Ala. Code § 35-11-330

The owner of every stallion, jack, bull, ram, he-goat, or boar, who keeps it for profit and charges a price for the service thereof, shall have a lien, for the amount of the stipulated price thereof, on any mare, jenny, cow, ewe, she-goat, or sow, to which such stallion, jack, bull, ram, he-goat, or boar is put, and also on the colt, calf, lambs, kids, or pigs born next after such service or contract therefor, and such lien shall be paramount to, and have precedence over, all other liens on the colt, calf, lambs, kids, or pigs born next after such service, and within the proper period of gestation.