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Recent Posts

8 Golden Rules For Helping Your Thoroughbred Get Right Off The Track

August 2, 2014 by Jane @ THB 38 Comments

OTTB Header

In this guest post, Kerry Warren Couch responds to the article on this site about ex-racehorses by stating, clearly and simply, how she has helped her OTTBs over many years, mainly by initially doing very little at all.

(c) All text copyright of the author at www.thehorsesback.com. No reproduction of partial or entire text without permission. Sharing the link back to this page is fine. Please contact jane@thehorsesback.com for more information. Thank you!

Kerry writes:

Sometimes, you can achieve more by doing very little. There’s a lot advice around about what you can do to help ex-racehorses, or OTTBs (Off the Track Thoroughbreds). Much of it focuses on what can be done through retraining, while some of it focuses on dealing with physical issues.

I have ridden many OTTBs over the decades of my riding career, professionally and for sheer pleasure. I just adore them – they have so much heart, and they give  everything if the rider is willing to be extraordinarily patient, partnering with their horse and never forcing them.

I loved the Buying an Ex-Racehorse: Can You Spot the Major Physical Issues? article – it’s absolutely on target. I have a few suggestions for folks to consider when they bring their OTTBs home. These come from my personal experience – they may not apply to everyone and all cases, so do keep that in mind.

The author's new OTTB
The author’s new OTTB

Seven months ago, I purchased yet another OTTB. He came from a top trainer/track and we knew his entire medical history, including x-rays. This is NOT typical – I was very fortunate to have access and for my vet to be able to talk with the stable and their vets. Very lucky me.

Despite coming from a top trainer, my new OTTB does have some issues – he IS an ex-race horse, so this is to be expected.

He has benefited from my usual approach, which helps the horse long before we start work.

What follows is my approach to helping every OTTB that comes to live at my farm.

 

1. Allow the OTTB plenty of downtime

My OTTBs have always needed time to ‘defuse’ from the training barn life, so I turn them out, slowly to acclimatize.

But then as they come to understand turn out, I find them pasture mates and allow turn-out at will, so they can go in their stalls or walk out to the field as they wish.

2. Give the OTTB a full check-up

I have a complete chiro assessment done before ANY work is begun – and that includes groundwork.

We start working on the serious physical issues right away, but leave simple ones for a little later, so we don’t overwhelm the horse in his transition to a non-track life.

 

3. Use paddock time as self-help time

I am lucky that my farm has hills, so I can help my OTTBs work on symmetrical muscle building long before I begin groundwork.

I purposefully keep their water in their stalls so they must walk the hills every day, from pasture to barn and back.

Their attitudes really change with this time to ‘reprogram’.

OTTB SandI also have a designated ‘rolling area’ near the paddock, filled with super soft sand.  I have been amazed at how smaller, simpler issues can be naturally worked out by allowing horses to relax and roll in lovely sand.

My region has hard clay soil, so I had the sand area made, because I know that rolling on hard clay can actually cause or exacerbate injuries. It’s not that expensive and I’ve found that horses LOVE it.

Do consider putting it in a well-drained area with a little bit of full sun, as warm sand is wonderful!

4. Use grooming as therapy time

I groom them every day ­– slowly and methodically.  I fully believe this has wonderful therapeutic benefits.

It helps with circulation and muscle tone, and helps me partner with my horses without asking anything of them.

5. Work out an individual nutritional plan

Where feed’s concerned, I have full blood panels done and put a nutrition program together based on each horse’s needs. These vary from horse to horse.

I have been fortunate to acquire OTTBs from known training barns, so my horses typically have few deficiencies. This may NOT be the case for so many people who are purchasing OTTBs from a TB rescue operation or general sale.

By the way, I am NOT implying that rescue groups do not take care of the horses. It’s just that sometimes, the rescue folks aren’t told about the horse’s medical history, so they simply don’t know. It is not due to any lack of care or concern on their part.

Hills at the author's place
Hills at the author’s place

We some times see minor anemia, and imbalance in the micro-minerals.  Many OTTBs do have some signs and symptoms of gastric discomfort. This may reflect fore or hind gut ulcers.

I don’t like to have an endoscopy performed, as the pre and post procedures often exacerbate the ulcers, if they do exist.

I actually prefer to treat this area empirically. So, if my vet and I both feel the horse is exhibiting signs consistent with ulcers, we treat them without the instrumental diagnostics.

That said, if there IS a serious issue, one certainly may wish to pursue the endoscopy.

Diet is really individualized to the horse. It is not advisable to suddenly change a horse’s diet. I like to implement a tapering program. I keep the horse on whatever he was being fed at the training barn for two weeks, with a very slow changeover to whatever program we have determined for the new horse.

I typically have acquired very young OTTBs, ie, 3-4 year olds. So I know my horses are still growing and will require nutrition appropriate to a growing horse. We do feed a LOW carbohydrate feed mix and will supplement as warranted.

If one feeds the proper amount as recommended by the feed company and one’s vet, the horse ought to receive the right blend of vitamins and minerals.

I do like to add flax seed meal, not the seeds. If a horse has really thin walls or poor feet, I add a hoof supplement with biotin and trace minerals. If a horse requires, we will add probiotics.

If a horse is a poor drinker, I may add some soaked, drained, no-molasses-added beet pulp.

