CHANGES IN LIPID AND MINERAL PROFILES IN COWS WITH SUBCLINICAL AND CLINICAL KETOSIS

Abstract

The aim of the present study was to establish the changes in lipid and mineral metabolism in cows from the Holstein breed with ketosis. Blood samples were obtained from 158 cows for determination of β-hydroxybutyrate (ВНВА), non-esterified fatty acids (NEFA), total cholesterol (TC), high-density lipoproteins (HDL-C), low-density lipoproteins (LDL-C), triglycerides (TG), calcium (Ca), phosphorus (P) and magnesium (Mg). The cows were divided in three groups: pregnant, recently calved and lactating. Target cows were classified as healthy (C), affected with subclinical (SCK) and with clinical ketosis (CK) depending on their blood BHBA levels. The levels of NEFA in cows with SCK were elevated, while in cows with CK – decreased. The quantities of total cholesterol and HDL-C decreased, while the blood levels of LDL-C and TG were increased in cows with SCK and CK ketosis. The parameters of the mineral profile Ca, P and Mg were decreased in cows with SCK and CK.