Eimeria Species Causing Mortality of Domestic Chickens in the Mountain-Shirvan Region of Azerbaijan and Effects of Eimeriasis on Blood Parameters

This study provides important data on the distribution of Eimeria species in domestic chickens in the Mountain-Shirvan economic region, as well as the hematological and biochemical consequences of the invasion. It was determined that associated invasions caused by E. acervulina, E. maxima and E. mitis lead to high mortality in chickens, accompanied by severe clinical and pathological course of the disease. In hematological analyses, a significant decrease in the number of erythrocytes, hematocrit and hemoglobin levels (p<0.05) was recorded, while an increase in individual leukocyte fractions was observed. In biochemical parameters, a decrease in the activity of ALT and AST enzymes was revealed, while ALP activity significantly increased (p<0.05). A decrease in the total protein level in the blood serum was also recorded. The results clearly demonstrate the systemic impact of eimeriosis and its negative impact on the overall health of birds. These data once again highlight the need to take effective measures to combat the invasion on poultry farms in the region.