Based on the research and development programs of the center, the farm day was held with the participation of the agricultural extension management of the Organization of Agriculture - Jahad in West Azarbaijan Province and the agricultural extension management of the Organization of Agriculture - Jahad - Oshnavieh at the Rashkand rainbow trout farm under the title of "The role of biosecurity in the production of Specific Pathogen Free (SPF) fish and Monosex fish" in the direction of the projects carried out and the transfer of their applied results to the exploiters and fish farmers of the city of Oshnavieh which was presented by Dr. Ali Nekoui Fard who was the executer of the aforementioned projects.