Yes, it does have GV.
And the question is:
Is it safe for use in poultry?
There is some concern about it's safety and, if so, at what concentration? When contacting the blu kote company, they only state that it hasn't been tested for approval in poultry.
I'm guessing it has been used on chickens because many people that had poultry had animals that it was tested for. They probably just took it from their first aid kit and used it on the poultry too...and told other people that they did so. Which likely resulted in folks thinking it was safe.
Something to ponder...