Meat Quality and Sensory Properties of Korean Native Black Goat by Different Castration Age

거세시기에 따른 재래흑염소 육의 육질 및 관능적 특성

  • Kim, Byung-Ki (Gyeongsangbuk-do Livestock Research Institute) ;
  • Hwang, Eun-Gyeong (Department of Oriental Medicine Industry, Daegu Haany University) ;
  • Kim, Su-Min (Department of Oriental Medicine Industry, Daegu Haany University)
  • 김병기 (경상북도축산기술연구소) ;
  • 황은경 (대구한의대학교 한방산업대학) ;
  • 김수민 (대구한의대학교 한방산업대학)
  • Received : 2010.03.02
  • Accepted : 2010.04.13
  • Published : 2010.06.30


This study was conducted to investigate the effect of different castration ages on meat quality and sensory properties of Korean native black goats over 410 days. For the experiment, 32 heads of goat (eight heads/4 treatment) were subjected to either a control (5 month non-castration), T1 (7 month castration), T2 (5 month castration) or T3 (3 month castration). The total weight gain for Korean native black goats was highest in the T2 group after feeding for 410 days and the weight gain/day tended to be similar to the total weight gain. The total feeding amounts were lowest (410.82 kg) in T3; however, the feed intake ratio was 16.39 in T2, indicating that it had the best feed efficiency among groups. The cooking loss and drip loss of the Korean native black goats was highest in the control, being 35.53% and 2.08%, respectively (p<0.05), while the total cholesterol of the treatments was higher than that of the control (p<0.05). Moreover, the overall sensory evaluation of the treatment groups was low, indicating that there was more meat flavor when compared to the controls in terms of juiciness, tenderness, flavor, texture, black goat off-flavor and overall evaluation (p<0.05). T2 was found to have the best meat flavor upon sensory evaluation. Additionally, the meat color of the control showed the highest $L^*$ value and Hue value, while T3 showed the highest $a^*$ value (3.61) and T2 showed the highest $b^*$ value and Chroma. The composition of fatty acids was 53.76% oleic acid in T2, while the amounts of Mono-unsaturated fatty acid (MUFA) were highest in T1 and T2 (p<0.05). As a result, the MUFA/SFA ratios of T1 and T2 were higher than those of the control (p<0.05). In conclusion, it is most advantageous to castrate Korean native black goats at the age of 5 months for the best performance and meat quality.


Korean native black goat;castration age;meat quality;sensory properties


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