한우 수란우의 임신율에 대한 hCG 영향과 혈장 요소태질소 수준과의 관계

서지정보

ㆍ발행기관 : 한국수정란이식학회 ㆍ수록지정보 : Journal of Embryo Transfer / 15권 / 2호
ㆍ저자명 : 박수봉, 임석기, 우제석, 김일화, 최선호, 이장희, 김인철, 손동수

영어 초록

This study was undertaken to test the hypothesis the hypothesis that treatment with hCG (5,000 IU) at the time of embryo transfer would enhance pregnancy rates in recipients, and the concentration of plasma urea nitrogen(PUN) in recipients was related to the effect of hCG on the reproductive performance. Blood samples were taken according to experimental condition for the assessment of the endogenous plasma progesterone concentration and plasma urea nitrogen. Concentrations of progesterone in plasma were higher in cows treated with hCG on day 7(estrus=day 0) than in those untreated during 7∼43 days after insemination. The pregnancy rates were 65.5 and 54.6% for the hCG treated and untreated groups, respectively. In recipient group categorized with PUN concentration of <12 mg/이, the pregnancy rates were 68.8 and 46.7% for the hCG treated and untreated groups, respectively. The results suggest that hCG treatment at 7 days after insemination could be used to increase the pregnancy rate of embryo transfer, and transfer, and only the recipients with PUN concentration of <12 mg/dl were influenced by treatment with hCG.

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