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Effects of Complex Direct-Fed Microbial Supplementation on Growth Performance and Nutrient Digestibility for Broilers  

김인호 (단국대학교 동물자원과학과)
손경승 (단국대학교 동물자원과학과)
홍종욱 (단국대학교 동물자원과학과)
권오석 (단국대학교 동물자원과학과)
민병준 (단국대학교 동물자원과학과)
이원백 (단국대학교 동물자원과학과)
박용하 (프로바이오닉)
이인선 (프로바이오닉)
한영근 (농협중앙회)
Publication Information
Korean Journal of Poultry Science / v.31, no.2, 2004 , pp. 85-91 More about this Journal
Abstract
This study was conducted to investigate the effects of dietary direct-fed microbials(DFM) on the growth performance and nutrient digestibility in broiler chickens. A total of two hundred eighty eight broiler chickens were randomly allocated into six treaments with four replications and fed for five weeks. Dietary treatments included 1) CON (basal diet), 2) DFM-1(basal diet + 0.2% Enterococcus sp. & Lactobacillus reuteri), 3) DFM-2(basal diet + 0.2% Enterococcus sp. & Lactobacillus plantarum), 4) DFM-3(basal diet + 0.2% Enterococcus sp. & Lactobacillus reuteri & Lactobacillus plantarum), 5) DFM-4(basal diet + 0.2% Enterococcus sp. & Lactobacillus reuteri & Lactobacillus plantarum & Yeast), 6) DFM-5(basal diet + 0.2% Enterococcus sp. & Lactobacillus reuteri & Lactobacillus plantarum & Bacillus subtilis). During the period of 1∼3weeks, average daily gain (ADG) and Feed/Gain were not significant different among treatments. In the later(3∼5weeks) and overall period(l∼ 5weeks), ADG and Feed/Gain tended to be improved in DFM treatments compared to the control. However, there were no significant differences among DFM complexes and between control and DFM treatments. The broilers fed DFM-3 diet was showd poor growth performance compared to the broilers fed DFM-l diet and similar to the broilers fed DFM-2 diet but there was no significant differences. The treatments of DFM-4 diet added Yeast and DFM-5 added Bacillus subtilis were improved in ADG and Feed/gain but no significant differences were found and also there was no specific DFM treatments in experiment period. In digestibility, the broiler chicks fed DFM treatments tended to improve N digestibility compared to control treatment. However, they were not significantly different among the treatments. In conclusion, DFM tended to improve growth performance in later stage of broiler.
Keywords
direct fed microbial; growth; nutrient digestibility; broiler chickens;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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