All of the provisions of the Agricultural Code of the State of California, as well as the rules and regulations made under authority of said Code, regarding the inspection and examination of any of the animals mentioned in Section 536 of this Article, as well as regarding the killing of said animals and the inspection, keeping and handling of the meat of said animals, and meatfood products thereof, except in so far as the same are changed or modified by this or other ordinances of the City and County of San Francisco, or by rules made under authority of said ordinances, shall apply to the inspection and examination and killing of said animals mentioned in said Section 536, and to the inspection, keeping and handling of the meat of said animals.