Effects of oregano extracts, alone or in combination with other biomolecules, on growth performances and parasitological parameters of broiler chickens challenged with Eimeria spp.: a meta-analysis.
Clinical evidence update from Avian pathology : journal of the W.V.P.A
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 Avian pathology : journal of the W.V.P.A in 2026 evaluated effects of oregano extracts, alone or in combination with other biomolecules, on growth performances and parasitological parameters of broiler chickens challenged with Eimeria spp.: a meta-analysis..
Key Findings
Avian coccidiosis, caused by Eimeria protozoa, remains a major constraint in poultry production, prompting the search for alternatives to conventional anticoccidial drugs. Phytogenic feed additives, particularly oregano ( Origanum vulgare ) extracts rich in carvacrol and thymol, have emerged as promising candidates. This meta-analysis assessed the effects of dietary oregano supplementation, used alone or combined with other additives, on performance and parasitological outcomes in broiler chickens experimentally infected with Eimeria species. A systematic search identified eight studies published between 2003 and 2023, providing 16...
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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