大熊猫妊娠及产仔行为观察

对人工饲养下８ 只次怀孕产仔大熊猫的妊娠反应、产仔行为和７ 只次配种未孕大熊猫行为进行比较研究表明， 受配雌兽到一定时间后摄取窝头情况可作为判断是否怀孕及预测产期的重要行为指标。怀孕产仔大熊猫和假孕大熊猫都有类似的反应： 减食， 拒食窝头、竹， 活动量明显减少， 乳房、外阴发生较大变化， 舔外阴、含竹作巢等。但前者拒食窝头并持续到产后一段时间， 后者有的在拒食窝头的中途出现摄食窝头的行为； 有的减食或拒食不久又摄食窝头－ 再拒食－ 再摄食， 活动量减少， 外阴、乳房仅有微弱变化。产仔大熊猫的预产期在减食窝头后２５ 天左右或拒食窝头后的２１ 天左右。大熊猫产仔期破羊水次数与每胎产仔只数有关。

OBSERVATION ON BEHAVIORS ASSOCIATED WITH GESTATION AND PARTURITION IN GIANT PANDAS

The study involved comparing the behaviors associated with gestation and parturition among pregnant and pseudo pregnat giant pandas.First,the quatity of sorghum eaten by female giant panda after a certain time could be used as an important behavior index for determining whether the female was pregnant, and for calculating the date of parturition.Secondly,both pregnant and pseudo pregnant females displayed similar behavior patterns such as reduced appetite,lower activity level,refusing to eat sorghum and bamboo,noticeable teat and vulva changes,licking the vulva,and nest building behavior etc.However,pregnant females refused to eat sorghum,which continued for a certain time after parturition,whereas pseudo pregant females showed a pattern of eating sorghum,then refusing to eat sorghum,then resuming sorghum consumption.It was found that a pseudo pregnant female exhibited small teat and vulva changes,and decrease in activity.For pregnant females,it was found that the parturition date could be calculated as about 25 days after consumption of sorghum decreased,or about 21 days after sorghum consumption ceased entirely.Finally,it was discovered that the number of times a female expelled amniotic fluid was related to the number of cubs she gave birth to.