The growth of ducklings needs calcium supplementation, or they will die. Take the ducklings out to play every day and receive the sunlight for no less than 15 minutes, so that the ducklings can supplement calcium well. Don't bathe the ducklings, and don't let them take up a lot of water, because their hair has a layer of resistance on it, and it will break when it gets wet. When they grow up, they can swim in the water. Ducks are born to swim. The environment brought by ducks should not be too hot or too cold, and the owner should master the temperature.