The correlations between CSA and fiber type compositions showed opposite results with TN. CSA was positively correlated to TI (r = 0.28) and negatively correlated to TIIb (r = -0.23). The TI and TIIa fiber type compositions were negatively correlated to TIIb fibers (r =-0.60 and -0.75, respectively), which is in accordance with a previous study (Ryu et al., 2004). Because the porcine longsissimus dorsi muscle mostly consisted of type 2b fibers, there were relatively high correlations between TIIb and the other muscle fiber characteristics. However, with the exception of DL (r = 0.18), TIIb was not significantly related to the lean meat production ability or meat quality traits.