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Forage Rape for in lamb ewes
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<blockquote data-quote="Global ovine" data-source="post: 7259837" data-attributes="member: 493"><p>Blood iodine levels can be largely influenced by how much is stored in the thyroid glands from the pre brassica grazing. I guess after 3 weeks you should get an idea. Do discuss with your vet treatment options to include length of protection. When testing ask your vet to include a Heinz Body count (dead red blood corpuscles) as these data will indicate the SMCO levels of the crop. If they are low you will have no worries, as that means your brassica crop is low in SMCO, hence TEs will not all be bound up and mainly available to the animals.</p><p></p><p>There are low SMCO options across the brassica species as plant breeders have this on their list of traits to achieve, especially for sheep grazing. High rates of high % S fertilisers should be avoided when sowing brassicas for sheep grazing. Top up the soil S levels to promote clover production when sown back into permanent pasture.</p><p></p><p>I would recommend hay along with the rape at all times to offer more fibre especially when leaf is the main part of the diet. Hay or silage would lower the concentration of SMCO in the rumen allowing more TEs to escape being bound up.</p></blockquote><p></p>
[QUOTE="Global ovine, post: 7259837, member: 493"] Blood iodine levels can be largely influenced by how much is stored in the thyroid glands from the pre brassica grazing. I guess after 3 weeks you should get an idea. Do discuss with your vet treatment options to include length of protection. When testing ask your vet to include a Heinz Body count (dead red blood corpuscles) as these data will indicate the SMCO levels of the crop. If they are low you will have no worries, as that means your brassica crop is low in SMCO, hence TEs will not all be bound up and mainly available to the animals. There are low SMCO options across the brassica species as plant breeders have this on their list of traits to achieve, especially for sheep grazing. High rates of high % S fertilisers should be avoided when sowing brassicas for sheep grazing. Top up the soil S levels to promote clover production when sown back into permanent pasture. I would recommend hay along with the rape at all times to offer more fibre especially when leaf is the main part of the diet. Hay or silage would lower the concentration of SMCO in the rumen allowing more TEs to escape being bound up. [/QUOTE]
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Forage Rape for in lamb ewes
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