What type of behavior can indicate a potential health issue in a working dog?

Sudden changes in appetite or energy levels can be strong indicators of potential health issues in a working dog. When a dog exhibits a notable decrease in appetite, it may signal underlying health problems such as gastrointestinal distress, dental pain, or systemic illnesses that could be affecting the dog's overall well-being. On the other hand, an unexpected increase in appetite, particularly accompanied by lethargy or a lack of energy, can suggest conditions like diabetes or hormonal imbalances.

Energy level changes are equally telling; a working dog that is suddenly lethargic or disinterested in activities they normally engage in may be experiencing discomfort or illness. Conversely, hyperactivity when it is out of the ordinary can also indicate health issues, possibly related to anxiety or metabolic problems.

In contrast, excessive barking or growling could be responses to environmental stressors or changes rather than direct indicators of health issues. Improved performance in training typically suggests a dog is thriving and healthy, and excessive playfulness, although it may require monitoring for behavioral qualities, generally suggests well-being and does not indicate health concerns. Thus, focusing on sudden changes in appetite and energy levels provides essential insights into the dog's health status.