Bioconversion of peanut hulls into digestible and nutritive ruminant feed

作者：Yasir Ali, Mussayyab Khan, Ariba Fatima, Ruqaya Quyoom · 发表于：Probe-Plant & animal sciences. · 年份：2025 · DOI：10.18686/ppas2268 · 研究领域：Ruminant Nutrition and Digestive Physiology、Meat and Animal Product Quality、Food composition and properties

This study aimed to evaluate the effectiveness of four lignin-degrading fungal species to breakdown lignin to improve the nutritional value and enhance the rumen degradability of low-quality roughage such as peanut hulls. The substrate was incubated with Agaricus bisporus, Pleurotus ostreatus, Calocybe indica, Pleurotus djamor for 56 days under solid state conditions (humidity, 70% ± 5%, temperature, 22 ℃ ± 5 ℃). The chemical composition and in vitro dry matter digestibility (IVDMD) of the substrates were measured at various fungal incubation periods. Fungal incubation significantly (P &lt; 0.05) increased crude protein (CP), ash content, and IVDMD while decreasing dry matter (DM), neutral detergent fiber (NDF), acid detergent fiber (ADF), and lignin in all substrates. There was a consistent increase in the content of CP with the increasing incubation length. At the end of 56 days incubation period, the content (g/kg DM) of CP increased from 3.80 to 6.53 in peanut hulls treated by Calocybe indica; from 3.98 to 6.53 by Agaricus bisporus; from 3.99 to 6.00 by Pleurotus ostreatus and from 3.89 to 6.08 by Pleurotus djamor. The content (g/kg DM) of NDF reduced from 88.7 to 75.6 by Agaricus bisporus; 84.97 to 72.43 by Pleurotus ostreatus; 85.0 to 72.30 by <em&...