The muscle fiber characteristic traits consist of total fiber number, mean cross-sectional area (CSA), and fiber type composition number; these all had large variations between individual pigs. The mean value for total fiber number was 1,186 (×103), and the mean cross-sectional area of the fibers was 4,176 μm2. The majority of fibers were type 2b at 79.40%. However, type 1 only made up 8.83% of the total fibers. According to the muscle fiber type compositions of the representing results, as would be