Saga has thin soles. Even after 5 months in shoes, which was
supposed to help him grow sole (???), he’s got thin soles. Thin soles means
that he bruises very easily – and thus, he’s been constantly lame-ish for…
well, pretty much forever, it seems.
A little research on the Interwebs seems to indicate that
thin soles caused by two things – genetics and/or diet. I can’t seem to find
any research that shows there are specific lines where the horses have thin
soles (diagnosed on x-ray), but genetics seems to be the most accepted reason
for having thin soles. Whether or not genetics are playing a role in the
ongoing lameness issue, I don’t know, but certainly improving a horse’s diet can’t
hurt.
But the diet problem is extremely perplexing. I have three
other horses that eat the same hay and get nearly the same diet (or used to get
exactly the same diet), and they all have good soles and no ongoing lameness
issues. So why is Saga having problems???
(I should note that last fall I figured out that changes in
alfalfa every 2-3 weeks were causing growth rings in Saga’s feet, and that when
the hay was changed every ~3 months there would be another event line. Since
then I have stopped feeding alfalfa, switched to unmolassed beet pulp, and
managed to secure about 450 bales of the same hay. The feed-related growth
rings have all but disappeared, although he does have events lines where shoes
were put on or he was trimmed.)
I recently decided to change feed, from his unmolassed beet
pulp with a mineral supplement to a beet-pulp-based complete “senior” feed. The
NSCs of the senior were only 2% higher than the beet pulp, and overall the feed
provides a lot of extra stuff (probiotics, extra fat, and extra protein). Since
Saga tends to a bit of a hard keeper, I figured it might help him keep weight
on. Besides, Cash is on this feed and it somehow (mostly) cleared up his
ongoing diarrhea. Still not clear on why, but it worked.
So I started transitioning Saga to the new senior feed over
the course of last week. Since I’ve been turning the boys out for an hour or
two each night/early morning on grass, I’ve been checking everyone’s digital
pulse to make sure they’re not getting too much. Everything was fine… until I
got up to about 3 lbs of the new feed. Saga’s digital pulse kept getting
stronger with each feeding, despite being taken entirely off grass. Not
surprisingly, he was lame for my jumping lesson.
The change in feed clearly caused the increase in digital
pulse, which may have caused a minor laminitic episode and increased sole
sensitivity (NOTE: he’s got no rotation anywhere, I had him x-rayed). It’s possible that he also bruised his soles
out in the pasture stepping on a rock or whatever – without hoof testers, I don’t
know if his soles are sore. But the feed
change may be related to the soundness issue.
So, I took him off the new feed and went back to beet pulp
and the mineral supplement, which is actually a “light” feed that is fed at a
rate of about 2 lbs/day. I’ve had a few folks suggest an alternative supplement
with more protein (an actual ration balancer, as opposed to what I use now) to
see if that helped his feet at all. I picked some up today, so we’ll see if
that makes any difference. I also put him on Farrier’s Formula (yeah, I know, I’m
DESPERATE) about two weeks ago. No obvious difference yet, but hope springs
eternal, right?
Frankly, I’m running out of feed options. It’s pretty clear
that he’s very sensitive to changes in feed. If sugar/starch is causing the
thin soles and therefore the lameness, the only way I can get his total NSCs
lower is to soak his hay. But his hay is only 8.8% NSCs, so I’m not sure how
much of a benefit it would really be. Besides, I feed free-choice hay, and
soaking hay for everyone is not terribly practical.
Does anyone else have any suggestions? About the only thing
I haven’t done is to send off the hay and beet pulp analysis tags to an equine
nutrition place and have them mix up a custom supplement. Hell, maybe I should
try it?