When more and more captive animal welfare and the public's attention captive for caregivers in terms of how captive animals have the right environment and proper care is a very important issue, the general assessment of captive animals in its animal welfare, often use behavior reference for observation and measurement of cortisol in blood pressure in order to understand its index, in addition to the acoustic activity is also an assessment of the animal as a state, this study through environmental, physiological, behavioral abnormalities as assessment, environmental anomaly is divided into abnormal sound environment overnight in the presence or absence of abnormal water level and temperature anomaly analysis, and physiological abnormalities is divided into two parts trauma and illness, will analyze three beluga whales of the National Museum of marine Biology and Aquarium (Delphinapterus leucas through these different environments and physical changes ) of sound, in order to achieve proper understanding of its environmental and health protection facilities to improve its animal welfare.
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