Effect on fertility of heat synchranization in breeding season at hair goat

In this study, it was aimed to determine the effect of heat synchronization application on fertility of hair goats in breeding season. A total of 200 head hair goats were used as animal material between 3-5 years of age. The animals were divided into two groups equal, (Control group, KG, n = 100; Heat synchronization group, KS, n = 100). The KS group received intravaginal sponges containing 30 mg flugeston acetate and was removed 12 days later and injected intramuscular 500 IU of PMSG/per animal. Mating was performed using Hair bucks for 4 days. The maiting process was started at the same time in both groups and was ended after 4 days. Single birth rate was 72 % in the KG and 35 % in the KS group (P <0.01). Twice birth rate was 24 % in the KG and 62 % in the KS group (P<0.01). In terms of birth rate and infertility ratio was not found difference between the groups (P>0.05). Fecundity and litter size were 1,20 and 1,59 in the control group and 1,25 and 1,64 in the KS group, respectively. As a result, the application of heat synchronization in hair goats in the breeding season improved the fertility.