Ages for parasites. Or get other animals to graze it, someone said chickens, but cattle maybe ponies might hover up the parasites. I think it’s accepted that goats should avoid land that’s just been grazed by sheep because they share and are more susceptible to the same things.
But that said, if your goats are wormed frequently and you can get their pop checked and look out for their condition score and any symptoms I guess it’ll be fine.