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Sulphur Toxicity
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<blockquote data-quote="cjmc" data-source="post: 1587385" data-attributes="member: 27842"><p>Bioavailability is relative, it's not a standard figure. In diets without mineral antagonists sulfates will be just fine. The animal will absorb enough mineral & won't have issues. But if you add a bunch of heavy metals like iron & molybdenum or certain other minerals like sulfur & now sulfates get bound to those heavy metals/ other antagonists and the animal can't absorb them greatly reducing its bioavailability.</p><p></p><p>If you live in one of these environments that's why you need a higher quality source of trace minerals, because they don't get bound up like sulfates/ oxides can. </p><p></p><p>As far as levels go, that's entirely dependent on intake. 1200ppm copper at 4oz/h/d is the industry standard (roughly copper requirement for a mature cow).</p></blockquote><p></p>
[QUOTE="cjmc, post: 1587385, member: 27842"] Bioavailability is relative, it's not a standard figure. In diets without mineral antagonists sulfates will be just fine. The animal will absorb enough mineral & won't have issues. But if you add a bunch of heavy metals like iron & molybdenum or certain other minerals like sulfur & now sulfates get bound to those heavy metals/ other antagonists and the animal can't absorb them greatly reducing its bioavailability. If you live in one of these environments that's why you need a higher quality source of trace minerals, because they don't get bound up like sulfates/ oxides can. As far as levels go, that's entirely dependent on intake. 1200ppm copper at 4oz/h/d is the industry standard (roughly copper requirement for a mature cow). [/QUOTE]
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