Effective population size Figure 4 shows a clear trend in declining N e in both AN and CH.
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The sentences
Various studies have shown highly significant evidences for the presence of QTLs affecting birth weight (Li et al., 2002 ; Kim et al., 2003 ) and carcass traits (Stone et al., 1999 ; Casas et al., 2000 ; Kim et al., 2003 ) on BTA5.