한국축산식품학회지 (Food Science of Animal Resources)

  • 제28권4호
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  • Pages.451-456
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  • 2008
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  • 2636-0772(pISSN)
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  • 2636-0780(eISSN)
한국축산식품학회 (Korean Society for Food Science of Animal Resources)
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사료내 Conjugated Linoleic Acid 첨가수준이 육계의 생산성, 도체특성 및 근내 지방산 조성에 미치는 영향

Effect of Dietary Conjugated Linoleic Acid on Growth Performance, Carcass Characteristics and Muscular Fatty Acid Composition in Broiler

  • 김영직 (대구대학교 생명자원과학부) ;
  • 김병기 (경상북도 축산기술연구소) ;
  • 윤용범 (대구대학교 생명자원과학부)
  • 발행 : 2008.10.31
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초록

본 연구는 CLA를 육계사료에 첨가하여 그 급여수준(0, 0.5, 1.0, 1.5, 및 2.0%)에 따라 육계의 생산성과 CLA를 급여한 계육의 도체특성, 혈청콜레스테롤 및 지방산조성의 변화를 검토하고자 육계 200수(Arbor Acre Broiler, male)를 5주 동안 공시하였다 육계의 생산성을 나타내는 증체량, 사료섭취량 및 사료요구율은 CLA급여에 따른 유의성은 없었다. 도체특성중 도체율뿐만 아니라 도체중에 대한 간, 대퇴부위, 흉심 및 북채의 비율은 CLA를 급여함으로서 유의한 변화가 없었지만, 복강지방 비율은 CLA 급여량이 많아짐에 따라 유의한 감소 현상을 확인할 수 있었다(p<0.05). 혈청콜레스테롤은 CLA급여량이 증가할 수록 총콜레스테롤과 LDL-C은 감소하고, HDL-C은 증가하였다(p<0.05). 그리고 지방산 조성 변화는 CLA를 급여함에 따라 palmitic acid는 증가하고, oleic acid, linoleic acid 및 arachidonic acid는 감소하여 포화지방산은 증가하고 불포화지방산은 감소하는 현상을 보였다. 또한, CLA의 이성체함량도 CLA급여량이 증가함에 따라 직선적으로 증가하였다(p<0.05). 결론적으로 계육에 CLA 축적을 극대화하기 위해서는 2%까지 급여도 가능하지만. 지방산조성의 변화가 심하므로 CLA도 축적시키고 지방산 변화도 최소화할 수 있는 1%의 급여수준이 적합할 것으로 판단된다.

This study was conducted to determine the effects of dietary supplementation with conjugated linoleic acid (CLA) feeding levels (0, 0.5, 1.0, 1.5, and 2.0%) on the carcass characteristics, growth performance, serum cholesterol, and fatty acid in thigh of chicken meat. Two hundred broiler (Arbor Acre Broiler, male) were randomly assigned to five groups and were fed for five weeks and slaughtered. Thigh muscle was used for determining fatty acid composition. There was no significant difference in growth performance, such as weight gain, feed intake and feed conversion by CLA levels. Among carcass characteristics, percentage of carcass, thigh, breast, and drumstick was not influenced by the dietary CLA levels, but abdominal fat was significantly reduced with the increased CLA amount in the broilers diets (p<0.05). Higher CLA levels increased HDL-C and reduced total cholesterol and LDL-C (p<0.05). As the dietary CLA levels increased, muscular palmitic acid (saturated fatty acid) levels was increased, but the rates of oleic acid, linoleic acid, and arachidonic acid (unsaturated fatty acid) were decreased. In addition. CLA isomers were linearly increased with the increase in dietary CLA levels (p<0.05). As a conclusion, 2% of CLA feeding is possible to maximize accumulation of CLA in meat, but changes in fatty acid composition is not profitable. Therefore, 1% of CLA feeding i,j considered to be proper for accumulation of CLA and minimization of the change in fatty acid.

키워드

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피인용 문헌

  1. Comparison of Physiological Changes in Broiler Chicken Fed with Dietary Processed Sulfur vol.20, pp.2, 2013, https://doi.org/10.11002/kjfp.2013.20.2.278
  2. Effect of Conjugated Linoleic Acid Feeding on the Growth Performance and Meat Fatty Acid Profiles in Broiler: Meta-analysis vol.26, pp.7, 2013, https://doi.org/10.5713/ajas.2013.13071