It support leg muscles which Pekins can have problems with. Because of weight and also because they may have a niacin deficiency. This can happen when they are young duckling and can be very noticeable and sometimes not so much. But if it can help even a little worth. Using
Wouldn’t hurt to give him some liquid BComplex it’s great for leg. Health. TSC has best one we’ve found 1ml over a small amount of a treat so he gets full dose. You may. Have to ask for it some stores keep it in the cattle dept others where they keep meds.