Mo. Rev. Stat. § 272.010
272.010 Field to be enclosed by fence.
272.010. Field to be enclosed by fence. — All fields and enclosures where animals are kept shall be enclosed by a lawful fence as defined in section 272.020 .
(RSMo 1939 § 14569, A.L. 2001 H.B. 219 merged with S.B. 462) Prior revisions: 1929 § 12906; 1919 § 5511; 1909 § 6454 CROSS REFERENCE: Railroad companies to maintain lawful fence; gates and cattle guards, where, 389.650