Earlier today I was at my local feed store buying some more feed for my flock when I ran into an older gentleman whom during our conversation about chickens told me about an interesting use of vinegar. He told me that he uses Apple Cider Vinegar as a wormer instead of the wormers purchased at stores. He said that the ratio is appoximately 2 tablespoons for a 3 gallon waterer and 3 tablespoons for a 5 gallon waterer. He said to do this every three months and the chickens would be fine. Anyone else ever hear of this or have any other information about this?