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proper timing and proper administration
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What you’ll learn
- vaccination principales
- optimum administration
- avian immunology and vaccine response
- SPRAY VACCINE APPLICATION
- DRINKING WATER VACCINE DISTRIBUTIO
- EYE DROP VACCINE APPLICATION
- IN OVO INJECTION
- iNTRAMUSCULAR INJECTION
- TRANSFIXION (SCARIFICATION; WING-WEB STAB)
This course includes:
- 1 hour on-demand video
- Full lifetime access
- Access on mobile and TV
- Certificate of completion
Requirements
- poultry farming interest
- Description
- Immunization through vaccination is a commonly used
- method of reducing the risk (increased ID50) and consequence
- (reduced pathogenicity) of bird or flock exposure to a disease-causing agent..
- Vaccination is the practice of administering live and/or killed vaccines which have been modified to minimize
- disease manifestation yet maximize immunity.
- the primary purpose of immunization is to raise
- the ID50 of the flock to prevent clinical disease following
- subsequent challenge.
- While some vaccines are given to protect
- that individual bird against disease,
- others are given to pass the
- protection on to the next
- generation, and others are given to prevent disease in the hen
- and subsequent transmission of the disease to the chick
- Vaccines and vaccine programs vary widely in their
- effectiveness, and this is frequently by design. Some vaccines
- are designed to incite high levels of immunity to protect birds
- in the face of aggressive endemic disease challenges, such as
- vvND.
- These vaccines may cause a mild form of the
- disease themselves but are deemed appropriate and
- useful because of the risk associated with eventual infection of the
- deadly field pathogen.
- Vaccine selection and how they are programmed
- frequently becomes an exercise in risk management and cost
- efficiency.
- Local conditions must always be
- considered when evaluating and critiquing a
- vaccination program.
- A second reason for the vaccination
- of poultry flocks is to hyper immunize hens to maximize
- maternally derived antibody passed through the egg to the
- hatching progeny.
- Chicks frequently receive up to 3 weeks of protection from maternal anti-
- bodies, allowing their immune system to mature to a level capable
- of eliciting an efficient active immune response if exposed to a
- potentially harmful virus or bacteria.
- Antibodies are not always completely protective but for
- viruses such as infectious bursal disease (IBD), many areas of the
- world have found maternal antibodies a very useful tool in IBD
- prevention and control.
- The success of vaccination does not rest solely with the manufacturing or research of
- vaccines. More important is the maintenance of the cold chain, protection of
- the vaccine from the elements, and the correct application of the vaccine to the
- bird.
- vaccination programs should be documented
- for each operation by the responsible veterinarian and
- operations manager. All vaccines must be stored at the
- correct temperature. Most vaccines require
- refrigeration at 2°C to 8°C
- Some vaccines, mostly killed oil
- vaccines, can be safely stored at
- room temperature. Some vaccines
- need to be stored at temperatures
- below 0°C..
- Vaccines are adversely affected by
- exposure to sunlight and heat. Vaccines must be administered
- using suitably cleaned equipment and be given to every bird in
- the defined epidemiological unit
- Live vaccines are widely used throughout
- the world because they are commonly effective when mass
- applied, and they are relatively economical.
- immunity from live vaccines is generally
- short-lived, particularly following initial
- exposure. Some exceptions to this exist for
- vaccines such as for infectious laryngo-
- tracheitis, fowl pox, and Marek’s disease,
- which give long-lived immunity.
- Inactivated vaccines or killed vaccines used in poultry are
- generally whole bacteria or virus preparations combined with
- an adjuvant that are designed for subcutaneous or intramuscular
- injection
- They are frequently, but not always, used in
- commercial egg layer and breeding birds to
- stimulate long lasting immunity and/or antibody levels to specific antigens.
Who this course is for:
- poultry farm owner,poultry science students,veterinarian,all interested in poultry farming
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