At oestrus, the progesterone concentration in the peripheral blood plasma was 0.±0.0 ng/ml and that in the pooled bucked milk was .8±0.ng/ml.
At oestrus, the progesterone concentration in the peripheral blood plasma was 0.±0.0 ng/ml and that in the pooled bucked milk was .8±0.ng/ml.
奶牛在发情时,外周血浆孕酮值为0.±0.0 ng/ml,奶桶混合乳中的孕酮值为.8±0.ng/ml;