Question: I have been using the “cold” Newcastle vaccine for my birds, however I am thinking of moving to the thermal stable version. Being paranoid knowing that it is important to stay consistent for a flock – does it make sense for me to move at this time to the thermal stable version
Answer by Dr. David Omoding of Quality Chemicals (U) Ltd
Your fears and apprehension are understandable. However, be assured that moving to the thermal stable version would be the right move for the reasons below:
- Vaccine failure is a major issue for any “cold” (thermolabile) vaccine from point of manufacture, thru transit, to storage at the pharmacy premises, transportation to your premises etc. Wipe that uncertainty away by using a thermostable vaccine.
- The Thermostable strain is called I2 and it offers quicker, stronger, longer lasting immunity to poultry as compared to the cold La Sota, Clone, R2 strains. It might be bit more expensive but surely worth every penny. More can be found from http://www.fao.org/docrep/005/ac802e/ac802e04.htm.
In extensive systems (free range), one application is sufficient for the life of the bird including local birds while In intensive systems we advise one application every 3 months.