Blood lactate concentration as diagnostic predictors of uterine necrosis and its outcome in dairy cows with uterine torsion.

Abstract

In order to determine blood lactate concentrations (bLac) and their validity as a diagnostic marker in bovine uterine torsion, blood samples were taken from 54 Holstein cows with uterine torsion before the correction of torsion. bLac in a group of cows with and without uterine necrosis were 15.0 and 3.0 mmol/l, respectively (P<0.01). Moreover, bLac in a group of dead or culled dams and in that of survived dams were 10.2 and 3.1 mmol/l, respectively (P<0.01). Furthermore, the proposed diagnostic cutoffs for bLac based on ROC analysis for detection of uterine necrosis and poor prognosis in dams were set at >5.0 and >6.5 mmol/l, respectively. These findings suggest that in dairy cows with uterine torsion, an increase in bLac is a diagnostic predictor of uterine necrosis as well as poor prognosis in dams.