Abstract
The purpose. To study state of natural resistance and breeding capacity of cattle in conditions of moderate chronic radioactive irradiation in the remote period after Chernobyl disaster. Methods. Radiological probes are carried out of surface contamination of animals, milk, litter, feedstuffs, water as well as clinical-and-gynecologic examination of cows. Duration of independence-, service- and between- pregnancy periods is specified. Biochemical and hematological indexes of blood are studied. Results. At animals delivered from “clean” zone and grown in radioactively contaminated area in due course the amount of erythrocytes is diminished. Indexes of the leukocytic blood count at animals from “low-purity” zone were within the limits of norm, with offset to minimum values. Conclusions. At animals grown under the influence of radiation effect of small intensity indexes of blood are on lower limit of norm. Adult animals delivered in zone of radioactive impurity are more stress resistant as compared to aboriginal ones, but in the course of time this variance almost peters. Animals grown in “low-purity” zone were unhealthier, more often and longer were ill with various forms of endometritis and mastitis.
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