Effects of rumen-protected tryptophan on growth performance,fibre characteristics,nutrient utilization and plasma essential amino acids in Cashmere goats during the Cashmere slow growth period

作     者：Hui Ma~a,Wei Zhang~a,Xiaoping Zhu~a,Weihong Song~b,Jun Liu~c,Zhihai Jia~(a,*) a College of Animal Science and Technology,China Agricultural University,Beijing 100193,P.R.China b Department of Science and Research of Hei longjiang Academy of Land-reclamation Sciences,Jiamusi 154007,P.R.China c The College of Animal Science and Technology of Hei longjiang August First Land-Reclamation University, Daqing 163319,P.R.China * Corresponding Author.Present address:College of Animal Science and Technology,China Agricultural University,Beijing 100193,P.R.China. 

会议名称：《低碳经济与高效养殖——第六次全国饲料营养学术研讨会暨动物营养学分会成立三十周年大会》

会议日期：2010年

学科分类：0905[农学-畜牧学] 09[农学] 

关 键 词：rumen-protected tryptophan growth performance fibre characteristics nutrient utilization plasma essential amino acids Cashmere goats 

摘      要：Tryptophan(Trp) is a limiting amino acid in growing ruminants and supplementation of Trp in a rumen-protected form may be positive effects on performance in *** may affect cashmere fibre growth by regulating plasma melatonin *** December to February,identified as the cashmere slow growth period,cashmere growth rate slows down and plasma melatonin secretion ***,Trp supplementation may affect cashmere fibre growth positively during this period.Tryptophan(Trp) is a limiting amino acid in growing ruminants and supplementation of Trp in a rumen-protected form may be positive effects on performance in *** may affect cashmere fibre growth by regulating plasma melatonin *** December to February,identified as the cashmere slow growth period,cashmere growth rate slows down and plasma melatonin secretion ***,Trp supplementation may affect cashmere fibre growth positively during this period.