Which of the following is not a sign of whip worm infection?

A metallic taste in the mouth is not a recognized symptom of whipworm infection. Whipworms, primarily affecting dogs, can lead to gastrointestinal symptoms, which include vomiting, changes in stool consistency (either loose or hard), and alterations in toileting habits, all related to their impact on the digestive system.

While gastrointestinal distress can lead to changes in appetite and possibly increased salivation, it does not directly cause a metallic taste in the mouth. This symptom is more commonly associated with other medical conditions or issues unrelated to whipworm infection, such as dental problems or certain medications. Understanding the typical signs of whipworm infection focuses more on the animal's digestive health rather than unusual sensory experiences, making the other signs more relevant to the infection's effects.