So pure impact of breast-feeding, maternal postpartum extended rehabilitation time.
以至于影响纯母乳喂养,延长产妇产后的康复时间。
③calculate parental conception rate in rats, normal birth rate, and survival rate of pups at birth and breast-feeding survival.
③计算亲代大鼠的受孕率、正常分娩率,以及幼鼠的出生存活率和哺乳成活率。