Hwang YH, Bakhsh A, Lee JG, Joo ST. Differences in Muscle Fiber Characteristics and Meat Quality by Muscle Type and Age of Korean Native Black Goat.
Food Sci Anim Resour 2019;
39:988-999. [PMID:
31950114 PMCID:
PMC6949526 DOI:
10.5851/kosfa.2019.e92]
[Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 11/29/2019] [Accepted: 11/29/2019] [Indexed: 11/17/2022] Open
Abstract
To investigate the relationship between muscle fiber characteristics and meat
quality traits by age of Korean native black goat (KNBG), four muscles
(longissimus dorsi, LD; psoas major, PM;
semimembranosus, SM; gluteus medius, GM)
were obtained from five adult goat (AG; 18 months old) and five young goat (YG;
9 months old). PM muscle had the highest fiber number percentage (FNP) and fiber
area percentage (FAP) of type I, followed by SM, GM, and LD muscles. FNP and FAP
of type IIB were significantly (p<0.001) higher in AG than those in YG.
YG had higher L* values but lower b* values than AG. The highest L* and b*
values were observed in LD muscle (p<0.001). Age and muscle type had
detrimental (p<0.001) effect on shear force and collagen content for all
muscle in AG as compared to YG. YG had significantly (p<0.001) higher
myofibrillar fragmentation index (MFI) than AG for all four muscles. These
results suggest that muscle fiber compositions of different muscle types of KNBG
depend on age, resulting in variations of meat color, MFI, collagen content, and
shear force.
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