大熊猫分娩活动的观察

本文报道了对6只大熊猫(Ailuropoda melanoleuca)14次分娩活动的观察结果。大熊猫分娩前48小时至24小时即出现将分娩的征兆,其总产程约14至22小时左右。分娩时为纵向胎向;多数为胎上位,个别为胎侧位;胎势为前肢和头颈靠紧并伸直,尾、后肢并紧且自然伸直;多数胎儿为头、前足先露出,即前躯前置;少数为尾、后足、臂先露出,即后躯前置。

OBSERVATION ON THE PARTURIENT ACTIVITIES OF THE GIANT PANDA

This paper reports on the observation result of 6 giant pandas(Ailuropcda melan-oleuca) in 14 parturitions. The observation were made by author from September, 1979 to August, 1990. Symptoms indicating the imminence of its parturition could be observed 48 to 24 hours before the event takes place. The whole parturient process lasted about 14 to 22 hours. Position of the foetus during delivery was longitudinal, mostly facing upward,or facing sidewise in some cases. The form of the foetus was like that fcrelimbs was stretching forward alongside the head and neck and hindlimbs was stretching in a juxtaposition . Most of the foetus are delivered with head and forefeet first in a prior leading position, but in less cases with tail, hindfeet and rump first in a posterior leading position.Concave scars could be found on the uterus corners of some multiparous females. Sometimes there were the cases of stricture of the uterus corners caused by constricted scars.