All breeds of goats are susceptible to stomach worms. This is why an established schedule of worming which is stringently followed is vital to maintaining goats' health.
Goats are foragers and browsers.
Producers who force them to be grazers are guaranteeing major worm infestation in their goats. Don't assume that milder, dryer weather means less worm problems. While worm larvae survive about two months in summer, they can live up to six months over winter. Just two inches of rain per month will dissolve the goat pills and release the infective larvae to crawl up vegetation, where they are ready for goats to eat them. Moisture as slight as morning dew is enough for the larvae to reach the tips of the plants, once they have been released by rain from the goat pills.