The 10th Amendment to the U.S. Constitution reserves certain powers to the states. One of those reserved powers is, generally speaking, the area of criminal law. The specifics of how a state deals with torture, mutilation, bestiality, kidnapping, molestation, infanticide, confinement, and killing of animals will, accordingly, be provided in the given state’s criminal law statutes. Violators of those statutes will be criminally prosecuted.
In a post-abolition world, no sentient species will be excluded from protection against abuse, and no act of violence against or exploitation of an animal will be justifiable on a theory of ownership, property, contract, objectification, or instrumental use. Recognized defenses, such as insanity and self-defense, will be unaffected by animal emancipation.