Leviticus 27:26
A firstborn animal already belongs to Jehovah because it was born first. Therefore, it cannot be set apart as holy. Whether it is a bull or a sheep, it belongs to Jehovah.
Exodus 13:2
Consecrate (appoint) (sanctify) all the first-born males to me. Every first-born male Israelite and every first-born male animal belongs to me!
Exodus 13:12-13
sacrifice every firstborn male offspring to Jehovah. The firstborn male offspring of each of your animals belongs to Jehovah.
Exodus 22:30
Do the same with your oxen and with your sheep. Its mother may keep it for seven days. On the eighth day give it to me.
Numbers 18:17
You must never buy back a firstborn bull, sheep, or goat. They are holy. Throw the blood from these animals against the altar. Burn the fat as an offering by fire, a soothing aroma to Jehovah.
Deuteronomy 15:19
To Jehovah your God you shall consecrate all the firstborn males that are born of your herd and of your flock; you shall not work with the firstborn of your herd, nor shear the firstborn of your flock.