动物营养学报2017，Vol.29Issue(12)：4349-4354,6.DOI:10.3969/j.issn.1006-267x.2017.12.015
瘤胃保护型亮氨酸对滩羊母羊繁殖性能 、消化性能及初乳品质的影响
Effects of Rumen Protected Leucine on Reproductive Performance, Digestion Performance and Colostrums Quality of Ewes of Tan Sheep
摘要
Abstract
The objective of the present experiment was to determine the effects of rumen protected leucine ( RP-Leu) on reproductive performance, digestion performance and colostrums quality of ewes of Tan sheep. Forty-eight multiparity ewes of Tan sheep with an average body weight of (42.18±2.62) kg were randomly as-signed into 4 groups ( 3 replicates per group, and 4 ewes per replicate) .Control group used a basal diet, and experimental groups were supplemented 0, 0.10% , 0.20% and 0.30% RP-Leu based on control group, respec-tively.The trial began at 35 d after conception and ended at 60 d ( weaning) after parturition.The results showed as follows:compared with control group, the supplementation of 0.20% RP-Leu in diet for pregnant e-wes significantly increased birth weight and weaner weight of their lambs (P<0.05), significantly increased the apparent digestibility of crude protein of pregnant ewes of Tan sheep ( P<0.05) , significantly increased the contents of milk fat, milk protein and lactose of colostrums ( P<0.05) , and significantly decreased the content of serum urea nitrogen of ewes at 15 d after parturition (P<0.05).In conclusion, dietary supplementation of RP-Leu can improve nitrogen deposition and colostrums quality of ewes of Tan sheep, and improve growth and development of their lambs.关键词
亮氨酸/滩羊/繁殖性能/初乳品质/表观消化率Key words
leucine/Tan sheep/reproductive performance/colostrum quality/apparent digestibility分类
农业科技引用本文复制引用
张桂杰,寇启芳,牛文志,曹思怡..瘤胃保护型亮氨酸对滩羊母羊繁殖性能 、消化性能及初乳品质的影响[J].动物营养学报,2017,29(12):4349-4354,6.基金项目
国家自然科学基金"滩羊妊娠期日粮亮氨酸水平对子代骨骼肌蛋白质合成的调控机制"( 31360556) （ 31360556）
