EFFECT OF TECHNICAL PROGRESS ON HERD SIZES IN ANIMAL PRODUCTION

被引：0

作者：

ARTMANN, R

ROSEGGER, S

机构：

来源：

LANDBAUFORSCHUNG VOLKENRODE | 1972年 / 22卷 / 01期

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暂无

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

引用

页码：69 / &

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