[Effect of ultraviolet-irradiated milk on biochemical indices in the blood serum of calves].

Studies were carried out to establish the effect of ultraviolet in vitro treatment of milk, using special device, on the state and changes of some biologic indices of blood in calves in feeding them with milk within the age interval of 10 to 70 days. The irradiated milk was found to have a favourable effect on the physiologic state of calves, their development, and daily weight gain. Useful changes took place also with regard to the albumin-globulin ratio index which consisted in the rise of the gamma-globulin fractions to the detriment of alfa-globulins. The content of vitamin D was enhanced and made more stable in the serum over the entire experimental period.