Breaking Down The Stigma of Footrot with Effective Management & Identifying Early

Managing Foot Rot in Sheep: Effective Strategies for Healthy Flocks

In an episode with Jim Walsh from Coopers Animal Health we partnered with to bring the episodes to you. Jack Cresswell's podcast has been going for 7th seasons this year in 2026. Let's get into managing foot rot in sheep.

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Lameness caused by foot rot remains one of the most persistent and challenging issues in sheep farming. If you're a sheep producer concerned about managing foot health, understanding the latest approaches and tools can help you reduce outbreaks, improve animal welfare, and boost productivity. In this article, we delve into the causes of foot rot, vaccination strategies, and practical farm management techniques to keep your sheep flock healthy.

Understanding Foot Rot and Its Impact on Sheep Farms
Foot rot is an infectious bacterial disease that causes lameness in sheep, leading to discomfort, weight loss, decreased wool quality, and even death if untreated. The disease is primarily caused by bacteria from the Dichelobacter nodosus family, which thrives in moist, warm environments.

Key Points:
Foot rot varies in severity and virulence depending on the strains present.
Management is complicated by the presence of multiple bacterial strains and regional differences.

Endemic in areas with high moisture, but seasonality offers opportunities for control and eradication.

Proper identification and understanding of foot rot are essential. Sheep can carry bacteria silently, and infected animals often show characteristic hoof deformities or underrunning soft tissue.

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Why this matters: Effective management reduces animal suffering, prevents economic losses, and improves flock productivity. Recognizing early signs and understanding regional dynamics help tailor control routines.

Vaccination: A Critical Tool in Foot Rot Control

Vaccines like FootVax have become fundamental in controlling foot rot. They don't necessarily eradicate the bacteria but can significantly reduce infection rates and bacterial spread.

When and How to Use FootVax
Timing is critical: Administer the vaccine before the high-risk period, typically before wet seasons or lambing. A common protocol involves two injections, four to six weeks apart, with the booster before the onset of wet weather. Cross-bred sheep often have longer protection (up to 16 weeks), while Merinos might require more frequent vaccinations (10-12 weeks).

Program example:
Vaccinate ewes pre-lambing to protect lambs and reduce pasture contamination.
For existing infections, vaccinate infected mobs to curb bacterial spread.
Follow up with footbathing and inspection to supplement vaccination efforts.

Limitations and Benefits
While vaccines aren’t a silver bullet, they:
Reduce infection intensity by over 50%
Slow bacterial spread by about 80%
Help eradicate virulent strains if correctly integrated into management
It's recommended to combine vaccination with good farm hygiene, footbathing, and targeted treatment for best results.

Why this matters: Using the right vaccination schedule and combining it with other control strategies can dramatically lessen outbreaks, leading to healthier, more productive sheep.

Practical Farm Management Strategies for Foot Rot Prevention
Successful foot rot management hinges on proactive, consistent practices:
1. Biosecurity and Quarantine
Always isolate newly purchased sheep for at least 2 weeks. Monitor incoming animals for signs of foot rot or lameness. Treat or cull chronically infected sheep to prevent spread.
2. Footbathing and Inspection
Implement regular foot inspection, especially before and after high-risk periods. Use footbath's with zinc sulfate or other approved solutions, ideally 10-20 meters long, every 2-4 weeks. Focus on removing chronically infected animals; sometimes selling or culling infected sheep is the most practical solution.

3. Pasture Rotation and Spelling
Maintain paddock rotations that allow pasture to dry out for at least 14 days—bacteria only survive 7-14 days in dry conditions.
Avoid overgrazing and encourage pasture drying to minimize bacterial load.

4. Physical Infrastructure
Invest in yards, laneways that facilitate foot cleaning and reduce contamination.
Use designated pathways and footbaths at entry and exit points.

5. Selective Breeding
Use genetic selection to breed sheep with increased resistance or resilience to foot rot.
Cull animals that consistently develop severe foot problems.
Why this matters: An integrated approach combining vaccination, hygiene, pasture management, and genetics offers the best chance of long-term control.

The Role of Diagnostics and Ongoing Surveillance
Identifying the specific bacterial strains in your flock through laboratory testing supports targeted management. Swabbing infected feet and sending samples for serotyping can reveal whether high-virulence strains are present, informing vaccination and treatment decisions.

Additional tools:
Use scoring systems with visuals for quick on-farm assessment.
Monitor for recurrent infections to evaluate control efficacy.
Engage veterinarians or industry advisors for accurate diagnosis.
Why this matters: Regular surveillance ensures timely responses, reduces outbreaks, and helps assess whether eradication efforts are succeeding.

Future Outlook and Policy Developments
Regional policies and regulations are evolving, increasingly favoring disease control and management over complete eradication due to the complex nature of foot rot. There's a shift towards: Greater access to vaccines in control programs.

Reduced stigma around foot rot infections to encourage early reporting.
Adoption of biosecurity standards that emphasize preparedness.
Efforts to improve genetics, develop serospecific vaccines, and implement smart infrastructure investments will enhance industry-wide progress.

Key Takeaways for Sheep Producers
1. Start early: Implement a vaccination program before high-risk periods.
2. Inspect regularly: Routine foot inspections catch problems early.
3. Invest in infrastructure: Footbaths and well-designed yards reduce bacterial build-up.
4. Practice biosecurity: Quarantine new animals and monitor for signs of infection.
5. Genetic resilience: Select for sheep breeds and lines less susceptible to foot rot.
6. Seek expert advice: Engage with vets and industry advisors for tailored strategies.

Managing foot rot requires a multifaceted approach, combining vaccination, good farm management, biosecurity, and genetic selection. While eradication can be challenging, effective control minimizes impact and improves animal welfare.