Influence of mineral-protein feed additive on the characteristics of the bone tissue of the vertebrae of cattle in alimentary osteodystrophy

Abstract

In the experiments, it was found that in case of alimentary osteodystrophy of dairy cattle the use of the mineral-protein additive causes an increase in dimming during X-ray examination of the marginal epiphysic zone of the 5th caudal vertebrae by 9.4% (p <0.05); there was an increase in the mass and density of the 5th caudal vertebrae by 7.1% and by 9.6%, respectively; the stability of the bone structure of the spinal canal of the vertebrae to mechanical pressure increased by 7.9%, and the stability of the body of the caudal vertebrae increased by 25.1% (p <0.05); the level of magnesium and calcium in the bone substance of the vertebrae increased significantly by 40.2% (p <0.05) and 6.0% (p <0.01), respectively; histological examination revealed an increase in the density of the structure of bone tissue by 48% and the number of osteocytes - by 42.2%.