These relationships are complicated by the overall effect of environment and agronomics. The uses, the important factors, and the base comparison test values are given in the table below. In 1997, all Iowa Gold entries were high-oil corn which was developed for feed applications where energy supplementation is needed. Poultry, dairy, and portions of swine feeding are most adaptable to high-oil corn. Note that elevated oil is actually a negative attribute for dry milling because it produces high fat grits.
Dry millers prefer low fat grits.
Harder corn may have high starch, but may be relatively unextractable. Very high test weight is indicative of hard corn, which is difficult to wet mill. All rights reserved. Justice Statement for ISU Extension Extension programs are available to all without regard to race, color, national origin, religion, sex, age, or disability.