활성탄과 비타민 A의 급여가 거세 한우육의 이화학적 특성에 미치는 영향 = Effect of Supplemental Charcoal Powder and Vitamin A on the Physico-Chemical Characteristics in Fattening Hanwoo Steers

다국어 초록 (Multilingual Abstract)

Effects of supplemental charcoal powder and vitamin A on physico-chemical properties in 24 Hanwoo steers were investigated. The Hanwoo steers were randomly assigned to one of the three dietary treatments : 1) Control (commercial feed) 2) T1 (commercial feed supplemented with 2% charcoal powder and 0.2% vitamin A) 3) T2 (commercial feed with 2% charcoal powder). Crude fat content of proximate chemical composition in longissimus muscle was increased at control but moisture of control was rather lower than that of treatment groups (p<0.05). The WHC (water holding capacity) in longissimus muscle was tended to increase in control and shear force was higher in T2 (p<0.05). However, effects of diets charcoal power and vitamin A on pH were not found (p>0.05). Tenderness and flavor of sensory evaluation was improved significantly in control with peculiar and savory taste of Hanwoo being more emphasized. But Juiciness were not difference by treatments. When Hanwoo steers were fed with dietary charcoal powder and vitamin A, the palmitoleic acid and linoleic acid contents were higher compared with that of control (p<0.05), but oleic acid was higher in control than others.

국문 초록 (Abstract)

본 시험은 거세한우에 대한 활성탄과 비타민 A의 첨가급여가 육질에 미치는 영향를 구명하기 위하여 거세 한우 총 24두를 공시하여 대조구, 활성탄 2%와 비타민 A 0.2%를 혼합급여한 T1구 그리고 활성탄 2% 급여구인 T2구로 3개 처리구에 각 8두씩을 배치하여 14개월간 사양시험을 실시하였고, 등심부위 근육을 공시하여 이화학적 특성을 조사하였다. 일반성분 중에서 대조구의 조지방 함량은 높았으나 상대적으로 수분 함량은 처리구에 비해 낮은 함량을 나타내었다(p<0.05). 등심부위 근육의 보수성은 대조구에서, 전단력은 T2구에서 높은 경향이었다(p<0.05). 그러나 pH는 처리구 사이에 특별한 변화가 없었다. 활성탄과 비타민 A의 첨가급여는 관능평가에서 연도, 육향에서 개선 효과는 없었으며 대조구가 처리구에 비해 유의적으로(p<0.05)높은 결과를 나타내었다. 지방산에서 palmitoleic acid와 linoleic acid 함량은 활성탄 또는 비타민 A 첨가구가 대조구보다 유의적으로 높았으나(p<0.05), oleic acid는 대조구가 다른 처리구보다 더 높은 경향이었다.

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