Immunoprophylaxis of avian infectious bronchitis in industrial conditions

Abstract

The article includes the serological investigation about maternal and post vaccination level of specific antibodies titres against bronchitis diseases virus. For vaccination were used following strains: “H-120”, and “4/91”, which were administrated with drenching water, by aerosol method and by spray method. The blood serum samples were collected from poultry enterprises in the country such as: poultry enterprise SRL “Puiu de Aur”, village Stoianovca, district Cantemir, SRL ”Pasărea Argintie”, village Ciorăscu, poultry enterprise from Ialoveni, Orhei, Anenii-Noi. After that the blood serum samples were sent to the Veterinary Diagnostic Center. The level of antibodies titres was established with ELISA test. The level of antibodies titres varies between positive and negative limits.