Serbian poultry study links Salmonella trends with biosecurity gaps

Version 2 — Full analysis

A new study in Veterinary Record Open takes a closer look at Salmonella in Serbian poultry production from 2020 through 2025, combining surveillance results from farms, hatcheries, and slaughterhouses with farmer feedback on biosecurity. Its topline findings are straightforward: broilers showed the highest positivity rate, at 5.8%, Salmonella Enteritidis was the leading serovar, and seasonality significantly influenced detection. Together, those findings point to a persistent zoonotic and production challenge that sits at the intersection of diagnostics, farm management, and food safety. (journalmeattechnology.com)

The paper lands in a Serbian poultry sector that has been dealing with Salmonella control for years. Earlier Serbian literature has already described S. Enteritidis, S. Typhimurium, and S. Infantis as important serovars in poultry and along the food chain, while more recent slaughter and meat studies from Serbia have continued to flag contamination as an ongoing public health concern. In August 2025, Serbian authorities also announced the seizure of roughly 40 tons of potentially unsafe chicken meat after Salmonella was detected, underscoring that surveillance findings can have immediate regulatory and commercial consequences. (niv.ns.ac.rs)

What makes this study especially useful is its attempt to connect pathogen occurrence with the realities of implementation. The surveillance data suggest broilers are a particular pressure point in Serbian production, while the farmer-perception component helps explain why gaps can persist even when the industry understands Salmonella risk in general terms. That framing is consistent with wider poultry biosecurity research: a 2024 European interview study found that farmers often report high overall compliance, but weak spots remain around visitor and vehicle entry, cleaning verification, and certain between-cycle hygiene measures. The same study found that lack of time, financial constraints, limited training, and uncertainty about the benefits of some measures were common reasons for non-implementation. (journalmeattechnology.com)

The broader science also supports the paper’s emphasis on layered prevention. A FAO/WHO expert meeting on non-typhoidal Salmonella in poultry concluded that no single control measure is sufficiently effective on its own and emphasized stringent biosecurity, sanitation, and hygiene at all production levels. A systematic review of pre-harvest Salmonella sources similarly found that chicks, feed, and the poultry-house environment, including rodents and beetles, are major contributors to flock colonization and spread. In other words, the Serbian findings fit a larger evidence base that favors integrated control rather than one-off fixes. (cdn.who.int)

There was limited direct public commentary on this specific paper in the search results, but related expert literature points in a consistent direction. Recent coaching and interview studies in Europe suggest that farmer behavior can improve when biosecurity guidance is tailored, practical, and reinforced over time, rather than delivered as a one-time checklist. That matters because Salmonella often causes limited obvious disease at flock level while still creating downstream food safety and regulatory risk, making motivation and communication just as important as technical recommendations. (pubmed.ncbi.nlm.nih.gov)

Why it matters: For veterinarians, this is a reminder that surveillance data are most useful when paired with implementation insight. If broilers are the highest-risk production category in this dataset, then advisory efforts may need to focus more sharply on broiler-specific workflows, seasonal risk windows, and the practical barriers that keep farms from fully adopting control measures. Veterinarians serving poultry systems are often the bridge between laboratory evidence and day-to-day farm decisions, so studies like this can help refine where to push hardest: traffic control, pest management, hatchery and house hygiene, downtime and disinfection verification, and communication that makes the public health and business case clear. (journalmeattechnology.com)

The study also matters beyond Serbia. Salmonella remains a classic One Health problem, linking flock health, slaughter hygiene, meat safety, and human illness. For mixed-animal veterinarians, public health veterinarians, and food-animal practitioners, the paper is another example of why farmer perceptions shouldn’t be treated as secondary data. If producers see measures as too expensive, too time-consuming, or not clearly beneficial, compliance will likely plateau even when the microbiology argues for tighter controls. (pubmed.ncbi.nlm.nih.gov)

What to watch: The next signal will be whether Serbian institutions or industry groups translate these findings into targeted broiler-focused interventions, seasonal surveillance adjustments, or more structured biosecurity training, and whether follow-up studies show movement in both positivity rates and farmer uptake. (srbija.gov.rs)