I think the main thing here is that no two horses are exactly the same.  There is NO cookie cutter approach to caring for horses. There are only general principles:

  • Fresh, clean water, daily (scrub out those water buckets).
  • Plenty of quality hay and forage at will, so the horse does not stand for hours without roughage (the average 1100 lbs horse requires approx 22 lbs of total quality forage a day, which can be a combination of pasture and hay, all hay or all pasture).
  • Get the horse out, moving at will in a pasture so the fore and hind gut can work effectively.
  • Make sure a dentist has assessed their teeth.
  • A fecal test is also a good idea, especially for OTTBs coming from a rescue or general sale.  Good training barns have a worming routine.  This may not be the case with a rescue operation or at a general sale when one doesn’t know much about the OTTB’s origin.
  • I also know the vaccination history of my newly acquired horses, but this may not always be the case for others.  I’d advise anyone to discuss this with the veterinarian.

 

6. Improve poor hoof balance slowly

I get the farrier in from the beginning to slowly – NOT rapidly – change those hoof angles over several months of trims.

Most OTTBs have under run heels, long toes and flat soles.

A slow correction  allows longer term adaptation of the hoof structures and avoids short term soreness. It also avoids dramatic changes that affect posture

OTTBOne MUST take it very slowly.  I believe this holds true for any horse, but particularly for the OTTBs.

Their muscles, tendons and ligaments are put at risk if angle changes are made too rapidly. It leads to transitory lameness, soreness and increased risk of injury, even in the pasture.

I offer the analogy of a person wearing barn boots, day-in, day-out.

Then, suddenly switching to three inch high heels and attempting to carry out the same daily chores. OUCH!

I think it is SO important to have all the professionals involved in the horse’s care/transition on the same page and are informed of each other’s interventions with the horse.

It’s really important to have the big players on the ‘team’ communicating with one another:  the chiropractor, the farrier, the vet/nutritionist, hay and feed dealer.

7. Allow time for slow and steady progress

I have also found that my OTTBs have really needed to learn how to enjoy other horses and life before I start any type of training program.

We humans seem to be in such a hurry.  It’s so helpful to let their bodies and minds defuse.

I have noted that less experienced horse owners would do well to remember that these horses are NOT, at this stage, pets. They have frequently not been cuddled or hand fed carrots, or hugged or loved.

These horses were working horses. They had a job to do.

I have observed some people new to horses being so enthralled with the idea of adopting an OTTB that they immediately want to love them, pet them, stand very close to them and even throw their arms around their necks.

This is a lovely sentiment but oh, so dangerous. Ex-track horses are often more accustomed to varied stall muckers coming in, varied groomers, different hot walkers, exercise riders, jockeys, etc.

So many OTTBs are simply NOT accustomed to being fussed. They may pin their ears and toss their heads to even bite or nip at the new owner, raise a hind foot, or wring the tail as a warning.

People new to horses who start with an OTTB really really need to be aware of this and put together a realistic plan to allow the horse to defuse, detox, rebuild and SLOWLY re-acclimatize to a life where his new people will show affection.

This happens over weeks or months – NOT days. Take it very slowly and give the horse his personal space and time to come to you – don’t force your eager affection on the horse too soon. It may likely backfire.

In time, with patience and understanding, you WILL have a lovely, affectionate horse. But not right away, as a general rule.

Talking to your horses daily, or singing, is good – I sing a lot to my horses so that they learn my voice and intonations.  I do this over a long period, way before I ever attempt to be affectionate with my new OTTB. And even then, I wait for my horse to show me he is ready for me to rub his ears, etc.

Grooming helps this along, too. I often sing while I groom.

8. Enjoy starting work with your OTTB

(c) retiredracehorseblog.com
(c) retiredracehorseblog.com

With all this, they are so much easier to work with – even for their rehab therapies, and physical therapy is always part of the program.

They ARE off the track and there WILL be issues, almost always hips, pelvis, back and others…

I give my OTTBs six full months, and sometimes up to a year, as each horse is different.

I know that may not be reasonable for many people, but even so, at least three months would yield a big benefit.

 


I do hope others have suggestions to add in the Comments section, below. Horses are such magnificent and amazing creatures.  I have spent my lifetime, to date, with them, and I feel I have merely scratched the surface of understanding. I learn something new every single day.  They are wonderful teachers, if we simply have the heart and open mind to ‘listen’ to their voices. 

 

Filed Under: Guest Posts, Thoroughbreds Tagged With: ex-racehorse, ex-racehorses, Flat racers, GA, off the track, off the track thoroughbreds, OTTB, OTTBs, Thoroughbred, thoroughbreds

How The Anatomy Books (Unintentionally) Fail Us Over The Nuchal Ligament

July 13, 2014 by Jane @ THB 5 Comments

nuchal-ligament-header-1

The nuchal ligament is a soft tissue structure that is widely discussed in dressage circles. Unsurprisingly, given its deep location, relatively few of us get to cast eyes on it or feel it directly under our hands.

It’s equally unsurprising, then, that most of us don’t realize that the image we hold in our heads is somewhat different to the reality of the ligament inside our horse.

 © All text copyright of the author, Jane Clothier, www.thehorsesback.com. No reproduction of images, partial or entire text without permission. Sharing the link back to this page is fine. Please contact me for more information. Thank you!

I have recently been fortunate enough to attend another dissection with renowned Australian gross anatomist (and she will point out repeatedly that despite this title, she is not gross – or, at least, not that often), Sharon May-Davis.

In this dissection workshop, Sharon had yet another opportunity to show us that an aspect of textbook anatomy is incorrect.

Yes, apparently there are many points where this is the case.

Where the nuchal ligament is and what it connects

The structure in question is the nuchal ligament, or the nuchal ligament lamellae to be exact.

George Stubbs illustration
George Stubbs, 1777, showed the NLL attaching from C2 to C7.

