DIAGNOSIS OF PREGNANCY IN DAIRY-COWS BASED ON THE PROGESTERONE CONTENT OF MILK .1. DISCRIMINATING BETWEEN PREGNANT AND NON-PREGNANT DAIRY-COWS ON THE BASIS OF MILK PROGESTERONE LEVELS

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作者
BUTTERFIELD, WA [1 ]
LYNE, MC [1 ]
LISHMAN, AW [1 ]
机构
[1] UNIV NATAL,DEPT AGR ECON,PIETERMARITZBURG 3200,SOUTH AFRICA
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S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
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页码:150 / 152
页数:3
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