Mo. Rev. Stat. § 578.173: Baiting or fighting animals — penalty.

1. A person commits the offense of baiting or fighting animals if he or she:

(1) Baits or fights animals;

(2) Permits baiting or animal fighting to be done on any premises under his or her charge or control;

(3) Promotes, conducts, or stages a baiting or fight between two or more animals;

(4) Advertises a baiting or fight between two or more animals;

(5) Collects any admission fee for a baiting or fight between two or more animals;

(6) Knowingly attends the baiting or fighting of animals;

(7) Knowingly sells, offers for sale, ships, or transports any animal which has been bred or trained to bait or fight another animal;

(8) Owns or possesses any of the cockfighting implements, commonly known as gaffs and slashers, or any other sharp implement designed to be attached to the leg of a gamecock; or

(9) Manufactures, sells, barters, or exchanges any of the cockfighting implements, commonly known as gaffs and slashers, or any other sharp implement designed to be attached to the leg of a gamecock.

2. The offense of baiting or fighting animals is a class E felony.