Clinical Testation of Effectiveness of Gallimune Vaccine 407 ND+IB +EDS+ART (Vaccine Against Newcastle Disease, Infectious Bronchitis, Egg Drop Syndrome and Rhinotracheitis) in Poultry in Farm Conditions

摘要

The recurrence of the syndromes and multietiological diseases confirms that even a small amount of stress or a slight metabolic disequilibrium may be potential disease factors which may lead to economic loss. Certain major factors must be taken into account during a survey of potential risks for respiratory diseases: the presence of respiratory pathogenic or partially pathogenic viruses, an increased number of secondary pathogenic agents, the common bacterial flora, any disequilibrium occured in the environment or various immunosupresive factors.