Cow-keepers know this well; their good cows are hygienically reared, and calves are sent to the butcher.
hygienically grown in a bath of nutrients that supply all the necessary food elements.
1833, from French hygiénique, from hygiène; see hygiene. The earlier adjective was hygienal (1660s).
hygienic hy·gi·en·ic (hī'jē-ěn'ĭk, hī-jěn'-, -jē'nĭk)adj.
Of or relating to hygiene.
Tending to promote or preserve health.