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Influence of Marek's disease virus infection on the haematogram of broiler chickens |
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Marek's disease virus (MDV) infection in chickens is very common. We report the effects of MDV infection with a very virulent Australian isolate on various haematological parameters of broiler chickens. Packed cell volume (PCV), total erythrocyte count and the haemoglobin concentration were reduced by MDV infection. PCV was reduced the most. HVT vaccination provided limited or no protection against these MDV-induced effects. These data confirm that MDV induces pathological effects on myeloid as well as lymphoid cells. As PCV is simple to measure and depression occurs early in infection, it may provide an additional diagnostic tool for evaluating MDV status. |
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Proceedings of the Australian Poultry Science Symposium, v.16, p. 93-96 |
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