Which of the following is a clinical sign associated with Taro toxicity in rabbits?

Taro toxicity in rabbits is primarily associated with oral pain, which is linked to the presence of calcium oxalates in the plant. When rabbits consume taro, these calcium oxalates can cause irritation and a burning sensation in their mouths, leading to clinical signs such as oral pain. This discomfort can manifest as excessive drooling, difficulty in swallowing, or changes in eating behavior, as the animal avoids food that exacerbates the pain.

In contrast, the other choices generally do not reflect the specific effects of taro toxicity. Increased appetite may appear counter-intuitive since oral pain typically discourages feeding. Bright plumage is more relevant to bird species rather than rabbits, and frequent grooming is a behavior not specifically associated with ingested toxins in rabbits, particularly those related to taro. Therefore, recognizing oral pain as a clinical sign is crucial in diagnosing and managing cases of taro toxicity in rabbits.