<p><img src="images/Fe.jpg" alt="" /></p>
<p style="text-align: justify;"><span id="result_box" lang="fr"><span class="hps alt-edited">Le fer (Fe)</span> <span class="hps">se trouve dans</span> <span class="hps">l'hémoglobine</span><span>, la myoglobine</span>, <span class="hps">les cytochromes</span>, <span class="hps">de nombreux systèmes</span> <span class="hps">enzymatiques.</span> <span class="hps">Le fer joue</span> <span class="hps">un rôle essentiel dans</span> <span class="hps">le transport d'oxygène</span> <span class="hps">la respiration cellulaire.</span></span></p>
<p style="text-align: justify;"><span class="hps">Dans le corps</span> <span class="hps">du</span> <span class="hps">cheval</span> <span class="hps">on trouve</span> <span class="hps">environ</span> <span class="hps">70</span> <span class="hps">mg de fer</span> <span class="hps">par</span> <span class="hps">kg</span> <span class="hps">de poids corporel.</span> <span class="hps">Cela signifie qu'un</span> <span class="hps">cheval</span> <span class="hps atn">(</span>500 kg) <span class="hps alt-edited">comporte</span> <span class="hps">environ</span> <span class="hps">33</span> <span class="hps">g de</span> <span class="hps">fer</span>. <span class="hps">66% se trouvent</span> <span class="hps">dans l'hémoglobine</span>,<span class="hps"> 20% en</span> <span class="hps">myoglobine</span>, <span class="hps">20</span>% <span class="hps">dans</span> <span class="hps">la transferrine</span> <span class="hps atn">(</span>forme <span class="hps">de transport</span>), <span class="hps">la ferritine et</span> l'<span class="hps">hémosidérine</span> <span class="hps atn">(</span>forme de stockage). <span class="hps">0,2</span>% <span class="hps">se trouve dans les</span> <span class="hps">enzymes.</span></p>
<p style="text-align: justify;"><span class="hps alt-edited">Le fourrage et</span> <span class="hps">sous-produits</span> <span class="hps">contiennent</span> <span class="hps">généralement</span> <span class="hps">100-250</span> <span class="hps">mg</span> <span class="hps">Fe</span> <span class="hps">/</span> <span class="hps">kg de matière sèche</span><span>.</span> <span class="hps alt-edited">Les céréales</span> <span class="hps alt-edited">en contiennent généralement</span> <span class="hps">moins de 100 mg</span> <span class="hps">/</span> <span class="hps">kg de matière sèche</span>. <span class="hps">L'absorption du fer</span> <span class="hps">alimentaire</span> <span class="hps">chez le cheval</span> <span class="hps alt-edited">sera vraisemblablement</span> <span class="hps alt-edited">de 15</span> <span class="hps">pour cent ou moins</span><span>.</span> <span class="hps alt-edited">L'utilisation du fer</span> <span class="hps">augmente</span> <span class="hps">dans les rations</span> <span class="hps">carencées en fer</span> <span class="hps">et</span> <span class="hps atn">diminue avec l'</span><span>apport</span> <span class="hps">plus élevé que</span> <span class="hps">la normale</span> <span class="hps">de cadmium</span><span>, le cobalt</span><span>, le cuivre</span><span>, le manganèse</span> <span class="hps">et le zinc</span><span>.</span></p>
<p style="text-align: justify;"><span class="hps alt-edited">Le besoin quotidien</span> <span class="hps">en fer</span> <span class="hps">est d'environ</span> <span class="hps">40-50</span> <span class="hps">mg</span> <span class="hps">/</span> <span class="hps">kg de matière sèche</span> <span class="hps">dans</span> <span class="hps">la ration</span>. <span class="hps alt-edited">Le besoin en</span> <span class="hps">fer</span> <span class="hps">devrait être atteint</span> <span class="hps">dans des conditions</span> <span class="hps">normales d'alimentation</span>.</p>
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