The effects of folate deficiency and oestradiol administration on the plasma free xamino acid concentrations of the immature hen

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• Present address: Department of Applied Biochemistry and Nutrition, University of Nottingham School of Agriculture, Sutton Bonington, Loughborough, Leics LE12 5RD, England.
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• To whom requests for reprints should be addressed. Also of the Department of Agriculture for Northern Ireland.
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