肌醇对肉兔养分消化率、生长性能和屠宰性能的影响

Effects of Inositol on Digestion of Nutrients,Growth Performance and Slaughter Performance of Meat Rabbits

试验旨在研究肌醇对肉兔养分消化率、生长性能和屠宰性能的影响。选择30日龄体重相近的肉兔160只,随机分为4组,对照组饲喂基础日粮,试验组分别饲喂添加25、50 mg/kg和75 mg/kg肌醇的试验日粮,预试期5 d,正试期40 d。研究发现:添加肌醇能显著提高肉兔对能量、粗蛋白和中性洗涤纤维的消化率(P<0.05)以及Ⅲ和Ⅳ组的屠宰率(P<0.05),略提高平均日增重和平均日采食量(P>0.05)。结果表明:在日粮中添加肌醇可以显著提高肉兔对部分营养物质的表观消化率和屠宰率,略提高生长性能,肌醇在生长肉兔中的适宜添加量为50 mg/kg。

The test was designed to determine the effect of different inositol levels on nutrient utilization,growth performance and slaughtering performance in meat rabbits.The 160 meat rabbits of similar weights at 30 days of age were selected and randomly divided into four control groups,fed basal diet,and 25,50 mg/kg and 75 mg/kg inositol,respectively,with 5 d,positive period of 40 d.The study found that the addition of inositol significantly improved the nutrient utilization of dietary energy,crude pro⁃teins and neutral washing fibers(P<0.05)and the slaughter rate of(P<0.05),slightly improving the aver⁃age daily weight gain and average daily intake(P>0.05).The results showed that adding inositol to diet could significantly improve the apparent digestion rate and slaughter rate of some nutrients in meat rab⁃bits,and slightly improve the growth performance.The appropriate amount of inositol added in growing meat rabbits was 50 mg/kg.