To treat or not to treat: diagnostic thresholds in subclinical helminth infections of cattle

Subclinical cattle helminth infections cause significant production losses in dairy and meat production industries.Available diagnostics are reviewed to correlate parasitic infections with output losses and likely benefits of selective anthelmintic treatment.Utilizing subclinical infection thresholds of helminth diagnostics and combining these with grazing management and other farm-specific data is essential for optimizing decision-making in helminth-infection management.