The expression of Col3a1 mRNA increased with gaining of body weight, but decreased a little at 70 kg and 80 kg phases for LW and LL respectively.

• 总体上；莱芜猪肌肉组织Col3a1 mRNA表达丰度显著高于鲁莱黑猪(P<0.；05)；相同体重组间；除70kg体重组外；其余体重组Col3a1 mRNA表达丰度均是莱芜猪高于鲁莱黑猪。