Abstract
The article presents experimental data on the dynamics of hematological blood parameters (number of erythrocytes, leukocytes, hemoglobin concentration) of pheasant chicks (Phasianus colchicus colchicus) incubated from eggs of different weights for 1-60 days. Hematological analyses revealed that with increasing age of pheasant chicks at the age of 1-30 days there was a decrease in the number of erythrocytes and leukocytes, hemoglobin concentration and in the blood of pheasants at the age of 60 days there was an increase in the number of marked indicators. The reason for the sharp decrease in the number of erythrocytes in the blood of pheasants hatched from eggs of large mass can be explained by the fact that the average life span of these cells is 7 days. Therefore, physiological anemia is registered on day 10. Then gradually increases the activity of hematopoietic organs, the number of erythrocytes also increases. This pattern is also registered in the blood of chicks hatched from eggs of medium and light weight. The presented information can be used in assessing the physiological state of pheasant chicks.
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