This storage allows a better bio availability and a better bio activity of the athlete horse.
Organic selenium is better stored in muscles than non organic selenium (selenite).
For the mare and its foal selenium supply plays an important role in health.
Mares having received organic selenium 55 days before and 56 days after foaling have a higher Se status after foaling (Kentucky University 99).
For that reason colostrum is richer in selenium and antibodies (IgG), the same for selenium concentration in blood serum of the foal.
Antibodies concentration (IgG) of the foal is also higher (Kentucky University 99).
Trials have been carried out by the University of Kentucky in 1999 on mares at foaling, and they showed that time taken for expulsion of placenta was reduced to half.