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Can laying hens be vaccinated against Salmonella during the laying period?

Published on: 04/18/2022
Author/s : Calier

Since May 2021, it has been possible to vaccinate long-cycle poultry against Salmonella during the production period. This benefit is due to the variation obtained for the Primun Salmonella E product, a vaccine produced by CALIER. The European agencies have considered that the extension of immunity generated by application in laying and the non-excretion of vaccine salmonellae in faeces ...

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April 18, 2022
I would like to know if any scientific paper in recognized journals have been published regarding the vaccination during laying of PRIMIUM CAL 10 strain and also what is the difference between PRIMIUM CAL 10 strain and ELANCO Sm24/Rif12/Ssq strain, which is recommended to be vaccinated only before the laying period.
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Jesús Rubio Jesús Rubio
Poultry Biologicals Project Manager
Calier Calier
Barcelona, Cataluna, Spain
April 26, 2022

Horacio Raúl Terzolo, thanks for your question
A trial to demonstrate not excretion of the vaccine strain and protection of Primun Salmonella E against field strains during laying period in commercial laying hens has been submitted and approved to be presented in the Mediterranean Poultry Summit (WPSA Congress). The congress will be held in June in Cordoba (Spain) and the paper will be available in June. However, the most important thing is that the European Medicine Agencies approved this application during laying period and gave the authorization to Primun Salmonella E for that use. More than any other congress, the authorization coming from the European Agencies is the highest recognition.

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May 1, 2022
Jesús Rubio thank you very much for the information.
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April 25, 2022
Salmonella in poultry kills birds and also gets transmitted through eggs.
If you are talking about a laying flock which is not exposed yet the vaccine can be given as a preventive measure.
If the flock is suffering, having mortality, treatment with antibiotics is the first choice. Vaccination of affected flock after successful treatment will help in long term protection of the flock.
If this is a breeder flock. Vertical transmission can occur through hatching eggs to day old chicks.
The flock should be treated infected even if there is no mortality in the adults.
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April 26, 2022
No can not be vaccination in laying period.
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Jesús Rubio Jesús Rubio
Poultry Biologicals Project Manager
Calier Calier
Barcelona, Cataluna, Spain
April 26, 2022

Vaccination during laying period depend on the type of vaccine. Obviously, using an inactivated vaccine or an injected live vaccine is not an option.
However, if you have a drinking water live vaccine authorized for use in laying period with no excretion, safe and with a good level of protection you can do it.
It is a decision of the veterinarian in charge and it all depends on level of infection.

On the other hand, obviously is not the same to use a SG9R vaccine or a Enteritidis vaccine.

So, we have to take into consideration all these factors.

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May 7, 2022
First, treat the infected flock, you may revaccinate using the killed vaccine if the flock stabilizes.
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May 23, 2022
Dears,

Thank you for all your comments.

Mr Rubio's contribution is primordial for field students and actors. Thank you very much and congratulations
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October 7, 2022
Sir
what is the protocol to be followed in vaccinating a pullet flock that might be a carrier or you may say subclinically infected ???
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Jesús Rubio Jesús Rubio
Poultry Biologicals Project Manager
Calier Calier
Barcelona, Cataluna, Spain
October 10, 2022
Dear Sir, thanks for your question
With our program, the recommended program is 3 doses during rearing period (1st week, 6 weeks and 16 weeks) and then a vaccination during prodution at 55 weeks.
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October 11, 2022
yes, vaccination can be given in laying.
for flock already infected, keep treating and go for killed vaccine.
for flock not suffering but under threat (there is problem in the neighbourhood) two live SG9R with three weeks intervaks. No antibiotic medication one week before and one week after vaccination.
for replacement flocks - live while growing and killed just before start of lay and mid lay..
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October 13, 2022
Dr Kotaiah Talapaneni
Thanks a lot for explanation
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Surinder Maini Surinder Maini
General Manager -Technical
October 13, 2022
For Indian Poultry Industry, it is more important to ensure the immune system in the birds is kept fit n fine, 365 days of the year, check mycotoxins n other immunosuppressors, then treat the flocks, wait for 4 to 6 weeks, test for salmonella, then think of the vaccine.
Ignoring immune system working n fitness, not protecting from immunosuppressors, and using vaccine during infection will b suicidal.
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November 11, 2022
In case of not infection ,can do vaccination..If infection present,first treat then suggest for vaccination.
Thanks
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November 21, 2022

Have you tried to increase the immune system of the animals so that they don't have to be vaccinated so much? Do you make feed with sufficient nutritional quality so that the animals have a strong immune system? Have you tried to give in the water of the animals efficient Em?
Vaccines and antibiotics and vice versa. This is how contaminated we all are and this is how people's diseases are caused by so much medicine given to animals in intensive farms.
A little more humanity, please.

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