Amino acids profile of rumen-undegradable protein of maize, rice bran, soyabean meal and rapeseed meal in steers

摘要：

Maize, rice bran, soyabean meal and rapeseed meal were used to explore the effects of ruminal incubation on the amino acids profile of rumen-undegradable protein (RUP) in steers. Except maize, the disappearances of total amino acids (TAAs) and CP in feeds changed dramatically during former 24 h (P＜0.05), and some slight differences were found in the following 24 h (P＞0.05). Arginine and histidine were more sensitive to microbial degradation, but branch-chain AAs (isoleucine, leucine and phenylalanine) were more resistant. Microbial contamination should be taken into account to compare degradation rate of individual AA especially for branch-chain AAs in future research.

关键词： amino acid profile in situ degradation feed evaluation ruminants

作者: C.Y.Xie H.J.Yang Q.Yue X.B.Yao J.Q.Wang

作者单位: Department of Animal Biology and Physiology, College of Biological Sciences, China Agricultural Univ Department of Animal Biology and Physiology, College of Biological Sciences, China Agricultural Univ State Key Laboratory of Animal Nutrition, Institute of Animal Science,China Academy of Agricultural

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: 735-740

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）