§ 96-j. Farmer and custom processors. This article shall not apply to any bona fide farmer who butchers his own domestic animals on his own farm exclusively for use by him and members of his household and his non-paying guests and employees, custom slaughterers, custom slaughtered meat, farm dressed meat, custom meat by-products, custom meat food products, and establishments where only such products are prepared, produced, processed or packaged, provided, however, that custom slaughtered meat, farm dressed meat, custom meat by-products and custom meat food products shall be identified as such in such manner as may be required by the commissioner by duly promulgated rules and regulations.