On the issue of milk fever of cows and measures of their prevention

Abstract

The article presents the results of numerous studies of milk fever of newborn dairy cows, mainly: the pathogenesis of the disease, the degree of appearance, as well as prevention methods. The degree of manifestation of milk fever mainly depends on the concentration of extracellular calcium and the ability of the homeostatic system of the body to make up for its balance. Main methods of prevention are feeding of diets with low calcium level which is 40-50% of the recommended standards for 10-12 days before calving; an increasing of the magnesium level in the diet to 0.35-0.40% of dry matter; dietary supplement is 50g of anhydrous phosphorus per head per day for the last 28 days of pregnancy; intramuscular injection of vitamin D at a dose of 5 million IU for 5-7 days before calving, as well as the accounting of balance of cation-anion difference in feed; a desoldering of 100g sugar and 40g of crushed chalk in the last two months of pregnancy three times a day; the using of lactoserum which is Biotech; inclusion in the diet of dairy cows at 100 g per day of monocalcium; applying of mineral bolus before and after calving.The main ones are "Calcibolus", "Calcitope bolus", "Calcium Extra Bolus", "Calcium Intensive Bolus". Despite numerous studies of the milk fever of newborn cows and the development of ways to treat and prevent this pathology, the issue of the effective supply of cows with macronutrients during the transit period remains open and relevant.