草业学报2017，Vol.26Issue(6)：210-216,7.DOI:10.11686/cyxb2016305
高精料日粮对山羊瘤胃和盲肠发酵及生物胺生成与吸收的影响研究
Effects of high concentrate diet on microbial fermentation and biogenic amine formation and absorption in the rumen and cecum of goats
摘要
Abstract
This study was conducted to evaluate the effect of high concentrate diets on ruminal and cecal fermentation and biogenic amines production and absorption in the gastrointestinal tract of goats.Six goats fitted with permanent rumen fistula were randomly divided into low concentrate group and high concentrate groups for an experiment that lasted 24 days.The results showed that,compared with the low concentrate group,high concentrate diets increased the concentrations of total volatile fatty acid,acetate,propionate,butyrate,total branched chain fatty acid,tyramine,putrescine,histamine,methylamine and tryptamine (P＜0.05).Ruminal pH and the ratio of acetate to propionate decreased (P＜0.05).A high concentrate diet also improved the levels of acetate,propionate,total volatile fatty acid and the five biogenic amines in cecal digesta (P＜0.05).Compared with the control group,the concentrations of biogenie amines contents were higher in the high concentrate group in rumen and cecal vein blood (P＜0.05).Correlation analysis revealed that the biogenic amines contents of tyramine,putrescine,methylamine and tryptamine in rumen fluid and rumen vein blood were significantly positively correlated (P＜0.05).In addition,significant correlations of the five amines contents were observed between cecal digesta and cecal vein blood (P＜0.05).These results show that high concentrate diets significantly affect ruminal and cecal fermentation,indicating that high concentrate feeding might increase ruminal and cecal epithelial permeability and thus stimulate the absorption of biogenic amines from rumen and cecum.关键词
高精料日粮/山羊/生物胺/瘤胃/盲肠Key words
high concentrate diet/goats/biogenic amine/rumen/cecum引用本文复制引用
李弘伟,刘军花,霍文捷,朱伟云,毛胜勇..高精料日粮对山羊瘤胃和盲肠发酵及生物胺生成与吸收的影响研究[J].草业学报,2017,26(6):210-216,7.基金项目
国家自然科学基金项目(31372339)资助. （31372339）
