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RE: [RC] Blood test levels - Susan E. Garlinghouse, DVMI agree with Heidi's comments and my experience has been that even horses that seem 'normal' do better performance-wise on a higher plane of selenium than the current published recommendations. Any ride vet working in the PNW (and most in the W and PS) will tell you the same, and I suspect it's also true for other regions notoriously low in forage selenium---SE, Great Lakes, etc. I would also respectfully disagree with the recommendations made to decrease the current selenium intake level---I'd increase it, too, per Heidi's recommendation. There are potentials for toxicity, but you have to get pretty wild with the stuff for a long time to get to that level. The organic selenium yeast sources (and by 'organic' I mean bound to a protein/carbon-based unit, not organic in the no-pesticides-used sense) apparently have very little potential for toxicity over the inorganic sodium selenite sources, so I prefer the selenium yeast form. Last I checked, Platinum Performance has a good source that is included in the general wellness supplement (though too low IMO) or, more cost effectively, by itself as just straight selenium yeast where a pretty tiny amount will add a good additional level of selenium. A four-lb tub of the stuff will last a loooooong time. I like Heidi's recommendations of 8-10 mg a day for performance horses---my endurance mare that's working pretty hard gets 15 mg a day, and my competing dressage gelding squeaks by with a mere 10 mg a day. Both get regular blood work to verify their serum levels are in the 200-250 range. JMO. Susan Garlinghouse, DVM =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Ridecamp is a service of Endurance Net, http://www.endurance.net. Information, Policy, Disclaimer: http://www.endurance.net/Ridecamp Subscribe/Unsubscribe http://www.endurance.net/ridecamp/logon.asp Ride Long and Ride Safe!! =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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