Numbers 18:17
But the first-born of a cow, or the first-born of a sheep, or the first-born of a goat, thou shalt not redeem; they are holy: their blood shalt thou pour out upon the altar, and their fat thou shalt burn a sacrifice for an odor of sweetness to Jehovah.
Exodus 29:16
And slaughter the ram, and take his blood and sprinkle upon the altar round about
Leviticus 3:2-5
And he placed his hand upon the head of his offering, and slaughtered it at the door of the tent of appointment: and Aaron's sons the priests sprinkled the blood upon the altar round about
Deuteronomy 15:19-22
All the first-born that shall be brought forth among thy cattle and among thy sheep, the male thou shalt consecrate to Jehovah thy God: thou shalt not work with the first-born of thy bullock, and thou shalt not shear first-born of thy sheep.