Priests: Revenues of First-Born of Animals or Their Substitutes

But you must not redeem the firstborn of an ox, a sheep, or a goat; they are holy. You are to splatter their blood on the altar and burn their fat as a food offering, a pleasing aroma to the LORD.

And their meat belongs to you, just as the breast and right thigh of the wave offering belong to you.

…you are to present to the LORD the firstborn male of every womb. All the firstborn males of your livestock belong to the LORD.

You must redeem every firstborn donkey with a lamb, and if you do not redeem it, you are to break its neck. And every firstborn of your sons you must redeem.