Organic dairy cow management and indicators of energy balance.
作者信息
Rutherford K M D, Langford F M, Jack M C, Sherwood L, Lawrence A B, Haskell M J
机构信息
Animal Behaviour and Welfare, Sustainable Livestock Systems, Scottish Agricultural College, West Mains Road, Edinburgh EH9 3JG.
出版信息
Vet Rec. 2009 Aug 1;165(5):147-8. doi: 10.1136/vr.165.5.147.
PMID:19648640
Abstract
摘要
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