Study on the Gross Pathology in Broilers Affected with Marek’s Disease in Commercial Broiler Poultry Farms of Hyderabad and adjoining areas, Sindh, Pakistan.

Abstract

Investigation was carried out to study the gross pathological changes produced by Marek’s disease in different visceral organs of the broiler birds during the study period 2009-2011 in commercial broiler farms of Hyderabad and adjoining areas, i.e Hyderabad, Hala, Tando Muhammad Khan, Tando Allahyar and Matyari, five forms were selected from each area. Clinical signs observed in infected birds during postmortem examination were included nervous derangement associated with paralysis of wings and legs, gasping, diarrhea and loss weight in most of the birds. Lymphogenous growth varied in different visceral organs, which included in liver, spleen, kidneys, in heart, in proventiculus and others organs