Our daughter got 12 ducklings on April 21. They were around two weeks old when she got them. One duck (named Delilah) always walked a tiny bit odd from time-to-time and when she was about 6 weeks old, she all of a sudden couldn’t walk at all from one day to the next. This has been going on for three weeks now. She lays around mostly, gets up on her “ankles” sometimes to move, but usually face plants when she does. She is eating and drinking fine. I called the vet and he suggested we give her probiotics in her water and worm her. It hasn’t helped at all. She’s been on probiotics for a week now. A family friend suggested giving her brewer’s yeast for additional niacin. She can move her feet, but can’t stand on them. Has anyone had this happen to a duck? Can anyone help suggest something to get Delilah on her feet again? Literally?