Liver disease in dogs ranges from acute toxin exposure to chronic hepatitis. Early recognition, appropriate nutrition, and veterinary management can significantly extend quality and length of life.
Liver disease causes significant welfare compromise in affected dogs. Acute liver failure produces rapid deterioration with vomiting, severe lethargy, and neurological signs. Chronic liver disease develops insidiously, with dogs experiencing nausea, reduced appetite, and fatigue that owners may attribute to normal aging. Hepatic encephalopathy — where toxins normally cleared by the liver accumulate and affect brain function — causes disorientation, seizures, and behavioral changes that are distressing for both dogs and owners. Nutritional support is critical: protein quantity and quality must be carefully managed, with highly digestible proteins reducing the ammonia burden that drives encephalopathy. Copper-restricted diets are essential in genetically predisposed breeds. Early intervention and regular monitoring improve welfare outcomes substantially.