Isolation and study of biological characteristics of nononcogenic chicken herpesviruses of Marek's disease, 2: In vivo characterization

antibodies anticorps anticuerpos bazo blood serum bolsa de fabricio bourse de fabricius bursa fabricii chickens enfermedad de marek feathers herpetoviridae lymphatic system maladie de marek nerf nerves nervios peau peso piel (animal) plumas plume poids pollo poulet rate sistema linfatico skin spleen weight