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 Chicken Meat Quality Stored during Cold Storage

뽕잎 분말의 첨가 급여가 계육의 냉장저장 중 품질에 미치는 영향

  • 박창일 (대구대학교 동물자원학과) ;
  • 김영직 (대구대학교 동물자원학과)
  • Received : 2011.10.12
  • Accepted : 2012.01.05
  • Published : 2012.04.30
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Abstract

This study was investigated the effects of supplementation diets with mulberry leaves powder on pH, TBARS (thiobarbituric acid reactive substance) and VBN (volatile basic nitrogen) heating loss, WHC (water holding capacity), and drip loss of chicken meat. One hundred sixty broiler were fed diets for five weeks containing 0% mulberry leaves powder (Control), 1% mulberry leaves powder (T1), 2% mulberry leaves powder (T2), and 3% mulberry leaves powder (T3). At the end of this experiment, broiler were slaughtered, and stored at $4^{\circ}C$ for 10 d. As storage time increased, all treatment groups resulted in increased pH, TBARS, VBN and drip loss (p<0.05). The TBARS and VBN were significantly decreased by the supplementation of mulberry leaves powder compared to the control (p<0.05). T3 results in much better TBARS and VBN than other treatment groups. Especially, T3 was significantly (p<0.05) more effective in improving self life compared to other treatment groups. Heating loss and drip loss were no significantly different among treatment group. In conclusion, these data indicate that supplementation of 3% mulberry leaves powder were most effective in decreasing TBARS and VBN.

본 시험은 육계 사료에 뽕잎 분말을 급여수준에 따라 5주간 사육한 육계의 pH, TBARS, VBN, 가열감량, 보수성 및 육즙손실을 조사하였다. 실험구는 뽕잎분말을 급여하지 않은 대조구, 뽕잎 분말 1% 급여구는 T1, 뽕잎 분말 2% 급여구는 T2, 그리고 뽕잎 분말 3% 급여구를 T3 등 4개 처리구로 나누어 사육한 후 10일간 냉장온도($4{\pm}1^{\circ}C$)에서 저장하면서 실험하였다. 계육의 pH는 저장기간이 경과하면서 증가하였고, 뽕잎 분말의 급여는 대조구보다 낮았으며 급여량이 증가할수록 다소 낮아졌다. TBARS와 VBN은 저장기간이 지남에 따라 증가하였고, 뽕잎 분말 급여구에서 급여량이 증가할수록 낮아지는 결과로 뽕잎분말의 급여는 계육의 저장성을 개선하는 결과이었다. 가열감량은 저장기간이 경과하면서 감소하였고, 처리구간에는 유의성이 없었다. 육즙손실은 저장기간이 지남에 따라 증가하였으며, 뽕잎 분말의 급여는 육즙손실이 감소되는 경향이나 저장 7일과 10일에 유의성은 없었다(p>0.05). 결론적으로 뽕잎 분말 3%급여는 TBARS와 VBN이 감소되어 계육의 저장성을 개선할 가능성이 있는 것으로 판단된다.

Keywords

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