Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
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Effects of Dietary Supplementation of Mulberry Leaves Powder on Carcass Characteristics and Meat Color of Broiler Chicken

사료 내 뽕잎 분말 첨가 급여가 육계의 도체특성 및 계육의 육색에 미치는 영향

  • 박창일 (대구대학교 동물자원학과) ;
  • 김영직 (대구대학교 동물자원학과)
  • Received : 2012.03.14
  • Accepted : 2012.08.22
  • Published : 2012.12.31
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Abstract

This study was conducted in order to investigate the effects of supplementation diets of mulberry leaves powder on performance, carcass characteristics, blood characteristics, and meat color of chicken meat. Broiler chicks were fed diets containing 0% mulberry leaves powder (Control), 1% mulberry leaves powder (T1), 2% mulberry leaves powder (T2), and 3% mulberry leaves powder (T3) for five weeks. The weight gain, feed intake, and feed conversion were no significant difference among treatment groups. The carcass weight, carcass ratio, gizzard, cecum, heart, and abdominal fat weight were not significantly different. The liver weight significantly decreased by the supplementation of mulberry leaves powder compared to the control (p<0.05). The total cholesterol and LDL-cholesterol concentration of the control were higher than T3, but the HDL-cholesterol concentration, glucose, and albumin of the control were lower than those of the treatment groups (p<0.05). However, there were no significant difference in GPT and triglyceride concentration among treatments. In meat color, the CIE $L^*$ and $a^*$ value of treatment groups (T3) showed significantly higher value compared to the control, however, no difference in the CIE $b^*$ values was observed among treatment groups. In conclusion, these data indicate that 3% mulberry leaves powder supplementation was most effective in decreasing the total cholesterol and LDL-cholesterol as well as increasing the HDL-cholesterol, glucose, and albumin concentration.

본 시험은 육계에 뽕잎 분말의 급여량에 따라(0, 1%, 2% 및 3%) 5주간 사육한 육계의 생산성과 육계의 도체특성, 혈액성상 및 육색을 조사하였다. 실험구는 뽕잎 분말을 첨가 급여하지 않은 처리구를 대조구, 뽕잎 분말 1% 급여구는 T1, 뽕잎 분말 2% 급여구는 T2 그리고 뽕잎 분말 3% 급여구를 T3 등 4개 처리구로 나누어 실시하였다. 육계의 생산성은 처리구간 유의적인 변화는 없었다. 도체특성 중 도체중, 도체율, 근위, 맹장, 심장 및 복강지방 무게는 처리구간에 유의성이 없었고, 간의 무게는 대조구와 T1 및 T2는 비슷하지만 T3에서 다소 가벼운 결과이었다(p<0.05). 육계의 혈액 성상 중 HDL-cholesterol과 glucose 및 albumin은 뽕잎 급여구에서 높았고, 총 콜레스테롤과 LDL-cholesterol은 낮아지는 결과로(p<0.05) 뽕잎을 3%이상 급여할 경우 유의한 변화를 보였다. 뽕잎 분말을 3% 급여한 계육의 $L^*$값과 $a^*$값은 증가하여 육색이 어두워지는 경향이었고, $b^*$값은 처리구간에 특이한 변화가 없었다. 결론적으로 뽕잎 분말을 3% 이상 급여하면 총콜레스테롤, LDL-cholesterol이 감소하며, HDL-cholesterol이 증가함으로 혈액성상을 개선할 가능성이 있는 것으로 판단된다.

Keywords

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