RELATIVE CALVING DATE OF 1ST-CALF HEIFERS AS RELATED TO PRODUCTION EFFICIENCY AND SUBSEQUENT REPRODUCTIVE-PERFORMANCE

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作者：

MARSHALL, DM

MINQIANG, W

FREKING, BA

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JOURNAL OF ANIMAL SCIENCE | 1990年 / 68卷 / 07期

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中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

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0905 ;

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页码：1812 / 1817

页数：6

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