Also since your going to have ducklings and I imagine you'll be feeding chick crumb? they will need some type of niacin since chick crumb doesn't have what ducklings need so if you can find Nutritional yeast to sprinkle over their feed at 1 tablespoon per cup of feed. This is for leg health. Large breeds especially tend to have more problems.
https://www.backyardchickens.com/threads/niacin-deficiency-in-waterfowl.1367557/
https://www.backyardchickens.com/threads/nutritional-yeast-vs-brewers-yeast.1393856/
I don't rec brewers yeast and this will explain.
https://www.backyardchickens.com/threads/niacin-deficiency-in-waterfowl.1367557/
https://www.backyardchickens.com/threads/nutritional-yeast-vs-brewers-yeast.1393856/
I don't rec brewers yeast and this will explain.