The spider can lay eggs several times in the reproductiveperiods. So it is polyovulation type.
在生殖季节里可多次产卵，为多次产卵类型。
2
Regular periods with normal premenstrual symptoms are one of the best indicators that your reproductive system is healthy.
经期正常是生殖系统健康的最好标志之一。
3
During periods of stress, such as prepartum, postpartum, high temperature and transportation, milk production, immune function, reproductive performance of dairy cows are reduced.