辣椒碱对育肥湖羊生长性能、瘤胃发酵指标、血清生化指标及瘤胃细菌区系的影响  

Effects of Capsaicin on Growth Performance,Rumen Fermentation Indices,Serum Biochemical Indices and Rumen Bacterial Flora of Fattening Hu Sheep

作　　者：高鑫 李秀芝 晏琦 王蕊张卉 韦德爽 胡德强 孔志伟 邹彩霞[1] 林波[1] GAO Xin;LI Xiuzhi;YAN Qi;WANG Ruizhanghui;WEI Deshuang;HU Deqiang;KONG Zhiwei;ZOU Caixia;LIN Bo(College of Animal Science and Technology,Guangxi University,Nanning 530003,China;Guangxi Anxin Animal Husbandry Co.,Ltd.,Dahua 530818,China)

机构地区：[1]广西大学动物科学技术学院,南宁530003 [2]广西安欣牧业有限公司,大化530818

出　　处：《动物营养学报》2024年第6期3823-3832,共10页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家现代农业产业技术体系广西肉牛肉羊创新团队科学养殖岗(nycytxgxcxtd-2021-09-03)。

摘　　要：本试验旨在探究辣椒碱对育肥湖羊生长性能、瘤胃发酵指标、血清生化指标及瘤胃细菌区系的影响。选用(90±3)日龄、体重(22±2)kg、体况优良的育肥湖羊公羊60只,随机分为2组,每组3个重复,每个重复10只羊。对照组(CON组)饲喂基础饲粮,辣椒碱组(CAP组)在基础饲粮中添加150 g/t辣椒碱。预试期10 d,正试期35 d。结果表明:1)CAP组的末重、平均日增重、干物质采食量均显著高于CON组(P<0.05),料重比显著低于CON组(P<0.05)。2)CAP组的瘤胃丁酸含量显著高于CON组(P<0.05)。3)CAP组的血清碱性磷酸酶(ALP)活性和丙二醛(MDA)含量显著低于CON组(P<0.05),血清免疫球蛋白M(IgM)含量显著高于CON组(P<0.05)。4)在门水平上,CAP组的瘤胃拟杆菌门(Bacteroidota)和螺旋菌门(Spirochaetota)相对丰度均显著高于CON组(P<0.05),瘤胃变形菌门(Proteobacteria)和蓝藻菌门(Cyanobacteria)相对丰度均显著低于CON组(P<0.05)。在属水平上,CAP组的瘤胃理研菌科RC9肠道群(Rikenellaceae_RC9_gut_group)、未明确F082科(norank_f_F082)、普雷沃氏菌科UCG-001(Prevotellaceae_UCG-001)、琥珀酸菌属(Succiniclasticum)相对丰度均显著高于CON组(P<0.05),瘤胃琥珀酸弧菌科UCG-001(Succinivibrionaceae_UCG-001)、未明确月形单细胞菌科(norank_f_Selenomonadaceae)相对丰度均显著低于CON组(P<0.05)。综上所述,饲粮中添加辣椒碱对育肥湖羊生长性能具有积极影响,能够提高免疫性能和抗氧化性能,增加瘤胃细菌多样性,增加瘤胃纤维分解菌、蛋白质分解菌等有益菌群的相对丰度,降低有害菌群的相对丰度,维护瘤胃健康。The aim of this experiment was to investigate the effects of capsaicin on growth performance,rumen fermentation indices,serum biochemical indices and rumen bacterial flora of fattening Hu sheep.Sixty fattening Hu sheep rams with(90±3)days of age,body weight of(22±2)kg and good body condition were selected and randomly divided into 2 groups with 3 replicates in each group and 10 rams in each replicate.The control group(CON group)was fed a basal diet,and the capsaicin group(CAP group)was fed the basal diet supplemented with 150 g/t capsaicin.The pre-experimental period lasted for 10 days,and the experimental period lasted for 35 days.The results showed as follows:1)the final weight,average daily gain and dry matter intake of CAP group were significantly higher than those of CON group(P<0.05),and the feed to gain ratio was significantly lower than that of CON group(P<0.05).2)The rumen butyric acid content of CAP group was significantly higher than that of CON group(P<0.05).3)The serum slkaline phosphatase(ALP)activity and malondialdehyde(MDA)content of CAP group were significantly lower than those of CON group(P<0.05),and the serum immunoglobulin M(IgM)content was significantly higher than that of CON group(P<0.05).4)At phylum level,the relative abundances of Bacteroidota and Spirochaetota in rumen of CAP group were significantly higher than those of CON group(P<0.05),and the relative abundances of Proteobacteria and Cyanobacteria in rumen were significantly lower than those of CON group(P<0.05).At genus level,the relative abundances of Rikenellaceae_RC9_gut_group,norank_f_F082,Prevotellaceae_UCG-001and Succiniclasticum in rumen of CAP group were significantly higher than those of CON group(P<0.05),and the relative abundances of Succinivibrionaceae_UCG-001 and norank_f_Selenomonadaceae in rumen were significantly lower than those of CON group(P<0.05).In conclusion,dietary capsaicin had positive effects on the growth performance of fattening Hu sheep,can improve the immune performance and antioxidant performance,in

关 键 词：辣椒碱 湖羊 生长性能 瘤胃发酵 瘤胃细菌区系 

分 类 号：S826[农业科学—畜牧学]