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  1. Article

    Unidentified Chick Growth Factors

    THE previous communication refers to a tentative microbiological assay method for certain unidentified chick growth factors, based on their growth stimulating effect on a strain of lactobacillus isolated from ...

    J. A. WAKELAM, W. P. JAFFE in Nature (1959)

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    Article

    Unidentified Growth Factors

    IT is well known that spent wash (the liquor re maining in the whisky still after distilling the spirit) contains factors which increase the growth of chicks. This growth promotion appears to be unrelated to m...

    K. A. ALLEN, J. STEPHENS, W. P. JAFFE, J. A. WAKELAM in Nature (1959)

  3. Article

    Unidentified Chick Growth Factors in Fermentation By-products

    ‘DISTILLERS dried solubles’ are commonly used in the United States as animal feed ingredients, particularly in rations for young stock. They contain considerable amounts of most of the B vitamins ; but in addi...

    W. P. JAFFE, J. A. WAKELAM in Nature (1956)

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