Feeding Chickens for Show

[aerica]

I currently have a very small flock of Silkies, which I have on Purina Flock Raiser. All in all, I have no complaints about their health...all are doing very well. I was curious to know though, does anyone give their flock (especially ones they plan to show in the future) vitamins/supplements to their flock daily? If so, what brands do you use, and what results have you seen from this? Like I said, my flock has no health problems, but anything I can do to help give them an extra little boost I am more than willing to try! I only raise Silkies so I have no need to add supplements to "beef" them up so-to-speak. Thanks!