半胱胺螯合锌对育肥猪免疫性能、抗氧化能力、血清生化指标及肠道微生物的影响  

Effects of Cysteamine Chelated Zinc on Immunity Function,Antioxidant Capacity,Serum Biochemical Indexes and Intestinal Microflora of Finishing Pigs

作　　者：于光辉[1] 王煜琦 刘正方 宋俊霖 姜建阳[1] 宋春阳[1] YU Guanghui;WANG Yuqi;LIU Zhengfang;SONG Junlin;JIANG Jianyang;SONG Chunyang(College of Animal Science and Technology,Qingdao Agricultural University,Qingdao 266109,China;Laiyang Municipal Bureau of Agriculture and Rural Affairs,Yantai 265200,China)

机构地区：[1]青岛农业大学动物科技学院,青岛266109 [2]莱阳市农业农村局,烟台265200

出　　处：《动物营养学报》2020年第4期1891-1898,共8页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：山东省现代农业产业技术体系生猪创新团队项目(SDAIT-08-08)。

摘　　要：本试验旨在研究饲粮中不同添加量的半胱胺螯合锌(Zn-CS)对育肥猪免疫性能、抗氧化能力、血清生化指标及肠道微生物的影响。选取90头体重为(64.67±1.15)kg的健康育肥猪,随机分为5组,每组3个重复,每个重复(圈)6头。对照组饲喂基础饲粮,试验组分为Ⅰ、Ⅱ、Ⅲ、Ⅳ组,分别饲喂在基础饲粮中添加60、90、120、150 mg/kg Zn-CS的试验饲粮。结果表明:1)与对照组相比,Ⅰ、Ⅱ组血清免疫球蛋白A(IgA)含量显著提高(P<0.05)。2)与对照组相比,Ⅲ、Ⅳ组血清丙二醛含量显著降低(P<0.05),Ⅱ、Ⅲ、Ⅳ组血清总抗氧化能力显著提高(P<0.05)。3)与对照组相比,Ⅱ组血清生长激素含量显著提高(P<0.05),Ⅱ组血清生长抑素含量显著降低(P<0.05),Ⅱ、Ⅲ、Ⅳ组血清胰岛素含量显著提高(P<0.05)。4)各组在门水平上相对丰度超过1%的优势菌门有厚壁菌门、变形菌门、拟杆菌门,各组在属水平上相对丰度超过1%的优势菌属有梭菌属、肠杆菌属、Romboutsia、Turicibacter、Terrisporobacter、放线菌属。由此可见,饲粮中添加Zn-CS能够提高育肥猪免疫性能与抗氧化能力。在本试验条件下,建议Zn-CS在育肥猪饲粮中的适宜添加量为120 mg/kg。This experiment was conducted to investigate the effects of the supplemental levels of cysteamine chelated zinc(Zn-CS)on the immunity function,antioxidant capacity,serum biochemical indexes and intestinal microflora of finishing pigs.A total of 90 healthy finishing pigs with an average body weight of(64.67±1.15)kg were randomly allocated to 5 groups with 3 replicates of 6 pigs.The pigs in control group were fed a basal diet,and those in the experimental groups were divided into groupsⅠ,Ⅱ,ⅢandⅣ,and fed the basal diet with different supplemental levels of Zn-CS(60,90,120 and 150 mg/kg).The results showed as follows:1)compared with the control group,the serum immune globulin A(IgA)content in groupsⅠandⅡsignificantly increased(P<0.05).2)Compared with the control group,the serum malondialdehyde content in groupsⅢandⅣsignificantly decreased(P<0.05),and the serum total antioxidant capacity in groupsⅡ,ⅢandⅣsignificantly increased(P<0.05).3)Compared with the control group,the serum growth hormone content in groupⅡsignificantly increased(P<0.05),the serum somatostatin content in groupⅡsignificantly decreased(P<0.05),and the serum insulin content in groupsⅡ,ⅢandⅣsignificantly increased(P<0.05).4)At the level of phylum,the dominant flora with relative abundance of more than 1%of each group was Firmicutes,Proteobacteria and Bacteroidetes.At the level of genus,the dominant flora with relative abundance of more than 1%of each group was Clostridium,Enterobacteriaceae,Romboutsia,Turicion,Terrisporobacter and Actinobacillus.In conclusion,dietary supplemented with Zn-CS can promote the immunity function and antioxidant capacity.Under the conditions of the present experiment,the optimal supplemental level of Zn-CS in the finishing pigs'diet is 120 mg/kg.

关 键 词：半胱胺螯合锌 育肥猪 免疫性能 抗氧化能力 血清生化指标 肠道微生物 

分 类 号：S828[农业科学—畜牧学]