also: ぼくじょうしゅ
noun
rancher; ranch owner
Refers to the owner or operator of a livestock ranch.
彼は広大な牧場主で、何百頭もの牛を飼っている。
He is a large-scale rancher who raises hundreds of cattle.
牧場主は毎朝早く起きて馬の世話をする。
The ranch owner gets up early every morning to take care of the horses.
Standard kanji spelling.
Alternate reading; ぬし is more common.
Compound of 牧場 (ranch) and 主 (master/owner).