HEPATIC DISORDERS IN FISH CAUGHT IN THE RIVERS OF NAKHICHEVAN AUTONOMOUS REPUBLIC
Abstract
We have investigated the histopathological state of the liver tissue in two species of fish - carp and goldfish caught in rivers Araz (Araks) and Arpachay. The total catch included 26 fish: 14 from the Araz river (8 crucian carp and 6 goldfish) and 12 from the Arpachay river (6 fish of each species). Histological examination was carried out after staining the sections with haematoxylin and eosin. The state of the liver tissue of the fish caught in the Araz river was generally in line with the norm. At the same time, we have observed the following changes: studies of crucian carp show accumulation of starch in hepatocytes and congestion of blood in small blood vessels (stagnation), whereas the studies of goldfish indicate accumulation of starch as well as fibrosis of gallbladder channel (one case). In the fish caught from the Arpachay river we have observed the following: crucian carp are characterized by general stagnation in the small blood vessels (stagnation), the presence of single melanoma-macrophage centers and hemosiderin deposition, starch accumulation, necrosis of individual cells or groups of cells, whereas goldfish are characterized by pyknosis of nuclei and hydropic vacuolization, impaired trabecular organization, acentric location of the nucleus, stagnation, moderate hypertrophy of hepatocytes and starch accumulation.
About the Authors
А. Ахундов
Нахичеванский государственный университет
Russian Federation
Russian Federation
Т. Агаев
Институт физиологии им. А.И. Караева НАН Азербайджана
Russian Federation
Russian Federation
Э. Рустамов
Институт физиологии им. А.И. Караева НАН Азербайджана
Russian Federation
Russian Federation
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