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Investigations of D-lactate metabolism and the clinical signs of D-lactataemia in calves
  1. I. Lorenz, DrMedVet1,
  2. A. Gentile, Dr2 and
  3. W. Klee, DrMedVet1
  1. 1Clinic for Ruminants, University of Munich, Sonnenstraße 16, D-85764 Oberschleißheim, Germany
  2. 2Dipartimento Clinico Veterinario, University of Bologna, Bologna, Italy

Abstract

Five clinically healthy calves received an intravenous injection of 25 g sodium D-lactate (223 mmol) in 100 ml sterile water and five control calves were given the same volume of 0·9 per cent sodium chloride. Two clinical examiners who were blinded to the status (test or control) of the calves observed that between eight and 40 minutes after the injections the calves that had received sodium-D-lactate could be distinguished with certainty from the control calves on the basis of their clinical signs, for example, an impaired palpebral reflex, somnolence and a staggering gait. One-compartment and two-compartment analyses of the changes in the plasma concentration of D-lactate, and its renal clearance, indicated that the calves metabolised considerable amounts of D-lactate.

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