raising domestic animals
豢 centers on the act of raising and feeding domestic animals, especially for food or labor.
豢 combines 龹 (possibly related to feeding or enclosing) with 豕 (pig), suggesting the idea of raising pigs or livestock. The exact historical development is uncertain.
The top 龹 looks like a hand offering food, and the bottom 豕 is a pig. Picture a farmer hand-feeding a pig to raise it.
For ケン, imagine a man named Ken who raises pigs: Ken -> ケン, and he is always feeding his animals.