the title says it all. All my ducklings and goslings have been looking good until I came home from work today. My Fawn and White Runner duckling (17 days old) was stumbling all over the place and falling backwards. from what I have read and others experiences it looks like a niacin deficiency. So I brought her into the house and set her up a mini brooder, she is eating and drinking just fine, still peeping whenever i talk to her and is TRYING to stand up and move around. Anyways she now has water fortified with extra niacin and plenty of food and I am keeping my fingers crossed that she will be ok in the next couple of days. as for the rest of them I mixed a niacin capsule in with their food this time. I had been sprinkling a bit in their water but with their constant playing in it I had a feeling this might happen eventually. Sure enough my worry became a reality. Think I am doing the right things??? I am a home brewer and have some extra brewers yeast packets lying around so I am thinking of adding one to her food instead of totally spiking her water. I don't want to over do anything either!