US cattle research points to more targeted disease management

New US research is challenging established approaches to bovine respiratory disease and liver abscesses, pointing towards more targeted antibiotic use and improved management. Studies supported by the Foundation for Food & Agriculture Research suggest metaphylaxis may not be economically justified in many cattle groups, while blood biomarkers could help identify animals at risk of liver abscesses earlier.

Researchers at Kansas State University have developed models examining when whole-group antibiotic treatment for bovine respiratory disease delivers sufficient economic benefit.

Led by Dr Brad White, the analysis found that metaphylaxis did not provide enough health benefit to justify its cost in 72% of the cattle groups studied. Age and the severity of health challenges were among the factors influencing whether treatment was economically worthwhile, highlighting opportunities for more targeted decision-making.

Separate research at Texas Tech University examined liver abscesses in beef-on-dairy cattle. The researchers found little evidence that genetic selection would provide an effective solution, instead pointing towards rumen health and management as important areas for prevention.

The project also identified blood-based markers capable of predicting liver abscesses with around 80% accuracy, potentially creating opportunities for earlier detection and intervention.

Together, the findings could support more targeted disease-management strategies while reducing unnecessary antibiotic use in beef production.