Dietary protein recommendations for pigs were developed using corn-soybean meal diets. Diets formulated to contain less protein than recommended will result in reduced performance because of a deficiency of amino acid(s). However, more recent research suggests that pig performance can be maintained when feeding diets containing a substantially reduced protein content if limiting amino acids are supplemented to meet dietary requirements. Previous research at South Dakota State University has identified lysine, tryptophan and threonine as deficient amino acids in a 12% protein, corn-sunflower meal diet. The objectives of the trial reported herein were to study the effect of protein level (12, 15, 18 and 21%) in corn-sunflower meal diets containing all essential amino acids in excess of National Research Council recommendations and to determine the effect of glutamic acid supplementation to a low protein (12%) diet as a non-essential amino acid nitrogen source.
Number of Pages
Agricultural Experiment Station, South Dakota State University
Borg, B. S.; Libal, G. W.; and Wahlstrom, R. C., "The Effect of Protein Level and Amino Acid Supplementation of Sunflower Meal Diets for Young Pigs" (1985). South Dakota Swine Field Day Proceedings and Research Reports, 1985. 7.