Rapeseed provides multi-products as human food and animal feed especially the oil and meal. Rapeseed oil and meal after extraction are nutritious and have been used in animal feeding. This study aimed at studying the effect of rapeseed pod meal as the replacement of concentrate (RPM) on in vitro gas and fermentation characteristics. Dietary treatments were imposed in a 2 × 6 factorial arrangement according to a completely randomized design (CRD). The first factor was two ratios of roughage to concentrate (R:C at 60:40, and 40:60) and the second factor was six levels of RPM at 0, 20, 40, 60, 80, and 100% of dietary substrate. The results revealed that the R:C ratio and RPM increased kinetics of gas production, in vitro degradability and improved rumen fermentation (P < 0.001). Ratio of R:C influenced (P < 0.05) on both protozoal population and methane production, while level of RPR did not. Both factors had influenced (P < 0.01) a, a + b, and c, as well as total gas production; nevertheless, there were no interactions (P > 0.05). Interestingly, both factors have greatly impacted on TVFA, C3 (P < 0.01) and tended to reduce methane production as level of RPM replacement increased. In conclusion, RPM improved rumen fermentation and increased in vitro DM degradability, hence is potential for replacement of concentrate and effectively used for ruminant feeding.

中文翻译：

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油菜籽豆粕可以代替精矿并提高饲料在体外气体产生和发酵特性方面的利用率。

油菜籽提供多种产品作为人类食品和动物饲料，尤其是油脂。提取后的菜籽油和粕粉营养丰富，已用于动物饲养。这项研究旨在研究油菜籽粉替代浓缩物（RPM）对体外气体和发酵特性的影响。根据完全随机设计（CRD）以2×6析因布置方式进行饮食治疗。第一个因素是粗饲料与精矿的两个比率（R：C在60:40和40:60），第二个因素是在饮食底物的0、20、40、60、80和100％时的六种RPM水平。结果显示，R：C比和RPM增加了产气动力学，体外降解性和瘤胃发酵改善（P <0.001）。R：C的比率受影响（P <0。05）既是原生动物种群，也是甲烷产量，而RPR却没有。这两个因素都影响了（P <0.01）a，a + b和c以及总气体产量。但是，没有相互作用（P> 0.05）。有趣的是，这两个因素都极大地影响了TVFA，C3（P <0.01），并随着RPM替代水平的提高而降低了甲烷的产生。总之，RPM改善了瘤胃发酵并提高了体外DM降解能力，因此有可能替代浓缩物并有效地用于反刍动物的饲养。01），并且随着RPM替代水平的提高，甲烷排放量往往会减少。总之，RPM改善了瘤胃发酵并提高了体外DM降解能力，因此有可能替代浓缩物并有效地用于反刍动物的饲养。01），并且随着RPM替代水平的提高，甲烷排放量往往会减少。总之，RPM改善了瘤胃发酵并提高了体外DM降解能力，因此有可能替代浓缩物并有效地用于反刍动物的饲养。