Negative Energy Balance in Early Lactation of Cows:Reasons and Risks
In dairy cows the high milk yield has lead to a significant reduction of longevity.So-called production diseases such as impaired reproductive performance,lameness.mastitis.metabolic disorders,displacement of the abomasum and increasing mortality rates are the major reasons for early removal of cows from milking herds.The aetiology of these diseases and of the associated mortality is complex,but negative energy balance (NEB)is obviously a predominant cause of production diseases.NEB is a consequence of the homeorhetic regulation of energy metabolism,but the extent and duration of NEB has been increased by selection of high genetic merit cows.Suggestions are made for a better understanding of the causality between NEB and diseases.
Martens,H Shen,Z
Department of Veterinary-Physiology,Freie Universitaet Berlin,Germany College of Veterinary Medicine.Nanjing Agricultural University,China
国际会议
XVIth International Congress on Animal Hygiene(第十六届动物卫生国际会议(ISAH 2013))
南京
英文
344-346
2013-05-05（万方平台首次上网日期，不代表论文的发表时间）