Pigeon pox, herpes virus infection, lymphomatosis, trichomoniasis, coccidiosis, ascariasis, capillariasis, cestodiasis, tracheitis, candidiasia, salmonellosis and mycoplas-mosis were diagnosed at Provincial Research Institute for Animal Health, Tansui, Taiwan from I 979 to I 982. Their pathologic changes were discussed in this report.
Borlinger bodies were easy to be found in pox cases. Centrilobular necrosis and eosinophilic intranuclear inclusion bodies were found in the cases of herpes virus infection. Various lymphocytes infiltrated in liver and lung in the cases of lymphomatosis. Massive necrosis of oral and esophageal or crop mucosa as well as of liver were found in the cases of trichomoniasis and candidiasia. Focal necrosis of liver and peritonitis were found in the cases of salmonellosls.