Peculiarities of compensatory functions inactivation in the body of hens with dermanyssiosis

The study of the mechanisms of formation, implementation and peculiarities of physiological compensatory and adaptive reactions inactivation in the body of animals under the influence of extreme environmental factors is an urgent problem in biology. Parasitizing of D. gallinae in Hy-Line cross laying hens was considered as an extreme stress factor. However, evident morphophysiological changes in the blood of hens with dermanyssiosis were revealed. The phase of decompensation (exhaustion) of the compensatory and hematopoietic function of blood in birds with D. gallinae was established, which is associated with a decrease of erythrocyte level by 1.4 times (p