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Magnesium in
horses
Magnesium
absorption takes place in the small intestine, with only 10-60% of the magnesium
being absorbed from feedstuff and 70% from mineral substances containing
magnesium. A horse weighing 500 kg stores about 125 mg of magnesium, 75 g of
this amount in the skeleton, another 45 g in the heart, muscles and liver. The
normal plasma / serum level in horses is 18-24 mg Mg/l or 0.75 - 1.0 mmol Mg/l
(Meyer, 1996).
The
recommended dietary magnesium supply for horses is 20 mg Mg/kg of body weight
per day, corresponding to a maintenance requirement of 10 g Mg/500 kg body
weight.
The
following deviations in requirement levels should be kept in mind: Work
light, moderate, heavy: 10.5 g / 11 g / 13 g / animal / day Pregnancy
9th-11th month: 10.5 g / animal / day Lactation, 3rd month: 13 g / animal /
day Foals 3rd-6th / 7th-12th month: 5 g / 6 g / animal / day Foals
13th-18th / 19th-24th month: 7.5 g / 8.5 g / animal / day Foals 25th-36th
month: 9 g / animal / day (modified, Meyer, 1996)
Magnesium
supply in grazing mares and foals is usually sufficient at average grass
contents levels of c. 2 g Mg/kg DS (Finkler-Schade et al., 1996). In winter,
however, feed magnesium deficiencies are to be expected in 3% of breeding
operations (Hackl‰nder et al., 1996). Since the magnesium content in mare's milk
drops off rapidly, only 20% of the foal's requirement is ensured beginning with
the 3rd month. A connection is suspected between magnesium (and other
substances) supply deficiencies in foals during the first year and occurrence of
posture and limb changes.
Stress
The
negative effects of major physical and mental stress on magnesium balance and
the resulting vicious circle of stress are something every rider is familiar
with. Horses with only marginal magnesium supplies react to any additional
stress load with loss of appetite, muscle strains, nervousness or poor
condition, since the physiological requirement can only be met temporarily from
metabolic reserves.
Zinc in
horses
The zinc
requirement for horses of all ages is around 50 mg/kg feed DS.
With
EQUISTRO BETAMAG forte, liquid the main stress-protective effect is utilized
along with the positive effects of zinc on metabolism and growth, coat quality
and hoof hardness. Like magnesium, zinc plays an important role in stress
protection. Serum zinc levels drop in stressful situations as a sign of
depletion.
Since
supplies of zinc in green fodder and hay are not reliable, supplementation of
zinc is generally recommended for horses.
EQUISTRO BETAMAG forte, liquid
is more than just a combination of magnesium and zinc. The special liquid
formula specially developed for horses of magnesium bound to amino acids, i.e.
organic magnesium, and zinc ensures optimum rapid bioavailability in periods of
increased demand. The trace elements are taken up by the organism quickly,
completely and unchanged, and transported to specific tissues (tissue
targeting), where they penetrate the membranes of cells with depleted supplies
by a natural process and are thus made available for cellular metabolism. The
carrier substance enhances or supplements the effect in an ideal manner.
This
product supports desirable training effects, increases the fertility of breeding
mares by reducing transport stress and anxiety reactions in strange
surroundings, prevents the negative influences of stress on the behaviour of the
horse and its immune system, maintains appetite and stabilizes gastrointestinal
function.
Improvement
of behavioural and metabolic disturbances in the horse can be expected after
only three days of use of EQUISTRO BETAMAG forte, liquid.
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