Orange “B” an important mark

By Dr. Michael Payne, UC Davis, School of Veterinary Medicine and Director, CDQAP

Effective July 30, veterinarians using barbiturates to euthanize livestock must mark the forehead with an orange “B” that is at least 4 inches in height.

Barbiturate solutions are a humane and effective method of euthanasia. Trace amounts of the chemical found in animal feed or pet food, however, can threaten a rendering company’s standing with the Food and Drug Administration.

Livestock industries broadly supported this new policy to protect the continued availability of rendering services. The new requirement does include horses, which have been problematic in the past. This does not include domestic dogs, cats, and pet birds. The complete text of the new requirements for veterinarians can be found here.