PDF(Pubmed)
Abstract：
UNASSIGNED: Tannins are a group of phenolic compounds that can modify the rumen biohydrogenation (BH) of polyunsaturated fatty acids (PUFA), but to date results obtained have been inconsistent. This study therefore aims to conduct a meta-analysis of the scientific literature related to the effects of tannins on rumen BH and fermentation.
UNASSIGNED: A total of 28 articles were collected from various scientific databases, such as Scopus, Science Direct and Google Scholar, and the data were analysed using a random effects model and meta-regression for rumen BH. The publication bias on the main variables of rumen fermentation was assessed using a funnel plot and Egger\'s test.
UNASSIGNED: An increase in tannin levels significantly reduced methane production (p < 0.001) and the population of Butyrivibrio fibrisolvens (p < 0.05). Dietary tannins also decreased the SFA proportion (p < 0.001) and increased (p < 0.001) the rumen monounsaturated fatty acid (MUFA) and polyunsaturated fatty acid (PUFA) proportions. In additions, there were negative relationships between dietary tannin levels and BH rates of C18:2 n-6 and C18:3 n-3 (p < 0.05).
UNASSIGNED: Dietary tannins modulate the rumen fermentation profile, mitigate methane emissions, and inhibit rumen BH of PUFA.
UNASSIGNED: A total of 28 articles were collected from various scientific databases, such as Scopus, Science Direct and Google Scholar, and the data were analysed using a random effects model and meta-regression for rumen BH. The publication bias on the main variables of rumen fermentation was assessed using a funnel plot and Egger\'s test.
UNASSIGNED: An increase in tannin levels significantly reduced methane production (p < 0.001) and the population of Butyrivibrio fibrisolvens (p < 0.05). Dietary tannins also decreased the SFA proportion (p < 0.001) and increased (p < 0.001) the rumen monounsaturated fatty acid (MUFA) and polyunsaturated fatty acid (PUFA) proportions. In additions, there were negative relationships between dietary tannin levels and BH rates of C18:2 n-6 and C18:3 n-3 (p < 0.05).
UNASSIGNED: Dietary tannins modulate the rumen fermentation profile, mitigate methane emissions, and inhibit rumen BH of PUFA.
摘要：
■单宁是一组酚类化合物，可以修饰多不饱和脂肪酸（PUFA）的瘤胃生物氢化（BH），但迄今为止获得的结果不一致。因此，本研究旨在对与单宁对瘤胃BH和发酵的影响有关的科学文献进行荟萃分析。
■总共从各种科学数据库中收集了28篇文章，比如Scopus,科学直接和谷歌学者，并使用随机效应模型和瘤胃BH的荟萃回归分析数据。使用漏斗图和Egger检验评估了瘤胃发酵主要变量的发表偏倚。
■单宁水平的增加显着降低了甲烷的产生（p<0.001）和丁威弧菌的数量（p<0.05）。日粮单宁还降低了SFA的比例（p<0.001），并增加了瘤胃单不饱和脂肪酸（MUFA）和多不饱和脂肪酸（PUFA）的比例（p<0.001）。Inadditions,膳食单宁水平与C18：2n-6和C18：3n-3的BH率呈负相关（p<0.05）。
■膳食单宁调节瘤胃发酵曲线，减少甲烷排放，并抑制PUFA的瘤胃BH。
■总共从各种科学数据库中收集了28篇文章，比如Scopus,科学直接和谷歌学者，并使用随机效应模型和瘤胃BH的荟萃回归分析数据。使用漏斗图和Egger检验评估了瘤胃发酵主要变量的发表偏倚。
■单宁水平的增加显着降低了甲烷的产生（p<0.001）和丁威弧菌的数量（p<0.05）。日粮单宁还降低了SFA的比例（p<0.001），并增加了瘤胃单不饱和脂肪酸（MUFA）和多不饱和脂肪酸（PUFA）的比例（p<0.001）。Inadditions,膳食单宁水平与C18：2n-6和C18：3n-3的BH率呈负相关（p<0.05）。
■膳食单宁调节瘤胃发酵曲线，减少甲烷排放，并抑制PUFA的瘤胃BH。
