Products


Introduction

Vaccines

  • Nobilis Salenvac

  • Nobilis Salenvac T

  • Nobilis SG 9R

Feed Additives

Nobilis Salenvac T trials and studies

Find information on cross protection and antibodies in eggs from vaccinated hens.

 

Cross Protection Studies

Efficacy of Nobilis Salenvac T against S. Heidelberg and S. Agona


Salmonella Typhimurium , S. Heidelberg and S. Agona belong to Group B in the Kaufmann-White classification scheme for Salmonella.

S. Heidelberg study

Method

  • Nobilis Salenvac T vaccinated birds and a control group of unvaccinated chickens were challenged with S. Heidelberg.
  • Salmonella shedding through faeces was monitored for 21 days.

Results

The graph below compares shedding of S. Heidelberg from vaccinated and unvaccinated chickens.

% shedding of  S Heidelberg in vaccinated and unvaccinated chickens

Conclusion

Nobilis Salenvac T reduces shedding of Salmonella Heidelberg

S. Agona study

Method

  • Nobilis Salenvac T vaccinated birds and a control group of unvaccinated chickens were challenged with S. Agona.
  • Salmonella shedding through faeces was monitored for 21 days.

Results

The graph below compares shedding of S. Agona from vaccinated and unvaccinated birds.

% shedding of  S Agona in vaccinated and unvaccinated chickens

Conclusion

Nobilis Salenvac T reduces shedding of Salmonella Agona.

 

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Antibodies in the eggs of vaccinated hens

Vaccination of laying hens with Nobilis Salenvac T results in Salmonella antibodies in the eggs. A study showed that growth of Salmonella Enteritidis was significantly reduced in these eggs compared to eggs from unvaccinated hens and hens vaccinated with a live S. Enteritidis vaccine.

For full details of the study see the poster presented at the 13S International Symposium Salmonella and Salmonellosis, 10-12 May 2006, St Malo, France.
Vaccination of laying chickens with an inactivated Salmonella vaccine reduces Salmonella growth in eggs. (pdf 46Kb)

 

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