The moment the treatment stops being effective and the disease-causing factors increase in the flock, causing things to get out of control despite following the instructions of technicians and specialists and using medications and pharmaceutical compounds as the consequences appear, there are no results from all attempts. After that, the disease worsens, production declines, the total number of birds falls, and setbacks and losses occur… At this point, you must follow the correct and practical procedures by identifying risk areas and studying success levels, selecting success factors, and using optimal preventive methods to vaccinate against disease-causing factors and the viruses that lead to these disasters and diseases… Here, the use of vaccines derived from the same environment and the same disease-causing agent is crucial, as there are no different serological patterns for the Newcastle virus. The immunity level is what determines the flock’s resistance to the harmful Newcastle virus. All available vaccines will protect only the chickens, with the vaccine dosage, method of administration, and the vaccination program being the only important factors. Below are images of the first batch of Newcastle vaccines produced, which are currently in the Veterinary Department laboratories for registration and marketing purposes..
