Abstract—A study was conducted to evaluate the effects of Pleurotus eryngii stalk residue (PESR) on antimicrobial activity in vitro and growth performance assessment of broiler chickens. The result showed that PESR in in vitro antimicrobial activity assay by pepsin-digested showed approximately 100 mg extracts of PESR performed a significant antimicrobial effect to pathogenic bacterium Sal. typhimurium E29 and E. coli O157:H7 strains. All tested concentration were no effect to the beneficial bacterial Lactobacillus reuteri Pg4 strain. Five hundred 1-day-old broilers were evenly divided by gender and randomly allocated into 5 groups, including the control group (corn-soybean meal diet), 0.5, 1.0 and 2.0% dried PESR groups. The results indicated no significant effects among treatments in the weight gain of grower and finisher periods. In finisher, the feed efficiency of broilers in dried PESR supplemented groups significantly improved than the control group. One percentage of PESR group was significantly increased over the control group in the entire period. It appears that PESR had antimicrobial capability in in vitro, and it could be used as a feed additive to improve the feed efficiency of broilers.
 

Index Terms—broiler, pleurotus eryngii, growth performance, antimicrobial activity

Cite: Tzu-Tai Lee, Chiao-Chun Wang, Chi-Huan Chang, and Bi Yu, "Antimicrobial Activity in Vitro and Growth Performance of Broilers Supplemented with Dried Pleurotus Eryngii Stalk Residue," Journal of Advanced Agricultural Technologies, Vol. 2, No. 2, pp. 143-146, December 2015. Doi: 10.12720/joaat.2.2.143-146