Sheep Footrot: Managing a Painful and Preventable Flock Disease

Footrot is one of the most painful and costly diseases in sheep farming. Effective prevention through vaccination, foot bathing, and culling of carriers can dramatically reduce flock prevalence and suffering.

Key Facts

Footrot is caused by the bacterium Dichelobacter nodosus and causes severe lameness in sheep worldwide
It causes separation of the hoof horn from underlying tissue, with a characteristic foul smell and intense pain
Severely lame sheep are unable to graze normally, leading to weight loss and secondary welfare problems
Footrot is highly contagious and can spread rapidly through a flock in wet conditions
Vaccines against Dichelobacter nodosus are available and effective at reducing disease prevalence significantly
Regular foot bathing with zinc sulfate or formalin solutions reduces transmission when conditions favor infection

Welfare Considerations

Footrot is widely recognized as one of the most significant welfare problems in sheep farming, causing acute and chronic pain that profoundly impairs the ability of affected animals to move, graze, and perform normal behaviors. Lame sheep show reduced feed intake, weight loss, poor reproductive performance, and behavioral changes consistent with chronic pain. Despite its prevalence, footrot remains underdiagnosed and undertreated on many farms because affected animals are difficult to catch and treatment is labor-intensive. The welfare and economic case for prevention is overwhelming: regular vaccination, foot bathing, and rapid identification and treatment of lame animals can reduce flock prevalence dramatically. Eradication programs using vaccination and culling of chronic carriers have been successful in several countries.

What You Can Do

Implement a footrot vaccination program in sheep flocks where the disease is endemic
Establish regular foot bathing protocols during wet seasons to reduce bacterial spread
Train stockpeople to identify lame sheep early and prioritize prompt treatment
Adopt a mobility scoring system to systematically monitor and record lameness in sheep flocks
Consider eradication programs based on vaccination, treatment, and culling of chronic carriers