Effect of replacing the second gonadotropin releasing hormone of Ovsynch and Co-synch protocols with human chorionic gonadotropin on the reproductive performance of primiparous lactating cows during the cool months of the year

The study objective was to evaluate the effect of replacing the second gonadotropin releasing hormone (GnRH2) of the Ovsynch and Co-Synch protocols with human chorionic gonadotropin (hCG) on ovulation, conception, pregnancy, and embryo loss rates in primiparous lactating dairy cows. Forty-nine primi...

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Main Authors: M. Fattahi, M. Goli
格式: 文件
语言:English
出版: Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria 2024-12-01
丛编:Bulgarian Journal of Veterinary Medicine
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