Effect of cashew nut shell liquid on metabolic hydrogen flow on bovine rumen fermentation
Effect of cashew nut shell liquid on metabolic hydrogen flow on bovine rumen fermentation
复制标题
腰果壳液对牛瘤胃发酵代谢氢流量的影响
DOI：
10.1111/asj.12133
复制
发表时间：
2014
影响因子：
2
通讯作者：
M. Mochizuki and Y. Kobayashi
中科院分区：
文献类型：
--
作者：
Mitsumori;M.;O. Enishi;T. Shinkai;K. Higuchi;Y. Kobayashi;A. Takenaka;K. Nagashima;M. Mochizuki and Y. Kobayashi
通过分析短链脂肪酸(SCFA)和甲烷的代谢氢流量，研究了甲烷抑制剂腰果壳液对牛瘤胃发酵的影响。三头奶牛饲喂不含或不含CNSL颗粒的精料和干草日粮。使用仅与二氧化硅混合的CNSL颗粒(试验1)或与其他几种成分混合的CNSL颗粒(试验2)进行了两个试验。在呼吸室系统中测量甲烷产量，并监测能量平衡和养分消化率。代谢氢的估计流量表明，在试验1和试验2中，当向牛瘤胃中添加CNSL时，一部分代谢氢被用于生产氢气，并且大量流入甲烷和SCFA的生产。回归分析结果表明，供应CNSL对甲烷还原的影响与乙酸盐的显著减少(P<； 0.01)、丙酸盐和氢气的显著增加(P<； 0.01)相耦合。这些发现表明，CNSL在体内能够减少甲烷和乙酸盐的产生，增加氢气和丙酸的产生。
Effect of cashew nut shell liquid (CNSL), a methane inhibitor, on bovine rumen fermentation was investigated through analysis of the metabolic hydrogen flow estimated from concentrations of short‐chain fatty acids (SCFA) and methane. Three cows were fed a concentrate and hay diet without or with a CNSL‐containing pellet. Two trials were conducted using CNSL pellets blended with only silica (trial 1) or with several other ingredients (trial 2). Methane production was measured in a respiration chamber system, and energy balance and nutrient digestibility were monitored. The estimated flow of metabolic hydrogen demonstrated that a part of metabolic hydrogen was used for hydrogen gas production, and a large amount of it flowed into production of methane and SCFA in both trial 1 and 2, when CNSL was administered to the bovine rumen. The results obtained by regression analyses showed that the effect of CNSL supply on methane reduction was coupled with a significant (P< 0.01) decrease of acetate and a significant (P< 0.01) increase of propionate and hydrogen gas. These findings reveal that CNSL is able to reduce methane and acetate production, and to increase hydrogen gas and propionate productionin vivo.