Primun Salmonella E – Advanced Protection Against Salmonella Enteritidis in Layers
Salmonella Enteritidis is a major threat in layer farming. It spreads silently. It contaminates eggs. Moreover, it also affects public health. Therefore, effective control is essential. Primun Salmonella E offers a modern solution. This Salmonella Vaccine provides strong immunity against Salmonella Enteritidis. It also ensures safe egg production.
What Makes Salmonella Enteritidis Dangerous?
Salmonella Enteritidis can infect hens without visible signs. However, it still spreads bacteria. Moreover, it can contaminate eggs in two ways:
- Before shell formation (trans-ovarian)
- After laying through the shell
As a result, consumers may get infected.
Salmonella Enteritidis infects the intestinal tract. Then, it spreads to organs like the liver and ovaries. However, birds often show no signs. Still, they shed bacteria continuously.
More importantly, the bacteria can contaminate eggs. This happens in two ways. First, through trans-ovarian transmission before shell formation. Second, through shell contamination after laying.
As a result, contaminated eggs become a major source of human infection. Moreover, cross-infection spreads quickly within the flock through feed, water, litter, and equipment. Therefore, simple treatment is not enough. A preventive approach is essential.
Primun Salmonella E: Product Overview
Primun Salmonella E is a live attenuated vaccine. It is designed for layers and breeders. It provides a strong immune response, long-lasting protection, and safe use during production. Most importantly, it is authorized for use during the laying period in certain regions.
Key Benefits of Primun Salmonella E
Long-Lasting Immunity
Primun SE provides extended protection:
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- Up to 80 weeks after three doses
- Additional 40 weeks after a booster during laying
Protection During Laying
Unlike traditional vaccines, this Salmonella Vaccine can be used during egg production. As a result:
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- It bridges the protection gap
- It protects birds in late production
Zero Withdrawal Period for Eggs
Primun SE offers a major advantage: a zero withdrawal period for eggs. Therefore, farmers do not lose production.
Safe for Birds and Consumers
Thus, the vaccine is safe for both poultry and humans. According to the research data:
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- No vaccine strain in eggs
- No presence in internal organs
- No presence in cloaca
No Effect on Egg Production
Studies show:
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- Egg production remains stable
- No difference between vaccinated and control birds
Therefore, performance is not affected.
Reduced Shedding and Infection
Vaccinated birds:
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- Shed less Salmonella
- Show reduced organ colonization
As a result, farm contamination decreases.
Recommended Vaccination Schedule
For best results, follow this schedule:
- Day-old chicks → First dose
- 5–6 weeks → Second dose
- 13–15 weeks → Third dose
- 55–60 weeks → Booster during laying
Why Choose Primun Salmonella E?
This Salmonella Vaccine stands out because:
- It works during production
- It ensures food safety
- It supports long production cycles
Therefore, it is ideal for modern layer farms.




