Insulin-like growth factor 1(IGF1) and its associated binding proteins and transmembrane receptors(IGFR) play an important role in the physiologic process of mammalian growth.The objectives of present work were to estimate the effects of microsatellite markers located in the 5'-regulatory region of the IGF1 on birth weight(BW),weaning weight(WW),weight at the 120th day,the 180th day and litter weight at birth(LWB) by the least square method in Jinhua pig.Significant effect was found for IGF1 genotype on BW(...