Detection of bicarbonate administration (milkshake) in Standardbred horses
1993
Auer, D.E. | Skelton, K.V. | Tay, S. (Racing Science Centre, Albion (Australia)) | Baldock, F.C. (Queensland Dept. of Primary Industries, Yeerongpilly (Australia). Animal Research Inst.)
Total plasma carbon dioxide (TCO2) concentrations were measured in Standardbred horses to determine criteria to discriminate between normal horses and horses with excessive TCO2 concentrations on raceday. TCO2 concentrations from stabled horses were distributed normally while pre-race TCO2 concentrations were not. The results indicate that about 50 horses per million are likely to have TCO2 concentrations greater than or equal to 35 mmol per L and that it is extremely unlikely that a normal horse would have a resting TCO2 concentration above 36 mmol per L. TCO2 concentrations were relatively stable in blood samples stored at 4 deg. C for 4 days, whereas the TCO2 in specimens stored at room temperature (25 deg. C) and at ambient temperature (16-28 deg. C) declined progressively over 5 days. The significance of sources of variation in TCO2 concentration in relation to the testing of horses for 'milkshake' administration are discussed.
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