Protein supply and requirement of grazing yak in China

摘要：

Forage supply of native grassland in Qinghai-Tibet Plateau reaches the greatest point in August and the lowest in the beginning of May. Feed intake of yak reached the greatest point in spring, followed by winter, and the lowest in autumn. Digestible CP (DCP) requirement (g/d) for maintenance in growing yak is 6.09 W0.52, and that for gain is (1.1548/DG + 0.0509 W0.52)-1. There is a sever shortage of forage and CP supply in winter and spring. Grazing yak should be supplemented with 67.4 g/d DCP in the first cold season and 58.4 g/d DCP in the second cold season for normal growth.

关键词： grassland protein requirement yak

作者: B.Xue S.-J.Liu X.-Q.Zhao L.H.Hu X.G.Han

作者单位: Qinghai Academy of Animal Science and Veterinary Medicine Xining 810003, P.R.China;Northwest Institu Qinghai Academy of Animal Science and Veterinary Medicine Xining 810003, P.R.China Northwest Institute of Plateau Biology, Chinese Academy of Sciences Xining 810003, P.R.China

会议类型: 国际会议

会议名称: The 7tb International Symposium on the Nutrition of Herbivores(ISNH-7)(第七届国际草食动物营养研讨会)

会议地点: 北京

会议语种:英文

页码: 586-591

在线出版日期: 2007-09-16（万方平台首次上网日期，不代表论文的发表时间）