To quickly explain, the funicular part of the nuchal ligament is the cord-like part that runs from the withers to the occiput (back of skull). The lamellae is the fibrous sheet-like part that extends from the funicular part to the cervical (neck) vertebrae.

According to the majority of anatomy diagrams and textbooks, it extends down to attach to the cervical vertebrae, from C2 to C7.

According to Sharon, it doesn’t. And here’s why.

Findings on the nuchal ligament’s true location

In this study of 35 horses on the dissection table, Sharon found:

  • No cases where the attachments were from C2 to C7.
  • No horses where the attachments were from C2 to C6.
  • In all 35 horses, the attachments were from C2 to C5.
  • And in 9 of the 35, the attachments to C5 consisted of thin and feeble fibers.
  • The horses were of a mixture of identifiable breeds, aged 2 to 28 years old.

So, why do the majority of anatomical drawings of the deeper structures of the horse show something different?

When received knowledge can be a problem

Nuchal ligament, 5yo TB [click to enlarge]
Nuchal ligament, 5yo TB [click to enlarge]
Many of today’s illustrators are referring to illustrations that have themselves been amended from earlier illustrations.

(The header image for this site’s most viewed post, The Disturbing Truth About  Neck Threadworms and Your Itchy Horse, shows an inaccurate rendering of this ligament, as do most of the other illustrations I used. Dang!)

Inaccuracy is a recognized problem when it comes to received knowledge – was this anomaly due to an earlier artist’s error, or was it a characteristic of some 17th century horses that has been progressively bred out over subsequent centuries?

  • And this raises the question of which structure, exactly, is supporting the base of the neck of the horse in motion? Read more about m. Spinalis cervicis in this post, Meet Spinalis, the Forgotten Muscle in Saddle Fitting.
  • And how does this awareness inform current training approaches that require horses to raise themselves into self-carriage?

The findings from this study are in a peer-reviewed paper by Sharon May-Davis and Janeen Kleine currently in press with the Journal of Equine Veterinary Science. The paper includes a detailed review of illustrations in equine anatomy literature, an explanation of the study, and a thought-provoking discussion on the implications for our understanding of equine biomechanics.

Variations and implications of the gross anatomy in the equine nuchal ligament lamellae, Sharon May-Davis, Janeen Kleine, Journal of Equine Veterinary Science 30 June 2014 (Article in Press DOI: 10.1016/j.jevs.2014.06.018)

Have you read about Sharon’s findings on arthritis of the humeroradial (elbow) joint in all ridden or driven horses?

 


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Filed Under: Bodywork, Sharon May-Davis Tagged With: equine anatomy, equine bodywork, GA, horse anatomy, Nuchal ligament, Sharon May-Davis

Debunked: The Lie That’s Told About Adjustable Gullet Saddles

May 19, 2014 by Jane @ THB 63 Comments

adjustable-header-2

One of the best innovations in the world of saddle making has been the interchangeable gullet plate in the synthetic saddle tree. I mean, there’s no getting away from it, it’s brilliant. With the removal of a few screws, every horse owner can adjust their own saddle in minutes. Easy.

saddleWhy so good? Well, they can be fitted to a lot of horses. They can accommodate the changing shape of a growing young horse, as well as seasonal weight gain and loss, or the development of back muscle through training.

So what’s my problem with them?

Unfortunately, such saddles are often accompanied by extra inventions,
this time originating in the marketing department.

Before I go on, I must declare an interest here. I fit saddles. What’s more, I fit saddles with interchangeable gullet plates. I’m not going to say which brand, because that’s not what this post is about. I say this simply to demonstrate that I’m not against adjustable saddles.

My problem is very much with the misleading statements that are made in order to sell them, and in particular the notion that these saddles can be adjusted to fit any horse. Not just a single weight-changing or shape-changing horse, or a few horses in the same yard, but any horse.

They can’t. It’s not true. They simply can’t.

 

Back to the horse’s back

XchangeLet there be no doubt that many horses experience a lot of pain from ill-fitting saddles that are too tight, or too wide, at the front of the tree. Most people are familiar with the sight of horses with white hair behind the shoulder blade, and areas of mild to profound muscle wastage.

The so-called wither profile is incredibly important for this reason. Gaining a correct fit across the gullet (and I mean gullet in the Australian sense – referring to the front of the saddle tree only, rather than the entire channel) is a highly important aspect of saddle fitting.

Yet it isn’t the only aspect. Astonishing as it may seem, horses are 3-dimensional organic structures. Yes! And they have many profiles in that area where the saddle sits.

S/W Ver: 96.66.76RThink about horses’ backs. The gullet plate matches the profile across the withers. But what about the profile along the withers, as well? Withers have different heights and lengths…

There are other profiles, too. There’s along the spine. There’s across the back at the rear of the saddle area, close to the last ribs. All of these profiles have both lengths and angles.

This is one of the reasons why many experts in the world of saddle making and fitting refer to the 9 points of saddle fitting. Several of these points involve the length and angle of the profiles I’ve just mentioned.

genesisGoing back a few years, the common view was that there are 5 points. Times have moved on, anatomy and biomechanics are better understood, and saddle design has evolved dramatically to reflect more recent ideas about how a saddle should interact with the horse’s body and movement, as well as the rider’s. And yet…

Fitting saddles isn’t like buying a pair of socks

Going by a single measurement might be OK for some things, but it isn’t for saddles. There’s more than one measurement involved, and I’m not just talking about the rider’s seat size. Think again about horses’ backs.

