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Energy Values of Corn and Oats for Young Swine¹

Iowa Agriculture and Home Economics Experiment Station³, Ames, 50010

Abstract

Two comparative slaughter experiments were conducted to determine the energy values of finely ground corn and oats for young swine. All pigs were fed a high-protein (37.8%) basal diet at a level of 3% of body weight. Corn or oats, fed in addition to the basal diet, increased gains and improved feed: gain ratios. Apparent digestibility coefficients of organic nutrients remained constant as corn was added to the basal diet but decreased as oats were added. Energy values of the diets decreased if either corn or oats was added to the basal diet. Average energy values were, in kilocalories per gram of air-dry matter for corn and oats, respectively: gross energy 3.96, 4.13; apparent digestible energy, 3.43, 2.84; metabolizable energy, 3.32, 2.73; nitrogen-corrected metabolizable energy, 3.16, 2.59; and net energy, 2.33, 1.40. The heat increment of oats was much greater than the heat increment of corn.

¹ Journal Paper No. J-7815 of the Iowa Agriculture and Home Economics Experiment Station, Ames. Project 1784.

² Present address: Ralston Purina Co., St. Louis, Missouri.

³ Department of Animal Science.