Hi All, I was wondering if y'all could help me understand/figure out something... I just got back from the vet with fecals done on all my goats. As usual, my girls have next to no coccidia--all of them, even the late June doeling. And as usual, my boys have high levels. I get them down with treatment, and then they explode later, whether we use a sulfa or corid, or both in conjunction. I would just take it at face value that once every 3 to 4 weeks you have to do cocci treatment until adulthood, if it weren't for my girls NEVER needing treatment. The vet is stumped. She said that if she hadn't been to my farm, from the fecals, she'd just think that my boys were in an overcrowded and dirty condition, but having been to my farm and being thoroughly amazed by how clean I keep everything and how much space my bucks have, she can't figure it out. Now all my girls come from the same line and I'm wondering if perhaps this line is just more resistant?? If I didn't have the June doeling with super low cocci levels, I'd blame it on the fact that my other 2 does were Feb babies and my bucks are May babies. But that June doeling throws that theory out the window. So, for now she said we'll just do a treatment once every 4 weeks unless we see cause for concern (sick symptoms) before then, and try switching to a rumensin feed, since that's one drug we have yet to try. I know there's a co-op in TN that sells one, but ours doesn't, so I need to pull up that item number & label and see if they can get it in... and perhaps try calling some of the other local feed mills... (the one I use won't touch the stuff)... Anyhow, can anyone explain why I'm seeing what I'm seeing here? Why do my girls have such low levels and never need treatment, and my boys need regular treatment?