Which of the following is NOT needed on a record card for a dog?

The choice that is not necessary on a record card for a dog is the dog's favorite toy. While understanding a dog's preferences can be beneficial for creating a more tailored and comfortable grooming experience, it is not critical information required for the primary functions of a record card, which typically focus on owner contact details, identification, and emergency procedures.

In contrast, having the owner's name is essential for establishing who is responsible for the dog and ensuring that the groomer can communicate effectively regarding appointments and care. The dog's name is also vital for identification, as it is how the groomer will refer to the pet. Lastly, emergency contact information is crucial in case of any incidents during grooming or if there are concerns that arise requiring immediate attention. These elements contribute significantly to the safety and proper handling of the dog during grooming sessions.