牧夫 is read as ぼくふ (bokufu) and means herdsman.
ぼくふ
bokufu
まきば
pasture
ぼくちく
stock-farming
ぼくや
pasture land
ぼくし
pastor
ぼくそう
ぼっかてき
pastoral
ぼくしゃ
barn
ぼくじょうしゅ
rancher
ぼくじん
shepherd
ぼっかいしょかん
Pastoral Epistles (i.e. Timothy 1 and 2, Titus)
ぼくみん
governing
ぼくち
pasture or grazing land