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Monitoring the health of dairy herds is central to the assessment of animal health and welfare. The aim of this study was to analyse hematological and biochemical parameters in Holstein-Friesian dairy cows depending on the management system.Thirty cows from the foundation stock with an average annual yield of 6500-7000 l of milk were selected for the experiment. The cows were characterized by similar...
The objective of this study was to examine the association between β-hydroxybutyrate (BHBA) and glucose, calcium (Ca), phosphorus (P), and vitamin C concentrations in dairy healthy and with subclinical ketosis cows during an early lactation period. The blood from 99 healthy cows and 26 sub-clinically ketotic cows within the first two months of lactation was sampled. Serum concentration of BHBA was...
The objective of this study was to determine the effect of propylene glycol supplementation as powder top dressing during the transition period on selected blood parameters in dairy cows and to evaluate the optimum time of the administration of this glucose precursor. Forty-eight Holstein-Fresian cows were divided into four groups: control with no glycol supplementation, glycol administered from day...
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