INVESTIGATIONS ON FEED-EFFICIENCY OF LAYING HENS .1. PHENOTYPIC RELATIONSHIPS

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作者：
HAGGER, C
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ARCHIV FUR GEFLUGELKUNDE | 1977年 / 41卷 / 06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：266 / 270
页数：5
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