Farm Animal Welfare

Sheep Selenium and Trace Element Welfare

Selenium and other trace element deficiencies cause significant welfare problems in sheep that are largely preventable through appropriate supplementation.

Key Facts

Selenium deficiency causes white muscle disease in lambs, resulting in weakness and death
UK soils are largely selenium-deficient, making supplementation essential in most areas
Copper toxicity is an opposite risk - over-supplementation causes liver disease and death
Trace element status testing before supplementation prevents both deficiency and toxicity
Cobalt, iodine, and zinc deficiencies also cause preventable welfare problems in sheep

Welfare Considerations

Trace element welfare in sheep requires careful management of deficiency and toxicity risks simultaneously. Both under- and over-supplementation cause genuine welfare harm. White muscle disease in lambs causes weakness, inability to suckle, and death - a preventable welfare catastrophe. Routine monitoring of flock trace element status and appropriate targeted supplementation prevents suffering that is otherwise entirely predictable.

What You Can Do

Support sheep farming practices that include routine trace element status monitoring
Advocate for trace element welfare to be addressed in farm assurance and veterinary advisory standards
Learn about the selenium and copper welfare risks specific to sheep production in the UK