seconds are serious.
Delayed capillary refill time is an indication of reduced blood circulation due to reduced volume (blood loss or dehydration) and/or decreased blood pressure (shock). Jugular Refill The jugular refill time, like the capillary refill time, is an indicator of the status of the circulatory system.
Find the jugular groove on the side of the neck.
Run your thumb along the groove from the top to two-thirds down, then gently press your thumb on the jugular grove with enough pressure to squeeze the blood from the vein.
The refilling is seen as the collapsed vein becomes distended as it refills.
Watch how fast it “fills”.
A refill time of up to one or two seconds is normal.
As with capillary refill time, a delay beyond four or five seconds is cause for concern. Skin Pinch While dehydration leads to changes in a number of the areas examined, the most common means to quickly check hydration is the skin pinch test.
As the animal becomes dehydrated, the skin elasticity decreases due to loss of water from the skin.
When the skin on the point of the shoulder is pinched and pulled gently away, it should then snap back quickly upon release.
Take a fold of skin between the thumb and forefinger, lift it away from the underlying tissues, twist slightly and release.
A skin fold or “tent” that remains for over two seconds indicates dehydration.
A delay of 5 seconds is serious.
It is important to know the normal skin pinch results on your horse as there can be a variation due to age and breed.
For this reason it is important to test the same area of the skin each time to maintain consistency of results. Heart Rate/Pulse To take the heart rate or pulse, place the bell of the stethoscope on the chest wall, just behind the elbow.
The heart rate is heard as “lub-dup”.
Listen for the lub-dup which is one beat.
You should hear a clear two-beat sound for each heartbeat.
Count the beats for 15 seconds and multiply by 4.
Heart rates of 25-40 beats per minute are normal in resting horses.
A persistent elevated resting heart rates (ie, not from temporary excitement as may happen when the vet comes in the stall) would be cause for concern.
A fit horse should recover to a rate of 64 to 68 beats per minute within 10 minutes of the exercise (extreme exercise may take longer for the heart rate to recover).
After exercise has stopped, the heart rate should drop steadily.
Higher rates during recovery from exercise may indicate over-work, fatigue, heat stress, dehydration, pain or illness. Gut Sounds Gut sounds are evaluated with the stethoscope by listening over the upper and lower flank on both left and right sides.
Normal gut sounds are heard as bubbling and gurgling roughly every 5-10 seconds.
The owner should practice listening to normal horses to get an understanding of normal gut sounds.
Abnormal sounds such as pinging, ringing, or echoes of water dripping into a well would be cause for concern.
The sounds can vary not only in quality and character but also in frequency.
The absence of gut sounds is very serious ands usually warrants treatment if no improvement is noted within 30 minutes. Respiration Rate To measure the respiratory rate, watch the flank movement or the flare of the nostrils.
Count the number of breaths the horse has taken in 15 seconds and multiply by 4.
Normally, the respiratory to heart rate is one to four at rest(about 8 – 15 breaths per minute).
Elevated respiratory rates may be observed in excitable horses or during hot/humid weather when the horse is trying to cool itself by panting.
Breathing in and out should be regular and without effort or sound.
Laboured breathing, wheezing, grunting, groaning, coughing or other sounds indicate a problem.
The rate and depth of respiration can vary widely among horses.
Because so many factors affect the respiratory rate at any one time, it is not possible to correlate respiratory rate and depth to physical fitness.
Checking the Body The withers, shoulders, back, croup/rump and girth areas should be palpated for evidence of sores, pain, bumps and tight musculature.
The aim is to detect any pain, sensitivity, or tightness that would impair the horse’s athletic ability or cause pain and suffering during exercise.
The left foreleg is palpated for pain, swelling or heat, especially in the joints, ligaments and tendons, and splint area.
Lift the foot and check the condition, type, and general fit of the shoe.
Note any cracks, founder lines, etc.
That may be evident on the hoof.
Repeat this examination on the left hind limb and then go to the right fore and right hind limb. Heat/Pain/Swelling Evidence of heat or swelling evident in any area on the body is cause for concern.
If the horse is in pain or exhibits a response such as pulling away due to pain, this needs to be investigated by a veterinarian.
Temperature To take the temperature, place the lubricated thermometer into the anus and gently press it against the wall of the rectum.
Normal temperature for a resting horse is 37.5 to 38˚C (99.5 to 100.5˚F).
Rectal temperature of > 40.5˚C (104.9 F) is serious.
If the horse has been exercising it may increase to 39.6˚C (103.3 F) but should not exceed 40.5˚C (104.9 F) and should fall quickly when exercise has stopped.
