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Muscle Fiber Characteristics and Fatty Acid Compositions of the Four Major Muscles in Korean Native Black Goat

  • Hwang, Young-Hwa (Institute of Agriculture & Life Science, Gyeongsang National University) ;
  • Joo, Sung-Hyun (Department of Animal Science, Gyeongsang National University) ;
  • Bakhsh, Allah (Division of Applied Life Science (BK21+), Gyeongsang National University) ;
  • Ismail, Ishamri (Department of Animal Science, Gyeongsang National University) ;
  • Joo, Seon-Tea (Institute of Agriculture & Life Science, Gyeongsang National University)
  • Received : 2017.12.01
  • Accepted : 2017.12.09
  • Published : 2017.12.31

Abstract

The objective of this study was to investigate the relationship between muscle fiber characteristics and fatty acid composition of four major muscles in Korean native black goat (KNBG). Longissimus lumborum (LL), psoas major (PM), semimembranosus (SM), and gluteus medius (GM) were obtained from five male KNBGs of 36 mon of age and subjected to histochemical analysis and to determine fatty acid composition and meat quality traits. There were significant (p<0.05) differences in fiber number percentage (FNP) and fiber area percentage (FAP) of fiber types among these four muscles. PM had the highest FNP of type I and the lowest FNP of type IIB, while SM had the highest FNP of type IIB. The highest fat content was observed in LL while SM had the lowest fat content. The proportions of SFA and MUFA were significantly (p<0.05) different among four muscles due to differences in the majority of fatty acids such as oleic (C18:1) and palmitic (C16:0) acids. The PUFA/SFA ratio was significantly (p<0.05) different among four muscles, and the highest PUFA/SFA ratio was observed in PM. Results suggested that LL and PM might be healthful because of higher desirable fatty acid value and PUFA/SFA ratio, respectively. Also, data showed that correlations between muscle fiber types and fatty acids proportion of goat muscles were reversed with those of cattle muscles.

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