HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Karr-Lilienthal, L. K. Articles by Fahey, G. C. Search for Related Content PubMed PubMed Citation Articles by Karr-Lilienthal, L. K. Articles by Fahey, G. C., Jr.

Ileal amino acid digestibilities by pigs fed soybean meals from five major soybean-producing countries

L. K. Karr-Lilienthal^*, N. R. Merchen^*, C. M. Grieshop^*, M. A. Flahaven^*, D. C. Mahan, N. D. Fastinger, M. Watts and G. C. Fahey, Jr.^*,1

^* Department of Animal Sciences, University of Illinois, Urbana 61801; and and Department of Animal Sciences, The Ohio State University, Columbus 43210

¹ Correspondence: 132 Animal Sciences Laboratory, 1207 W. Gregory Dr. (phone: 217-333-2361; fax: 217-244-3169; e-mail: gcfahey{at}uiuc.edu).

Growing conditions and processing technologies to which soybeans (SB) are exposed have an effect on digestibilities of AA found in the resultant soybean meals (SBM). This study evaluated SBM from five major SB-producing countries (Argentina, Brazil, China, India, and the United States). An industry representative in each country collected samples of unprocessed SB and SBM subjectively determined to be of high, intermediate, or low quality. The SB from each country were processed into SBM under uniform conditions in the United States. Five experiments (each examining the three SBM and the SB processed in the United States from a single country) were conducted to determine true ileal AAd digestibilities. In addition, a standard SBM purchased on the open market in the United States was used in all experiments as a control. Data from pigs fed a low-protein casein diet in each study were used to calculate true AA digestibilities. Pigs were fitted with simple T-cannulas at the terminal ileum and allotted to treatments in Latin square design experiments. Duplicate experiments were conducted at the University of Illinois and at The Ohio State University. Within each country comparison, pigs fed the SBM processed in the U.S. from SB grown in the five countries had lower (P < 0.05) true total amino acid (TAA) digestibilities than did pigs fed any of the SBM prepared within the country of origin, except the United States. This indicates that processing conditions used at the U.S. pilot plant were not ideal when using SB from other countries. True TAA digestibilities of the diets containing the high-, intermediate-, and low-quality SBM did not differ, except for China, where the low-quality SBM (83.5%) had a lower (P < 0.05) digestibility than the intermediate- (89.6%) or high- (89.0%) quality meals. Soybean meal produced in Argentina (average, 87%) and Brazil (average, 82%) had lower (P < 0.05) true TAA digestibilities than did the standard SBM (91%), indicating that the processing plants in those countries may produce a less digestible SBM than that available on the open market in the United States.

Key Words: Amino Acid • Digestibilities • Soybean Meal • Swine

This article has been cited by other articles:

				F. O. Opapeju, A. Golian, C. M. Nyachoti, and L. D. Campbell Amino acid digestibility in dry extruded-expelled soybean meal fed to pigs and poultry J Anim Sci, May 1, 2006; 84(5): 1130 - 1137. [Abstract] [Full Text] [PDF]