  • We have high withers, middling withers and rangy tabletops. High withers can extend way back into the area of the saddle.
  • Looking along the spine, we can see dippy backs, straight backs and bumpy backs.
  • Looking across the spine, we can spot angular A-frame backs and smooth, flat and pudgy backs.
  • It’s easy to spot uphill and downhill backs.
  • Not to mention short backs and long backs (or, to be more accurate with saddle fitting, rib cages).
  • And spines may have wide spinal processes or narrow ones.
  • And how about round rib cages that spring out nearer the spine, or narrow, flat-sided rib cages that drop sharply away, and everything in between?
  • This is before we even look at damaged backs, uneven shoulders, laterally curved spines, and all manner of physical issues affecting the horse, rider and the saddle in between.

Horses have a combination of these features. Many horses have one or two that can make saddle fitting a bit tricky.  Some have combinations that make saddle fitting an utter nightmare.

The saddle’s tree must reflect all those variations. It’s what makes saddle fitting such an interesting challenge, and occasionally a very hard one.

 

More on this Topic

Exclusive posts on Saddle Fit are available on The Horse’s Back Patreon, including The Deep, Deep Pain Caused by a Poor Saddle Fit and The Princess and the Pea… or, the Saddle and the Ding in the Back. Join today and have access to 25 archive posts straight away. Membership from US$ 7.50 per month.

But what about adjusting the flocking?

images6

Well, what about it? Adjusting flocking is the saddle fit version of fine-tuning. It is not changing the overall fit of the saddle.

Adjusting the flocking when the tree is the wrong shape is like (ahem) whistling in the wind.

It’s like adding an extra hole to your belt in an attempt to make a pair of jeans fit, despite the fact that the waist is a size too narrow and the legs 6  inches too short.

Adjusting the flocking only works when the tree is already a fundamentally good fit. The same goes for any flocking substitute, such as risers or wedges inserted into the panels. It is not enough to make a saddle fit the horse, when the tree is the wrong shape.

The message is being massaged

screwdriver

Adjustable gullet plates are now free of the original designer’s patent restrictions and a number of companies are now using them.

As already said, that’s great, providing the saddles are fitted well.

And who determines that? It can be hard to be sure when certain departments continue to make this ongoing, inaccurate claim about their brand of saddles being adjustable to all horses.

It’s marketing at its worst. It’s not just misleading, it’s plain untrue. Worse, it’s willful mis-education that leads horse owners into the mistaken belief that because they have the right gullet plate, then their saddle fits and their horse can’t possibly be in any pain. 

It bugs me that people are being misled. It bugs me far more that horses end up being the silent incumbents of a problem with so much potential to lead to back pain. (And I have worked with the results first-hand.)

As I said earlier, when the saddle fits, FANTASTIC. In fact, FANTASTIC with bells on.

And when it doesn’t, it’s the horse who suffers, no matter how many professionals are saying that black is in fact white, and that with the right ‘system’, an adjustable saddle can be made to fit any horse.

It can’t.

June 2019 update: 5 years after publishing this article, I received the following message from the Ruiz Diaz company in Argentina:

“I am part of the team producing Pessoa, PDS and Anky saddles. I just want to let you know that we have been working on our saddles for better fitting on the rest of the body and not only the withers. Thanks for your article once again, it was really nice to read your words and realize that with a wrong concept we have been saying that the x-change system was fitting every horse but there is much more apart the horse withers.”

 


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Filed Under: Saddle Fit Tagged With: anky saddles, bates saddles, buying saddles, GA, genesis saddles, homepage, pessoa saddles, saddle fit, saddle fitting, thorowgood saddles, wintec saddles

Why Thinking About Neck Threadworms Still Leaves Us Scratching Our Heads

April 20, 2014 by Jane @ THB 34 Comments

header neck threadworms

Less than 12 months ago, I wrote about neck threadworms and how they might be behind many horses’ frantic itching. The uptake on that article continues to astonish me. It has now had well over 60,000 visitors from all over the world and is still climbing steadily.

All text (c) Jane Clothier, https://thehorsesback.com No reproduction without permission. Thanks!

Itchy horses, it seems, are a perennial worry for thousands if not hundreds of thousands of horse owners (that’s counting the many who haven’t read the article).

At time of writing, it’s Spring in the northern hemisphere, and the reader numbers are building up again. So are the microfilariae levels.

The itchy horses are starting to scratch.

And the more I think about the neck threadworm issue, and read comments under the articles, the more I’m scratching my head.

[Article continues after advert.]

Who am I to write about Neck Threadworms?

Unsurprisingly, there have been a few knock-backs as well. I’m not a vet and, although I read as many papers as possible and discuss my thoughts with research vets before I post my blog articles, my assertions, which are based on observations and backed up with research, have still tickled the inside of a few noses.

To be honest, neck threadworms aren’t exactly an easy subject. Filarial nematode parasites are a complex life form so fundamentally different to those within our normal understanding. They rely on more than one host and undergo several stages in their development – they make the caterpillar to butterfly transformation look unambitious. (What, just two life stages? Onchocerca Cervicalis (neck threadworms) has twice that...)

And we are looking at not two, but three species here. The horse, the neck threadworms, and the biting midge (culicoid fly) that does the middle man part. The microfilariae leave the horse, courtesy of the midge, get flown around, travel through the midge’s body parts and enter different larval stages, and are then returned to the horse when the midge returns to ingest blood.

A lot of people are confused, and I don’t mean just horse owners. There are vets working for manufacturers of worming products who swear that their product can bump off the adult neck threadworms.

