The effect of cadmium on the female gonad was shown to have the extrous cycle delayed and the proportion of atresic follicle increased. 鎘的雌性性腺生殖毒性可表現為動情周期的明顯延長，卵巢細胞生長發育過程的明顯障礙。
Methods The method of cervical mucus crystallization was used to examine estrous and estrus cycle of mice exposed to chronic different As2O3 drinking water. 方法採用宮頸黏液結晶法對不同濃度慢性砷暴露小鼠動情周期和動情期進行檢查。
The bitch's cycle is divided into four periods. 母犬的發情周期被分為一下四個階段。
