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Published and unpublished data suggests up to 60% of horses after hard
work may show varying degrees of haemorrhage when the scope is passed
into the bronchi.
Scientists now believe that the effect of
massive lung pressures and/or lung infection many cause bleeding. From:
Aust Equine Vet Vol 12(3) Aug 1994 and AJC Racing Calendar Jan 1995.
Work done by researchers at the
University of California showed that the most important cause of
"bleeders" is the high blood pressure in the lung (pulmonary)
circulation of horses during very hard exercise.
Stress put on the horse's lungs is greater than those of any other
athletic animal studied up to date. In "roarers" (laryngeal
hemiplegia) the lung pressures are even greater. Try to partly block
your nose and run 1-2km at the same time. You will feel the "extra
pressures on your lungs" that we are talking about.
The amount of bleeding to cause a horse to "pull up" during a
race is not known. The degree of discomfort bleeding causes to a horse
in not known.
Bleeding into the lungs can cause severe and continuous
"disease" changes. It should be taken much more seriously than
has been the case to date.
Lung disease does not always lead to bleeding. Lung diseases are not
very common to Australia, however the overall number of horses affected
in Canada, USA and Australia does not differ that much.
Studies done by the University of Illinois showed that Lasix
(furosemide) reduces blood pressure in lung blood vessels. This is
backed up by clinical experience. Administration of this substance is
permitted in many states in the USA. It works by making the body lose
more water through urination.
The principle is simple:
More fluid = more blood = more pressure
Less fluid = less blood = less pressure
This provides a scientific basis for it's use in the treatment of
bleeders. Furosemide belongs to the class of drugs called diuretics
(they make you pee a lot) and is a prohibited substance under AR.117A.
In the journal "The Equine Athlete 1993 Vol 6. No3", under the
heading of Stress fracture of pulmonary capillaries as mechanism for
exercise-induced pulmonary haemorrhage; implications for management (JB
West, O Mathieu-Costello, EK Birks, JH Jones, JR Pascoe and (WS Tyler),
it has been demonstrated there is damage to the small pulmonary vessels
(capillaries) which rupture under pressure.
Ranvet's Rutin Mix is a preparation of Rutin formulated to reduce the
incidence of chronic cases.
Ranvet's Rutin Mix is a Bioflavonoid Compound to aid in the prevention
and treatment of "BLEEDING" in racehorses, which has been
caused by capillary blood vessel fragility and certain nutritional
deficiencies. These compounds include Hesperidin and Troxerutin and have
been claimed to increase the resistance of the capillaries and reduce
their permeability to red cells.
Treatment: It is generally advised to
commence using Ranvet's Rutin Mix immediately after a horse is found to
"bleed" and continue using during spelling period, and for AT
LEAST two months after training re-commences. If a horse is found to be
particularly susceptible to "bleeding" attacks continue
treatment on a daily basis throughout the animal's racing career.
Directions for Use: Mix the Rutin Mix thoroughly through the
feed. Daily Dose Rates: 60g per day, a measure is included, one
level measure holds 30g.Preferably split the 60g daily dose between the
morning and night feeds.
Consult your Veterinarian if the condition does not improve.
Pack Sizes
Ranvet's Rutin Mix is available in a 2kg bucket.
Group One Seal of Quality
Ranvet Rutin Mix put your horses on the cutting edge of high performance
feeding. Products that carry the Group One Seal of Quality are
formulated to meet the requirements of racing at Group One level - the
highest level of competition - by Ranvet; the name you can trust for
quality.
Where to get it
Click here for list of stockists
Contact your local feed supplement supplier, veterinary surgeon or for
your nearest stockist call the Ranvet Technical Information Hotline on
1800 727 217
Need help?
contact
Ranvet
Ranvet Pty Ltd
Technical Information Hotline: 1800 727 217
Tel: 02 9666 1744 Fax: 02 9666 1755
Tel :International + 61 2 9666 1744 Fax :International + 61 2 9666 1755
10-12 Green Street, Botany, NSW, 2019, Australia
Copyright © 2003 Ranvet
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