Study of blood parasites in Gallus gallus domesticus (Linnaeus, 1758) in Gulberg town, Karachi.

Abstract

There were different blood parasites in avian blood. Different blood parasites were observed in Gallus gallus domesticus. We observed 50 blood samples of Gallus gallus domesticus in Gulberg town. 35 samples were infected with different blood parasites and 15 samples were uninfected in which 5 samples of female and 10 samples of males. In 24 samples of female chickens (70%) infections were noticed and in males 11 samples (30%) infection of haemoparasites were noticed. In infected samples of female chicken, we observed 3 different haemoparasites; leukocytozoan (80%) haemoproteus (5%), aegyptianella (15%). In male chicken, all were infected with leukocytozoan. They were all extracellular and they were mostly rounded in shape. Some were microgametocytes and some were macrogametocytes. Some leukocytozoan were flagellated.

During the examination of blood smear of Gallus domestic some extracellular elongated gametocytes were observed. Roundish shape poly microgametocytes were observed. The RBC’s of the host cell form a narrow dark violet color and also a thin and oval shape with a clear nucleolus.

Aegyptianella infection was noticed in blood smear of chicken. They were intracellular and extracellular.  Some extracellular Aegyptianella and some intracellular Aegyptianella infection were observed during examination of blood smear of chicken. In our results only the female samples were infected (15%) with aegyptianella and no male samples were infected (0%). Haemoproteus was intracellular parasite and can be invaginated in the nucleus of erythrocytes. Haemoproteus also be observed in our study in the nucleus of erythrocyte of infected blood of Gallus gallus domesticus.