What are the temperature control requirements inside a duckling house?

In the first week, keep the temperature inside the brooding house at 28 to 30 degrees; in the second week, maintain it at 25 to 27 degrees; in the third week, maintain it at 20 to 24 degrees; after the fourth week, they can adapt to the outside temperature. Whether the temperature is suitable can be judged by the activity of the ducklings. If the ducklings gather in groups under the heat source, it proves the temperature is too low, so the temperature can be raised appropriately, and the huddled ducklings should be frequently scattered; if the ducklings stay away from the heat source and drink water frequently, it proves the temperature is too high, so the temperature should be adjusted appropriately. To prevent the ducklings from overcrowding and huddling into one group, bamboo fences can be used to separate them for keeping warm.