Assessment of clinical and biochemical parameters in calves of the dairy period when introducing a feed additive into the diet

Abstract

This article examines the clinical health indicators of dairy calves, as well as data on laboratory tests of blood and urine, before and after conducting a scientific experiment on adding selenium and cobalt aspartate nanoparticles to their diet in the form of a feed additive. It was established that the hematological parameters of calves throughout the experiment did not go beyond the reference values for this type of animal. In the course of studying the biochemical parameters of the blood serum of calves, it was established that they, as well as the parameters of the clinical blood test, did not go beyond the physiological values for these animals throughout the experiment. At the same time, some differences were identified between groups of animals. Thus, a decrease in the activity of the alanine aminotransferase enzyme in calves of the first experimental group relative to control animals was reliably established. At the same time, a significant increase in the concentration of magnesium in the blood serum of experimental animals relative to control animals was established.