畜牧与兽医2013，Vol.45Issue(7)：14-18,5.
蛋白水平及Lys/Met对早期断奶藏羔羊生长发育的影响
Effects of dietary CP levels and Lys/Met retios on growth and development in early-weaned Tibetan lambs
摘要
Abstract
This experiment was conducted to study the effect of CP levels and Lys/Met retio in diets on growth and development in earlyweaned Tibetan lambs.Early-weaned Tibetan lambs of 98 at 55±2 days old and 10.85±0.65 kg were randomly allocated into 7 groups with 14 lambs(half males and half females)in each group.The animals were fed basal diets which CP levels and Lys/Met were different for 20days.The results showed that the feed intake,daily gain and serum protein of lambs were increased and the diarrhea rate decreased as dietary CP levels increasing from 15％ to 21％.Lys/Met ratio at 3.1 ∶ 1 was the best when the CP level was 18％,which could be the replacement of 21％ high protein diet.Lys/Met ratio at 3.1 ∶ 1 at 15％ CP level,which could be replacement the 18％ high protein diet.Together,the nutrition level of diets can influence the growth and development and serum index and 18％ protein levels and Lys/Met ratio of 3.1 ∶ 1 is suggested for early-weaned Tibetan lambs.关键词
营养水平/早期断奶藏羔羊/腹泻率/生长性能Key words
nutrition level/early-weaned Tibetan lamb/diarrhea rate/growth performance分类
农业科技引用本文复制引用
吕凯,侯生珍,王志有,郭远玉,梁晓兵..蛋白水平及Lys/Met对早期断奶藏羔羊生长发育的影响[J].畜牧与兽医,2013,45(7):14-18,5.基金项目
国家科技部项目(2012GB2G200471) （2012GB2G200471）
青海省2010年省校科技合作项目(2010-395-1) （2010-395-1）
