Which piece of information is NOT legally required on a radiographic film?

The correct answer indicates that the breed of the patient is not legally required on a radiographic film. In the context of veterinary practices and regulations, essential information usually pertains to the identity of the patient, the clinic or practice where the radiograph was performed, and the date the image was taken.

The patient's name and owner's name are crucial for identifying the individual animal and its owner, ensuring proper record-keeping, and facilitating any needed follow-up care. The date of the radiograph is important for tracking the timeline of diagnostic images, especially when monitoring a condition over time. The name of the practice helps in identifying where the procedure was conducted, serving as an official record.

While including the patient's breed may be helpful for contextual identification among practitioners, it is not a legal requirement like the other details listed. This distinction highlights the focus on information that directly impacts patient management and legal accountability in medical documentation.