Journal
MEAT SCIENCE
Volume 86, Issue 2, Pages 456-461Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2010.05.034
Keywords
Muscle fiber characteristics; Korean native cattle; Hanwoo steers; Beef quality
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Funding
- Ministry of Education and Human Resources Development
- Rural Development Administration, Republic of Korea [200905FP001]
- National Research Foundation of Korea [과C6A2202] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Rural Development Administration (RDA), Republic of Korea [PJ00725920101135300] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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To investigate the relationships between muscle fiber characteristics and meat quality traits of Korean native cattle, Hanwoo, Longissimus dorsi (LD), Psoas major (PM) and Semimembranosus (SM) muscles obtained from 18 Hanwoo steers and the muscle fiber characteristics were measured by histochemical analysis. Fiber number, area percentages and density of type IIA and IIB were lower in SM muscle, but higher in PM muscle than other muscles. LD muscle had higher pH(24h), L* value and fat content whereas SM muscle had lower L* value and fat content. The lowest WBSF with longer sarcomere length was observed in PM muscle, while SM muscle showed the highest WBSF with shorter sarcomere length. Consequently, the percentage of type I and IIB were highly correlated with meat quality traits and inversely correlated with fat content, L* value and WBSF. Fiber number and area percentage of type I had a positive correlation with fat content and L* value and a negative correlation with WBSF. These results suggest that Hanwoo steers had high marbling, more lightness and tenderness when the percentage of type I was high and the percentage of type IIB was low in muscle. (C) 2010 The American Meat Science Association. Published by Elsevier Ltd. All rights reserved.
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