Miss. Code Ann. § 21-19-9: Miss. Code Ann. § 21-19-9

The governing authorities of municipalities shall have the power to prevent or regulate the running at large of animals of all kinds, and to cause such as may be running at large to be impounded and sold to discharge the costs and penalties provided for the violation of such regulations and the expense of impounding and keeping and selling the same; to regulate and provide for the taxing of owners and harborers of dogs, and to destroy dogs running at large, unless such dogs have proper identification indicating that said dogs have been vaccinated for rabies; and to provide for the erection of all needful pens, pounds and buildings for the use of the municipality, within or without the municipal limits, and to appoint and confirm keepers thereof, and to establish and enforce rules governing the same.

The governing authorities of municipalities may enter into pacts, agreements or contracts with other municipalities to provide for cooperation in the use or erection of all pens, pounds and buildings to prevent or regulate the running at large of animals of all kinds.