sick livestock

Wehave two sick mummas at the monment. The original mother goat and one of the mother dorper sheep both have scoures witch means runny poos. We dont know why but I'll worm all of the flock this week and stop giving them hay for a few days and see if that helps. The sheep and goats are in different paddocks seperated by our house so I dont think its contagious but you never know. If any more come down with it I may have to get the vet in.
I may try the garlic powder and seaweed meal first.
So I'm off to be a vet nurse today and will keep a close eye on proceedings.