쑥과 정어리유의 첨가가 계육의 품질 및 저장성에 미치는 영향

Effect of Mugwort and Fish Oil Addition on Quality and Shelf-Life in Meat-type Chicken

  • 김영직 (대구대학교 생명자원학부)
  • Kim Y.J. (Division of Life Resources, Taegu University)
  • 발행 : 2006.03.01

초록

본 연구는 육계에 오메가 3계열을 다량 함유한 정어리유 1%와 쑥의 급여수준(0, 1, 2, 4%)에 따라 4처리구로(T1, T2, T3, T4)구분하여 5주간 급여 후 도계하여 대퇴 부위 근육을 냉장온도$(4{\pm}1^{\circ}C)$에서 10일간 저장하면서 pH, VBN, TBARS 및 육색의 변화를 조사하였다. 증체량은 T3구에서 가장 낮았으며, pH는 대조구에 비하여 처리구에서 높았고, 저장 기간이 경과하면서 유의성 있게 상승하였다(P<0.05). VBN과 TBARS는 처리구에서 저장기간이 지남에 따라 증가하였을지라도 대조구는 처리구에 비하여 높은 경향을 나타내었다. 육색은 처리구에서 $L^*$$b^*$값이 대조구보다 높은 경향이었다. 이상의 실험 결과로 미루어 육계사료에서 정어리유를 1%급여시에 2%까지 첨가하면 계육의 품질 및 저장성 개선 효과가 있는 것으로 사료된다.

This study was conducted to investigate the influence of dietary mugwort (0, 1, 2, 4%) and sardline oil(1%) on weight gain, pH, volatile basic nitrogen (VBN), thiobarbituric acid reactive substance (TBARS), and meat color in meat-type chickens. Birds were randomly assigned to the four dietary treatments: control (commercial feed), control plus 1% mugwort and sardine oil (T1), 2% mugwort and 1% sardine oil(T2), or 4% mugwort and 1% sardine oil (T3). Birds were sacrificed and meat samples were taken and stored for either 0, 3, 7 or 10 days at $4^{\circ}C$. Weight gain in T3 was lowest than other treatment groups (P<0.05). pH of dietary mugwort and sardine oil treatments increased significantly compared to that of control during storage periods (P<0.05). VBN and TBARS of all treatment groups were significantly increased as storage period extended (P<0.05). Meat color $(L^*,\;b^*)$ significantly increased during storage periods. $L^*\;and\;b^*$ values were higher in treatment groups than in control (P<0.05). These results indicate that the mugwort and fish oil may improve quality and self-life of meat-type chickens during storage.

키워드

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