New horse regressing in behavior, at a loss

thistlethorn

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Hi everyone, I've long lurked on these boards and finally decided to sign up in order to solicit some advice. I wasn't sure if this fit better in the Training section so please move if so.

I bought a 4 year-old OTTB (track trained, not raced due to slowness) six months ago. She turned 5 last week. She is my first young horse, although not my first green horse -- 12 years ago I helped bring along an 8 year-old Arabian, untouched and intact (and quickly gelded). A few months prior to this OTTB I had adopted another mare who was PTS within 2 months of my ownership due to severe metastatic melanomas and was on the look out for another partner, hopefully with better luck this time. I've ridden and worked with horses on the ground for various trainers and am not new to the equine world, although yes, always learning :)

Anyway. Despite being just 4 and quite green, this OTTB was calm and sensible. Had several months let down before anything was done with her. Her previous owner, whom I know as a friend, regularly hauled her to new places to ride and she never put a foot out of line. Trusted her to carry her on hacks, by herself, while previous owner was pregnant! Stood calmly to mount, going pleasantly w/t/c, etc and so on. I have plenty of videos of her retraining process, and when I went out to ride her she was exactly as described. She passed the PPE. Young, yes -- but the disposition was there. With my trainer's help, I figured we'd be set...so I bought her.

After a settle/quarantine period of two weeks, trainer and I began teaching her how to long-line and briefly lunge (not to tire her out, but a good skill to have for various purposes). While she took great to long lining and ground driving, she tends to express some anxiety at lunging. Nothing terrible, but rears and then tearing around at first. Under saddle she was fine for a long while.

However, steadily and slowly, this mare has morphed into a different animal. As of last week, she no longer stands still at the mounting block, pawing with vigor and wiggling intensely. This is despite exercises to reinforce standing at the block. (Mounting and dismounting repeatedly, standing next to it and such). Brand new behavior. She screams and carries on whenever she is walked away from her neighbors in turn out, which indicates insecurity to me but is not something her previous owner ever noted; she is anxious and fidgety under saddle and chomping at the bit rather than carrying it calmly as she used to. She doesn't want to go forward. In any new arena/environment on our rather large facility she is almost unmanageable and prone to exploding on the end of the lead from even a dead stand still.

Her teeth were just done and even so, were fine. She is on the same feed she has always been on since retiring (alfalfa/grass mix in front of her 24/7, with a handful of low sugar senior feed for a magnesium and Vitamin E/selenium supplement); she has been scoped and treated for mild ulcers; she has had body work and Chiro out on regular 6 week intervals; her saddle has been custom fit to her; she is turned out full time, by herself but has horses in the field right next to her; her bit has not changed (regular snaffle). While she is prone to bucking and rearing for short periods on the lunge line, she hasn't offered to do this under saddle, but she is very obviously not focused on her rider and is a ball of nerves. She is such a different horse from the one I bought 6 months ago that I am completely perplexed, as is the friend I got her from (who flips OTTBs as a side job). The barn is large but pretty quiet, but perhaps something about it isn't sitting well with her?

Riding her (and only the professional trainer has been on her to date) has stopped at the moment since she never calms down enough for it to seem like a good idea, even after an attempt to "get some energy out" and her brain refocused on the lunge. Her last ride was very short, only walking around and asking her to stand still in one small part of a big outdoor arena she has been in many times. Being asked to stand still was barely possible for her, when previously she was picture perfect and would not move an inch until asked. Even more odd, she has SOME days where she acts as she did before, focused and calm. But you never know exactly what horse you are getting on any day to day basis. All consistency in behavior has disappeared and I admit that even I have begun to feel nerves around her as I never know what she is going to do. And I do realize that me feeling nervous is NOT helping her, but when your horse flips out on the end of the lead without any obvious trigger, I feel like I need to be hyper vigilant.

I am halting all lunging and riding until the vet comes out for an assessment. Maybe it's related to her heat cycle? Pain elsewhere? Otherwise, I admit that I am a bit depressed at my seeming luck with horses lately. I realize young horses are a challenge, and 5 especially seems to be a trying year, but she is with professionals I trust who are experienced in bringing horses along (hot breeds especially) and I would hope that we would at least be making forward progress, even if in small bits. What has been gradually happening instead is a slow regression in training and behavior for no overt reasons I can ascertain. I know that it is difficult to believe a stranger on the internet, but trust me when I say that absolutely no mishandling or mismanagement is occurring at this barn.

