What are common signs of illness in livestock?

Loss of appetite, lethargy, abnormal behavior, and coughing are recognized as significant indicators of illness in livestock. When an animal is unwell, it may exhibit a decreased interest in food, leading to a noticeable loss of appetite. Lethargy often follows, as the animal lacks the energy or motivation to engage in typical activities. Abnormal behavior can manifest in various ways, such as aggression, isolation from the herd, or other deviations from normal conduct. Coughing can indicate respiratory issues, which are common health concerns in livestock. Collectively, these signs can signal that an animal requires closer observation and possibly veterinary care, making this option the most accurate reflection of common signs of illness.

In contrast, excessive energy and playfulness typically suggest good health rather than illness. Similarly, increased weight and vitality usually indicate that an animal is thriving. An improved coat condition often points to proper nutrition and health status, rather than signs of impending or existing illness.