Studies on the improvement of reproductive efficiency in Korean native cows -The use of plasma progesterone concentrations for early pregnancy diagnosis- (한우(韓牛)의 번식효율(繁殖效率) 증진(增進)에 관한 연구(硏究) -Progesterone농도(濃度) 측정(測定)에 의한 조기임신진단(早期姙娠診斷)-)
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- Korean Journal of Veterinary Research
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- v.30 no.2
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- pp.249-253
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- 1990