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Basic knowledge: Treating and preventing thrush in horses

Basic knowledge: Treating and preventing thrush in horses

Thrush is one of the most common hoof diseases and is always worth treating. If left untreated, thrush can lead to lameness, open wounds, hoof deformation and, in the worst case, to thrush cancer. The earlier hoof disease is recognized and treated, the faster and better it can be treated. the thrush can be treated without harming the horse.

What is thrush in horses?

Thrush is a bacterial disease of the hoof in which the frog horn slowly, also in symbiosis with fungi. It mainly affects the frog furrows and is usually caused by a combination of poor stall hygiene, moisture and prolonged shoeing periods. and excessive shoeing periods.

Recognizing thrush - interpreting typical symptoms at an early stage

Signs of thrush are a soft, even greasy horn that begins to dissolve. Muddy and rotten and rotten areas, deepening frog furrows are the result, often accompanied by an odor reminiscent of rotten eggs. As the frog furrows deepen, there is often a separation of the bale in the middle frog furrow.

In addition, cavities, cracks or so-called pockets form on the beam, in which where the harmful anaerobic microorganisms live. The horn turns dark due to decomposition. Also in the lateral frog furrows, the frog loses substance and becomes narrower and narrower. narrower.

A human hand uses a spatula to examine a horse's hoof with thrush
Fig. 1: Contextual separation of the bale. This area has no separation in a healthy hoof.

Where does thrush occur? - Understanding thrush on the pads

Thrush occurs in both the lateral and central frog furrows. Especially in already The germs have access to light and air in an already deepened central frog furrow, which further stimulates thrush. From the central frog furrow, thrush can migrate upwards to the ball of the foot and attach to the skin in the fetlock bend. in the crook of the fetlock even cause thrush.

It is characterized by the separation of the ball into two halves. Once the thrush has worked its way up into the ball of the hoof, a healed thrush usually leaves a scar in this area, even though the rot has been removed.

Fig. 2: Scar of thrush extending into the bale. In the case of acute thrush, there is a gap at this point in which putrefactive pathogens can be found.

Recognizing the first signs - What to do if thrush starts?

Initial cleaning and drying measures

It is always advisable to scrape and dry-clean the hooves thoroughly every day.

In addition, good stable and exercise area hygiene should always be emphasized. If thrush begins to develop, a suitable product should also be applied immediately, e.g. Keralit Thrush Liquide or Keralit Undercover should be applied immediately. Early action is always rewarded with thrush and the problem can usually be the problem can usually be eliminated in the initial phase.

Decision support: Treat thrush or observe?

Thrush quickly develops to a stage where it can maintain itself. Waiting would therefore only make the situation worse, whereas a few applications of a suitable care product would be enough to get acute thrush safely under control if action is taken in good time. For a more in-depth look at the causes, risk factors and preventative measures, read our further blog post on thrush.

In the case of advanced thrush with purulent inflammation, lameness, deep holes/cavities in the frog area or proliferating frog horn, the vet/farrier should be contacted immediately.

Treating thrush - explained step by step

Daily care and correct brushing technique

With thrush-treatment the correct cleaning of the frog beforehand is extremely important for the success of the treatment. If thrush agents only on a layer of dirt consisting of decomposed horn and bedding the treatment is usually unsuccessful or takes a very long or it takes a very long time, as the product cannot reach the deepest part of the thrush.

First of all, the hooves should be thoroughly scraped out. Make sure that the hoof scraper does not have any points or sharp edges, as these could damage the already damaged, softened frog or the frog skin. or the frog skin easily injure can. After scraping, it is advisable to clean the frog dry using a wooden spatula and a small cloth or compress. a small cloth or compress.

Alternatively, you can also use a popsicle stick and a dry cloth (as tear-resistant as possible). For cleaning, the compress is then placed around the wooden mouth spatula and wiped through the grooves (see illustrations below). The compress is repeatedly placed around the spatula with a different side so that dirt that has already been removed is not brought back into the frog furrows. The blasting furrows are wiped out until no more dirt remains on the compress. This removes some of the germs.

Using thrush remedies correctly - what is important

In order to successfully apply care products for treating thrush, prior dry cleaning is very important. In addition, the case at hand determines which product is ideally suited. The consistency of the product plays an important role here. For horses that are kept outdoors a lot are kept outdoors and therefore often often have wet hooves, a sticky paste is much more suitable than a liquid product. A liquid product cannot be optimally absorbed by hoof horn that is already wet.

