Experimental infection of broilers with Giardia lamblia parasite isolated from human.

Abstract

Twenty of broiler birds, 30 days age were experimentally infected with a dose about 25000 cysts per bird of G. lamblia parasite that isolated from human. This study was ensure the occurrence of the experimental infection with Giardia parasite in broilers for the first time in Iraq. The results exhibited that from a total of 20 birds, experimentally infected with the parasite, 15 birds were found infected (75%), comparison to the control group (20 birds) that not exhibited any case of infection. There was no significant difference in the rate of infection with the parasite between male and female. The prepatent period of infection was 5-8 days and the soft consistency of faces changed to liquid, as well as the results show that the scarping of duodenum mucous membrane was the best to detected the trophozoites of the parasite comparison to flotation method using zinc sulphate and with significant difference was p > 0.001. The excretion of the parasite cysts was continued for 30 days post infection and the rate of cysts excretion about 70 10³ - 190 10³ cyst per gram of faces