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마늘 추출물(Garlic Extract)의 첨가가 육계 생산성, 영양소 소화율, 도체 성상 및 계육 특성에 미치는 영향

Effect of Garlic Extract Supplementation on Growth Performance, Nutrient Digestibility, Carcass Characteristics and Meat Composition in Broilers

  • 조종관 (강원대학교 동물자원과학과) ;
  • 윤세영 (강원대학교 동물자원과학과) ;
  • 김진수 (강원대학교 동물자원과학과) ;
  • 김영우 (강원대학교 동물자원과학과) ;
  • 윤구 (강원대학교 동물자원과학과) ;
  • 권일경 (강원대학교 동물식품응용과학과) ;
  • 채병조 (강원대학교 동물자원과학과)
  • Jo, Jong-Kwan (Department of Animal Resources Science, Kangwon National University) ;
  • Yoon, Se-Young (Department of Animal Resources Science, Kangwon National University) ;
  • Kim, Jin-Su (Department of Animal Resources Science, Kangwon National University) ;
  • Kim, Young-Woo (Department of Animal Resources Science, Kangwon National University) ;
  • Yun, Ku (Department of Animal Resources Science, Kangwon National University) ;
  • Kwon, Il-Kyung (Department of Animal Products & Food Science, Kangwon National University) ;
  • Chae, Byung-Jo (Department of Animal Resources Science, Kangwon National University)
  • 발행 : 2009.12.31

초록

본 연구는 마늘 추출물(GE)의 급여가 육계 생산성, 영양소 소화율, 도체 성상 및 계육 특성에 미치는 영향에 대해 조사하기 위하여 1일령 Hubbard 종 Broiler(체중 $44.72{\pm}1.76\;g$) 1,200수를 공시하여 3처리 4반복, 반복당 100수씩 완전 임의 배치하였다. 3개의 처리구는 각각 대조구, 마늘 추출물 (GE) 100 ppm, 200 ppm 첨가구로 나누어, 육계 전기(0~3주)와 육계 후기(4~5주) 총 5주 동안 사양 시험을 진행하였다. 마늘 추출물(GE) 100 ppm과 200 ppm을 사료에 첨가하여 실험한 결과 증체량과 사료 섭취량에서는 GE 100 ppm 첨가구가 대조구에 비해 높게 나타났지만 통계적 유의성은 인증되지 않았다(p>0.05). 후기의 사료 요구율은 GE 100 ppm 첨가구가 대조구에 비해 개선되었다(p<0.05). 영양소 소화율에서는 GE 100 ppm 첨가구와 GE 200 ppm 첨가구의 건물 소화율이 대조구에 비해 개선되었다(p<0.05). 산패도는 계육의 보존 기간을 늘려주는 주요한 요소인데, 마늘 추출물 급여시 계육의 산패도가 저장 8일과 12일차에 대조구에 비해 유의적으로 낮게 나타났다(p<0.05). 육색 측정에서는 가슴살의 명도, 적색도와 황색도를 조사하였는데, 명도에서 GE 200 ppm 첨가구가 대조구에 비해 높게 나타났다(p<0.05). 본 실험의 결과 육계 사료 내 GE의 첨가는 육계의 생산성에는 영향을 미치지 못한 것으로 나타났다. 그러나 계육의 보존 기간을 늘려주는 주요한 요소인 산패도와 소비자들의 기호성을 높여주는 육색(명도)을 개선시킨 것으로 볼 때 육계 사료 내 GE의 첨가는 계육의 육질 개선에 효과가 있는 것으로 판단된다.

The objective of the current study was to evaluate the effects of garlic extract (GE) supplementation on growth performance, nutrient digestibility, carcass characteristics and meat composition in broilers. Dietary treatment were control (corn-soy based diet, 0 ppm), and diets added with 100 or 200 ppm GE. Starter and finisher diets were fed from 0 to 3 wk and 4 to 5 wk, respectively. Supplementation of GE had no effect on weight gain, but there was trend towards improvement in growth rate in birds fed diets containing 100 ppm GE during overall period, while birds fed 100 ppm GE had better feed efficiency (p<0.05) than birds fed control diet during finisher period. Birds fed GE had greater (p<0.05) nutrient digestibility of dry matter than birds fed control diet. The TBARS values of breast muscle obtained from birds fed 100 and 200 ppm GE were lower than breast muscle of control birds on day 8 and 12 of storage. The breast muscle of birds fed 200 ppm GE had higher (p<0.05) $L^*$ values than breast muscle of birds fed control and 100 ppm GE diets. The carcass characteristics, meat and bone composition, CIE $a^*$ and $b^*$ values did not differ among the dietary treatments. In conclusion, supplementation of GE enhanced feed efficiency and nutrient digestibility in broilers.

키워드

참고문헌

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