Ohio State University Extension Bulletin

Research and Reviews: Swine 2001

Special Circular 185-01


Evaluating the Effects of Soybean Meal Particle Size on Amino Acid Ileal Digestibility in Grower-Finisher Swine

Summary

Particle size reduction increases the digestibility of amino acids, which is greater when the SBM is reduced to an average particle size of 600-microns. To achieve a particle size of 600-microns, the SBM source that we used required one pass through a hammer mill with no screen. Particle sizes smaller than 400 to 500 microns have been shown to have detrimental effects on the digestive tract of pigs (ulcers) when fed over a long period of time.

References

AOAC. 1995. Official Methods of Analysis. Association of Official Analytical Chemists, Arlington, VA.

ASTM. 1985. Manual on test sieving methods. American Society for Testing and Materials. Philadelphia, PA.

Hanson, J. 2000. Personal communication. Methodology for ileal cannulation in swine.

NRC. 1998. Nutrient Requirements of Swine. (10th Ed.) National Academy Press, Washington, D.C.

Owsley, W.F., D.A. Knabe, and T.D. Tanksley, Jr. 1981. Effect of sorghum particle size on digestibility of nutrients at the terminal ileum and over the total digestive tract of growing-finishing pigs. J. Anim. Sci. 52:557.


Back | Forward | Table of Contents