한국가금학회지 (Korean Journal of Poultry Science)

  • 제34권2호
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  • Pages.137-141
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  • 2007
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  • 1225-6625(pISSN)
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  • 2287-5387(eISSN)
한국가금학회 (The Korean Society of Poultry Science)
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효모(Saccharomyces exiguus)의 급여가 육계 생산성, 맹장내 미생물 및 분내 암모니아 가스 발생에 미치는 영향

Effect of Dietary Yeast (Saccharomyces exiguus) on Growth Performance, Cecal Microflora and Fecal Ammonia Gas in Broiler Chickens

  • 김동욱 (축산과학원 축산자원개발부 가금과) ;
  • 장병귀 (축산과학원 축산자원개발부 가금과) ;
  • 김지혁 (축산과학원 축산자원개발부 가금과) ;
  • 유동조 (축산과학원 축산자원개발부 가금과) ;
  • 강근호 (축산과학원 축산자원개발부 가금과) ;
  • 강환구 (축산과학원 축산자원개발부 가금과) ;
  • 나재천 (축산과학원 축산자원개발부 가금과) ;
  • 김상호 (축산과학원 축산자원개발부 가금과) ;
  • 이덕수 (축산과학원 축산자원개발부 가금과) ;
  • 서옥석 (축산과학원 축산자원개발부 가금과)
  • Kim, D.W. (Poultry Science Division, National Institute of Animal Science) ;
  • Jang, B.G. (Poultry Science Division, National Institute of Animal Science) ;
  • Kim, J.H. (Poultry Science Division, National Institute of Animal Science) ;
  • Yu, D.J. (Poultry Science Division, National Institute of Animal Science) ;
  • Kang, K.H. (Poultry Science Division, National Institute of Animal Science) ;
  • Kang, H.G. (Poultry Science Division, National Institute of Animal Science) ;
  • Na, J.C. (Poultry Science Division, National Institute of Animal Science) ;
  • Kim, S.H. (Poultry Science Division, National Institute of Animal Science) ;
  • Lee, D.S. (Poultry Science Division, National Institute of Animal Science) ;
  • Suh, O.S. (Poultry Science Division, National Institute of Animal Science)
  • 발행 : 2007.06.30
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초록

본 연구는 Saccharomyces exguus의 첨가 급여가 육계 생산성 및 분내 유해가스 발생에 미치는 영향을 구명하기 위하여 수행되었다. 1일령 육계 수평아리(Ross strain) 270수를 공시하여 3처리 3반복 반복당 30수씩 완전 임의배치하였다. 처리구는 대조구인 항생제 첨가구 및 효모 0.5와 1.0% 처리구를 두었다. 본 실험에서 5주 종료 체중 및 증체율이 효모의 첨가 수준에 따라 유의하게 증가하였으며(P<0.05), 사료 요구율은 효모 첨가시 개선되는 경향이 보였으나, 유의성은 인정되지 않았다. 맹장 내 E. coli, Salmonella, Lactobacillus 수는 대조구인 항생제 첨가구와 비교하여 차이가 없었다. 암모니아 가스의 발생량은 대조구에 비해 유의하게 감소하였다(P<0.05). 계분 내 저급 지방산 및 휘발성 유기 화합물은 변화가 없었다. 본 연구 결과 육계에 Saccharomyces exguus급여는 생산성을 향상시키고 계분 내 암모니아 가스 발생량을 감소시켜 항생제 대체 및 환경 개선제로 이용 가능함을 시사하였다.

This experiment was conducted to investigate the effects of dietary yeast (Saccharomyces exguus) supplementation on growth performance, cecal microflora and fecal ammonia gas in broiler chicks. A total of two hundred seventy, 1-d-old male broiler chicks (Ross strain) were randomly allotted to nine pens (replicates), 30 birds per pen. There were three dietary treatments with three replicates. The treatments were control (virginiamycin 0.05%+salinomycin 0.03%), Saccharomyces exguus 0.5 and 1.0%. Total body weight gain were significantly higher in Saccharomyces exguus1 1.0% treatment than the control (P<0.05). Although not significant, the yeast supplementation tended to improve the feed conversion ratio. No significant differences were observed on the numbers of cecal E. coli, Salmonella and Lactobacillus in yeast treatments compared to those of control. The production of fecal ammonia gas was significantly lower in yeast treatments than the control (P<0.05). The concentrations of fecal short chain fatty acids and volatile organic compounds were not different among the groups. These results suggest the possibility that yeast (Saccharomyces exguus) could be used as the alternative of antibiotic growth promoters by improving the performance of broiler chicks. In addition, dietary yeast could improve the environment of broiler houses by reducing fecal ammonia production.

키워드

참고문헌

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