Abstract：52 pigs from F2 population ( Pietrain × Erhualian ) were slaughtered for sampling after 2h transport.
Pork quality was characterized by measuring pH45min, pH24h, tenderness, water holding capacity, cooking loss, and color scores- l*, a*, b*. 22 microsatellite DNA loci were selected from the published stress QTL regions in swine. One-way ANOVA was applied to analyze the relation between microsatellite polymorphisms and pork quality. The results revealed that: the allelic number was 3～8, heterozygosity was 0.4155～0.7432 and polymorphism information content (PIC) was 0.3651～0.8150. S0101 had significant effect on meat color-a* (P< 0.01). The effect of SW1023 on water holding capacity (WHC) was significant (P<0.05). The effects of SW1808 on WHC (P< 0.01), meat color-l*(P<0.05) and b*(P<0.05) were significant, respectively. Both S0112 and S0092 had significant effects on pH45min (P<0.05). Our study suggested that these 5 microsatellites in swine stress QTL regions were closely associated with pork quality in response to transport.
