To preserve the Siberian roe deer, the most vulnerable species of the deer family, in conditions of high snow conditions, integrated methods of its biotechnical protection are necessary. The involvement of fallow lands in the biotechnical crop rotation, the creation of large forage areas is the basic basis for the conservation of this biological species in the anomalously critical periods of the winter cycle.

The problem of the formation of leukemoid reactions in cattle is considered. It is noted that such changes in the morphological composition of blood are most often characterized by a decrease in the quantitative content of lymphocytes while increasing the concentration of microphages (neutrophils). With the elimination of the cause that caused the manifestation of the leukemoid reaction of the blood, the morphological composition of the peripheral blood is restored to normal.