>Seems to me sometime back you referred
to a study done at Oregon St. on the average total amount of Se in the diet
required to maintain the Se in the proper range. Do you recall this and if so
what were the numbers?
8-10 mg per day. On
that subject, I had a long chat with the LMF rep at the PNER convention
last weekend about that very subject, and he indicated how frustrated his
company is about this. They've tried to use the Oregon State research to
support adding more selenium to their feeds, but FDA won't budge, as long as the
NRC continues to use their same old outdated figures. <sigh>
That was what triggered my comment in a previous post about it taking an Act of
God to update the NRC...
FWIW, I followed several horses for 2-3 years (some
for longer) by testing every few months, several of which had been
receiving the entire 8-10 mg per day as a supplement (in the face of our
extreme deficiency in central Oregon), and never even got one into the high side
of the normal range. But we could manage with that (once they got their
levels up--as I commented earlier, many had to have injectable selenium before
they seemed to assimilate the oral selenium) to keep their blood levels around
190-220 (normal being from 200 to 250).
