AbstractProductive cows metabolism violation reasons are sugar-protein ratio, calcium and phosphorus balance disorder and also the lack of carotene, the nutrient content of microelements (cooper, cobalt, manganese and zinc) amount which do not satisfy the necessity of these microelements in cows.
Vitamin and mineral metabolism violation in cows are characterized by appetite changes (lambitus), hypotonia of front parts of stomach pale mucous membranes (anaemia), skin elasticity decrease and dryness, the skin layer brightness decline, rough skin, the spine shape change (lordosis), enlarged joints change of hooves shape, cutting teeth loosening, the last tail vertebra displacement symptoms and also decrease of red blood cells in blood, hypohaemoglobinaemia, hypoglykaemia, hypocarotinaemia, hypophosphoremia, hypocalciemia, hypocobaltosis, hypocuprosis, the activation of acid phosphotaza ferment and increase of acidity in stomach fluid (acidosis) and decline of the number of infusorians.