It shall be unlawful for any person to sell, offer for sale, barter or give away baby chickens or ducklings under five weeks of age or rabbits under two months of age in less than one dozen lots as premiums, novelties, prizes, pets or toys, or to color, dye, stain or otherwise change the natural color of baby chickens or duckling or rabbits, or to bring or transport the same into the City; provided, that this section shall not be construed to prohibit the sale or display of baby chickens or ducklings or rabbits in proper facilities that comply with the provisions of the Sanitary Code or other rules and regulations of the Board of Health by breeders and those engaged in the business of selling for commercial breeding and raising purposes. (Code 1962, § 8-5)