.5 ml?prostaglandin F2α (PGF2α)?(?liren?) were injected.?After 12 days, sponges were removed and the females received an intramuscular injection 400 IUPMSG?(pregnant mare serum gonadotrophin)?and each goat was mated by Turkish Saanen bucks. It was observed that the effects of FGA/PGF2α /PMSG on fertility and litter size were significant (P0.05).?In conclusion, the use of intravaginal sponges impregnated with 45 mg FGA and 0.5 ml PGF2α, in combination, is convenient for estrous synchronization of Turkish Saanen goat in Turkey during the breeding season.