饲料中添加益生菌制剂对水貂生产性能及免疫指标的影响
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摘要
为研究饲料中添加益生菌制剂对水貂生产性能及免疫指标的影响,试验采用单因素完全随机设计,选择60日龄体重为(960.55±80.45)g雄性水貂60只,随机分为4组,每组3个重复,每个重复5只,1组为空白对照组饲喂基础日粮,2、3、4组分别在基础日粮中添加0.5%、1.0%、1.5%益生菌制剂,试验期60 d,试验结束测定其生长性能和免疫指标。结果表明:(1)试验2、3、4组的平均日采食量(ADFI)均高于1组(P> 0.05),试验3、4组的平均日增重(ADG)分别较1组提高38.8%、31.8%(P <0.05),料重比(F/G)分别较1组降低18.6%、16.2%(P <0.05)。(2)试验2、3、4组血清中的IgM、IgA、IL-6含量均高于1组(P> 0.05),试验3、4组血清中IgG、IL-2含量较1组分别提高23.5%、14.8%、10.2%、8.2%(P <0.05)。综上,在基础饲料中添加1.0%益生菌制剂可以提高水貂的生长性能和免疫指标。
In order to study the effects of probiotics on mink production performance and immune indexes,60 male minks aged 60 days were randomly divided into four groups with 3 replicates in each group,5 in each replicate. One group was fed with basic diet as blank control group. Two,three and four groups were fed with 0.5%,1.0% and 1.5% probiotics respectively in the basic diet for 60 days.The growth performance and immune index were measured at the end of the experiment.The results showed that:(1) The avergae daily feed intake(ADFI) of test 2,3 and 4 groups were higher than that of test 1 group(P > 0.05),the average daily gain(ADF) of test 3 and 4 groups were 38.8% and 31.8% higher than that of test 1 group(P < 0.05),feed/gain(F/G) were 18.6% and 16.2% lower than that of test 1 group respectively(P < 0.05).(2) The contents of IgM,Ig A and IL-6 in the serum of test 2,3 and 4 groups were higher than those of test 1 group(P > 0.05). The contents of IgG and IL-2 in the serum of test 3 and 4 groups were 23.5%,14.8%,10.2% and 8.2% higher than those of test 1 group respectively(P < 0.05). In conclusion that adding 1.0% probiotics to the basic feed could improve the growth performance and immune index of mink.
In order to study the effects of probiotics on mink production performance and immune indexes,60 male minks aged 60 days were randomly divided into four groups with 3 replicates in each group,5 in each replicate. One group was fed with basic diet as blank control group. Two,three and four groups were fed with 0.5%,1.0% and 1.5% probiotics respectively in the basic diet for 60 days.The growth performance and immune index were measured at the end of the experiment.The results showed that:(1) The avergae daily feed intake(ADFI) of test 2,3 and 4 groups were higher than that of test 1 group(P > 0.05),the average daily gain(ADF) of test 3 and 4 groups were 38.8% and 31.8% higher than that of test 1 group(P < 0.05),feed/gain(F/G) were 18.6% and 16.2% lower than that of test 1 group respectively(P < 0.05).(2) The contents of IgM,Ig A and IL-6 in the serum of test 2,3 and 4 groups were higher than those of test 1 group(P > 0.05). The contents of IgG and IL-2 in the serum of test 3 and 4 groups were 23.5%,14.8%,10.2% and 8.2% higher than those of test 1 group respectively(P < 0.05). In conclusion that adding 1.0% probiotics to the basic feed could improve the growth performance and immune index of mink.
引文
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[3]乜豪，杨福合，张铁涛，等.饲粮中添加枯草芽孢杆菌或粪肠球菌对冬毛期水貂生长性能、营养物质消化率、氮代谢及毛皮品质的影响[J].动物营养学报，2018,30(5):1911~1919.
[4]裴跃明，邵强，吴桂龙，等.枯草芽孢杆菌制剂对产蛋后期蛋鸡生产性能、蛋品质、免疫及肠道菌群的影响[J].中国畜牧杂志，2016,52(7):61~65+70.
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[6]宋丽霞.沙葱多糖对肉羊免疫和抗氧化机能影响的研究[D].呼和浩特:内蒙古农业大学，2011.
[7]田浪，何彦侠，侯月娥，等.复合益生菌制剂对黄羽肉鸡生产性能、抗氧化指标及免疫功能的影响[J].中国兽医学报，2017,37(8):1540~1544+1582.
[8]张召兴.复方中草药超微粉防治鸡致病性大肠杆菌病的研究[D].秦皇岛:河北科技师范学院，2017.