Pathological and anatomatical changes in laying hens having ascaradiosis

Pathological and morphological picture of the organs and tissues of dead and involuntarily killed chickens with clinical signs of Ascaridia galli nematodes invasion was studied, macro- and microscopic pathognomonic changes typical for the underlying disease, as well as complications and causal relationship between them that had developed on their background, were established. Differential diagnosis of the main complications from infectious diseases with similar clinical and morphological signs was carried out. The objects of the study were laying hens kept in one of the household farms located on the territory of Emelyanovsky district, Krasnoyarsk Region. During 2019 the postmortem autopsy of 12 corpses of the birds was performed. During the study the material was collected for histological examination - tissue fragments of small and large intestines, pancreas, liver, kidneys, spleen, heart, ovary, oviduct, sections which were made on Technom MZP-01 microtome, stained with Ehrlich hematoxylin and eosin...