To prevent digestive problems, feed some grit one week before allowing access to green fibrous plants. After 8 to 12 weeks of age, geese and ducks will eat very limited supplemental grain. Place lip of feeder at the back height of the bird to prevent feed wastage. Allow 6 linear inches of feeder space per bird and place feeders as far as possible from waterers. Provide plenty of fresh water at all times.
Water is essential to keep waterfowl growing and healthy.
To help keep the pen dry, place lip of the waterer at back height. In adult birds, it is good to give them a waterer deep enough for them to get their head under water beyond their eyes. To help ensure successful mating, it is good to have water available so the waterfowl can swim, especially larger breeds. An old water heater tank cut in half works well. Waterfowl don't require light unless you wish to bring them into egg production early.