Searching of Pregnancy Rate in Repeat Breeder Cows by Embryo Transfer Practices

The aim of this study is to compare the pregnancy rates by applying embryo transfer cows which are not pregnant and should be removed from herd as repeat breeder. In study, 87 randomly selected Holstein utilized. breeder (n=45) were at least one giving birth, having regular sexual cycle, missing clinical worsening into genital organ displaying an abnormal discharge. On other hand, it was nonpregnant inseminated artificially 3 times or more. Besides, that used control group (n=42) without any artificial insemination postnatally. PGF2α application performed all recipient considered benefit a in testing groups just 24 days before flushing day. After application, showing estrous symptoms recorded determined candidate recipients. 35.6% 50% for groups, respectively difference between significant (P<0,05). As result, even has been concluded can conceive especially high-yielding treatment method cows. Thereby, with high superior characteristics milk yielding have infertility problems economically beneficial utilizing yield later lactation replacement cost.