Wyoming constitution
Article 19: miscellaneous
Section 1

The legislature shall pass all necessary laws to provide for the protection of livestock against the introduction or spread of pleuro-pneumonia, glanders, splenetic or Texas fever, and other infectious or contagious diseases. The legislature shall also establish a system of quarantine, or inspection, and such other regulations as may be necessary for the protection of stock owners, and most conducive to the stock interests within the state.