OldEarth Cows

On NewEarth with active smuggling, the Farmers are trying to keep a herd of OldEarth cows alive for milk production, cheese and butter. Not only are those cows prone to illnesses on the new planet, but they are also difficult to keep away from other predators. Humans try to steal them, Putons want to eat them and the poor things have no natural defenses in the new environment. Do you think the Farmers will succeed with introducing a new species to the planet?