noun
A person who tends livestock, especially cattle or sheep. Somewhat literary or formal; in everyday speech, 牧場主 or 牧畜業者 may be more common.
彼は若い頃、牧夫として働いていた。
When he was young, he worked as a herdsman.
Compound of 牧 (boku, 'pasture') and 夫 (fu, 'man'). The exact historical derivation is uncertain, but the spelling is conventionally associated with a man who tends livestock.