J. Anim Sci.
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J. Anim Sci. 1976. 42:866-870.
© 1976 American Society of Animal Science
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Assessment of the Concentration of Biologically Available Vitamin B-6 in Corn and Soybean Meal

J. T. Yen, A. H. Jensen and D. H. Baker

University of Illinois1, Urbana 61801

Abstract

Eight-day-old crossbred chicks were used to investigate the availability of vitamin B-6 from yellow corn, solvent-extracted soybean meals (SBM) and autoclaved, full-fat soybeans (Harosoy variety). The corn was either nonroasted or roasted to temperatures of 80, 120 and 160 C. Using a standard curve procedure with growth as the criterion, the concentration (ppm) of available vitamin B-6 was estimated to be 2.68, 3.15, 2.99, 2.22, 4.67, 4.95 and 3.32 for nonroasted corn, 80C corn, 120C corn, 160C corn, SBM, dehulled SBM and autoclaved Harosoy, respectively. The chick's requirement for available vitamin B-6 was estimated to be 1.1 ppm. Chick growth was observed to be a better indicator of available vitamin B-6 activity than blood glutamic-oxalacetic transaminase activity.

Footnotes

1 Department of Animal Science.






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Copyright © 1976 by the American Society of Animal Science.