Evolving to reach the invasive stage of helminth eggs, being found themselves in the environment, the availability of suitable temperature and humidity is very important. On the basis of scatological studies and autopsies, along with the infection of turkeys with helminths Ascaridia dissimilis, Heterakis gallinarum and Raillietina tetragona, as well as a higher intensity of invasions in the summer seasons, were found in birds kept in the foothill areas of the region. So, on the basis of the parasitological studies, carried out the extensiveness of large roundworms (ascarids) in turkeys was determined in the following specimens of helminths 19.2%, intensity (II) 3–21, heterakis EI 26.6%, II 4–23, raillietina EI 22.4%, II 3–12.
In studies, carried out in different climatic zones in the age groups of turkeys, it was found that the rate of invasion extensiveness of turkeys with the causative agents of A. dissimilis, H. gallinarum, and R. tetragona in the foothill zones was relatively high, in comparison with the mountainous and low-lying zones. The invasion intensity was observed in turkey chicks at the two-three months of age.
The article talks about mono- and mixed invasions and the intensity of parasites in the body of turkeys, causing changes in various forms in blood parameters. Blood tests of naturally infected birds show that although the number of erythrocytes and hemoglobin in sick birds increased, there was a decrease in leukocytes and an increase in the erythrocyte sedimentation rate. And this was more prominently shown in birds infected with mixed two and three helminths, compared with birds infected with monoinvasions.
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