Bakhsh Allah, Ismail Ishamri, Hwang Young-Hwa, Lee Jung-Gyu, Joo Seon-Tea
Division of Applied Life Science (BK21Plus), Gyeongsang National University, Jinju 52852, Korea.
Institute of Agriculture & Life Science, Gyeongsang National University, Jinju 52852, Korea.
Korean J Food Sci Anim Resour. 2018 Dec;38(6):1286-1293. doi: 10.5851/kosfa.2018.e64. Epub 2018 Dec 31.
This study assessed the effects of non-stunning (NS) and head-only electrical stunning (HOES) slaughtering condition on meat quality traits of (LL) muscle from Korean black goat (KBG). Ten KBGs (18 months) were assigned into two groups and exposed to either NS or HOES treatments. Blood loss (BL) % was measured after exsanguination, and meat quality traits including muscle pH, meat color measurements (CIE L*, a*, b*, Chroma, and hue angle), water-holding capacity (WHC), Warner-Bratzler shear force (WBSF), and sarcomere length were measured at 24 h postmortem. Results indicated that NS and HOES had no significant difference on BL %, the rate of pH decline, meat color properties, and WHC (p>0.05). It has only a small effect on WBSF and sarcomere length values, but the difference was marginal. These results suggested that meat quality of LL muscle from goat might not be affected by slaughter methods because neither NS nor HOES did result in poor quality of meat.
本研究评估了非致昏(NS)和仅头部电击致昏(HOES)屠宰条件对韩国黑山羊(KBG)腰大肌(LL)肉质性状的影响。将10只18月龄的韩国黑山羊分为两组,分别进行NS或HOES处理。放血后测量失血率(BL)%,并在宰后24小时测量肉质性状,包括肌肉pH值、肉色测定(CIE L*、a*、b*、色度和色相角)、持水力(WHC)、沃纳-布拉茨勒剪切力(WBSF)和肌节长度。结果表明,NS和HOES在BL%、pH值下降速率、肉色特性和WHC方面无显著差异(p>0.05)。它对WBSF和肌节长度值只有很小的影响,但差异不明显。这些结果表明,山羊LL肌的肉质可能不受屠宰方法的影响,因为NS和HOES均未导致肉质变差。