发酵木薯渣对湖羊生长性能、血清生化指标及经济效益的影响

Effects of fermented cassava residue on growth performance,serum biochemical indexes,and economic benefits of Hu sheep

试验旨在探究在饲料中添加不同含量的发酵木薯渣对湖羊生长性能、血清生化指标及经济效益的影响。选择断奶湖羊48只,随机分成4组,每组12个重复,每个重复1只羊。各组湖羊分别饲喂添加0(对照组)、10%、20%和30%发酵木薯渣的饲粮。预试期7 d,正式试验期60 d。结果显示:与对照组相比,20%发酵木薯渣组湖羊的末重、总增重、平均日增重显著增加(P<0.05),料重比显著降低(P<0.05);血清中总蛋白、白蛋白含量显著升高(P<0.05),尿素氮含量显著降低(P<0.05);10%、20%发酵木薯渣组谷草转氨酶活性显著降低(P<0.05);10%、30%发酵木薯渣组肌酐含量显著升高(P<0.05);20%、30%发酵木薯渣组尿酸含量显著升高(P<0.05)。与对照组相比,各发酵木薯渣组湖羊的增重收入分别增加了10.68%、23.76%、16.57%,养殖利润分别增加了10.36%、36.92%、14.99%。研究表明,饲粮中添加20%的发酵木薯渣可以改善湖羊的生产性能,养殖经济效益较好。

The experiment aimed to explore the effects of adding different amounts of fermented cassava residue to the feed on the growth performance,serum biochemical indexes,and economic benefits of Hu sheep.A total of 48 weaned Hu sheep were randomly divided into four groups,with 12 replicates per group and one sheep per replicate.The sheep in each group were fed with feed containing 0(control group),10%,20%,and 30%fermented cassava residue.The preliminary trial period was seven days,and the formal experimental period was 60 days.The results showed that compared to the control group,the final weight,total weight gain,and average daily weight gain of the 20%fermented cassava residue group were significantly increased(P<0.05),and the feed to gain ratio was significantly decreased(P<0.05),the content of total protein and albumin in serum was significantly increased(P<0.05),and the content of urea nitrogen was significantly decreased(P<0.05).The activity of glutamic-oxaloacetic transaminase in the serum of the 10%and 20%fermented cassava residue groups was significantly decreased(P<0.05),the content of creatinine in the 10%and 30%fermented cassava residue groups was significantly increased(P<0.05),the content of uric acid in the 20%and 30%fermented cassava residue groups was significantly increased(P<0.05).Compared with the control group,the weight gain income of Hu sheep in each fermented cassava residue group increased by 10.68%,23.76%,16.57%,and the breeding profits increased by 10.36%,36.92%,14.99%,respectively.The results show that 20%fermented cassava residue in the diet can improve the production performance of Hu sheep,and the economic benefit of breeding is good.