In Ovo Vaccination Systems Benchmarked for Accuracy
A 2025 report details how precise egg identification and injection improve chick health and reduce vaccine waste in hatcheries.
Updated on Oct. 15, 2026 in Pet Health
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A 2025 comparative report by Zoetis evaluates the efficacy of different in ovo vaccination technologies for hatchery operations. The data highlights how precision in egg identification and vaccine delivery directly impacts production efficiency and chick health.
Why it matters
Accurate in ovo vaccination is critical for protecting chick health and reducing costly vaccine waste in commercial operations. These findings underscore why precise injection sites and reliable egg identification are essential for maintaining effective poultry production standards.
Zoetis reported a 99.6% site-of-injection accuracy rate for its Embrex technology, significantly outperforming Device Brand A at 86% and Device Brand B at 77.4%. While the Embrex system successfully identified 100% of infertile eggs, other brands showed higher rates of vaccine application to nonviable eggs.
The players
Zoetis
An animal health company that develops vaccines, medicines, and diagnostic products for livestock and pets.
The details
In ovo vaccination administers vaccines directly to developing embryos inside the egg, typically occurring at 18 days and 12 hours of incubation. Accuracy is determined by whether the needle successfully delivers the vaccine into the amnion or the embryo itself. Advanced systems improve outcomes by screening eggs for viability, ensuring vaccines are not wasted on infertile or early-dead eggs.
Timeline
2025: Comparative trials of vaccination technologies took place.
18 days and 12 hours of incubation: Timing for the Embrex trial injection process.
The Home Front
This performance evaluation reflects a broader industry move toward high-precision automation in poultry production. By quantifying site-of-injection accuracy, these benchmarks help shift hatchery management toward data-driven systems that minimize waste and improve overall flock health.
For those involved in poultry logistics or small-scale farming, these findings emphasize the importance of tracking equipment accuracy in your hatchery workflow. Regularly auditing your equipment's success rate in identifying egg viability can significantly lower operational costs and improve bird health outcomes.
The takeaway
Reliable hatchery technology is essential for ensuring that every embryo receives proper immunization. Poultry managers should prioritize systems with verified high site-of-injection accuracy to minimize the loss of viable eggs and optimize production efficiency.
Further reading
For more on maintaining animal health standards, visit our Pet Health section.
Source note: This article includes information reported by Farmers Review Africa.
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