yep, sheep graze dog paddocks, dog poo gets picked up and goes in hot box composter all dogs get wormed. shouldn't be an issue if its managed right but it works both ways. sheep worms very bad for dogs too worm dogs no issues in them or the sheep. worm sheep keep them off dog felids 48hrs, sheep wormer is toxic to dogs. if it all grows to fast we get some Dexter's for worm hovering, and meat.