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The metabolic behaviour of cobalt and of vitamin B12 in poultry, and the biosynthesis of vitamin B12 after oral supply of inorganic cobalt



The metabolic behaviour of cobalt and of vitamin B12 in poultry, and the biosynthesis of vitamin B12 after oral supply of inorganic cobalt



Arch. Geflugelk, 23: 32-38



The following experiments are outlined. Two laying hens were given 0.6 micro g. vitamin B12labelled with 0.5 micro C.60Co and were killed 24 hr. later; radio-activity was measured in homogenized organs and tissues from one hen. Except liver with 5 per cent. and caecal contents with 30 per cent. in the protein-free filtrate, almost all activity was present in protein. In blood serum it was entirely in a fraction which moved between alpha 1 alpha 2globulin.

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Accession: 014258174

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