noun
pig farm; hog farm; piggery
A facility where pigs are raised, typically for meat production. A straightforward compound noun.
この地域には大きな養豚場がいくつかある。
There are several large pig farms in this area.
養豚場の見学に行った。
I went on a tour of a pig farm.
牧場 is a general livestock farm or ranch, often for cattle or horses, whereas 養豚場 is specifically for pigs.
Compound of 養 (raise, rear), 豚 (pig), and 場 (place, facility).