Duane@ssu
New member
I heard the "Ivermec kills border collies" for years, I had a few that were "worth testing". Gave six of them, from diff lines, a full dose. They were all fine, and continued to use it for years. The ones that "made the cut", are still working cows, and it has been 6 years since the first dose. So I say "old wives tale", but I am no vet. Duane