Margaret, here's where a lot of us will order Safeguard liquid from, if we can't find it locally...My peas are not free ranged and I can separate them from the guineas and I have a lb of safe guard. The peas weight about the same. The safe guardi 0.5% I have let thei food run way down can I dump the entire sack in their feeder without giving too much?
http://www.jefferspet.com/safe-guard-dewormer-for-goats/camid/LIV/cp/I6-SK/cn/3300/