The board of health, in cities of the first class, is hereby empowered to enact rules and regulations governing the conditions under which animals or poultry may be slaughtered and dressed, or meats, poultry, fish, game, and shell-fish may be prepared for use as food, or stored, or exposed for sale. Such rules and regulations shall provide for the proper sanitary equipment of the buildings, or parts of buildings, or premises so used, and also for the cleanly and sanitary maintenance and conduct of such establishments, or wagons used.
53 P.S. § 14423