Journal of Animal Science and Technology

Korean Society of Animal Sciences and Technology (한국축산학회)
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Effect of Dietary Cracked Whole Barley on the Meat Compositional Properties of Hanwoo Steer Loin Beef

분쇄 통보리 급여 수준이 거세한우의 등심부위의 성분 조성에 미치는 영향

  • Lee, Sang-Moo (School of Animal Science and Biotechnology, Kyung-Pook National University) ;
  • Son, Je-Ik (School of Animal Science and Biotechnology, Kyung-Pook National University)
  • Received : 2011.05.26
  • Accepted : 2011.07.29
  • Published : 2011.08.31
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Abstract

This study was carried out to investigate the effects of the feeding level of cracked whole barley (CWB) on fatty acid composition, free amino acid content, organic acid content, pH, HDL cholesterol, total phenol and DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging activity of finishing Hanwoo steers. The dietary treatments were consisted of five types (C: base feed + 0% CWB, T1: base feed + 10% CWB, T2: base feed + 20% CWB, T3: base feed + 30% CWB, T4: base feed + 40% CWB). A total 30 Hanwoo steers(588.6${\pm}$11.8kg) were allocated into 5 feeding groups, and a total of thirty Hanwoo steers raised from 24 to 30 months. Linoleic acid of fatty acid composition was significantly higher for cracked CWB treatments (T1, T2, T3, and T4) than C, and T3 of CWB treatments was the highest than the other treatments (P<0.01). SFA, USFA, MUFA and USFA/SFA did not differ among the treatments. On the contrary, PUFA was significantly higher for CWB treatments(T1, T2, T3, and T4) than C, and T3 was the highest (P<0.05). EAA was higher in the order of T1 > T2 > C > T3 > T4 (P<0.05). NEAA was higher in the order of T2 >T3 >T1 >C >T4, although a statistical significance was not detected. The total organic acid content was the highest for T3 (20.15 mg/100g) and the lowest for T2 (13.19mg/100g). pH and total phenol of all treatments were did not differ. HDL cholesterol was higher in the order of T1 > C > T4 > T2 > T3 (P<0.01). DPPH radical scavenging activity was in order of T1 > T2 >T4 > C > T3 (P<0.01). Based on the above results, T1 treatment compared to other treatments have been shown to improve EAA, DHL, and DPPH radical scavenging activity.

본 연구는 분쇄 통보리 사료의 급여 수준이 비육 후기 한우 거세우의 지방산, 유리아미노산, 유기산, pH, 콜레스테롤, 페놀 및 DPPH 라디칼 소거능에 미치는 영향을 검토하고자 분쇄 통보리 급여 기준을(배합사료 기준으로 0%, 10%, 20%, 30%, 40% 분쇄 통보리 첨가) 5 처리하여 실시하였으며 처리구당 6두씩(구당 평균 체중 588.6 kg) 배치하고 비육후기 6개월 동안 처리구 별로 사육하였다. 실험에서 얻어진 결과를 요약해 보면 다음과 같다. 지방산 조성비율에서는 linoleic acid 성분은 C구에 비하여 분쇄통보리 첨가구(T1, T2, T3, T4)가 높은 경향을 보였으며, 특히 분쇄 통보리 30%를 첨가한 T3구가 가장 높게 나타났다(P<0.01). 그러나 나머지 지방산들에서는 유의적인 차이를 보이지 않았다. SFA, USFA, MUFA 및 USFA/SFA 비율에서는 처리간 유의적인 차이가 없었지만 PUFA 비율에서는 C구에 비하여 보리첨가구들이 높았으며, 특히 T3구는 다른 구에 비하여 유의적으로 높은 수치를 나타냈다(P<0.05). 아미노산 함량 중 필수아미노산은 T1 > T2 > C > T3 > T4구 순으로 높았으며(P<0.01), 비필수 아미노산 함량은 T2 > T3 > T1 > C > T4구 순으로 높았지만 상호 처리간 유의적인 차이는 없었다. 총유기산 함량은 T3구가 20.15 mg/100 g으로 가장 높은 함량을 나타낸 반면 T2구는 13.19 mg/100 g으로 가장 낮은 함량을 나타냈다(P<0.05). pH와 총페놀 함량은 상호처리간 유의적인 차이가 없었다. HDL 콜레스테롤 함량은 T1 > C > T4 > T2 > T3 구 순으로 높게 나타났으며(P<0.01), DPPH 라디칼 소거능은 T1 > T2 > T4 > C > T3구 순으로 높게 나타났다(P<0.01). 이상 결과를 종합해 보면, T1 (분쇄 통보리 10% 첨가 급여) 처리구가 다른 구에 비하여 등심부위의 필수아미노산, HDL 및 DPPH 라디칼 소거능을 향상시키는 것으로 나타났다.

Keywords

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