Hatchery conditions for salmon eggs and fry significantly affect early welfare and may have long-term impacts on adult fish health.
Hatchery welfare encompasses both the immediate conditions for eggs and fry and the potentially lasting effects of early life experiences on adult welfare. Overcrowding, poor water quality, and stressful handling in hatcheries may programme stress responses that affect welfare throughout the production cycle. Improving hatchery conditions addresses both immediate and long-term welfare goals.