摘要
本研究旨在评估肥育猪日粮中添加柠檬酸对其生长性能和抗氧化功能的影响。试验将144头体重和健康度接近的杜长大肥育猪随机分为3组,分别为对照组、试验1组和试验2组,每组8个重复,每个重复6头猪。对照组饲喂常规日粮,试验1组和试验2组分别在常规日粮中添加0.02%和0.01%柠檬酸,试验为期90 d。结果表明,肥育猪日粮中添加0.02%柠檬酸能显著提高日增重(ADG)和饲料报酬(F/G)(P<0.05),显著提高血清、十二指肠、空肠、回肠黏膜和背最长肌的总抗氧化能力(T-AOC)、超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-Px)含量(P<0.05),显著提高血清、回肠黏膜和背最长肌的过氧化氢酶(CAT),显著降低十二指肠、空肠、回肠黏膜的丙二醛(MDA)含量(P<0.05);添加0.01%柠檬酸能显著提高空肠黏膜的T-AOC、SOD含量(P<0.05),显著降低回肠黏膜的MDA含量(P<0.05)。结论:肥育猪日粮中添加柠檬酸能提高肥育猪生长性能和抗氧化功能。
The aim of this study was to evaluate the effects of dietary citric acid on growth performance and antioxidant function of fattening pigs.A total of 144 Duroc-Landrace-Yorkshire fattening pigs with similar body weight and health were randomly divided into 3 groups:control group,experiment group 1 and experiment group 2,with 8 replicates in each group and 6 pigs in each replicate.The control group was fed a regular diet,and the experimental groups 1 and 2 were fed the regular diet supplemented with 0.02%and 0.01%citric acid respectively.The experiment lasted for 90 days.Dietary supplementation of 0.02%citric acid of fattening pigs can significantly increased daily gain(ADG)and price of feed(F/G)(P<0.05),and significantly increased the contents of total antioxidant capacity(T-AOC),superoxide dismutase(SOD)and glutathione peroxidase(GSH-Px)in serum,duodenum,jejunum,ileum mucosa and longissimus dorsi muscle(P<0.05).Catalase(CAT)in serum,ileum mucosa and longissimus dorsi muscle was significantly increased(P<0.05),and malondialdehyde(MDA)content in duodenum,jejunum and ileum mucosa was significantly decreased(P<0.05).Supplementation of 0.01%citric acid significantly increased the contents of T-AOC and SOD in jejunum mucosa,and significantly decreased the content of MDA in ileum mucosa(P<0.05).Conclusion:The supplementation of citric acid in diets of fattening pigs can improve the growth performance and antioxidant function of fattening pigs.
作者
岳玉秀
岳玉妍
YUE Yuxiu;YUE Yuyan(Jilin Engineering Vocational College,Siping,Jilin Province 136001,China)
出处
《中国饲料》
北大核心
2022年第18期55-58,共4页
China Feed
关键词
柠檬酸
肥育猪
生长性能
抗氧化功能
citric acid
fattening pigs
growth performance
antioxidant function
