Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
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Effects of Dietary Bacillus subtilis Supplementation on Meat Quality, Growth Performance and Fecal Malodor Gas Emission in Finishing Pigs

Bacillus subtilis 급여가 비육돈의 육질 특성, 생산성 및 분내 유해가스 발생에 미치는 영향

  • Jang, Hae-Dong (Department of Animal Resources Science, Dankook University) ;
  • Yoo, Jong-Sang (Department of Animal Resources Science, Dankook University) ;
  • Lee, Je-Hyun (Department of Animal Resources Science, Dankook University) ;
  • Kim, Hyo-Jin (Department of Animal Resources Science, Dankook University) ;
  • Shin, Seung-Oh (Department of Animal Resources Science, Dankook University) ;
  • Hwang, Yan (Department of Animal Resources Science, Dankook University) ;
  • Zhou, Tain-Xiang (Department of Animal Resources Science, Dankook University) ;
  • Chen, Ying-Jie (Department of Animal Resources Science, Dankook University) ;
  • Kang, Dae-Kyung (Department of Animal Resources Science, Dankook University)
  • 장해동 (단국대학교 동물자원학과) ;
  • 유종상 (단국대학교 동물자원학과) ;
  • 이제현 (단국대학교 동물자원학과) ;
  • 김효진 (단국대학교 동물자원학과) ;
  • 신승오 (단국대학교 동물자원학과) ;
  • 황염 (단국대학교 동물자원학과) ;
  • 주천상 (단국대학교 동물자원학과) ;
  • 진영걸 (단국대학교 동물자원학과) ;
  • 강대경 (단국대학교 동물자원학과)
  • Published : 2008.08.30
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Abstract

This study was conducted to evaluate the effects of dietary Bacillus subtilis on meat quality, growth performance and fecal malodor gas emission in finishing pigs. Thirty-six pigs (Landrace ${\times}$ Yorkshire ${\times}$ Duroc, $83.53{\pm}1.01\;kg$ average initial body weight) were used in a 35 d growth assay. Dietary treatments were 1) CON (basal diet), 2) B1 (basal diet + B. subtilis 0.1%) and 3) B2 (basal diet + B. subtilis 0.2%). The pigs were distributed into four pigs per pen with three replicate pens per treatments by completely randomized design. For the entire period, the final weight, ADO, ADFI and gain/feed were not significantly different among the treatments. There were no significant differences in meat quality (sensory evalution, meat color, TBARS, water holding capacity, drip loss, cooking loss and M. longissimus dorsi area) among the treatments. $H_2S$ was significantly decreased in B2 treatment compared to CON and B1 treatments (p<0.05). However, ammonia, mercaptans and acetic acid were not significantly different among the treatments. In conclusion, B. subtilis 0.2% treatments decreased fecal $H_2S$ gas emission in finishing pigs.

본 연구는 Bacillus 균주가 함유된 배합사료 급여시 비육돈의 생산성, 육질 특성 및 분내 유해가스 발생에 미치는 영향을 알아보기 위해 실시하였다. 시험 개시시 체중이 $83.53{\pm}1.01\;kg$인 3원 교잡종(Landrace${\times}$Yorkshire${\times}$Duroc)의 비육돈 36두를 공시하였으며, 5주간 사양시험을 실시하였다. 시험설계는 1) CON(basal diet), 2) B1(basal diet + B. subtilis 제제 0.1%) 및 3) B2(basal diet + B. subtilis 제제 0.2%)로 3개 처리를 하여 처리당 3반복, 반복당 4두씩 완전임의 배치하였다. 전체 사양시험 기간 동안의 체중, 일당증체량, 일당사료섭취량 및 사료효율은 처리구간에 유의적인 차이가 없었다(p>0.05). 육질 특성에 있어서도 처리구간에 유의적인 차이가 없었다(p>0.05). 황화수소($H_2S$)는 B2처리구가 다른 처리구와 비교하여 가장 낮은 함량을 나타났다(p<0.05). 암모니아($NH_3$), 메캅탄(R SH) 및 acetic acid의 함량은 처리구간에 유의적인 차이는 없었지만 B2처리구가 대조구에 비해 감소하는 경향을 나타났다(p>0.05). 결론적으로 비육돈에 있어 생균제 0.2% 첨가 급여시 분내 악취 물질에 있어 효과가 있는 것으로 나타났다.

Keywords

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