According to the Association of American Feed Control Officials (AAFCO), animal by-products in pet food may include parts obtained from any animals that have died from sickness or disease, provided they are rendered in accordance to law. Cow brains and spinal cords not allowed for human consumption under federal regulation 21CFR589.2000 due to the possibility of transmission of BSE are allowed to be included in pet food intended for non-ruminant animals.the Association of American Feed Control Officials In 2003, the AVMA speculated changes might be made to animal feed regulations to ban materials from "4-D" animals – those who enter the food chain as dead, dying, diseased or disabled.Canada Wraps Up BSE Investigation
