中国畜牧杂志2017，Vol.53Issue(4)：82-87,92,7.DOI:10.19556/j.0258-7033.2017-04-082
体外产气法评定加拿大进口与国产双低菜籽粕瘤胃发酵与降解率差异
Evaluation of Rumen Fermentation and Degradability of Canadian Canola Meal and Chinese Rapeseed Meal Using in vitro Gas Production Method
摘要
Abstract
Soybean meal (SBM) was used as a reference feed,and rumen fermentation and degradation difference of Canadian canola meal (Ca-RSM) and Chinese double-low rapeseed meal (Ch-RSM) were compared using an in vitro gas production method.The three feed meals were incubated for 2,6,12,16,24,30,36,48 h with rumen fluid collected from dairy cows after morning feeding,and cumulative gas production,rumen fermentation and degradation kinetics of three meals were measured.The results showed that similar gas production trend against incubation time occurred for these three meals.The cumulative gas production and potential gas production (a+b) were all lower in Ch-RSM than both SBM and Ca-RSM (P＜0.05).The rapid fraction of gas production differed among three meals (P＜0.05).Final pH and NH3-N concentration in culture fluids were affected by feed type and fermentation time and presented interaction responses (P＜0.01).Volatile fatty acid concentration against the incubation time differed among three meals (P＜0.01).Effective degradable NDF and effective degradable DM ranked SBM ＞ Ca-RSM ＞ Ch-RSM (P＜0.05).关键词
豆粕/加拿大双低菜籽粕/国产双低菜籽粕/体外产气法Key words
Soybean meal/Canadian canola meal/Chinese double-low rapeseed meal/In vitro gas production method分类
农业科技引用本文复制引用
许文斌,杨金山,李欣新,林聪,张幸怡,张永根..体外产气法评定加拿大进口与国产双低菜籽粕瘤胃发酵与降解率差异[J].中国畜牧杂志,2017,53(4):82-87,92,7.基金项目
国家奶牛产业体系(CARS-37) （CARS-37）
