I've read on here some about Poly-Vi-Sol vitamins being given to chickens. I've read so much on here that I don't remember what I just read sometimes...LOL Anyway, is that something that is given to their daily water or just every so often or what? Is it only given to sick/weak chickens to help them improve or is it something you give to all the chickens just to help maintain their health? How much do you put per gallon of water and can it be added to the water along with ACV? Thanks in advance.