I have 5 Nubians. For the last few years I have been culling the ones that get parasites to easily. I am trying to get my herd healthy enough to avoid wormers as we drink the milk. Does anyone rotate their herd every 3 weeks for parasite control. Do you do a total clean out of the pen after they leave? If so is there any type killer that would be good to spread over the cleaned dirt pen? Do you mow the new pasture before they go out on it. Or do you mow it after they leave it so the sun will hopefully bake the worm eggs. Finally, do you worm them and if so when? Thanks, love this forum. I have learned a lot.