归芪益母口服液发酵药渣对湖羊生长性能、屠宰性能、血清生化及免疫指标的影响

Effects of Guiqi Yimu oral liquid fermented residue on growth properties,slaughter performance,serum biochemical and immune indexes of Hu sheep

为了解生物发酵后的归芪益母口服液药渣对湖羊生长性能、屠宰性能、血清生化及免疫指标的影响,试验将60只3月龄的健康湖羊随机分为T0.5组、T1.5组、T3组、T4.5组和对照组,对照组饲喂基础日粮,T0.5组、T1.5组、T3组和T4.5组在基础日粮中分别添加0.5%、1.5%、3.0%及4.5%归芪益母口服液发酵药渣,试验期为95 d。试验结束后测量各组湖羊末重,计算平均日增重、平均日采食量及料重比;每组选取3只与同组水平相近的湖羊进行屠宰,测定湖羊屠宰性能、肉品质,试验期最后1天对剩下的所有湖羊采血,分离血清,用于检测血清生化和免疫指标。结果表明:与对照组相比,T1.5组、T3组、T4.5组湖羊末重、平均日增重、宰前活重、胴体重、屠宰率和眼肌面积均显著升高(P<0.05),料重比显著降低(P<0.05);各试验组湖羊眼肌pH值、滴水损失率、亮度、红度和黄度,血清中总蛋白、白蛋白、球蛋白质量浓度,以及尿素氮和葡萄糖浓度差异不显著(P>0.05);T1.5、T3、T4.5组湖羊血清中三酰甘油、胆固醇、低密度脂蛋白胆固醇浓度均显著降低(P<0.05),高密度脂蛋白胆固醇浓度显著升高(P<0.05);T1.5组、T3组、T4.5组湖羊血清中肿瘤坏死因子-α(TNF-α)、白细胞介素-1β(IL-1β)、白细胞介素-6(IL-6)和白细胞介素-8(IL-8)质量浓度显著下降(P<0.05),免疫球蛋白A(IgA)、免疫球蛋白M(IgM)和免疫球蛋白G(IgG)质量浓度显著升高(P<0.05)。说明在基础日粮中添加归芪益母口服液发酵药渣可有效提高湖羊的生长性能、屠宰性能及免疫性能,考虑到饲喂成本,建议在湖羊基础日粮中添加1.5%归芪益母口服液发酵药渣。

In order to understand the effects of Guiqi Yimu oral liquid residue on the growth properties,slaughter performance,serum biochemical and immune indexes of Hu sheep,sixty 3-month-old healthy Hu sheep were randomly divided into the T0.5 group,T1.5 group,T3 group,and T4.5 group.The animals in the control group were fed with the basal diet,and the animals in the T0.5 group,T1.5 group,T3 group,and T4.5 groups were fed the basal diet supplemented with 0.5%,1.5%,3.0%,and 4.5%Guiqi Yimu oral liquid fermented residue,respectively.The experimental period was 95 d.After the experiment,the final weight of each group of Hu sheep was measured,and the average daily gain,average daily feed intake,and feed to weight ratio were calculated.Three sheep in each group with similar level to the same group were selected for slaughter performance and meat quality of Hu sheep were measured.On the last day of the expriment period,blood samples were collected from all the remaining Hu sheep,and serum were separated for detection serum biochemical and immune performance indicators of Hu sheep were measured.The results showed that compared with the control group,the final weight,average daily gain,live weight before slaughter,carcass weight,slaughter rate,and eye muscle area in the T1.5,T3,and T4.5 groups were significantly increased(P<0.05),while the feed to weight ratio was significantly decreased(P<0.05).There was no significant difference in the pH value,drip loss rate,brightness,redness and yellowness of eye muscle,as well as the mass concentration of total protein,albumin,globulin,and concentration of glucose and blood urea nitrogen in serum among the experimental groups(P>0.05).The concentrations of triacylglycerol,cholesterol and low-density lipoprotein cholesterol in serum of Hu sheep in the T1.5,T3 and T4.5 groups was significantly decreased(P<0.05),and the concentration of high-density lipoprotein cholesterol was significantly increased(P<0.05).In the serum of Hu sheep in T1.5,T3,and T4.5 groups,the mass concentrations of tumor necrosis factor-α(TNF-α),interleukin-1β(IL-1β),interleukin-6(IL-6)and interleukin-8(IL-8)were significantly decreased(P<0.05),while the mass concentrations of immunoglobulin A(IgA),immunoglobulin M(IgM),and immunoglobulin G(IgG)were significantly increased(P<0.05).The results indicated that the growth performance,slaughter performance and immune performance of Hu sheep could be effectively improved by adding Guiqi Yimu oral liquid fermented residue to the basal diet.Considering the feeding cost,it was recommended to add 1.5%Guiqi Yimu oral liquid fermented dregs to the basal diet of Hu sheep.