发酵饲料桑对育肥猪生长性能、营养成分及免疫功能的影响  

Effects of fermented mulberry feed on the growth performance,nutritional components,and immune function of fattening pigs

作　　者：郝肖赟 刘润清 HAO Xiaoyun;LIU Runqing(Convenience Service Center of Wujinshan Town,Yuci District,Jinzhong City,Jinzhong,Shanxi Province 030600,China)

机构地区：[1]晋中市榆次区乌金山镇便民服务中心,山西晋中030600

出　　处：《中国饲料》2024年第18期81-84,共4页China Feed

摘　　要：文章旨在研究发酵饲料桑对育肥猪生长性能、营养成分及免疫功能的影响,试验选用90头平均体重为(60±3.59)kg的杜×长×大三元杂交育肥猪为研究对象,随机分为5组,每组3个重复,每个重复6头猪。各处理中发酵桑粉的添加量分别为0%、4%、8%、12%和16%,进行为期50 d的养殖试验。结果表明,发酵饲料桑的添加量为12%及以下时,与对照组相比,育肥猪的末重、平均日采食量、平均日增重和料肉比无明显差异(P>0.05)。不同添加水平的发酵饲料桑对育肥猪猪肉的水分、粗蛋白和肌肉脂肪含量无显著影响(P>0.05),随着添加水平的升高,猪肉粗蛋白含量略微上升,肌肉脂肪含量略微下降。添加12%发酵饲料桑时,可以显著降低猪肉饱和脂肪酸的比例,显著提高猪肉不饱和脂肪酸的比例(P<0.05)。不同添加水平的发酵饲料桑对猪肉多不饱和脂肪酸的比例无显著影响(P>0.05)。添加12%的发酵饲料桑时,可以显著降低血清IgG、IgM和IgA水平(P<0.05)。不同添加量的发酵饲料桑对育肥猪血清免疫细胞因子水平无显著影响(P>0.05)。本研究表明,基础饲料中添加12%的发酵饲料桑对育肥猪的平均日采食量、平均日增重和料肉比无显著负面影响,并在一定程度上能改善猪肉营养品质,显著提高育肥猪血清中免疫球蛋白的水平,提高免疫功能。To clarify the influences of fermented mulberry feed to the growth performance,nutritional composition,and immune function of fattening pigs,a hybrid fattening pig with an average weight of(60±3.59)kg was selected.Five treatments were set up with 3 replicates per group and 6 pigs per replicate,and the addition amounts of fermented mulberry powder in each treatment were 0,4%,8%,12%,and 16%,respectively.A 50 day breeding experiment was conducted.The results showed that when the addition amount of fermented feed mulberry was 12%or less,there was no significant difference in the final weight,average daily feed intake,average daily weight gain,and feed to meat ratio of fattening pigs compared to the control group(P>0.05).Different levels of fermented feed mulberry had no significant effect on the water content,crude protein content,and intramuscular fat content of fattening pig pork(P>0.05),although the crude protein content slightly increased and intramuscular fat content slightly decreased with the increase of fermented feed mulberry added.Adding 12%fermented feed mulberry can significantly reduce the proportion of saturated fatty acids in pork and significantly increase the proportion of unsaturated fatty acids in pork(P<0.05).The proportion of polyunsaturated fatty acids in pork was not significantly affected by different levels of fermented feed mulberry(P>0.05).Adding 12%fermented feed mulberry can significantly reduce the levels of serum IgG,IgM and IgA(P<0.05).Different amounts of fermented feed mulberry had no significant effect on the serum immune cytokine levels of fattening pigs(P>0.05).This study indicates that adding 12%fermented feed mulberry to the basic feed has no significant negative effects on the average daily feed intake,average daily weight gain,and feed to meat ratio of fattening pigs.It can improve the quality of pork to a certain extent,significantly increase the level of immunoglobulin in the serum of fattening pigs,and enhance immune function.

关 键 词：三元猪 发酵饲料桑 生长性能 营养成分 免疫功能 

分 类 号：S816.6[农业科学—饲料科学]