Posted 4/10/2025 06:28 (#11183527 - in reply to #11183175) Subject: RE: Johnes control
SW Wisconsin
What are the standards for getting certified Johne's free? For my dairy I test annually and immediately cull any positives. I had a few years with no positives, and then got a couple "suspect" but I hadn't brought any animals on to the farm. I've also had cows test negative for 10+ years before testing positive. It can be sneaky.