Effect of Ammoniated and/or Basidiomycete White-Rot Fungi Treatment on Rice Straw Proximate Composition, Cell Wall Component, and In Vitro Rumen Fermentation Characteristics

Various pretreatments are employed to increase the utilization of rice straw as a ruminant feed ingredient minimize its negative environmental impact. However, an efficient alternative is still needed. The purpose this study was evaluate ability ammonia and/or white-rot fungi (Pleurotus ostreatus) degrade lignin, nutritional value, and enhance rumen fermentability straw. Rice treated with basidiomycete (P. untreated control under solid-state fermentation employing completely randomized design. crude protein increased from 2.05% in 3.47% ammoniated straw, 5.24% ostreatus), 6.58% ammoniated-basidiomycete fungi-treated had least lignin content (3.76%). Ammoniated-basidiomycete improved vitro dry matter digestibility (65.52%), total volatile fatty acid (76.56 mM), gas production (56.78 mL/g) compared (56.16%, 67.71 mM, 44.30 or (61.12%, 75.36 49.31 mL/g), respectively. treatment straw’s digestibility, acids, production.