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The objective of the study was to determine the influence of Czech Fleckvieh cow‘scondition before parturition on chosen blood biochemical indices in perinatal period andat the beginning of lactation. The study was conducted on 38 multiparous cows 3–14 daysprepartum. The cows were selected with respect to body condition score (BCS): BCS>4points (group I, n=18) and BCS<4 points (group II, n=20). Blood was collected at 3–14 and1–2 days prepartum and 1–2, 21 days postpartum and analyzed for lipid-carbohydrate, proteinparameters and enzymatic activity. Cow‘s condition, milk yield and composition were alsoestimated. Changes in Czech Fleckvieh cow‘s condition in a transition period do not haveany clear influence on milk yield and composition. An excessive BCS before calving leads toits higher decrease at the beginning of lactation and may indirectly point to a higher energydeficiency in the first period of lactation. It is confirmed by glucose concentration in bloodserum decrease (P<0.01) in 3rd week of lactation when compared to cows with a propercondition before calving (3.39 vs. 2.45 mmol/l). Overnormative condition before calving alsonegatively influences the content of triacylglycerols, alkaline phosphatase and total bilirubinin blood serum in the first days postpartum. TAG transport from liver to blood is impaired atthe beginning of lactation in cows with high condition prepartum. The study demonstratedthat in Czech Fleckvieh dairy type cows intensified lipolysis and ketogenesis in perinatalperiod do not take place pointing to high adaptation possibilities of their metabolism

The influence of condition on the metabolic profile of Czech Fleckvieh cows in the perinatal period