动物营养学报Issue(2)：515-523,9.DOI:10.3969/j.issn.1006-267x.2016.02.025
地衣芽孢杆菌对肉羊甲烷排放及消化代谢的影响
Effects of Baclicus lincheniformis on Methane Emission, Digestion and Metabolism of Mutton Sheep
摘要
Abstract
This study was conducted to investigate the effects of dietary supplementation of different levels of Baclicus lincheniformis on methane emission, digestion and metabolism of mutton sheep, with an aim to pro-vide reference of probiotics for reducing methane emission and improving energy efficiency.Twenty-four healthy Dorper ( ) ×thin-tailed Han (♀) crossbred adult wethers ( F1 ) with an average body weight of ( 45.00 ±1.96) kg were randomly divided into 4 groups with 6 sheep in each group and each wether as one rep-licate by an one-factor design, and fed one of the following 4 diets:a basal diet ( control group) and the basal diet supplemented with 2.4×108(low dose group), 2.4×109(medium dose group) and 2.4×1010 CFU/d (high dose group) Baclicus lincheniformis per lamb.The experiment lasted for 20 days, including an 8-day adapta-tion period, and for the following 12 days, methane emission was measured using open-circuit respirometry system and the feces and urine were collected for measuring digestion and metabolism indices.The results showed as follows:1) compared with control group, the supplementation of Baclicus lincheniformis with 2.4× 108 and 2.4×109 CFU/d significantly reduced methane emission on the basis of dry matter intake and metabolic body weight [L/(kg W0.75· kg DMI)] by 5.18%and 9.33%(P<0.05), respectively.2) Compared with control group, the supplementation of Baclicus lincheniformis significantly increased the apparent digestibility of dry matter, organic matter, neutral detergent fibre, acid detergent fibre ( ADF, except low dose group) and nitrogen, and retained nitrogen ( P<0.05) , and significantly improved dietary digestible and metabolizable en-ergy ( P<0.05) .In conclusion, dietary supplementation of Baclicus lincheniformis can effectively reduce meth-ane emission of sheep, and improve the digestibility of nutrients, all together improve utilization efficiency of dietary energy.关键词
微生态制剂/地衣芽孢杆菌/甲烷/消化代谢/肉羊Key words
probiotic/Baclicus lincheniformis/methane/digestion and metabolism/mutton sheep分类
农业科技引用本文复制引用
肖怡,陶大勇,赵明明,赵江波,马涛,屠焰,刁其玉..地衣芽孢杆菌对肉羊甲烷排放及消化代谢的影响[J].动物营养学报,2016,(2):515-523,9.基金项目
国家自然基金“绵羊甲烷排放的粪便反射特征光谱研究”（41475126）；国家科技支撑计划“农区肉羊健康养殖模式构建与示范” （）
