Abstract
Pleurotus ostreatus TMI30026 (oyster mushroom) was evaluated for its potential to improve the in vitro degradability of wheat straw. P. ostreatus TMI30026 was incubated on wheat straw and wheat straw with rice bran (10, 30, 50% on a dry matter basis) substrates for 15-90 days at 25℃ and 75% relative humidity. Detergent fiber, acid detergent lignin and dry matter degradability by cellulase were determined. The dry matter, acid detergent lignin and hemicellulose in wheat straw substrate decreased through incubation with P. ostreatus TMI30026. The dry matter degradability by cellulase of wheat straw substrate was improved by 30% and degradable dry matter by cellulase increased by 70% at the end of 60 days through incubation with P. ostreatus TMI30026. The digestibility of the substrate was not improved with the rice bran addition.