noun
breeding bull; sire
Technical term used in livestock breeding contexts.
この牧場では優良な種雄牛を飼育している。
This farm raises high-quality breeding bulls.
General term for a bull, not specifically for breeding.
Compound of 種 (しゅ, 'seed; breed') + 雄牛 (ゆうぎゅう, 'bull').