To investigate the mechanism of difference in intramuscular fat deposition between Erhualian and Large White pigs,single tube relative-quantitative RT-PCR method was used to investigate the development patterns of lipogenic (ACX, LPL, ME) and lipolytic (HSL) gene expression with 18S internal standard control. Sixteen Large White boars and twenty Erhualian boars were selected and raised according to normal nutrition standard respectively. The animals were selected randomly and slaughtered at 15 kg, 40 kg, 60 kg and 90 kg for Large White pigs and at 18 kg, 40 kg, 60 kg, 80 kg and 90 kg for Erhualian pigs respectively; with four animals of each breed at each time.
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