. Diseases of domesticated birds. Poultry; Poultry; Birds. 204 DISEASES OF DOMESTICATED BIEDS Lesions in wild birds. The organs according to Cardamatis, show characteristic alterations resembling those caused by malaria in man. The blood of sick birds is sometimes watery, less abundant than normal, pale, and coagulates slowly. The spleen is colored like. I^Q. 37. Hcemoproteus danielewsky in blood of the pigeon under different as- pects. 1, 2, red blood corpuscles containing small parasites; 3, red blood corpuscle containing a large female parasite; 4, red blood corpuscle contain- ing a large m
. Diseases of domesticated birds. Poultry; Poultry; Birds. 204 DISEASES OF DOMESTICATED BIEDS Lesions in wild birds. The organs according to Cardamatis, show characteristic alterations resembling those caused by malaria in man. The blood of sick birds is sometimes watery, less abundant than normal, pale, and coagulates slowly. The spleen is colored like. I^Q. 37. Hcemoproteus danielewsky in blood of the pigeon under different as- pects. 1, 2, red blood corpuscles containing small parasites; 3, red blood corpuscle containing a large female parasite; 4, red blood corpuscle contain- ing a large male parasite; 5, corpuscle with a female and a male parasite; 6, parasite after rupture of the corpuscle which had contained it (The nu- cleus of the cell is still seen coupled with the parasite) ; 7, male parasite with four flagella; 8, female parasite into which a flagellum is penetrating (fecundation); &, a free flagellum. Enlarged 1500 diameters. (Neumann) dhoeolate or darker and is always swollen to twice the normal size. This writer found turtle doves and lanners most susceptible. Iturbe and Gonzales note that while the hematozoa frequently have no ef- fect upon the host, the mortality may reach 90 per cent in Myiozetes texensis, Chlorophonia prettii and Sycalis flaveola. Transmission. AragSo observes that the natural transmitters of H. columhce in Brazil are Lynchia Iwicolor and Microlynchia persilla; in Algeria, L. maura; in the Transvaal, L. capensis. Direct inocula- tion from pigeon to pigeon fails. LBUCOCYTOZOA Leucocytozoa are blood parasites which so modify the appearance of the host cell that the identity of the latter is in controversy. Fan- tham inclines to the view that small mononuclear leucocytes are the cells invaded. Leucocytozoa have been observed in a large number of wild and domesticated birds. Among the latter, fowls, pigeons, ducks, ostriches and turkeys are known to be infested. In general they are of slight importance as disease Pleas
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