High-potency white-rot fungal strains and duration of fermentation to optimize corn straw as ruminant feed
文献类型： 外文期刊
第一作者： Zhao, Xueli
作者： Zhao, Xueli;Wang, Fei;Fang, Yi;Zhou, Daowei;Wang, Lixia;Zhong, Rongzhen;Zhao, Xueli;Wang, Shuiping;Wu, Duanqin
作者机构：
关键词： Corn straw; Feed digestibility; In vitro gas production; Lignin; White-rot fungi
期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）
ISSN： 0960-8524
年卷期： 2020 年 312 卷
页码：
收录情况： SCI
摘要： Five white-rot fungi Pleurotus ostreatus, Lentinus edodes, Hericium erinaceus, Pleurotus eryngii and Flammulina filiformis were studied (solid-state incubation and in vitro gas production) to determine lignin degradation and optimal duration of fermentation of corn straw. All fungi significantly decreased lignin, with optimal reductions after 28 d. Although cellulose also decreased, L. edodes and P. eryngii minimized these losses. In intro dry matter digestibility, total volatile fatty acid concentration and total gas production of fermented corn straw decreased (P < 0.001) as fermentation was prolonged, with improved rumen fermentability for all fungal treatments except F. filiformis. Total gas production in L. edodes did not decrease but peaked on day 28, whereas F. filiformis reduced methane emission. In conclusion, fermentation of corn straw with P. eryngii or L. edodes for 28 d degraded lignin and improved nutritional value as ruminant feed.
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