利用真菌糙皮侧耳属（Pleurotus spp.）提高发酵玉米秸秆作为反刍动物饲料的营养价值
Enhancement of the nutritional value of fermented corn stover as ruminant feed using the fungi Pleurotus spp.
机构信息
College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, China.
Hunan Institute of Animal and Veterinary Science, Changsha, China.
出版信息
Sci Rep. 2021 Jun 7;11(1):11961. doi: 10.1038/s41598-021-90236-0.
Abstract
Four Pleurotus spp. fungi (P. diamor, P. eryngii, P. sajor-caju, P. citrinopileatus) were compared for their potential to improve nutritional value of corn stover as ruminant feed. Corn stover was inoculated with the fungi under solid-state conditions and their results showed that P. sajor-caju and P. eryngii were better than the other two species of Pleurotus with respect to decreasing the acid detergent lignin (ADL) (8.99 vs 9.88 vs 10.16 vs 10.46). In contrast, P. eryngii had lower ability to degrade cellulose (13.38%). Corn stover treated with P. citrinopileatus had the highest crude protein (CP) content (7.65%), whereas treatment with P. sajor-caju resulted in the highest increase in essential amino acids (55.11%). Although fungal pre-treatment of lignocellulosic biomass does not always result in high-quality feed, overall, P. eryngii and P. sajor-caju improved the nutritive value of corn stover as a ruminant feed.
摘要
四种侧耳属真菌（美味侧耳、杏鲍菇、姬松茸、金顶侧耳）被比较了其作为反刍动物饲料提高玉米秸秆营养价值的潜力。玉米秸秆在固态条件下接种真菌，结果表明，与其他两种侧耳属真菌相比，姬松茸和杏鲍菇在降低酸性洗涤剂木质素（ADL）方面表现更好（8.99 对 9.88 对 10.16 对 10.46）。相比之下，杏鲍菇对纤维素的降解能力较低（13.38%）。用金顶侧耳处理的玉米秸秆具有最高的粗蛋白（CP）含量（7.65%），而用姬松茸处理则导致必需氨基酸含量最高增加（55.11%）。尽管木质纤维素生物质的真菌预处理并不总是导致高质量的饲料，但总体而言，杏鲍菇和姬松茸提高了玉米秸秆作为反刍动物饲料的营养价值。
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