why are poultry birds and farm animals vaccinated

Q- Why are poultry bird and farm animals vaccinated?

Answer- In animal farms the poultry bird and farm animals vaccinated because vaccination helps animals to defence against disease and remains healthy.

Vaccination is very necessary for animals as vaccine not only provides immediate relief from the existing microbes but it mimics the antigen and also stimulates the immune cells inside the animal body to produce antibodies and avoid disease. 

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