Section 18 of Chapter 96 from Minnesota Public Statutes 1860-1872 covers the treatment of animals. Specifically, the statute covers the punishment for cruelty to animals.
OFFENSES AGAINST CHASTITY, MORALITY, ETC.
SECTION 18. Every person who shall cruelly beat or torture any horse, ox, or other animal, whether belonging to himself or another, shall be punished by imprisonment in the county jail not more than thirty days, or by fine not exceeding fifty dollars nor less than five dollars.