FEC Check: Development of a decision support tool to aid interpretation of gastrointestinal nematode faecal egg counts in sheep

Clinical Snapshot

Key Findings

• P Value: Not applicable for qualitative research

• Effect Size: 1916 users within 12 months post-launch

• Primary Outcome: Identification of barriers to FEC uptake and positive stakeholder feedback on decision support tool

• Nnt Or Sensitivity: User adoption rate demonstrates practical utility

• Confidence Interval: Not applicable for qualitative research

Clinical Application

High feasibility given digital tool format and demonstrated early adoption Highly relevant to Australian sheep industry; could complement existing ParaBoss resources and support sustainable parasite management practices aligned with industry resistance management strategies Veterinary practitioners, livestock advisors, and sheep farmers managing gastrointestinal nematode infections

Abstract

BACKGROUND: Gastrointestinal nematode infections are ubiquitous in grazing livestock worldwide impacting animal health and production. Faecal egg count (FEC) is an accessible diagnostic test that can guide the need for treatment. However, interpretation of FECs can be challenging. METHODS: A prototype decision support tool (DST) was developed using a 'traffic light'-style gradient of potential clinical impact on sheep FEC results. Focus groups were conducted with farmers, livestock advisors and veterinary clinicians to examine the barriers to FEC uptake and provide feedback on the prototype tool. RESULTS: Barriers to uptake for FEC testing included timeliness of reporting, lack of perceived need and knowledge gaps. The DST was well received at all focus groups, with simplicity and ease of use identified as key principles to drive uptake. At the 12 months post-launch, the DST had 1916 users. LIMITATIONS: Engagement with stakeholders with less familiarity with FECs may improve usability for a wider audience. CONCLUSION: The final DST developed here represents a practical resource to improve the interpretation of FEC results reported by farmers and other stakeholders. The initial uptake observed within the first year since launch is promising for the wider adoption of evidence-based parasite management.

References

1. 1.Geddes, E., Duncan, A., Lamont, K., Duncan, J. M., Bartley, D. J., Sargison, N., Kenyon, F., & Melville, L. A. (2026). FEC Check: Development of a decision support tool to aid interpretation of gastrointestinal nematode faecal egg counts in sheep. The Veterinary Record. https://doi.org/10.17605/OSF.IO/SQA4E