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Effects of Supplementary Wild Grape Wine By-product on Quality Characteristic of Loin from Berkshire Breed

산머루주 박 급여가 버크셔종의 등심 품질특성에 미치는 영향

  • Kim, Tae-Wan (Gyeongnam Swine Cluster agency) ;
  • Kim, Chul-Wook (Department of Animal Resource Technology, Jinju National University) ;
  • Kim, Il-Suk (Department of Animal Resource Technology, Jinju National University)
  • 김태완 ((주)경남양돈클러스터사업단) ;
  • 김철욱 (진주산업대학교 동물소재공학과) ;
  • 김일석 (진주산업대학교 동물소재공학과)
  • Published : 2008.04.01

Abstract

A total of 40 pigs were used to investigate the feeding effects of supplementary wild grape wine by-product on pork quality of American Berkshire breed in the swine farm of Hamyang area. Treatments were C that was basal diet, and T that was treated by dietary wild grape wine by-product(5%) were added in feed. About 70 kg pigs were bred a period of 88 days, and slaughtered. The pork quality characteristic were measured in pork loin. In chemical composition, moisture and crude fat were not significantly different between C and T, but T were lower(p<0.05) than C. There were no difference in crude protein and crude ash(p<0.05). pH and water holding capacity(WHC) were not significantly different between C and T, whereas the cholesterol and fat shear force of T were lower(p<0.05) than C. There were no different in the meat color, but the Hunter’s L* and W value of T were higher(p<0.05) than C. Oleic acid(C18:1), linoleic acid(C18:2, n-6), arachidonic acid(C20:4, n-6), Essential fatty acid(EFA), and EFA/unsaturated fatty acid were significantly(p<0.05) different between C and T, in the fatty acid compositions of loins. Also, the total amino acid composition of pork were not significantly different between C and T, but essential fatty acid of T was significantly higher(p<0.05) than that of C. This observation suggests that wild grape wine by-product supplements may have some beneficial effects on improving backfat color, shear force, cholesterol and essential fatty acid content of pork loin.

경남 함양지방의 양돈장에서 사육중인 아메리칸 버크셔종을 대상으로 산머루주 부산물을 배합사료와 혼합한 시험사료 5%를 20두에 대해 생시체중 70 kg에서 88일간 급여한 후 등심부위를 채취하여 품질평가를 실시하였다. 일반성분 분석결과 수분과 조지방은 대조구와 처리구 간에 유의적인 차이를 나타내지 않았으나(p>0.05), 조단백질과 조회분은 처리구가 낮았다(p<0.05). pH와 WHC는 대조구와 처리구 간에 차이가 없었고(p>0.05), 콜레스테롤과 지방의 전단가는 처리구가 낮게 나타났다(p<0.05). 육색은 차이가 없었으나(p>0.05), 지방색에서의 명도와 백색도는 처리구가 높았다(p<0.05). Oleic acid(C18:1), linoleic acid(C18:2, n-6), arachidonic acid(C20:4, n-6), 필수아미노산 및 EFA/UFA에서 유의적인 차이가 나타났다(p<0.05). 총 아미노산 함량은 대조구와 처리구 간에 유의적인 차이가 없었으나(p>0.05), 필수아미노산은 처리구가 대조구 보다 높게 나타났다(p<0.05). 이상에서 산머루주 박 급여 시 등지방색, 전단가, 콜레스테롤 및 필수지방산의 함량이 개선되는 것으로 나타나 산업적 응용 가능성이 있을 것으로 판단되었다.

Keywords

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