Extended Salmonella Protection for Laying Hens: A New Era in Poultry Health
Laying hen producers now have access to extended protection against salmonella, thanks to recent approval for an updated vaccination schedule for Elanco’s AviPro Salmonella Duo vaccine. This development addresses the evolving needs of the poultry industry, particularly as hens are increasingly kept for longer laying periods.
The Challenge of Long-Term Salmonella Control
For fifteen years, AviPro Salmonella Duo has been a key tool in safeguarding poultry against Salmonella Enteritidis (SE) and Salmonella Typhimurium (ST). Yet, with modern laying hen operations extending the productive lifespan of their flocks, maintaining consistent immunity throughout the laying cycle became a growing concern. The updated vaccination schedule directly tackles this challenge.
Joost Boerrigter, a poultry veterinarian at Elanco, explains the rationale behind the change: “We’ve received approval for a vaccination schedule during lay for our AviPro Salmonella Duo vaccine. This approval offers more flexibility, helping poultry producers better protect their flocks with a four-dose vaccination plan. This update is fully focused on providing long-lasting immunity to laying hens.”
A Four-Dose Approach to Enhanced Immunity
The new schedule introduces a fourth dose administered during the laying period, around the 50th week of life. This booster significantly extends the duration of protection against both SE and ST.
- S. Enteritidis Protection: Extended to 100 weeks of age (50 weeks post-final vaccination).
- S. Typhimurium Protection: Extended to 94 weeks of age (44 weeks post-final vaccination).
Zero-Day Withdrawal: A Benefit for Producers
A crucial advantage of this approval is the zero-day withdrawal period following the fourth vaccination. In other words producers can administer the dose without interrupting the supply chain, as there’s no required waiting period for eggs or meat from hens after the fourth dose. This minimizes economic disruption and ensures a continuous flow of product to market.
The Elanco Food Safety Programme (FSP) is designed to help poultry producers prevent and control salmonella outbreaks. The FSP uses a unique algorithm to generate a Food Safety Index (FSI) score for individual farms, measuring their relative risk of salmonella contamination. This program guides targeted interventions throughout the egg production process, from chick to table.
The FSP assesses key factors including current biosecurity measures, general poultry health management, infection pressure, and team awareness of salmonella. It provides recommendations and management support to help producers deliver safe food from healthy animals.
Did you know? Robust monitoring protocols are essential for preventing salmonella outbreaks. The Elanco FSP helps producers establish these protocols effectively.
Future Trends in Poultry Health and Salmonella Control
The evolution of the AviPro Salmonella Duo vaccine schedule reflects broader trends in the poultry industry. Increased focus on preventative health measures, driven by consumer demand for safe food and a desire to reduce antibiotic use, is likely to continue. Expect to see further advancements in vaccine technology, including potentially more targeted and longer-lasting immunizations.
Data-driven approaches, like the Elanco FSP, will become increasingly critical. Producers will rely on sophisticated risk assessment tools and monitoring systems to proactively manage salmonella and other pathogens. Integration of digital technologies, such as sensors and data analytics, will enable real-time monitoring of flock health and environmental conditions, allowing for rapid intervention when necessary.
a holistic approach to biosecurity will be paramount. This includes not only strict hygiene protocols but also comprehensive training for farm personnel and a focus on minimizing external sources of contamination.
FAQ
Q: What is the benefit of the fourth dose of AviPro Salmonella Duo?
A: The fourth dose extends the protection against S. Enteritidis to 100 weeks and S. Typhimurium to 94 weeks of age.
Q: Is there a withdrawal period after the fourth vaccination?
A: No, there is a zero-day withdrawal period, meaning no waiting is required before using eggs or meat from vaccinated hens.
Q: What is the Elanco Food Safety Programme (FSP)?
A: The FSP is a scientific, internationally tested tool that helps poultry producers prevent and control salmonella outbreaks by assessing risk factors and providing targeted interventions.
Pro Tip: Prioritize biosecurity measures on your farm. This is the first line of defense against salmonella and other pathogens.
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