J. Appl. Poult. Res.
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J APPL POULT RES 1992. 1:122-128
© 1992 Poultry Science Association
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Field Reports

Practical Methods to Determine the Presence of Tannins in Sorghum

Ralph D. Waniska, Leda F. Hugo and Lloyd W. Rooney

Department of Soil & Crop Sciences, Faculty of Food Science and Technology Texas A&M University, College Station, TX 77845-2474; Phone: (409) 845-2925; FAX: (409) 845-0456

Correspondence: Ralph D. Waniska

Some types of grain sorghum contain tannins which are deleterious to poultry performance. The quantitative test for sorghum, while useful, cannot feasibly be employed in quality control programs in which quick results are needed at the elevator or feed mill. Two qualitative tests, the "scratch" test and the "bleach" test, are described. These tests will help quality control personnel detect sorghums that contain tannins.

Key Words: Tannins • sorghum • milo • analysis






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