This guide is designed to help field personnel in the proper use and administration of poultry vaccines. It is intended as an on-farm reference to offer standard operating procedures to improve delivery and efficacy of vaccines in order to optimize flock performance.
Vaccination Procedure Guide
Proper vaccination is an essential part of a good poultry management program and for the success of any poultry operation. Effective preventive procedures such as immunization protect hundreds of millions of poultry worldwide from many contagious and deadly diseases and have resulted in improved flock health and production efficiency.
Immunization cannot be a substitute for poor biosecurity and sanitation. Thus, vaccination programs may not totally protect birds that are under stress or in unhygienic conditions.
The primary objective of immunizing any poultry flock is to reduce the level of clinical disease and to promote optimal performance. Certain vaccines may also have an impact on human health (i.e. Salmonella vaccines).
For breeders – we also want to accomplish some additional goals:
A. Protect the bird (as a pullet and hen) against specific diseases.
B. Protect the progeny of the hen against vertical transmission of disease.
C. Provide passive immunity to progeny.
Poultry vaccines are biological products that induce an immune response to the specific disease causing agents. Depending on the vaccine, they can be administered in various ways, all of which are discussed in this manual.
Depending on the type of antigen in the vaccine, the birds’ immune system will react, creating a “memory” response of antibodies and immune cells. The more a bird is exposed to the same antigen, the greater the antibody response and resulting protection. This is the reason many flocks are vaccinated multiple times for the same disease – to maximize the immune system’s response.