The place I own has not had goats on it since I brought my two does home in December 2008. At least no goats in 90 years so I am not worried about CL. However, my son and I are thinking of running a dozen or so brush goats (mixed, Spanish, boer crosses). While we won't be buying any from the auction ring, I do want to know if the vaccinations to prevent CL are reliable if we buy them from local breeder/owners. I feel that if I can't keep CL out of the brush herd, my dairy goats can't ever graze or be allowed wherever the brush goats go. My dairy goats are dog gentle and follow me to the pond, the windmill, etc., all the pastures where I would be rotating the brush goats. Any management suggestions?