| All factors of the environment may affect animals health. In order to find the impact of environment on the prevention and treament of captive wildlife diseases in Shanghai Zoo, we surveyed factors which affected captive wildlife health and collected a lot of informations about captive wildlife diseases in Shanghai Zoo. In this project, we surveyed wildlifes, plants, water area and open dump.Informations about captive wildlifes' diseases were collected from 1990 to 1999 in Shanghai Zoo and results showed that digestive diseases (herbivores 40.1%, carnivores 38%, primates 26.79%, birds 37.11%), respiratory diseases (herbivores 15.6%, carnivore 20%, primates 13.99%, birds 6.79%) and trauma (herbivores 27.1%, carnivores 12%, primates 24.75%, birds 24.04%) which were highest in three diseases of captive wildlifes were related to seasons and climate in Shanghai Zoo. Generally digestive diseases appeared frequently in summer and fall, but respiratory diseases appeared in winter and spring. Trauma increased obviously during breeding season. Another reason of trauma was that the stalls or cages for animals inhabition were too small, that they often fought and did not escape each other in limited space.Wildlifes such as wildcats, black-crowned night herons, squirrels and rats, which were not belong to be fed in Shanghai Zoo, but now were living in it, were too much to upset the balance of environment in the zoo. We surveyed the populations of them inhabited in Shanghai Zoo. There also were four species of amphibians, ten species of reptiles, five species of mammals and fifty species of birds in Shanghai Zoo. Wildcats, black-crowned night herons, squirrels, rats were dominant groups. They could carry bacterias or viruses and can casue captive wildlifes diseases. Bird flu, canine distemper(CD), canine parvovirus(CPV), feline Panleukopenia(FP) were easy to spread by them. So it was necessary to control the populations of wildcats, night herons to avoid infecting the captive wildlifes.
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