My mentor when I was first starting out in sheep got Johnes in her flock. She ended up depopulating a large portion of her flock to eradicate it. Did they say that milk replacer is a potential source or something? When else would sheep be fed cow's milk? I guess maybe show lambs via some if the drenched, but any recipe I have seen uses either canned evaporated milk or powdered milk. I am assuming pasteurization would kill the bacteria?