This would be welcome news to the World Health Organization, I’m sure, as decades of research have yet to find a chemical that successfully infiltrates the central nervous system of the adult Onchocerca Volvulus (the human version of the parasite, which currently affects an estimated 18 million people throughout Africa, Latin America and the Yemen) and eliminates it.

Moving on…

1. About standard texts on neck threadworms

“Oh, but those are the wrong signs for neck threadworms.” After “we don’t have that problem around here”, a lot of people are hearing this line when asking for professional help with their itchy horse. The problem, apparently, is that their horses don’t have the ‘typical’ itching along the ventral line, ie, the underside of the neck and belly.

I do wish that instead of saying, “it can’t be that, as it’s not described that way in the textbooks”, more people would wonder instead if there were something that could be added to those textbooks.

Textbooks tend to be based on research that other people have done. In the case of neck threadworms, there is relatively little out there. This means that a lot of information that finds its way into books and training is already reasonably dated, and not exactly far ranging.

Here’s how to put together a program of treatment for your horse with neck threadworms (and maybe the Itch) – How to Fight the Big Fight Against Neck Threadworms

2. Neck threadworms may be the same worldwide, but biting midges aren’t

This is something we’re especially aware of here in Australia, where geographical isolation has led to the evolution of some remarkable indigenous species, found nowhere else in the world. Our ticks are different. Our flies are different. We have marsupials.

Most of the research on neck threadworms hails from the US. When findings of research involving vectors – the biting midge ‘middle man’ – are applied worldwide, it’s important to remember that some conditions can be ‘similar but different’.

Indeed, when we look at research on Onchocerca Volvulus, neck threadworms’ well-studied cousin that affects humans, we can come across statements like this one: “Many simuliid species have been incriminated to a greater or lesser degree in the transmission of O. volvulus, their relative vectorial roles contributing to shape diverse transmission patterns across endemic areas.” (Basáñez M-G et al, 2006.)

Say what? Different flies are active in different areas and create different patterns of transmission? I think the point is made well enough.

[Article continues after advert.]

3. The biting midges must be studied too

If we consider the possibility of different culicoides acting as vectors, then other differences come into consideration as well.

European studies into Sweet Itch (Summer Itch, Queensland Itch) have shown that different types of biting midge have a preference for different parts of the horse’s body.

What? But that’s breaking the rules, surely? Yup. That’s what nature does – makes its own rules.

4. More rule breaking

It doesn’t stop there: studies of cattle in Darwin (a hotbed for livestock research due to its tropical climate) have revealed the presence of more than one type of Onchocerca, with at least two species of the parasite being found in the ‘wrong’ animal.

This suggests that one or more species of biting midge are ‘cross-contaminating’ the parasite by moving from one species of mammal to another. Possibly. But the point here is that variation exists – we can’t assume that because a few studies have identified certain conditions, these are replicated globally.

5. Neck threadworm life cycle: what happens and when

Another point that isn’t clearly answered by existing research is how much the microfilariae travel. If the adult worms are living in the nuchal ligament, that is where they give birth to zillions of microfilariae. Some flies must bite in this area in order to ingest the microfilariae and take off with them. It then follows that there are millions that don’t get ingested, and die off. It’s the die off that causes the itching, both during normal times and after treatment with ivermectin.

So here we have itching that’s not on the ventral midline.

It’s more remarkable that horses do itch on the ventral midline. If adults live in the nuchal ligament, mostly, and microfilariae are dying on the ventral line, either the microfilariae are traveling long distance, subcutaneously, or there are adults living in the ‘white line’ that runs from the the sternum to the umbilical area.

At the very least, we can say that this is problem isn’t confined to the underside of the horse.

If your horse has the Itch, Queensland Itch, Sweet Itch, Summer Itch, Summer Sores… sometimes it’s really neck threadworms. Read the original article, The Disturbing Truth About Neck Threadworms and Your Itchy Horse

6. And look at the behavior of itchy horses

Whatever the country, whatever the culicoid species, the horse that’s going insane with itchiness can only ever scratch the parts that it can reach. Most horses can easily scratch their toplines on branches and fences, whereas far fewer are seen scratching their bellies on the ground. Horses will always break the skin in any area that they scratch in earnest, and consequently the blood attracts the biting midges to that area.

As the immune system goes into stratospheric hypersensitivity, intense itching can become an all-over sensation. Remember having chicken pox, or measles? Or ask any person who has such an uncontrollable immune response.

Let’s not overlook the possibility that horses displaying lesions on their undersides are in the more advanced stages of parasitic infestation, or are rugged (fewer areas are available for the midges to bite), or even – taking the earlier points on board – that they live in areas where local midges prefer that part of the horse’s body.

7. And let’s not forget owner behavior

Who is that calls the vet, and why? Not the horse… An owner who notices their horse scratching its mane and tail head is way less likely to contact a vet than the owner who sees bald, scratched patches on their horse’s underside.

It’s the difference between “dang, my horse has the itch” and “what the heck’s my horse doing, rubbing under there?”

It entirely makes sense that the more advanced cases, with all over itching and rubbed patches, are more likely to be seen by vets, and to make it into veterinary research. (Note: in research, not all horses whose nuchal ligaments were dissected at necropsy displayed ventral lesions, far from it, although many tested positive for Onchocerca Cervicalis.)

[Article continues after advert.]

Where to next, with neck threadworms?

Well, what do you think? I know what I think. I know what I’ve experienced with my horse.

I trust my observations. I trust the research that I’ve read and that fits closely with my observations. And no, I’m not cherry-picking research to prop up my own emotionally driven ideas.

