Figure 5
TEM ultrastructural analysis. Group E animals were examined at 21 DPI. (a) The nuclear envelope of alveolar macrophages lacked integrity. (b) Autophagosomes were seen in alveolar macrophages. (c) Lymphocytes in mesenteric lymph nodes were decreased. (d) The chromatin in splenic lymphocytes had migrated towards the margin of cells. (e) Numbers of splenic lymphocytes were decreased. (f) Mitochondria in liver cells were swollen, with the number of mitochondrial crista decreased or absent. (g) The majority of organelles in hepatocytes were decayed. (h) Nuclei of glomerular vascular endothelial cells were pyknotic.