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Regenerative Agriculture and Direct Drilling
Holistic Farming
"Improving Our Lot" - Planned Holistic Grazing, for starters..
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<blockquote data-quote="Global ovine" data-source="post: 6548819" data-attributes="member: 493"><p>The literature does cover cobalt toxicity, however it states that it would be extremely rare in NZ (I would suggest most of the UK too) as cobalt problems have always been acute deficiency, unless ruminants were repeatedly dosed with oral cobalt treatments increasing bloods to over 400ppm.</p><p>I have no idea what the symptoms would look like, other than reported sudden deaths post high treatment. This stresses the importance of the decimal place if people treat drinking water with Trace elements.</p><p></p><p>Be very wary of soil cobalt test as it combines and accumulates with manganese when soils are water logged. Only use pasture tests in association with animal blood tests. Brassica crops are notorious for their sulphur compounds to lock up all TEs in the rumen, despite the forage being amply supplied, leading to certain TE deficiencies including cobalt. Over liming can lead to reduced cobalt levels.......over a pH of 6.5 pasture/forage cobalt levels decline linearly.</p><p>So the proof lies in the animal, which may not reflect the pasture/forage status and certainly not the soil status.</p><p></p><p>Over production only occurs when the producer is trying to produce more than the lowest limiting factor allows. Trace element deficiencies are usually the easiest and cheapest to correct, allowing production levels to rise to a new equilibrium. The stupidity arises when large doses of macro elements are needed and soil structure is compromised by insufficient plant variety and or cultivation.</p></blockquote><p></p>
[QUOTE="Global ovine, post: 6548819, member: 493"] The literature does cover cobalt toxicity, however it states that it would be extremely rare in NZ (I would suggest most of the UK too) as cobalt problems have always been acute deficiency, unless ruminants were repeatedly dosed with oral cobalt treatments increasing bloods to over 400ppm. I have no idea what the symptoms would look like, other than reported sudden deaths post high treatment. This stresses the importance of the decimal place if people treat drinking water with Trace elements. Be very wary of soil cobalt test as it combines and accumulates with manganese when soils are water logged. Only use pasture tests in association with animal blood tests. Brassica crops are notorious for their sulphur compounds to lock up all TEs in the rumen, despite the forage being amply supplied, leading to certain TE deficiencies including cobalt. Over liming can lead to reduced cobalt levels.......over a pH of 6.5 pasture/forage cobalt levels decline linearly. So the proof lies in the animal, which may not reflect the pasture/forage status and certainly not the soil status. Over production only occurs when the producer is trying to produce more than the lowest limiting factor allows. Trace element deficiencies are usually the easiest and cheapest to correct, allowing production levels to rise to a new equilibrium. The stupidity arises when large doses of macro elements are needed and soil structure is compromised by insufficient plant variety and or cultivation. [/QUOTE]
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Regenerative Agriculture and Direct Drilling
Holistic Farming
"Improving Our Lot" - Planned Holistic Grazing, for starters..
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