Effect of management type, conventional versus organic, on production and culling in Southeastern Pennsylvania dairy herds

被引：0
|
作者：
Griswold, K. E. [1 ]
Karreman, H. [2 ]
Mylin, J. [3 ]
机构：
[1] Penn State Univ, Cooperat Exten, University Pk, PA 16802 USA
[2] Penn Dutch Cow Care, Gap, PA USA
[3] Lancaster DHIA, Mannheim, PA, Germany
来源：
POULTRY SCIENCE | 2007年 / 86卷
关键词：
organic; conventional; herd health;
D O I：
暂无
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
引用
收藏
页码：582 / 583
页数：2
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