Hi! I’m new on here but I’ve always read threads from here and I have a question! How much should I feed my pekin ducks? Right now they are a week old and I give them free choice but they got too fat and have trouble walking, I take them swimming in a kiddie pool everyday but they only swim for 5 minutes. All they do is sit!! Please help! I also give them 1.5 tbsp of niacin(brewers yeast) for every cup of feed