Mineral deficiencies in livestock cause significant suffering that is preventable through appropriate supplementation and nutritional management. Key deficiencies vary by region and production system.
Mineral deficiency welfare is a preventable cause of significant farm animal suffering. Selenium-responsive white muscle disease causes weakness, inability to stand, and painful muscle degeneration in affected lambs and calves. Copper deficiency produces neurological damage in lambs before birth, causing the swayback condition with permanent locomotion impairment. Grass tetany from magnesium deficiency causes sudden-onset muscle spasms, convulsions, and death in cattle. All these conditions are preventable with appropriate nutritional management tailored to regional soil and forage mineral content. Regular soil and blood testing, combined with targeted supplementation, represents good preventive welfare practice in livestock farming.