Prof. Mulumebet Worku
North Carolina A&T State University, United States
Description
Probe - Plant & Animal Sciences (ISSN: 2661-4057) is an online double-blind peer reviewed, open access journal dedicated to advancing knowledge in the fields of plant and animal biology.
The journal is committed to maintaining high standards of quality and rigor, contributing to the global understanding of biodiversity and sustainable practices in conservation.
The journal publishes original research articles, reviews, and short communications that explore the latest developments in plant and animal sciences, including but not limited to ecology, genetics, physiology, and biotechnology.
Articles
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Open Access
Article
Article ID: 2268
Bioconversion of peanut hulls into digestible and nutritive ruminant feedby Yasir Ali, Mussayyab Khan, Ariba Fatima, Ruqaya Quyoom
Probe - Plant & Animal Sciences, Vol.7, No.1, 2025;79 Views, 0 PDF Downloads
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 < 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 Calocybe indica ; and 85.5 to 70.93 by Pleurotus djamor . Incubation with fungal species resulted in a large decline in the content of lignin in SCB. Overall, the lignin content (g/kg DM) was reduced from 21.9 to 13.1 by Agaricus bisporus ; 22.0 to 13.5 by Calocybe indica ; 22.2 to 12.9 by Pleurotus ostreatus and from 21.87 to 14.46 by Pleurotus djamor . The content of IVDMD ( P < 0.05) increased with the fungal incubation in SCB. The content of IVDMD (g/kg) increased from 30.67 to 47.9 by Agaricus bisporus ; 32.3 to 47.67 by Pleurotus ostreatus ; 32.37 to 47.9 by Calocybe indica ; and 32.97 to 48.16 by Pleurotus djamor after 56 days of incubation period. These changes in CP, lignin, NDF and IVDMD demonstrate that Calocybe indica has a higher capability of improving the digestibility for ruminants than Agaricus bisporus, Pleurotus ostreatus and Pleurotus djamor . Overall, the study demonstrated that solid-state fermentation of peanut hulls with lignin-degrading fungi significantly improves their nutritional quality by reducing lignin content and increasing CP and IVDMD.
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