Dr. Rezvani, the general manager of the Veterinary Directorate General of Mazandaran Province, along with a panel of experts visited visited the process of implementation of the vaccine production projects for yersiniosis and streptococcosis and the production of biosilage from the poultry wastes.After visiting the implementation of vaccine projects, it was decided that the results of the studies should be sent to the Deputy of Medicine and Treatment of the Iran Veterinary Organization in the form of a comprehensive report and the necessary consultations will be performed the Veterinary Directorate General of Mazandaran Province to expedite the work. Regarding the biosilage project, it was decided that the proposal and the preliminary report on the implementation of the project should be provided to the Veterinary Directorate General of Mazandaran Province and in order to expedite the process of obtaining the necessary licenses from the Iran Veterinary Organization, a representative of the Veterinary Directorate General of Mazandaran Province should also cooperate in the implementation of the project and periodic sampling should be conducted for a more accurate audit.