Most plant matter contain silacylic acid (including yucca, corn oil
apples, grains etc.) and/or gamma-oryzanol because they are plant
hormones - providing the growth control of plants. They or other plant
hormones are present in ALL plants - well duh. They have been ingested
by herbivores including horses since the first herbivore ate his first
plant.
While it is unclear who many companies uses the yucca extract most
commercial horse foods contain rice brand as a source of fat and hence
contain either silacylic acid or gamma-oryzanol. So in reality just
about every person that uses a commercial horse feed is in violation of
the AERC drug rule - isn't that sweet.
The first screw up was the band on mag sulfate - damn people had been
using that for years in an electrolyte. The AERC tapped danced out of
that one. What we have is an ill conceived drug rule based not on good
science but on good rumor, superstition, wives tails and maybe even
consultation with a local witch.
Time to actually publish a drug rule that is concise, consistent and
contains the compounds that actually would have a negative impact on
the horses and/or the sport not a drug rule that bans commercial horse
feed, apples, carrots, oats, etc.
Truman
k s swigart wrote:
Stefanie said:
The problem is, rice bran contains gamma-oryzanol, which
is also a prohibited substance.
I checked the AERC's list of prohibited substances, and, indeed, gamma-oryzanol is on it. Interestingly enough, it isn't just rice bran that contains gamma-oryzanol, wheat bran, corn and barley oil, and (get this) oats also contain it. And it is in a lot of other plants too.
It looks to me like gamma-oryzanol is another one of those substances that might have ended up on the AERC's prohibited substance list without giving due consideration to where it comes from. I don't think the AERC really intended to write a rule that prohibited participants from feeding oats to their horses. If so, it is a damned silly rule.
How do you handle this problem? Do you still
feed rice bran or feed containing rice products?
Personally, I don't feed rice bran but not because it contains gamma-oryzanol but rather because it contains a rather inordinate amount of phosphorus (which I would rather not mess with); however, I do feed oats (also contain phosphorus, but not as much as rice bran).
kat
Orange County, Calif.
:)
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“I maintain there is much more wonder in science
than in
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being true.” Carl Sagan
