【摘要】 试验旨在探究不同精粗比例全混合日粮对育肥期藏羊母羔生产性能和经济效益的影响。试验采用单因素随机设计,选取3月龄、体重相近[(22.00±0.54) kg]且体况良好的藏羊母羔210只,随机分为7个处理组,每组5个重复,每个重复6只,分别饲喂精粗比为80:20(试验Ⅰ组)、70:30(试验Ⅱ组)、60:40(试验Ⅲ组)、50:50(试验Ⅳ组)、40:60(试验Ⅴ组)、30:70(试验Ⅵ组)和20:80(试验Ⅶ组)的全混合日粮。试验期为100d,其中预试期为10d,正式试验期为90d。结果表明,藏羔羊在育肥0～90d期间,精料比例占60%～70%的全混合日粮饲喂效果较佳,其中0～30d和31～90d精粗比分别以70:30、60:40的日粮为宜。更多还原

【Abstract】 In order to explore the effect of different ratio of concentrate and roughage on the performance and economic benefit of Tibetan ewe lambs in fattening period.Single factor random design was used in the experiment,and 3-month-old and body weight was similar(22.00±0.54) kg 210 ewes in good condition were randomly divided into 7 treatment groups,5 replicates in each group,6 replicates in each group.They were fed with a total mixed diet of 80:20(test group Ⅰ),70:30(test groupⅡ),60:40(test group Ⅲ),50:50(test group Ⅳ),40:60(test group Ⅴ),30:70(test group Ⅵ)and 20:80(test Ⅶ).The trial period was 100 days,including 10 days for pre trial and 90 days for normal trial.The results showed that:during the period of 0～90 days fattening,the effect of total mixed diet with concentrate ratio of 60%～70% was better,and the best concentrate roughage ratio of 0～30 days and 31～90 days was 70:30 and 60:40 respectively.更多还原