笼养白头叶猴夏季水分摄入与消耗的初步研究

叶片中的水分含量是白头叶猴水分的主要来源，占水分需求总量的８３．６８％，其它的１６．３２％来自于自由水。在笼养条件下，白头叶猴可饮用自来水，野生状态下，动物饮用露水或雨水。尽管饮水行为不是每天都有，但能经常观察到，特别是在夏季雨后．除了体表和呼吸系统的水分蒸发外，白头叶猴通过尿和粪便丢失的水分含量分别是４４．６８％和５５．３２％。

PRELIMINARY RESEARCH ON WATER INTAKE AND CONSUMPTION OF CAPTIVE WHITE HEADED LEAF MONKEY (PRESBYTIS LEUCOCEPHALUS) IN SUMMER

Water contained in leaves is the main resource available for white headed leaf monkey (Presbytis leucocephalus) , up to 83 68% of total requirement.There is still other 16 32% of water requirement which is from running water in cage or rain water and/or dew in stone shallow in the wild. Although drinking behavior is not the inevitable link in daily activities, it was often observed in wild especially right after raining in summer.regardless evaporation of the body surface and respiration system, there are still two pathways of water loss. Water loss through urine and feces are 44 68% and 53 32% respectively.