[Pathomorphological findings in irradiated cattle].

There is a description of the finding in whole-body irradiated young cattle exposed to 60Co in the doses of 3.7 and 2.0 J kg-1 (370 and 200 rad).

[Clinical changes in whole-body irradiated cattle].

Clinical manifestations of an acute radiation sickness in groups of heifers of the age of seven to nine months, irradiated with a multipoint spatial 60Co source with the doses of 3.7, 2.0, and 1.

[Dynamics of early changes in the white component of the peripheral blood of whole-body irradiated cattle].

Some new findings regarded the dynamics of the changes in the white component of peripheral blood, particularly at early intervals in the case of three clinically differing doses of ionizing radiation were obtained. At the highest dose early nonspecific leucocytosis was recorded only six hours after the exposure. Significant neutrophili occurred in the case of all three doses beginning from the sixth hour.

[Biochemical indicator of post-irradiation injury in cattle].

A biochemical indicator of post-irradiation injury, recording the increased secretion of metabolites of nucleic acids in the urine of whole-body irradiated cattle in the first 6-12 hours after exposure was worked out. This test consists in the determination of deoxycytidine substances by means of the test with thiobarbituric acid after a previous isolation by means of ion exchange chromatography. A significant increase of the excretion of deoxycytidine substances which was proportionate to the dose of irradiation and made it possible to divide the irradiated cattle into animals showing light, medium, and severe forms of the irradiation sickness was found.