Has anyone ever experienced something like this? Is it not unusual for a calm 4 year-old to lose most of its sense in its 5 year-old year? I'm hoping to god it is related to pain and something we can help her with.
 

laura_nash

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Was she on her own at the previous yard? Some horses can't sleep if they are on their own (even with others next door) and lack of sleep can have odd effects.

Are you sure she's not getting anything else? No chance someone is giving her polos or sugar lumps or something on some days?

Is there any difference in the type of grass between the yards, like loads of clover in the new yards fields?
 

Goldenstar

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Can you lead her off another horse ?
That’s what I would do , a lot of walking off being led another horse .
I would get the vet to take a look
 

Artax

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Always very difficult to really know for sure from descriptions but mares are, entire animals, and that comes with hormones and growth spurts and growing pains, especially at her age. The paragraph that grabs me the most is the one about what she is fed - as PAS has noticed. Why is she on a senior feed? The mineral requirements would be very different for a 4-year-old. Personally, I always start with the basics when working out a problem - diet (hooves are a great gauge), then anything else. As long as there is enough meadow hay (alfalfa can have a bad mix of proteins and minerals for some horses), I would stop the senior feed and strip it back.
 

thistlethorn

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Thanks everyone! Yes, I am actually in America. But I really like this forum. :)

She is on Triple Crown Senior, but only a cup. This feed is beet pulp/forage based and used by a lot of OTTB owners for maintaining weight as it is especially low in sugar and not a grain. I forgot to mention that she is also on a multivitamin (HorseGuard), but I've been contemplating switching her to a complete ration balancer.

We have tried giving her buddies, but so far every attempt has resulted in her getting severely beat up. It's still an ongoing process. She does roll and I see her snoozing laying down frequently, so she is getting REM sleep for sure. At her previous place, she was kept alone in a paddock as well but had a friend she interacted with over the fence. She was at this previous place for about 7 months, by the way, with only sporadic riding and no lunging. Could the lunging by amping her up? I'm not a big proponent of it, although her trainer absolutely is. It has its place for certain workouts but around here no one is going to ride a horse who is not listening on the ground.

I've heard the alfalfa = hot thing frequently as someone who has traditionally only owned Arabians, but am not super convinced this is what the issue is, as she was fed straight alfalfa at her previous home (and way less work to boot) with no problems. I like the buffering properties of alfalfa, especially since she has had ulcers in the past. However, moving her to straight grass is definitely something I am keen to try once physical issues are ruled out.

Being arena sour is something else that I have considered. She may really dislike arena work, which would be absolutely fine, but at this point her trainer absolutely will not hack her out until she proves she can listen (again) within four walls, but maybe I can get the courage to do so. The suggestion of ponying her is a great one. I used to hand walk her all over the place, on the trails and such, but then she started the random bronc'ing in hand (and I had foot surgery, not due to her though) and that has since stopped.

Vet is out in two weeks.
 

Pearlsacarolsinger

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Any forage will provide the buffering effect, it doesn't need to be alfalfa, although other forages might not/won't provide the same amount of calcium, so you might need to supplement.
I know from experience how severely food that the horse had in a previous home can have a bad effect that builds up and just gets worse and worse, until the horse becomes unrideable. I really wouldn't wait until the problems are sorted out to swap to grass, if it is available, you could be waiting for a very long time, if the alfalfa is actually the cause.
 

Caol Ila

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My Highland pony was an anxious mess in arenas but okay hacking in company. So that’s all I did for the first six months I had him. As our partnership strengthened, I introduced the schooling slowly. He still has many questions (why are we doing these circles?? Why can’t I lean on the inside leg??) but he’s as trainable and pleasant as anything else that’s green as a green thing.

I know at many US barns, you are far more beholden to the edicts of your trainer, which isn’t always ideal when a horse requires out of the box thinking.
 

thistlethorn

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Thanks, everyone!

Ok, so game plan is:
Vet work: blood draw, ovary check when we can (will require hauling to the vet hospital if ultra sounding, but maybe we can use the mobile machine), lameness work up including a look for kissing spines.
Diet: take her off all vitamins/senior feed, and potentially put her on grass hay only. We are in the desert out here and no pasture, sadly.
Also of mention, she is not shod and has better feet than one usually sees with this breed.

