Poulvac CVI+HVT Marek vaccine like other frozen Marek vaccines is cell associated, meaning that it cannot survive alone outside the living cell like Lasota or Gumboro will. Because of this, some factors are very important to the survival of this vaccine virus and hence required for achieving successful vaccination of any flock.
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- Diluent Quality
Diluent contains the nutrient nourishing the cells (chicken embryo fibroblast cell) which are housing the Marek vaccine viruses and is also very good for bacterial multiplication. The vaccine is always in a hibernating / freeze-dried form in their package from manufacturing. Diluent quality becomes an issue the moment the vaccine is reconstituted. Poor diluent quality means the cells housing the Marek vaccines will die off soon after reconstitution, hence only the first few hundred birds will receive the real vaccine in every reconstituted 1000/2000 doses vials. To avoid this type of disastrous event, always observe the following requirements.
- Stored at room temperature and protected from light.
- Observe the diluent bags for color changes
Yellow= Acidic, Bacterial growth DO NOT USE
Red= Neutral OKAY
Magenta= Alkaline DO NOT USE
- Contamination
The process of reconstitution is a very critical one in Marek vaccine preparation. This procedure must be hygienic and aseptic as possible. Once a bacterial/yeast or any pathogen is introduced, the same nutrient meant for the cells will aid their rapid multiplication and eventual killing of the vaccine carrying cells. The use of hand gloves, nose masks, disinfected working surface and a clean environment is required for the reconstitution. A clean, closed and airtight room is required for reconstitution. All materials needed must be ready before starting reconstitution, no distractions, no delays, avoid phone calls.
Items for reconstitution
- Kits (18g needles and Syringes)
- Vaccine containers (liquid nitrogen can)
- Diluent quantity needed at room temperature
- Rule to measure liquid nitrogen level
- Water bath
- Timer
- Thermometer
- Waste bin
Poulvac Marek CVI+HVT from Zoetis
This product has been designed to cater for some of the quality issues associated with Marek vaccines globally.
- Color coded Diluent status shows you if the diluent is still viable for use or not, changing a diluent bag is far better than having an unprotected flock from an investment point of view.
- The diluent bag has also been designed to avoid contamination of the content, if all the hygienic procedures of the reconstitution is observed, this design will ensure that have a vaccine bag that id free of contaminants.
- Zoetis team will always be available to offer training and offer any other related assistance.
The procedure seems long and technical but following them with our support ensures quality service delivery for your business
OFFICIAL LAUNCH OF POULVAC MA CVI+HVT VACCINE
The Poulvac marek CVI+HVT vaccine has been registered with NAFDAC and is now available for sales in Nigeria through Zoetis authorized Poultry Vaccine distributors. Poulvac marek CVI+HVT has been officially launched on Wednesday, November 18, 2020. The event was attended virtually by Poultry veterinarians, farmers and dignitaries from the Federal Ministry of Agriculture and Rural Development and the Veterinary Council of Nigeria.
You can now purchase these products (1000DS & 2000DS) through Zoetis Distributors in Nigeria: Caesar & Jones Ltd – 0803 548 4276 and Chi Farms Ltd – 0802 089 6956, 0812 713 8650.
By
Dr Niyi Bankole (DVM, MSc Virology)
Field Diagnostic Manager, Zoetis-ALPHA
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