Gut health in farmed salmon is a critical welfare and production parameter influenced by diet, pathogens, and environmental conditions.
Gut inflammation causes chronic discomfort and reduces feed conversion efficiency, indicating both welfare and production impacts. Fish with compromised gut health cannot absorb nutrients efficiently, affecting growth and immune function. The transition to plant-based diets in salmon feed has created new gut health challenges that require nutritional solutions. Gut health monitoring should be incorporated into routine welfare assessment.