Abstract
This study was carried out to investigate the feeding effects of the dietary supplementation of fermented spent mushroom (Pleurotus eryngii) substrates with Bacillus amyloliquefaciens CS47 and Saccharomyces cerevisiae (F-SMS) on growth performance and carcass characteristics of Hanwoo steers. Thirty two Hanwoo steers were allocated into two feeding groups and assigned equally to two dietary treatments; Control (commercial formula feed for Hanwoo steers and rice straw) and TMR including 30% F-SMS. The nutritional values of TMR including 30% F-SMS was higher crude protein (11.67%) and TDN (72.11%) than rice straw, but not significantly different from commercial formula feed (p＜0.05). Feed intake was significantly greater in the TMR including 30% F-SMS than the control (p＜0.05), but body weight gain and carcass grades were not influenced by the experimental diets. Based on this study, fermented spent mushroom (Pleurotus eryngii) substrate with Bacillus amyloliquefaciens CS47 and Saccharomyces cerevisiae is may be used as an ingredient of feed in TMR for Hanwoo steer.
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