摘要
试验分析玉米DDGS对肥育猪生长性能、免疫功能及胴体性状的影响。试验将96头体重90 kg左右的育肥猪随机分为4组,CON组饲喂常规日粮,试验Ⅰ、Ⅱ、Ⅲ组等氮添加8%、16%、24%玉米DDGS,每组3个重复,每个重复8头。试验为期30 d。结果:(1)试验Ⅲ组平均日增重比CON组显著降低8.17%(P<0.05),料重比比CON组显著提高8.86%(P<0.05)。(2)试验Ⅱ组血清免疫球蛋白G含量比CON组显著降低(P<0.05),谷草转氨酶活性比CON组显著提高(P<0.05)。试验Ⅲ组血清免疫球蛋白G、免疫球蛋白M含量比CON组显著降低(P<0.05),谷草转氨酶活性比CON组显著提高(P<0.05)。(3)试验Ⅲ组胴体重、屠宰率、眼肌面积比CON组显著降低(P<0.05)。综上所述,在本试验条件下,玉米DDGS不超过16%,不会对育肥猪生长性能和胴体性状产生显著影响,但要注意免疫功能下降问题。
This study investigated the influence of corn DDGS on growth performance,immune function,and carcass characteristics in fattening pigs.A total of 96 fattening pigs with an average weight of approximately 90 kg were randomly allocated into four groups.The CON group was provided a standard diet,whereas experimentalⅠ,Ⅱ,andⅢgroups received diets containing 8%,16%,and 24%corn DDGS,respectively.Each group had 3 replicates,with 8 pigs per replicate.The trial lasted for 30 days.Results:(1)ExperimentalⅢGroup's daily weight gain was significantly reduced by 8.17%compared to the CON group(P<0.05),and its feed conversion ratio increased significantly by 8.86%(P<0.05).(2)ExperimentalⅡgroup exhibited significantly lower serum immunoglobulin G levels than the CON group(P<0.05),along with higher aspartate aminotransferase activity(P<0.05).ExperimentalⅢgroup showed significantly decreased serum immunoglobulin G and immunoglobulin M concentrations compared to the CON group(P<0.05),as well as elevated aspartate aminotransferase activity(P<0.05).(3)Carcass weight,slaughter rate,and eye muscle area in experimentalⅢgroup were significantly lower than those in the CON group(P<0.05).In summary,incorporating up to 16%corn DDGS does not substantially affect the growth or carcass characteristics of fattening pigs;however,potential declines in immune function should be monitored.
作者
蒋珊珊
狄和双
孟婷
王兴
曹云
JIANG Shanshan;DI Heshuang;MENG Ting;WANG Xing;CAO Yun(Jiangsu Vocational College of Animal Husbandry and Veterinary Medicine,Taizhou,Jiangsu Province 225300,China;Kunshan Fourth Animal Disease Control Station,Kunshan,Jiangsu Province 215300,China)
出处
《中国饲料》
北大核心
2025年第14期117-120,共4页
China Feed
关键词
玉米DDGS
肥育猪
生长性能
免疫功能
胴体性状
corn DDGS
fattening pigs
growth performance
immune function
carcass characteristics
