title: Effects of fermented mushroom (Flammulina velutipes) by-product diets on growth performance and carcass traits in growing-fattening Berkshire pigs.
abstract: This study was conducted to investigate effects of fermented mushroom (Flammulina velutipes) by-product diets on the growth performance and carcass traits in growing-fattening Berkshire pigs. The fermented diets mainly contained 40.0% mushroom by-product, 20.0% formula feed, 26.0% rice bran and supplemental 0.1% probiotics. The mixed ingredients were fermented for 5days at room temperature. Berkshire pigs (n=225) were divided into five groups and three replications. The basal diets (C) were substituted by 10% (T1), 30% (T2), 50% (T3) and 70% (T4) fermented mushroom by-product diets. Crude protein concentration and total calorie in fermented diets were significantly increased (P<0.05) at the end of fermentation days compared with initial fermentation day. Body weight gain, feed efficiency and carcass weight were significantly lower (P<0.05) in the T2, T3 and T4 groups than in the control group. Carcass grade was significantly better (P<0.05) in the pigs fed fermented diets than in the pigs fed control diet and the ratio of high grade (1 plus 2 grades) was higher in the fermented diet groups compared with the control group. Therefore, although a diet of fermented mushroom by-product decreased growth performance and feed efficiency, it improved the carcass grade in Berkshire pigs.
authors.affiliation: Swine Science & Technology Center, Jinju National University, Jinju, South Korea.
authors.forename: Gyo Moon
authors.initials: GM
authors.lastname: Chu
authors.forename: Jeong Mo
authors.initials: JM
authors.lastname: Yang
authors.forename: Hoi Yun
authors.initials: HY
authors.lastname: Kim
authors.forename: Chung Hui
authors.initials: CH
authors.lastname: Kim
authors.forename: Young Min
authors.initials: YM
authors.lastname: Song
mesh_terms: D000821:Animal Feed; D000818:Animals; D004032:Diet; D004435:Eating; D005285:Fermentation; D055393:Flammulina; D008460:Meat; D013552:Swine / Q000254:growth & development* / Q000502:physiology; D015430:Weight Gain