At present, other explanations aren’t available, but lots of questions remain. Looking at the ones here, it’s easy to understand why research is such a long and painstaking process – it’s not possible to go from A to Z or even A to D without covering the intervening steps.

For the horse owner, just one thing is clear, and that is that we have a horse being driven mad by itching. So, please do stick with ivermectin for identifying the initial reactions. Stick with ivermectin or moxidectin/praziquantel wormers for reducing the problem (moxidectin will not cause the itching response post-worming).

And remember, that not every itchy horse has neck threadworms.

 

 

© All text copyright of the author, Jane Clothier, www.thehorsesback.com. No reproduction of partial or entire text without permission. Sharing the link back to this page is fine. Please contact me for more information. Thank you!

 


Questions, thoughts or comments? Join us at The Horse’s Back Facebook group. 


 

Reference

Basáñez M-G, Pion SDS, Churcher TS, Breitling LP, Little MP, et al. (2006) River Blindness: A Success Story under Threat? PLoS Med 3(9): e371. doi:10.1371/journal.pmed.0030371

 

 


 

 

Filed Under: Neck Threadworms, Parasites Tagged With: GA, horse itching, neck threadworms, onchocerca cervicalis, queensland itch, summer itch, summer sores, sweet itch

Buying an Ex-Racehorse: Can You Spot the Major Physical Issues?

February 9, 2014 by Jane @ THB 131 Comments

OTTBs-header-1

 

The ex-racehorse: a huge heart, a strong work ethic, great athleticism, wonderful sensitivity… and, potentially, a host of physical issues. Are you able to identify the problems so often present in these superb equine athletes?

A sports career can be tough on the body, as any committed athlete will admit. No matter how successful the athlete, the wear and tear and dings and dents will just keep on coming. It’s an inevitable consequence of making the body work at its outer limits of strength, speed and endurance: there are going to be times when the body just can’t make it or just can’t take the pressure. And that doesn’t count the spills and collisions that happen along the way. The same is as true for any top athlete as for any trainee who doesn’t make it past the foothills of success. And the same is definitely as true for racehorses as for any human Olympiad.

All text (c) Jane Clothier, https://thehorsesback.com No reproduction without permission. Thanks!

 The damage carried by ex-racehorses

racehorseJust how much damage an ex-racehorse displays in its physique depends on several things:

  1. the methods of training used,
  2. the speed with which the training was introduced and stepped up,
  3. the athletic qualities of that horse’s body – conformation, maturity and sheer unquantifiable athleticism,
  4. the treatment given and recovery time allowed for injuries at the time they occurred – assuming all were recognized (not all are visible or obvious),
  5. the demands placed on the horse in terms of number of races and recovery time between races,
  6. the length of time spent in racing, enabling the above to occur,
  7. the horse’s mental and emotional ability to cope with physical problems (it varies enormously).

exracer1As in any sport, there are things that are done well, and things that are not done so well. Informed training and misinformed. Well judged and misjudged. Just as in the rest of the equine world.

Some thoroughbreds come out of the racing industry in fine fettle and have splendid second athletic careers in high end competition. Many have lower level issues that come right with some rehabilitation, leaving them suited to successful but less demanding careers. Others may be more suited to recreational homes, where life is one long pleasurable trail ride.

Unfortunately, many thoroughbreds with moderate problems land up in homes with people who are quite unaware of their horses’ issues.

What would you look for when buying an ex-racehorse?

pleasurehorseWhen working with clients, I see a range of issues that come up again and again in ex-racehorses. I also see plenty of unsuspecting owners who didn’t know what they were buying at the time.

There’s a huge amount of love around, but the horse is often showing discomfort or pain, and the owner is only just realizing that (a) their horse may not be able to participate in the activities they’d hoped to experience together, and (b) getting the horse to a point when they can deal with these issues may cost considerably more than the horse did upon purchase.

It’s a sad situation. I believe that when looking at ex-racehorses, even those that have already had a couple of non-racing owners, you could do a lot worse than check for the physical issues listed here. Even better, get a vet to check the horse… but even then, you could run through this checklist before getting the vet in.

Don’t forget to read this guest post: 8 Golden Rules for Helping Your Thoroughbred Get Right Off The Track

There’s functional and not-so-functional when it comes to ex-racehorses

Not all the physical issues are deal-breakers, of course. A horse can have one or two and still be able to function perfectly well (although if it’s straight out of racing, some rehabilitative work is going to be necessary). A big part of your buying decision will come down to:

  • the number of issues you can identify,
  • the severity of those issues,
  • what has already been done to assist the horse with those issues,
  • how much they will affect the kind of riding you wish to do, and
  • whether YOU are capable of providing the rehabilitation and retraining needed to support the horse through those problems – or if not, whether you can afford to pay somebody else who can.

The list that follows is by no means exhaustive – there are always more problems, especially as a combination of different problems can throw up further secondary issues. And I don’t go into hoofcare, which is worthy of another introductory article in its own right. However, it’s a major issue, so I’d recommend learning more about that too.

What I’ve decided to focus on here are problems that you can identify quickly and relatively easily. Most are visually identifiable. You can then get a more knowledgeable person to help you assess the horse or get a vetting completed before making a decision. Better still, do both.

 

1. Sacroiliac Damage – Not Whether it’s There, but is it Slight, Bad or Appalling?

This problem really is the number one, as every ex-racehorse has damage to the ligaments in this area. Depending on severity, there can be lesions that have healed, or lesions that have resulted in lasting weakness.

Frequently, when damage to the ligaments is  severe, there’ll be further changes to the pelvis that are also visible. These may may or may not have the same root cause (see 2, below). One general rule, though, is that the horse won’t be symmetrical.

