Acta Vet. Brno 2012, 81: 113-117

https://doi.org/10.2754/avb201281020113

The effect of different macromineral intakes on mineral metabolism of sport horses

Branislav Gálik1, Daniel Bíro1, Marko Halo2, Miroslav Juráček1, Milan Šimko1, Peter Massányi3, Michal Rolinec1

1Department of Animal Nutrition, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Slovak Republic
2Department of Animal Husbandry, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Slovak Republic
3Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Slovak Republic

The aim of the study was to analyze the effect of different intakes of macroelements from feed on the mineral blood profile of sport horses. In the experiment which lasted for 12 months (6 months for each of the two periods), 14 sport horses with 2 types of feed rations were monitored. The blood was collected at the beginning of the experiment and every 2 months (three blood collections for each period). Feed rations had a negative effect on Ca (3.40 mmol·l-1 and 3.32 mmol·l-1) and K (3.2 mmol·l-1 and 2.98 mmol·l-1) concentrations in equine serum obtained from the second and third blood collection, respectively. Concentration of P (1.28 mmol·l-1 and 1.20 mmol·l-1) in equine serum obtained from the second and third blood collection, respectively, was higher (P < 0.05) compared to the first blood collection. Concentrations of Mg and Na were in reference intervals. In the 2nd period of experiment, feed rations were adjusted based on individual requirements of the monitored horses; the proportion of the mineral ingredient in the feed rations was lowered. More balanced concentrations of Ca, Mg, Na and K were detected in equine blood serum as a result of lower intake of the minerals from feed; the concentration of P was, except for one case, higher than in the 1st period. We observed a positive effect of individual ration compositions based on the results of blood mineral profile. The study describes for the first time the effect of a high and adequate long-term intake of macroelements on their concentrations in sport horses’ blood serum.

References

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