Abstract
‘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 addition there is strong evidence of the presence of unknown growth factors1. It appears that part of the growth response which is shown when the product is added to practical rations complete in all known vitamins may be due to inorganic factors2 ; but it is evident that there is also some organic factor of biological significance3.
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Novak, A. F., and Hange, S. M., J. Biol. Chem., 174, 647 (1948).
Morrison, A. B., Scott, M. L., and Norris, L. C., Poultry Sci., 34, 738 (1955). Dannenburg, W. N., Reid, B. L., Rozacky, E. E., and Couch, J. R., Poultry Sci., 34, 1023 (1955).
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Wakelam, J. A. (to be published).
Committee on Animal Nutrition. Nutrient Requirements for Poultry. U.S. National Research Council Publication 301. Revised Jan. 1954.
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JAFFE, W., WAKELAM, J. Unidentified Chick Growth Factors in Fermentation By-products. Nature 178, 414 (1956). https://doi.org/10.1038/178414a0
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DOI: https://doi.org/10.1038/178414a0
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