SAMSUNGMajor damage can rule out a future athletic career, while moderate damage may require rehabilitative work to strengthen the back and prepare the horse for future work. Minor damage isn’t necessarily an issue once the ligaments have healed.

Check for: asymmetry of the tuber sacrales (the two bony ‘pins’ of the croup), with one side being more than 5mm higher than the other. The horse may walk with one side of the pelvis lifting higher than the other – a hip ‘hike’. The muscle development over the glutes on top of the hindquarters may be uneven. These horse are nearly always cagey about picking up a back foot – they’ll swiftly lift it really high and then lower it into position. The horse can also find it hard to stand square, instead standing with hind feet close together – one toe may be angled outwards. Always look for problems with the lumbar spine as well (see 3, below).

 

Sacroiliac dysfunction2. The Pelvis Can Be Equine Ground Zero

As well as sacroiliac problems, ex-racehorses can have other structural damage to the pelvis. Some of it you can see, some of it you can’t. The most important thing to do is check the pelvis for overall symmetry. What you’re checking for isn’t just pelvic rotation, ie. one side being higher or further forward than the other, but also distortion.

Distorted PelvisIn horses that have had heavy accidents at a young age, the pubic symphysis (the lower cartilaginous join between the pelvic halves, directly between the legs) hasn’t formed properly. The pelvis may be forced wider due to impact or stress, and this part never joins.

What problems does this cause? With a severely distorted pelvis, a horse can’t work equally well on both reins and may not be able to canter at all on one rein. These horses also have a higher risk of having hidden stress fractures – hairline fractures that can worsen after a further fall or trauma later in life.

Indeed, make sure that all the pelvic ‘bony landmarks’ – the point of hip, point of buttock, croup – are actually present. Sometimes fractures lead to ‘knocked down hips’ or one tuber sacral may have dropped due to a fracture of the pelvic wing.

Check for: Pelvic symmetry, by checking the positions of the bony landmarks. If you know the horse and it’s safe, stand on a box a few feet behind to take a look down the back of the squared up horse (if it can square up, that is). Otherwise, hold a mobile phone directly overhead to get a straight-down-the-back photo, ensuring it’s dead center. ALWAYS STAY IN A SAFE POSITION – CLIMB ON A FENCE TO LOOK, WHATEVER. JUST STAY SAFE.

 

© All text copyright of the author, Jane Clothier, www.thehorsesback.com. No reproduction of partial or entire text without permission. Sharing the link back to this page is fine. Please contact contact me for more information. Thank you!

 


3. Heading North, South, East or West… the Lumbar Spine

If you’ve found any sacroiliac or pelvic issues, you’ll probably find problems in the lumbar spine too. Lateral imbalance in the pelvis will, more often than not, rotate the lumbar spine to one side or the other. Lumbar issues can also be found all on their own.

Lumbar 1A long-term rotated lumbar spine will usually have some fusion between the vertebrae, and/or overriding dorsal processes (the part of the vertebrae you can feel). Fused areas are painful for the horse while they’re happening, and OK once the fusion is complete. But if fusion cracks, it can once more be extremely painful. Many horses compete just fine with some fusion, but if it’s severe, there’ll be problems with flexion, both vertical and lateral.

Check for: Use your hand to check the lumbar spine for the ‘lumps and bumps’ that can indicate overriding processes. Looking from the side, is the lumbar spine raised – ie, a roached back? This will usually tilt the pelvis back if it’s a longer term problem. If the pelvis is tilted forward, you’ll find there’s often a longer dip in front of the croup – the sacrolumbar gap is larger than normal.

 

knees4. Knee Bones: Take a Bag of Chicklets and Shake Them Up

Or so said Tom Ivers, one of the original equine sports therapy experts and a racing trainer to boot. Equine knees are delicate and complex, with many small bones (carpals), and undergo a lot of stress in a racing career.

Problems such as slab fractures and bone chips in the carpal bones happen due to over-extension (when the joint is bent back slightly) at high speed, or from constant loading on the same bend. Then there are more complex fractures, when the carpal bones break into more than two segments.

Check for: Puffiness around the joint, especially in front, due to previous swelling in the joint capsule. Old bone chips and slab fractures may have been dealt with at the time, but there can be lasting damage within the joint that leads to osteoarthritis (carpitis) later on.

 

buckedshins-15. The Stresses Left by Sore Shins

An ex-racehorse may have had an episode of sore shins in its early career. This is stress to the periosteum (the soft surface layer over the bone) caused by concussion – the body’s response is to lay down extra calcium to strengthen the bone. The bone recovers, but anywhere there’s been remodeling, there’s weakness in the bone.

If it’s severe, there may be an undiagnosed stress fracture that can go catastrophic under high pressure at a future date.

Check for: a curvature on the front of the cannon, which indicates that the problem was bad for heavy remodeling to occur.

 

bowed tendon6. Tendons, Tendons and More Damaged Tendons

Injuries to flexor tendons are extremely common amongst racehorses, with the deep digital flexor tendon and superficial digital flexor tendon being the most affected. These can be relatively minor lesions, which heal up quite nicely, to more serious ruptures that end a racing career.

There is always a risk of re-injury due to the weakness, and in serious cases, a second rupture could be catastrophic. It often depends on the quality of treatment and length of rest given at the time, as well as re-conditioning before returning to work.

Check for: a thicker area of the tendons indicates an old injury that has healed, while a curvature along the length of the tendon is a classic ‘bowed tendon’, sign of a far more serious injury.

