中国饲料Issue(17)：51-59,9.DOI:10.15906/j.cnki.cn11-2975/s.2025030027-08
灌注5-羟基色氨酸和饲喂频率对细毛羊肠道微生物的影响
Effects of 5-hydroxytryptophan and feeding frequency on intestinal microorganisms of fine wool sheep
摘要
Abstract
The experiment was conducted to investigate the effects of 5-hydroxytryptophan(5-HTP)infusion and feeding frequency on intestinal microorganisms of fine wool sheep.Twenty-four healthy Erdos fine wool sheep with similar body condition were selected.A 2×2 completely randomized trial design was adopted,with 5-HTP perfusion as the first factor.Control group and 0.178 mg/kg BW 5-HTP perfusion group were set up.The second factor was feeding frequency.There were four experimental groups with 6 replicates in each group,two feeding groups and five feeding groups.The pre-feeding period was 15 days and the normal feeding period was 30 days.The results showed that infusion of 5-HTP could significantly decrease Spirochaetes and significantly increase the relative abundance of Fibrobacteres at rumen level(P<0.05).The relative abundance of Prevotella_1 at rumen level and Ruminococcaceae_NK4A214 at duodenum level were significantly increased by 5-HTP infusion and increasing feeding frequency(P<0.05).Infusion of 5-HTP could significantly increase the relative abundance of Christensenellaceae_R-7_group at rumen level(P<0.05).Injecting 5-HTP could significantly increase the relative abundance of Actinobacteria at duodenal portal level(P<0.05).Injecting 5-HTP and increasing feeding frequency significantly increased the relative abundance of Firmicutes at ileal level(P<0.05).In conclusion,5-HTP infusion can significantly increase the abundance of beneficial bacteria in the intestine of fine wool sheep and improve the balance of intestinal flora.关键词
细毛羊/5-羟基色氨酸/饲喂频率/肠道微生物Key words
fine wool sheep/5-hydroxytryptophan/feeding frequency/gut microorganism分类
农业科技引用本文复制引用
李庆丰,诺民,孙余卓,孙海洲,金鹿,陈鹏,张崇志,张春华,李胜利,王博,付乐,杨鼎..灌注5-羟基色氨酸和饲喂频率对细毛羊肠道微生物的影响[J].中国饲料,2026,(17):51-59,9.基金项目
"英才兴蒙"青年拔尖人才专项 （）
内蒙古自治区重点研发与成果转化项目(2022YFHH0097) （2022YFHH0097）
鄂尔多斯市科技计划项目(2022YY021) （2022YY021）
国家重点研发计划项目(2022YFD1301102) （2022YFD1301102）
国家绒毛用羊产业技术体系(CARS-39-11) （CARS-39-11）
"英才兴蒙"工程二层次团队(2025TEL18) （2025TEL18）
2024年内蒙古自治区草食动物营养科学重点实验室(2025KYPT0080) （2025KYPT0080）
农业农村部草食家畜健康养殖与畜产品品质调控重点实验室(部省共建) （部省共建）