Remove the thermometer, note the temperature, and check the tail and anal tone.
The anus should constrict immediately in response to slight digital pressure.
The tail should clamp in reflex when first touched.
A flaccid tail and loose anus are found in exhausted horses as well as in some nervous system diseases. Appetite and Water Consumption Normal horses eagerly anticipate the daily feeding.
Horses that exhibit disinterest in their food, become picky eaters or go off feed completely may be developing a problem and this needs to be investigated.
The horse will generally drink roughly equivalent amounts of water daily, with adjustments for temperature, diet, seasonal and exercise changes.
It is important to monitor water consumption daily for optimal health.
Manure/Urination The manure should be formed into moist balls.
If the manure is too dry, or too loose, this may be an indication of a problem or change in diet, water consumption, or other factors.
The amount of manure passed each day is also important to notice.
The amount, colour and frequency of urination should be noted as well as posture while urinating.
Skin/Mane/Tail The skin should be observed for flaking, oozing or signs of irritation.
Hair loss should also be noted.
The Horse in Motion The next part of the examination is to assess the horse while trotting.
Have an assistant trot the horse away from you on a loose lead and then back towards you again so you can assess the parameters described in the sections below.
Gait / Attitude/ Impulsion The examination in motion is done with the assistance of the handler who will trot the horse in a straight line for approximately 40 meters (125’) away from and then toward the owner.
The footing in the trotting area should be level, even and reasonably firm.
Trot the horse on a loose rein at a steady slow trot, taking care to travel to the left of the horse, rather than in front of the horse.
This ensures that the view is not obstructed.
Do not hold the horse with a short lead as this exaggerates or restricts normal head motion.
Note any of the following motions in the gait: hiking, head bobbing or swaying, hopping, as well as head, back and tail carriage.
Listen for any unevenness of hoof beats on the ground.
Learn the normal attitude of your horse.
Step back and look at the whole horse.
The horse should be bright and alert and willing to trot.
A horse that seems sour, disinterested, dull or unwilling to move may not be feeling well.
Impulsion is shown when the horse pushes off energetically from the ground.
The horse’s movement should be free, willing and eager.
Stride length and height should also be noted as this relates to quality of gait.
Cardiac Recovery Index (CRI) The cardiac recovery index is a useful indicator of a horse’s condition, especially if it is used at rest intervals during or after exercise/competition.
The Cardiac Recovery Index was initially developed for monitoring endurance horses but it is an effective tool that can be used on other athletic horses.
It can help determine if the horse has been over-worked or if the horse is overly fatigued.
The owner takes the horse’s heart rate immediately prior to trotting the horse a distance of 38 meters (125’) away and then back to the starting point (76m/250’ total).
The heart rate is re-taken exactly 60 seconds (one minute) from the start of the trot.
The two heart rates are compared and should be within a few beats of one another.
If the post-trot reading is eight or more beats/minute higher than the pre-trot reading, the horse should be carefully evaluated.
Assuming that excitement did not cause the higher reading, one should consider injury, fatigue, dehydration or other causes that may be the underlying cause of the elevated reading. • Equal or lower than 1st reading = Fit to continue • 4 bpm higher than 1st reading = Not fully recovered/repeat test after additional 10 minutes of rest. • 8 bpm higher than 1st reading = Not recovering/cease exercise or workout • A horse that does not pass the CRI test within 30 minutes of rest should cease all exercise and be carefully monitored by a veterinarian.
Conclusion Compare the results of your assessment to the colour-coded chart called The Horse Health Check.
When all the parameters are in the green zone, then you have a healthy horse with no signs of a problem.
If any of the parameters are in the Yellow zone, then you need to slow down and/or stop your horse so that it can be further assessed or to give it appropriate recovery time.
If any of the parameters are in the red zone, you need to contact a veterinarian as soon as possible so the horse can medically assessed, as there could be a serious condition present and medical assistance is required.
Have the complete results of the Horse Health Check written down and available so you can report this to the veterinarian.
You are now on your way to being an educated horse owner who will be able to pick up warning signs before they become more serious. (Information provided in this article is intended to assist the horse owner and is not for medical diagnosis.
Discuss your findings with your veterinarian.
For further information, please contact Equine Guelph.
Phone: 519-8244120, ext. 56678 or e-mail: firstname.lastname@example.org.
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For more learning opportunities, see www.EquineScienceCertificate.com Equine Guelph is the horse owner and caregiver’s Centre at the University of Guelph.
Equine Guelph is dedicated to improving the health and well-being of horses through the provision and promotion of research, performance and education.
Equine Guelph, (519) 824-4120 ext. 54205, www.equineguelph.ca, email@example.com
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