摘要
在反刍动物日粮中添加过瘤胃赖氨酸(RPlys)可以减轻肝脏负担,维持肝功能稳定性,同时日粮中添加过瘤胃赖氨酸可以降低血浆尿素氮的浓度,改善氨基酸平衡状况。过瘤胃赖氨酸的添加还可以提高动物的日增重,平衡日粮氨基酸水平,增加小肠可消化氨基酸含量,提高日粮蛋白质的利用率,从而在一定程度上降低日粮中粗蛋白的供给,减少饲料成本。此外,反刍动物日粮中添加过瘤胃赖氨酸可以降低反刍动物腹脂率和背膘厚度,同时还可降低肉脂比。说明在反刍动物日粮中添加适宜的过瘤胃赖氨酸有利于提高其生产性能。
Adding ruminally protected lysine (RPlys) to the ruminant diet can ease the burden of liver and maintain the liver function of rumi- nants, while it can decrease the concentration of plasma urea nitrogen (PUN) and improve the equilibrium of amino acids. The addition of RPlys can also increase the daily gain of animals, balance the amino acid levels of the diet, increase the contents of digestible amino acids in small intestine and improve the utilization of dietary protein, thereby decreasing the supplementation of dietary protein and the cost of feeds to a certain extent. Moreover, adding RPlys to the ruminant diet can decrease abdominal fat percentage and back fat thickness of ruminants, while it can decrease the lean meat to fat ratio in ruminants. The results indicate that adding suitable RPlys to the ruminant diet is conducive to impro- ving the productive performance of ruminants.
出处
《黑龙江畜牧兽医》
CAS
北大核心
2017年第1期80-82,共3页
Heilongjiang Animal Science And veterinary Medicine
基金
公益性行业(农业)科研专项(201503134)