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Composition of Commercial Samples of Poultry Oil

Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701; Phone: (501) 575-2065; FAX: (501) 575-3474

Correspondence: P. W. Waldroup

Analytical values for a number of samples of poultry oil were obtained and subjected to statistical analysis. Compared to classical literature values, present-day poultry oil is higher in stearic (C_18:0) and oleic (C_18:1) and lower in linolenic (C_18:2) acid. Ratios of unsaturated to saturated fatty acids were similar, indicating that metabolizable energy content would be very similar to previously published values. However, meeting minimum dietary levels of linolenic acid requires that values should be modified. Recent assays of fatty acid content of broiler adipose tissue suggest a marked reduction in linolenic acid content compared to earlier reports. This study attempted to evaluate the composition of commercial poultry oil for standard composition.

Key Words: Fat supplements • linolenic acid • metabolizable energy • poultry oil