Profilul lipidic și proteic la vaci în perioada de tranziție și lactație timpurie

Abstract

In dairy cows the peripartum period involves endocrine and metabolic changes to compensate for the increased energy requirement aggravated by reduced feed intake. Cows adjust to the resulting negative energy balance with the mobilization of body lipids and proteins that, if excessive, could lead to many transition disorders compromising the its health status. The aim of this sstudy was to evaluate the dynamic changes in serum cholesterol, triglycerides and protein profiles in eleven dairy cows during the peripartum period. For each cow body condition score (BCS) measurements as well as blood sampling was carried aut 20-15 days before calving and on days 12, 30, 45 and 60 after calving. Blood samples were tested for serum triglycerides, total cholesterol (Total-Chol), high-density lipoproteins (HDLs), total proreins and albumins.