At the same time,the morphological variations of the ampulla and ithmus of the oviducts were observed and measured by light microscopy.Results\ The serum levels of estradiol were E>PE>ME>DE>OVX.

• 结果 大鼠血清雌二醇浓度依次为 :动情期组 >动情前期组 >动情后期组 >动情间期组 >去卵巢组 ,各组间差异均有显著性 ;