Duck Tales

My husband decide to get ducks so we are raising ducks. I have little to knowledge on ducks. But I am going to document everything I am doing for them. I live in Georgia, we have pretty warm winters compared to the north. I don’t have a steel tub. I am keeping them in a dog cage with a warming light and wood shavings. My husband bought chicken feed and they eat grass outside too. They love cleaning themselves but they stink up the cage doing it. I change their cage every day If you know good way of killing the smell aside from cleaning the cage let me know.