For hooves, which are largelydry, a liquid product is suitable for hooves that are however very well, as this moisturizes the deep the bottom of the frog furrows after cleaning after cleaning. Keralit offers the liquid Keralit Blasting Liquide and the paste Keralit Undercover for every type of thrush and type of posture the right solution. The products can also be used in combination to benefit from the advantages of both. to utilize both. Cutting out the beam more frequently also significantly improves the situation, as light and air can then reach the affected areas and the care products can be applied more effectively.

Do home remedies help against thrush? - What really helps?

If you discover thrush, home remedies can also help at first until you have found a suitable product. For example have vinegar and tea tree oil have a certain antibacterial effect, but do not remain on the hoof for too long. Another complicating factor with tea tree oil is that it is an essential oil that evaporates quickly and then no longer has any effect. Some horses even have an allergic reaction to it.

A zinc ointment can also help in hygienic and dry conditions by having an additional drying effect in the frog furrows. However, these household remedies are usually not sufficient for treatment on their own, as their spectrum of action is too small and they usually only help for a very short time.

How long does it take the thrush treatment?

Duration and healing process - depending on severity

The duration of treatment depends heavily on how deep the damage has already progressed, particularly in the central frog furrow. In the case of mild to moderate thrush, consistent treatment will result in a significant improvement after just a few days. The damaged frog areas then grow back quickly and healthily.

In the case of severe thrush, the duration of treatment depends on how severe and how deep the damage to the frog horn and the horn-producing frog skin has already progressed. In addition, the loss of substance and the resulting change in hoof shape makes rapid healing more difficult in the case of prolonged horn damage. 

The altered hoof shape, usually a narrowing hoof, can affect the hoof mechanism. hoof mechanism which in turn impedes blood circulation in the hoof and the self-cleaning effect.

The prevention of active rotting processes works with the appropriate care products within a few days, but the renewal of the frog horn until the frog has completely grown out takes approx. 6 to 9 weeks. The treatment should be continued stubbornly for this length of time. Complete regeneration of the hoof and its shape, on the other hand, takes considerably longer. It requires intensive care with special corrections by an experienced farrier/hoof trimmer. This aspect emphasizes the urgency of immediate treatment when thrush begins.

How can I tell that the treatment is working?

The success of the treatment can be easily determined on the basis of various factors. Externally, when the condition improves, the frog becomes firmer and drier again. The frog horn no longer appears muddy or porous. In addition, the foul odor and the horse's sensitivity to scraping and cleaning also diminishes.

What should I feed for thrush?

In principle, thrush cannot be treated with feed, as the horn that has grown is not connected to the bloodstream and therefore cannot be reached by nutrients and medication. However, it is always helpful and supportive in the treatment of hoof diseases to provide the horse with an optimal supply of nutrients and minerals, such as biotin and zinc, so that high-quality and healthy horn is produced as quickly as possible.

Checklist for the prevention of thrush

  • Hooves daily, scrape out thoroughly

  • keep the box/run as clean and dry as possible

  • Regular visits to the farrier or hoof trimmer

  • the Keralit Beam Liquide or the Keralit Undercover apply once a week as a preventive measure

FAQ - Frequently asked questions about thrush in horses

What is the best remedy for thrush in horses?

In order to treat thrush effectively, good stall and run-out hygiene should be ensured be and the hooves should kept as dry as possible. In addition, daily, thorough scraping, daily dry cleaning of the frog furrows and the correct application of a suitable care product are important. care product is important.

Does vinegar help Vinegar for thrush?

If at all, vinegar essence is suitable, as it is more acidic than normal vinegar and, unlike wine vinegar, which is intended for consumption, contains no sugar. The sugar is disadvantageous because this new food for the thrush germs. However, the spectrum of action of vinegar is very limited. Therefore, treatment with vinegar essence is rarely sufficient. Vinegar essence is also highly irritating, which can lead to redness and skin reactions on contact with the horse's skin.

Can thrush be treated with toothpaste?

Treatment with toothpaste makes little sense, as it can only slightly dry out the thrush under dry and hygienic conditions. Like vinegar, toothpaste is water-soluble and is gone the first time the hoof comes into contact with water.

Can you treat thrush with zinc ointment?

Zinc ointment can be used as part of the treatment as it promotes wound healing and covers wound areas. However alone, however, is not sufficient against the germs causing the wound.

What happens with untreated thrush?

If thrush is not treated, this can lead to larger wound areas and hoof abscesses. hoof abscesses in the frog area. Lameness is the result. Untreated thrush leads quite quickly to a loss of substance of the frog horn and can thus lead to lead to a permanently altered hoof shape. The regeneration of the hoof and its shape then takes then very long and requires intensive care with special corrections by an experienced farrier/farrier. Untreated thrush can even lead to thrush cancer. Thrush is a serious hoof disease that is very complex to treat.

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