日粮添加藜麦对湖羊生长性能、营养物质消化率及经济效益的影响

Effects of quinoa on growth performance,nutrient digestibility and economic benefit of sheep

文章旨在研究藜麦秸秆对湖羊生长性能、营养物质消化率及经济效益的影响,试验将60头体况相近的湖羊随机分为4组,对照组饲喂基础日粮,试验组T1、T2、T3分别在基础日粮中添加10%、20%、30%藜麦秸秆,每组5个重复,每个重复3只羊。试验结果表明:添加不同比例的藜麦秸秆对湖羊的日均采食量无显著影响(P>0.05),T2、T3组湖羊的平均日增重较对照组分别显著提高10%和4.1%(P<0.05),料重比显著降低8.4%和4.4%(P<0.05);添加不同比例藜麦秸秆处理的湖羊对干物质、中性洗涤纤维、粗脂肪和粗蛋白质的消化率与对照组相比均无显著差异(P>0.05),T2组湖羊对有机物和酸性洗涤纤维的消化率比对照组显著提高10.6%和12.3%(P<0.05);T2、T3组湖羊的日纯利润比对照组显著提高13.28%和6.29%(P<0.05),即每只羊每天增加利润16.2和15.2元,T1组对经济效益没有影响。上述结果表明添加20%、30%的藜麦秸秆可以显著提高湖羊的生长性能,改善湖羊营养物质消化率,提高经济效益,藜麦秸秆的最佳添加比例为20%。

In order to study the effects of quinoa straw on the growth performance,nutrient digestibility and economic benefit of sheep,60 sheep with similar body condition were randomly divided into 4 treatments,with CK,T1,T2 and T3 supplemented with 0%,10%,20%and 30%quinoa straw respectively.The results showed that the addition of quinoa straw had no significant effect on the average daily feed intake of sheep,and the average daily gain of sheep of T2 and T3 was significantly higher than that of the control by 10%and 4.1%,respectively(P<0.05),the feed to gain ratio decreased significantly by 8.4%and 4.4%(P<0.05).The digestibility of dry matter,neutral detergent fiber,crude fat and crude protein of sheep treated with different proportions of quinoa straw was not significantly different from that of the control(P>0.05).The digestibility of organic matter and acid detergent fiber of sheep of T2 was significantly higher than that of the control by 10.6%and 12.3%(P<0.05).The daily net profit of sheep of T2 and T3 was significantly higher than that of the control by 13.28%and 6.29%(P<0.05).The above results show that the addition of 20%and 30%quinoa straw can significantly improve the growth performance of sheep,improve the digestibility of nutrients and improve economic benefits,and the best proportion of quinoa straw is 20%.