I used to use it on return from a race, but Robert Reid has serious doubts over it, so I have stopped. It is a very strong disinfectant, so kills good and bad bacteria, thus the need to re-line the gut after use with pre and pro biotics.
Some people not checking the whole thread to see when the posts were made. The post itself carries the date information or it would state today and a time. Now you know where to look. I'm sure another super offer like this will appear in the future.
Birds of prey are more prolific. Sparrowhawks and Goshawks take your pigeons by ambush around the loft and Peregrine Falcons when training and racing. These birds have protection that they once didn't have.