Feeding cashew nut shell liquid decreases methane production from feces by altering fecal bacterial and archaeal communities in Thai local ruminants.
Feeding cashew nut shell liquid decreases methane production from feces by altering fecal bacterial and archaeal communities in Thai local ruminants.
复制标题
饲喂腰果壳液可以改变泰国当地反刍动物粪便细菌和古菌群落，从而减少粪便中甲烷的产生。
DOI：
10.1111/asj.13569
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发表时间：
2021
影响因子：
2
通讯作者：
Y.
中科院分区：
文献类型：
--
作者：
Tamori;K.;Matsunaga;B.;Boonsaen;P.;Khongpradit;A.;Sawanon;S.,Nagashima;K.;Koike;S.;Kobayashi;Y.
研究了饲喂腰果壳液 (CNSL) 对泰国本土牛和沼泽水牛粪便发酵产物和微生物群的影响。每只动物中的四只饲喂稻草和含有不含 CNSL 的对照颗粒的浓缩饲料 4 周，然后再饲喂含有含有 CNSL 的颗粒的相同饲料 4 周，因此 CNSL 的施用水平为 4 g/100 kg 体重。在每个喂养期的最后 2 天收集粪便。从粪便中回收的 CNSL 烷基酚 (16%–28%) 与饮食中的比例相似，表明大多数功能性漆树酸并未在整个消化道中被选择性去除。体外粪便中产生的气体，特别是甲烷，随着 CNSL 的喂养而减少。饲喂 CNSL 后，粪便中乙酸盐的比例下降，而丙酸盐的比例增加，但不影响总短链脂肪酸浓度。 CNSL 喂养改变了粪便微生物群落，特别是在沼泽水牛中，表现出密螺旋体、未分类瘤胃球菌科和甲烷球菌科的频率下降。这些结果表明，CNSL 饲喂不仅可以改变瘤胃发酵，还可以通过调节微生物群落来改变后肠发酵，从而潜在地减少反刍动物粪便中的甲烷排放。
The effect of feeding cashew nut shell liquid (CNSL) on fecal fermentation products and microbiota was investigated in Thai native cattle and swamp buffaloes. Four of each animal were fed rice straw and concentrate diet with control pellets without CNSL for 4 weeks, followed by the same diet with pellets containing CNSL for another 4 weeks, so that CNSL was administered at a level of 4 g/100 kg body weight. Feces were collected the last 2 days in each feeding period. CNSL alkyl phenols were recovered from feces (16%–28%) in a similar proportion to those in the diet, indicating that most functional anacardic acid was not selectively removed throughout the digestive tract. In vitro production of gas from feces, particularly methane, decreased with CNSL feeding. The proportion of acetate in feces decreased with CNSL feeding, whereas that of propionate increased, without affecting total short‐chain fatty acid concentration. CNSL feeding changed fecal microbial community, particularly in swamp buffaloes, which exhibited decreases in the frequencies ofTreponema, unclassifiedRuminococcaceae, andMethanomassiliicoccaceae. These results suggest that CNSL feeding alters not only rumen fermentation but also hindgut fermentation via modulation of the microbial community, thereby potentially attenuating methane emission from the feces of ruminant animals.