S/W Ver: 96.66.76R7. Small but Vital: Fractures in the Fetlocks

Fetlocks are vulnerable due to hyper-extension, when the back of the fetlock comes too close to the ground when all the weight is borne on one foreleg at high speeds. Extremely high forces occur at the back of the fetlock and pastern as the horse lands the forefoot. Poor hoofcare, in the form of ‘low heel, long toe’ imbalance, also plays a significant part in this.

With fractures, the big, big issue is the type and location. A damaged sesamoid (the two small bones at the back of the fetlocks are the sesamoids)can play havoc with the vital suspensory ligament. So if you see signs of a problem, you’ll always need to know more, and that will usually mean involving a vet.

Check for: Sesamoid fractures will show up as ‘over-rounded’ or ‘apple shaped’ fetlocks, where swelling from an old injury has disrupted the joint capsule and/or extra calcium has formed around a restricted joint. Are the fetlocks of the forelegs the same size and shape? If one joint is larger and rounder, or if the ligament at the back of the foot feels thicker, with puffiness above the back of the fetlock, be suspicious.

Original article by Jane Clothier, www.thehorsesback.com posted 9 Feb 2014. All text and photographs (c) Jane Clothier. No reproduction without permission, sorry.

 

S/W Ver: 96.66.76R8. The Stifles Cop It, Nearly Every Time

There are numerous causes for stifle issues in ex-racehorses, but you can take the view that if there’s a problem anywhere in the hindquarters, the stifle usually suffers. This includes any pelvic imbalance that leads to unequal loading of the hind limbs, never mind the forces of running on a unilateral bend…

Then there are the rotational twists that can happen in collisions and on bad ground. There are so many ligaments around this complex double joint that it really isn’t hard for it to get compromised.

Check for: A regular click as a hind leg starts to swing forward. This is the patellar momentarily catching, which can happens due to the lateral imbalance (causing misalignment in the femeropatellar joint). Other signs are visual: distension (swelling) of the joint may be visible from the side-on view, or from the front looking back towards the tail, depending on which part of the joint has been affected (femeropatellar or femerotibial).

 

Hocks9. Bringing up the Rear: Hocks Are Vulnerable Too

The hock comes under major stress due to being so involved in providing propulsive power in the gallop. As a major hinge joint, it is central to jumping out of starting gates/barriers, when it’s subject to the load of almost the entire horse. In the gallop, it must alternate between being compressed to absorb concussion, being rigid to build energy, and then extending fully to dispel energy and move the horse forwards.

Frequently, it’s doing this while subject to uneven loading on a bend. Then there are the unplanned twists and traumas. Well-conformed hocks may deal with this pretty well, but over-straight hocks and ‘cow hocks’ mean that the joint is less able to withstand high levels of work. It’s common for DJD to develop in the lower bones of the joint, especially on the side that’s on the inside of the bend the horse raced in.

Check for: look for puffiness on the face of the joint. Also look for bog spavins – these are specific fluid bumps on the front of the joint, which indicate underlying issues. Bone spavins are their bony equivalents, being hard bumps lower on the face of the joint, which indicate the presence of established DJD (arthritis). Also, listen for a crunching noise or a crack when the hind foot is lifted.

S/W Ver: 96.66.76R10. A Crash and Bang on the Shoulder

Racehorses can experience awkward impacts at the base of the neck, above the point of the  shoulder. It can happen when bunched-up horses collide or run against railings, during a fall, or through everyday routine, such as a severe knock against a stable door. One outcome can be damage to the supraspinous nerve, which runs over the face of the shoulder blade (scapula).

When damaged, this can lead to wasting or even paralysis of the muscles over the shoulder blade itself, which is a problem, because these muscles stabilise the shoulder joint. This condition is known as ‘sweeney’. Mild cases usually recover, but more severe cases can be left with permanently wasted muscles. With reduced function in one shoulder and a shortened stride, the horse won’t be suited to demanding sports.

Check for: a lack of muscle over the shoulder blade itself. This is more than just tight muscles – the spine of the shoulder blade will be visually obvious and easy to identify through touch.

And There’s More… There’s Always More

S/W Ver: 96.66.76RIt’s hard to know where to stop with an article like this, but I hope this is a good start when it comes to assessing a horse. You may be thinking that many of the problems are those you should check for in any new horse purchase – and you’d be right. However, anyone who works regularly with ex-racehorses will recognize that there are certain sets of issues that come with these former athletes.

What I haven’t covered: neck issues are common (calcification at the top of the nuchal ligament, misshapen atlas and atlanto-occiptal junction, etc), hidden stress fractures (radius and tibia are most common, but also the scapula… and others), the fractured ribs that come with sideways impacts in a race, misalignment through C6-T4, and quite a few more… but all are harder for the non-professional to assess.

Other information is more of interest to people working in the field. For this reason, I’m adding some links below. Please feel free to mention your own in the Comments…

To finish off, here are two horses that raced in Australia, where it’s common to train horses at the very racetrack where they run most of their races. In the state of NSW, the horses run clockwise (the bay), while in the state of Victoria, they run anti-clockwise (the chestnut). A view straight down the ‘unstraight’ spine can tell you so much!

 

spines

 

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Now check out this article OTTB rehabilitation: 8 Golden Rules For Helping Your Thoroughbred Get Right Off The Track


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Filed Under: Bodywork, Thoroughbreds Tagged With: ex-racehorses, GA, off the track, off the track thoroughbred, off the track thoroughbreds, OTTB, OTTBs, racehorses, retired racehorses, thoroughbred horses, thoroughbreds

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