[Some important poultry diseaes]

aetiology anaemia anemia anemie aves de corral avian encephalomyelitis virus avian infectious bursitis avian leukosis bronchite bronchitis bronquitis diagnosis diagnostic enfermedad de gumboro enfermedad de marek etiologia etiologie infection leucose leucose aviaire leucosis leucosis aviar leukosis maladie de gumboro maladie de marek marek's disease noruega norway poultry symptome symptoms volaille