야콘 부산물과 쑥 분말을 사료에 첨가 급여한 육계의 도체 특성 및 품질에 미치는 영향

Abstract

This study were investigated the effects of dietary supplementation of yacon by-products and mugwort powder on performance, carcass characteristics, pH, TBARS (thiobarbituric acid reactive substance), WHC (water holding capacity), shear force and meat color of broiler thigh meat. Broiler chicks were fed diets for five weeks containing 0% yacon by-products and mugwort powder (Control), 0.5% yacon by-products powder (T1), 1.0% yacon by-products powder (T2), 0.5% mugwort powder (T3), and 1.0% mugwort powder (T4). There were no significant difference in performance among treatments, but mortality was decreased in diets by the supplementation of yacon by-products and mugwort powder than that of control. The total cholesterol, LDL-cholesterol and triglyceride of control were higher than treatment groups and HDL-cholesterol of control was lower than treatment. The TBARS was significantly decreased by the supplementation of yacon by-products and mugwort powder compared to the control (P<0.05), especially, mugwort powder treatment group was significantly (P<0.05) more effective in improving freshness compared to other treatment groups. The WHC and shear force were not significantly different. CIE L * and a * value of treatment groups showed significantly higher value compared to the control, however, no difference in the CIE b * values was observed among treatment groups. In conclusion, a supplementation of yacon by-products and mugwort powder were effective in decreasing TBARS, total cholesterol and LDL-cholesterol and increasing HDL-choles-