man, da hatten wir gerade einen ellenlangen Thread in einer der Yahoo Gruppen, da wollte jemand einen Magnet ins Wasser machen
Spass beiseite, ich habe den Thread ignoriert, denn das Thema ist fuer mich abgehakt, mein Brunnenwasser hat kein Eisen. Vielleicht erinnert sich katiebell, wie man Eisen aus dem Wasser am besten losbekommt.
Heike bean hat die beste Info wie ich finde, halt nur auf Englisch.
http://heikebean.com/nutrition.htm
Das ist ein Problem fuer viele von Euch, aber ich weiss auch nicht wie man das loesen kann. Vielleicht machen Heike und ich uns mal die Muehe das auf Deutsch zu uebersetzten....
Also hier mal der Englische Auszug zum Eisen:
Iron
Iron (Fe) is essential for the horse to be able to transport oxygen throughout his blood. It makes up the center of hemoglobin, which is the oxygen transport molecule in blood.
Iron is also an essential mineral for the transport of oxygen throughout the body, and as such, it is essential that horses receive enough every day.
60-80% of the mineral in a horse's body is found in hemoglobin and myoglobin. Another 20% is stored in the liver, spleen, and other tissues, and the rest is distributed throughout the body in various places.
A moderate deficiency is not a concern for the majority of horses, especially if they have access to soil. Common soil contains a large percentage of iron, and just the dirt and dust in grass or hay can contribute plenty of iron.
If a deficiency were to occur, it would result in anemia. Young foals are more susceptible to anemia than grown horses, though again, it is of little concern since most horses obtain enough of this important mineral.
Except in specific proven deficiency cases, it is suggested that Fe supplements not be given due to the adverse effects outweighing the possible benefits and special caution applies to foals, as any excess is toxic to them.
Iron is quite possibly the most over-supplemented mineral in equine diets. More is never better, and this is particularly true for iron since the horse has no way to actively excrete it. As little as 350 mg of supplemental iron can kill a foal. If iron deficiency is suspected, it should be confirmed by testing serum iron, total iron binding capacity and ferritin levels.
Excess iron has many negative effects, including predisposition to infection, secondary zinc and copper deficiency, predisposition to arthritis and increased risk of tendon/ligament problems, liver disease and altered glucose metabolism – including insulin resistance and overt diabetes. In a self-perpetuating cycle, IR and diabetes also increase iron absorption
The treatment for iron overload in people is blood-letting, periodic blood draws to remove the iron in the serum and contained in the red blood cells. In humans, it is known that regularly giving blood
reduces the risk of developing IR, and lowering the iron burden improves already established IR. In horses, iron build up can be stopped, and levels of ferritin gradually lowered, by instituting a tightly mineral
balanced diet.
Iron toxicity in horses is quite prevalent and often not recognizable by just looking at a horse, but in advanced cases, there are visual clues: dark horses have a reddish sheen on their coat, and mane and tail ends are reddish. Also, chestnut horses lose their rich color and look more like a palomino.
Also, iron, copper and zinc closely interact, and most often an apparent iron overload is not just due to the amount of iron, but is because of lack of copper and zinc,( these two minerals being responsible for coat color). In a healthy horse, iron to copper to zinc ratio can be 10 :1 : 3, but in sick or metabolically challenged horses it should be 4 : 1 : 3, which usually means quite high levels of copper and zinc supplementation. Once enough copper and zinc are supplemented the iron overload can slowly balance itself out. The reason these ratios are so important is that iron competes with copper for uptake by the cell walls. It is sort of like a lottery: when there are 49 black balls in a machine and only 1 white ball, it is quite easy to predict which color will be going into the chute. Zinc and copper have a similar relationship, too much of one can cancel out the other.
Again, while commercial supplements may meet basic requirements in correct ratios, they do not contain enough to compensate for high iron content in the diet, which is quite a common occurrence. Only diet analysis can provide this information.
hier haben Anfeinder keinen Platz, hier wollen wir alle neuen Ansätze wissen, damit wir sie bis ins Detail durchdenken können. 