Bovine Mineral Deficiencies: Welfare Science and Prevention

Key Welfare Facts

Mineral deficiencies cause diverse welfare impacts from reduced immunity to reproductive failure and neurological disease.
Selenium deficiency causes white muscle disease in calves, a painful condition causing progressive muscle degeneration.
Copper deficiency causes swayback in calves, poor coat quality, and immunosuppression in breeding cattle.
Iodine deficiency causes goitre and reproductive failure, with severe consequences for neonatal lamb survival.
Forage mineral analysis and targeted supplementation prevents deficiencies without risking toxicity from over-supplementation.
Soil type and geographic variation means mineral supplementation must be tailored to local conditions and feed analysis.

Welfare Assessment

Mineral deficiencies cause significant preventable welfare compromise. Working with a vet to analyse forage and blood mineral status, then designing targeted supplementation programmes, prevents deficiency disease without the welfare risk of mineral toxicity.

What You Can Do

Carry out regular blood and forage mineral analysis to identify herd deficiencies
Work with a vet to design targeted supplementation based on identified deficiencies
Use boluses, injections, or water supplementation appropriate to the severity and timing of risk
Monitor supplemented animals to confirm correction and avoid over-supplementation of toxic minerals like copper