Endocrinopathies associated with colibacillosis in broiler and layer birds of Kashmir valley

Abstract

The current study focuses on the histopathological and histochemical alterations in adrenal glands and Pancreas of poultry (broilers and layers) in outbreaks of Colibacillosis. The birds (broilers as well as layers) belonged to various poultry farms in Srinagar and Ganderbal districts of Kashmir valley (Jammu and Kashmir, India). A total of 82 disease outbreaks were recorded from June 2015- July 2016, out of which 19 outbreaks of Colibacillosis were observed in broilers while only 2 outbreaks of Colibacillosis were noted in layers. Diagnosis was confirmed after conducting thorough post mortem examination. The disease was diagnosed grossly as well as through histopathological examination. On post mortem examination the adrenal glands and pancreas were properly collected from the carcasses of the birds and preserved in 10% neutral buffered formalin for fixation. The tissue samples were processed for routine paraffin embedding technique and 5 micron thin tissue sections were stained with Haris Haematoxylin and Eosin. Parallel tissue sections, selected on the basis of histopathological examination, were stained for histochemical observations. From the present study it could be concluded that any morphological or functional aberrations in the endocrine glands will definitely, therefore, affect the functional capacities of the target organs as well as the glands itself. Endocrinopathies co-existed with Colibacillosis in both layers as well as broilers, and were mostly of hemodynamic derangements. Hence an investigation into endocrine gland disorders in poultry needs attention for increasing the productivity and profitability from this enterprise.