Effect of Dietary Bacillus sp. Inoculated Feather Meal on the Performance and Nutrient Utilization in Broiler

摘要

This study was carried out to investigate the replacing fish meal or soybean meal effect of with feather meal or Bacillus sp. inoculated feather meal in broiler diets on the performances and nutrient utilization. One hundred and eighty broilers wererandomly allotted to six dietary treatments((1) control, basal diet; (2) BFM100, Fish meal replacing at 100% level with bacillus sp. inoculated feather meal; (3) BSM20, Soybean meal replacing at 20% level with bacillus sp. inoculated feather meal; (4) BFM100+BSM20, Fish meal and soybean meal replacing at 100% level and 20% level with bacillus sp. inoculated feather meal, respectively; (5) GFM100, Fish meal replacing at 100% level with general feather meal; and (6) GSM20, Soybean meal replacing at 20% level with general feather meal) in a 5-week feeding trial. In overall period, body weight gain of control was the highest(l,623g) and those of BFM 100, BFM 100 + BSM 20 and GFM 100 were l,572g, l,564g, and l,078g, respectively. And that of GFM 100(1,078.3g) was the lowest(p < 0.05) among treatments. Digestibility of dry matter for BFM 100 + BSM 20(81.46%) was higher(p < 0.05) than that for other treatments, and that of crude protein was the lowest (p < 0.05). Digestibilities of organic matter were significantly(p < 0.05) improved when Bacillus sp. inoculated feather meal was replaced at 100% level with fish meal in the basal diet. Methane and hydrogen sulfide gases from the feces were significantly(p < 0.05) decreased in chicks fed the control, BFM 100and GFM 100 diets, when observed after 3 weeks of feeding trials. Feed costs of the control and BFM 100 were 417 and 384 won, respectively but that of BSM 20 was 558 won. Therefore, replacement of fish meal with Bacillus sp. inoculated feather meal in thediets for chicks could be useful for economic production.