中文摘要：

采用初情期前母猪军牧1号9头,随机分成3组,分别饲喂高、中、低3个能量组饲料,预饲7日后进入实验期,维持14日,取下每头母猪卵巢和子宫并用液氮保存。结果表明,①卵巢,高能组猪胰岛素样生长因子-1受体（IGF-1R）和表皮生长因子受体（EGFR）mRNA的表达量显著高于低和中能量组（P〈0.05）,低能组这两种生长因子受体表达量显著低于中能组（P〈0.05）。②子宫,高能组猪IGF-1R和EGFRmRNA的表达量显著高于中、低能组（P〈0.05）,低能组低于中能组,但差异不显著（P〉0.05）。日粮能量水平显著影响初情期前母猪卵巢两种生长因子受体的表达,高能量对表达有促进作用,有利于两种生长因子作用的发挥,从而利于生殖系统的生长发育,表明IGF-1R和EGFR可能参与介导能量摄入对初情期前母猪生殖系统发育的影响。

英文摘要：

Nine prepubertal gilts （JunMu No.1） were randomly allocated to three groups （n =3） and fed with a high level digestive energy （Group H）, a low level digestive energy （Group L） and a control group digestive energy （Group M） diet for 14 d, respectively. Free access of water was provided throughout the whole research period. Ovaries and uteruses were collected after 2 weeks energy treatment, and processed for determination of the absolute quantities of insulin-like growth factor receptor （IGF-1R） and epidermal growth factor receptor（EGFR） mRNA by using real-time PCR. The ovaries and uteruses expressed significantly amount of IGF-IR and EGFR mRNA in the Group H than in the Group M and Group L（P〈0.05）. And the ovaries in the Group M expressed significantly larger amount of IGF-1R and EGFR mRNA（P〈0.05） than that in the Group L. The present study demonstrated that high energy intake markedly enhanced the ovarian and uterine expression of IGF-1R and EGFR in prepubertal gilts, whereas, insufficient energy intake markedly inhibited such expressions. The result suggests that IGF-1R and EGFR may be involved in mediating the effects of energy intake on the development of reproductive system in prepubertal gilts.