酵母培养物对育肥猪生产性能、营养物质消化率和血清免疫功能的影响  

Effects of yeast culture on production performance,nutrient digestibility,and serum immune function of fattening pigs

作　　者：李卫华 马双昆 石永杰 LI Weihua;MA Shuangkun;SHI Yongjie(Anyang Animal Husbandry and Veterinary Service Center,Anyang,Henan Province 455000,China;Anyang Animal Quarantine Station,Anyang,Henan Province 455000,China)

机构地区：[1]安阳市畜牧兽医服务中心,河南安阳455000 [2]安阳市动物检疫站,河南安阳455000

出　　处：《中国饲料》2024年第4期69-72,共4页China Feed

基　　金：安阳市2023年科技攻关项目(2023C01NY031)。

摘　　要：文章旨在研究酵母培养物对育肥猪生产性能、营养物质消化率和血清免疫功能的影响。试验将160头平均体重为(60.24±0.89)kg的杜长大育肥猪随机分为4组,每组5个重复,每个重复8头。试验为期92d,其中预饲期5d,正试期87d。分别向基础日粮中添加0、5、10和15g/kg酵母培养物作为试验日粮。试验结果表明,日粮添加10和15g/kg的酵母培养物可显著提高育肥猪的终末体重、平均日增重和平均日采食量(P <0.05);日粮添加10和15g/kg的酵母培养物可显著降低育肥猪的料重比(P <0.05)。日粮添加10和15g/kg的酵母培养物可显著提高育肥猪对粗蛋白质和粗纤维的表观消化率(P <0.05);日粮添加酵母培养物对育肥猪干物质、粗脂肪、能量和有机物表观消化率无显著影响(P> 0.05)。日粮添加10和15g/kg的酵母培养物可显著提高育肥猪血清免疫球蛋白A、M和G的含量(P <0.05);对育肥猪血清IL-1β、IL-6和IL-10含量无显著影响(P> 0.05)。总之,本试验结果表明,育肥猪日粮酵母培养物最适添加量为10g/kg。The aim of this study is to investigate the effects of yeast culture on the production performance,nutrient digestibility,and serum immune function of fattening pigs.160 Duroc fattening pigs with an average body weight of(60.24±0.89)kg were randomly divided into 4 groups,with 5 replicates in each group and 8 pigs in each replicate.The trial lasted for a total of 92 days,with a pre trial period of 5 days and a formal trial period of 87 days.Add 0,5,10,and 15 g/kg of yeast culture to the basic diet as the experimental diet.The experimental results showed that the addition of 10 and 15 g/kg yeast culture significantly increased the final body weight,average daily gain,and average daily feed intake of finishing pigs(P<0.05);Adding 10 and 15 g/kg of yeast culture to the diet significantly reduced the feed to weight ratio of fattening pigs(P<0.05).The addition of 10 and 15 g/kg yeast culture to the diet significantly increased the apparent digestibility of crude protein and crude fiber in fattening pigs(P<0.05);The addition of yeast culture to the diet did not significantly affect the apparent digestibility of dry matter,crude fat,energy,and organic matter in fattening pigs(P>0.05).The addition of 10 and 15 g/kg yeast culture significantly increased the levels of serum immunoglobulin A,M,and G in finishing pigs(P<0.05);and had no significant effect on the contents of Serum IL-1β、L-6 and IL-10(P>0.05).In summary,the results of this experiment indicate that the optimal amount of yeast culture added to the diet of fattening pigs is 10 g/kg.

关 键 词：酵母培养物 育肥猪 生长性能 表观消化率 血清免疫指标 

分 类 号：S828[农业科学—畜牧学]