in the last few years our spring calvers certainly haven’t been bulling as strong and Not rubbing off tail paint no where near as good as they used to. So much that I’m probably going to change to scratch cards. In the same time I’ve changed our teat spray to non-iodine from iodine in the same period as the teat condition is better and milk out times quicker, particularly as there peaking in may which co-insides with mating. Has anyone ever added iodine to give better stronger bulling, I’ve herd of herds doing so in NZ but to do it with caution as too much can harden ovaries. I’m thinking of going back to iodine particularly before/during mating. Any thoughts? TIA