RESEARCH OF DIAGNOSIS OF EARLY PREGNANCY OF CHINESE HOLSTEIN COWS BY MEASURING THE CONTENETS OF PROGESTERONE AND OESTRADIOL IN MILK
CHEN Hai-yan~1 FU Yan~2(1.Department of Biology,Lishui College,Lishui,Zhejiang 323000;2.College of Animal Science,Zhejiang University,Hangzhou,Zhejiang 310029)
J4 . 2008, (01): 93 -96 .  DOI: 10.11869/hnxb.2008.01.0093

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