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首页> 外文期刊>Canadian Journal of Animal Science >Effects of cinnamaldehyde, eugenol, and capsicum on fermentation of a corn-based dairy ration in continuous culture.
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Effects of cinnamaldehyde, eugenol, and capsicum on fermentation of a corn-based dairy ration in continuous culture.

机译：肉桂醛，丁子香酚和辣椒素对连续培养中玉米基奶定量发酵的影响。

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摘要

A 12-unit continuous culture system was used in a complete randomized design to study the effects of no oil (CON), cinnamaldehyde oil (CIN), eugenol oil (EUG), and capsicum oil(CAP) (500 mg L-1 d-1) with a 45:55 forage:concentrate ratio (dry matter basis) ration on rumen fermentation. Dry matter digestibility did not differ among treatments. Organic matter digestibility tended to decrease with CIN. Digestibility of neutral detergent and acid detergent fiber tended to be highest with CAP. Crude protein digestibility and bacterialnitrogen flow was depressed with CIN and EUG. CIN tended to decrease microbial protein synthesis and increase effluent ammonia nitrogen. Total volatile fatty acid production did not differ among treatments; however, isovalerate production tended to be highest with CAP. CIN and EUG had higher mean pH, spent fewer hours per day and had smaller area under the curve at pH<5.6 and 5.8. CAP had smaller area under the curve at pH<5.6. Supplementation with these oils at the current dose had limited effects on rumen fermentation, with the majority of effects observed being mainly attributable to the very high dosage of oil used.
机译：在完全随机设计中使用了12个单位的连续培养系统，以研究无油（CON），肉桂醛油（CIN），丁香酚油（EUG）和辣椒油（CAP）（500 mg L （-1 d -1 ）与瘤胃发酵的精料：精料比（以干物质计）为45:55。各处理之间干物质消化率没有差异。有机物的消化率倾向于随着CIN降低。 CAP可使中性洗涤剂和酸性洗涤剂纤维的消化率最高。 CIN和EUG抑制了粗蛋白的消化率和细菌氮流量。 CIN倾向于减少微生物蛋白质的合成并增加废水中的氨氮。各处理中挥发性脂肪酸的总产量没有差异;但是，CAP的异戊酸酯产量往往最高。 CIN和EUG的平均pH值较高，每天花费较少的时间，并且在pH <5.6和5.8时曲线下面积较小。在pH <5.6时，CAP曲线下面积较小。以当前剂量补充这些油对瘤胃发酵的作用有限，观察到的大多数作用主要归因于所用油的剂量很高。

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