Abstract:Bathing pool water is an important part of waterfowl breeding environment. At present, little is known about the specific impact of bathing pool water pollution on the growth and development of waterfowl. As bone development is an important factor affecting the growth performance of geese, 20-day-old Magang geese were used as the experimental objects, and different water-changing frequencies were set to investigate bathing pool water pollution on tibia development. The results showed that different water-changing frequency significantly affected the total number of bacterial colonies in the water. Water pollution of bathing pool also significantly reduced the tibia diameter and medulla thickness of goslings at 27 days of age, and the bone thickness of tibia at 34 days of age. This study provides a useful reference for increasing geese growth performance by improving breeding environment.