So we lamb and kid on pasture as well. We do pen them up afterward in small paddocks just for 24 hours. As far as worming..we only worm when needed, but nursing does and ewes will build up a heavy worm load fast. We dont kid or lamb in summer here (usually Feb-April) , but this year we have noticed the mamas needing wormed a little more often. I am not sure why. We did get a ton a rain in the fall (like 19" over normal). i know I am late to the conversation. I hope your kidding went well!!