Dynamics of some biochemical indicators of blood of calves affected with subclinical rickets

The article presents the results of a biochemical study of the blood of young cattle, prone to the development of rickets. As you know, this disease remains relevant at the present time, despite numerous studies in this direction. In many regions of our country the problem of rickets is particularly acute, to such regions is the Leningrad Region. This is due, first of all, to the almost universal transition to year-round stabling of animals, as well as to poor natural insolation in our region. We formed two groups of calves for 10 animals aged 3-3.5 months - experimental and control. During the experiment, the test group calves were administered vitamin D3 in the form of the drug "Akvadetrim" (active substance -cholecalciferol) at a dose of 15 000 units every other day for five weeks. The drug was administered voluntarily by mouth along with a piece of bread. Calves of the control group did not receive vitamin preparations. All calves were examined before the beginning of the experiment, blood from the jugular vein was also selected for the study on the following parameters: the concentration of total calcium, ionized calcium, inorganic phosphorus. A laboratory study showed that the calves' blood indices were not significantly different at the beginning and at the end of the experiment. We can conclude that the study of the blood of calves with subclinical rickets is of little informative, which is associated with the peculiarities of calcium and phosphorus homeostasis. Constants of blood are maintained by the body in sufficiently rigid limits until the last moment.

телята, рахит, кровь, кальций, биохимия, calves, rickets, blood, calcium, biochemistry

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