[QUOTE=RaMa;8274760]
If you are thinking you “don’t drug” because you “only” give your horse products like “perfect prep” you should see this latest study comparing the effect of these oral magnesium products and Ace on a horses reaction … I totally agree that shows should NOT be giving PP or Quiessance as prizes at shows - certainly sends a mixed message.
Below is reference to a research study that looked at the effect of oral magnesium on the reaction time of horses…
The results were that the 10g dose of Mg, had the same effect in slowing reaction time to a stimulus as the normal (0.04mg/kg) dose of Ace, and significantly slowed the reaction time as compared to controls. In the further paper the authors also showed that Mg was normally cleared by the kidneys within 24 hrs of dosing but that the 10g dose had a significant effect on clearance of Ca and other electrolytes. The time to maximum blood levels of Mg were 102 hrs post dosing.
Refs:
Magnesium aspartate supplementation and reaction speed response in horses.
J.A.Dodd, G.Doran, P.Harris, G.K.Noble. Proceedings of 2015 Equine Science Society, JEVS, Vol 35,Number 5, May 2015. Pg 401.[/QUOTE]
That study was based on magnesium aspartate, not magnesium sulfate or oxide, which are the formulations added to feed. One of the results from the study was that feed companies may start using the magnesium aspartate in feed instead of magnesium sulfate or oxide. The study was done by Waltham, which is an animal nutrition company. The ingredients in perfect prep and quiessence only list “magnesium” without specifying so I think you are leaping to a conclusion at this point to link this study to those supplements unless you know for a fact that perfect prep and quiessence contain magnesium aspartate. Have you asked either of the manufacturers?
ETA: A little further research shows that the magnesium used in the two supplements you mentioned is magnesium oxide, not magnesium aspartate.