Randomized field trial on the effects of on-arrival intranasal vaccination against bovine coronavirus on pneumonia and average daily gain in beef-on-dairy calves.

Clinical Context

Peer-reviewed veterinary literature continues to shape everyday decision-making for production animal practice, especially when new evidence clarifies diagnosis, treatment selection, monitoring, or clinical outcomes.

What the Study Evaluated

A study published in Journal of dairy science in 2026 evaluated randomized field trial on the effects of on-arrival intranasal vaccination against bovine coronavirus on pneumonia and average daily gain in beef-on-dairy calves..

Key Findings

This randomized clinical trial evaluated the effect of upon-arrival intranasal vaccination against bovine coronavirus (BCoV) on pneumonia risk in a beef-on-dairy veal production system. Secondary objectives were to assess the effect vaccination on lung ultrasonographic cure, clinical bovine respiratory disease (BRD), average daily gain (ADG) and cold carcass weight (CCW). Belgian blue beef x Holstein calves (n = 217; age 14-21days) from multiple dairy farms were fattened in a single veal calf facility. On arrival, Immunoglobulin G (IgG) and serostatus for major respiratory pathogens were determined, and calves were randomized by weight and...

Why It Matters for Veterinary Professionals

For veterinary professionals, the practical value of this work lies in how the findings may support more structured clinical assessment, clearer monitoring, and more informed decisions for production animal practice.

Practical Interpretation

The results should be interpreted in the context of the study design, population, inclusion criteria, and clinical setting. Application in practice should consider patient-specific risk factors, available diagnostics, local standards of care, and clinician judgment.

Clinical Takeaway

Overall, the study adds useful evidence for clinicians seeking to align daily practice with current veterinary research while maintaining a balanced, case-by-case approach.

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