Hello, My chickens have been prescribed Tylan soluble in water for 5 days. The vet seemed non-committal about egg withdrawal. This web forum seems to have lots of conflicting information about the appropriate withdrawal time. I looked it up and the FDA says that in the US it should not be used on chickens that produce eggs for human consumption. Period. It's clear that a lot of backyard chicken keepers use Tylan. Is the FDA statement just for commercial egg producers? Anyone have a vet's recommendation for egg withdrawal?