I *have* started clicker training with her, which she really enjoys. So far she has learned backing up with light pressure on the rope (working toward using a hand signal), target training, putting her head in a halter/bridle and turning her head away/not mugging me for treats. With the clicker, she learns things extremely quickly -- I'm wondering if we should take this concept to standing still at the mounting block and so on. Still odd to me that she used to stand all day for whatever purpose, and now will not. Despite her change in attitude regarding riding and such, she is always great to catch and willingly leaves food to walk up to a human in her field.

When a horse's behavior changes so drastically my first thought is always pain. I haven't seen overt signs of heat from her but perhaps, with it being spring, this has something to do with it.

Caol Ila, you are completely on the nose with that observation re trainer edicts. I like this facility since it has multiple arenas indoor and outdoor, trails, hot water and so on, but there are drawbacks for sure. I really resonate with how you started with your Highland and wonder if I can still salvage this relationship yet.
 

milliepops

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I think you're right to just scale it all back until the vet has assessed her.
Horses don't generally change completely in their attitude for no reason and it does often trace back to a physical problem, they have no other way to tell us.
Since it's still something she is happy to do, in your shoes i'd probably continue to play around with your clicker training if only to give YOU something to enjoy doing while you are waiting, it's hard going when you are struggling with a difficult horse with no idea what is wrong so the small pleasures are precious.
 

Caol Ila

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Reread your post on the computer, rather than phone, which is easier!

Obviously rule out all medical stuff, as you're doing.

If it's not that, maybe it's the place. The thing with my Highland is that I knew he had problems with arenas before I bought him, so nothing took me by surprise. I wasn't exactly sure how I would tackle it, but I figured a vague plan would become apparent once I had the horse at my yard and knew him better.

My old mare, a Shire-TBx who I owned for 21 years and dragged from the US to the UK when I moved here in 2006, was a lady with very strong opinions about yards/barns. If she liked a place, she was a dream to handle. If she didn't, she was a pain in the a*rse. No amount of training could convince her to like a yard, or not be nuts, or not fencewalk. I think this was complicated by the fact that like a lot of US-bred horses, she could not be turned out in a herd because she had not learned horsey social skills as a youngster, so the juju of the yard/people was deeply important. I think horses who can have normal horse friends are more resilient.

I also think the US model of being tied to a trainer six ways from Sunday, unable to make unilateral decisions about your horse, totally sucks. I avoided those barns like the plague when I lived in the States, but I had friends who boarded at those places. Ugh. No way, man.
 

Fransurrey

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I know you said that the saddle is 'custom fitted', but sometimes the horse simply disagrees with that! The not standing at the block, reluctance to go forwards and general anxiety suggest back pain or ill-fitting saddle. Do you have access to the saddle you tried her in or that she came with (if she came with one!)? Is she safe enough to try mounting and riding at walk without a saddle (after a massage and some time off to allow soreness to dissipate)?
 

MyBoyChe

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Are you sure she isnt deficient in magnesium. Assuming you are just coming into spring and she is out on grass, it sounds very much like a mag deficiency to me, my OTTB was almost as you describe, calm as anything when I bought him in October, lost the plot in March. Took a while to get his levels right but it did the trick. Obviously, being a filly, it may also be cycle related as we move into spring/summer.
 

Patterdale

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I’m not surprised she’s stressing tbh. She’s moved from a low key home where she was doing sporadic hacking, to only arena work. I know in America everyone has ‘trainers’ who oversee every bit of the horse’s work but honestly - they’re putting the chicken before the egg (and I’m guessing charging lots for it). There is absolutely NO point doing her head in in the arena with work that she finds stressful and anxiety inducing, before she’s allowed to do relaxing and enjoyable work. I’m not surprised she’s steady and anxious being mounted.

If there’s nothing physical, sack the trainer off and get this horse out hacking, and do nothing BUT hacking on a long rein for a good 6 months. Once she’s relaxed and enjoying it, she’ll work for you. But your trainer’s method of forcing her to work for you before it’s allowed to be relaxed and enjoyable is totally causing this issues in my view.
 

PinkvSantaboots

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Are you sure she isnt deficient in magnesium. Assuming you are just coming into spring and she is out on grass, it sounds very much like a mag deficiency to me, my OTTB was almost as you describe, calm as anything when I bought him in October, lost the plot in March. Took a while to get his levels right but it did the trick. Obviously, being a filly, it may also be cycle related as we move into spring/summer.

Op is in America and there is no grazing just desert but is fed alfalfa so may be an intolerance to that.
 
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