<p><strong><strong><img src="images-joomla/guides/minus.png" alt="minus" style="vertical-align: middle;" />&nbsp; Too little C</strong>alcium </strong></p>
<p>Calcium and phosphorous build the mineral crystals which are responsible for the hardness and compressive strength of the skeleton. Calcium is also required for a normal function of muscle and nerve cells, and for the glands in the body.</p>
<p>Calcium deficiency in young horses will lead to abnormalities and metabolic diseases of the bones, including rickets and loose bone fragments in joints.</p>
<p><strong>Recommendation</strong>: Good sources of calcium are mineral supplements (including calcium carbonate and dicalcium phosphate), alfalfa hay and most commercial feeds (look for mixes with 6-12 g/kg of calcium). Grass hays may<br />vary from 1.5 to 5 g/kg. It is recommended to insist on a feed analysis for calcium when buying large quantities of hay, especially when it is to be fed to young growing horses.</p>
<p><strong><strong><img src="images-joomla/guides/plus.png" alt="plus" style="vertical-align: middle;" />&nbsp; Too much C</strong>alcium</strong></p>
<p>May give abnormal skeleton development. Too much calcium may reduce the uptake of zinc in the intestines.</p>
<p><strong>Recommendation</strong>: Reduce the amounts of calcium containing vitamin/mineral mixtures. Study the contribution of the different feeds in the ration to the total calcium intake.</p>
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