Journal of Animal Science, Vol 69, Issue 8 3299-3307, Copyright © 1991 by American Society of Animal Science

JOURNAL ARTICLE

Measuring suitability of soybean products for early-weaned pigs with immunological criteria

D. F. Li, J. L. Nelssen, P. G. Reddy, F. Blecha, R. D. Klemm, D. W. Giesting, J. D. Hancock, G. L. Allee and R. D. Goodband
Kansas State University, Manhattan 66506.

Two trials were conducted to determine the suitability of soybean products for baby pigs. Weanling pigs (n = 40 and 48 in Trials 1 and 2, respectively) were infused orally (6 g/d) with dried skim milk, soybean meal (SBM, 48% CP); soy protein concentrate, moist extruded soy protein concentrate, or soy protein isolate from d 7 to 12 of age. Pigs were then fed a diet containing the same protein source for 1 (Trial 1) or 2 (Trial 2) wk after weaning (d 21 of age). To avoid exposure of pigs to soybean proteins, the dams of pigs were fed a corn-corn gluten meal-based diet supplemented with lysine and tryptophan from d 109 of gestation. All pigs in Trial 1 were killed at 28 d of age, and samples of ileal digesta and small intestine were obtained. In Trial 2, the soy protein isolate was not included, and all pigs were fed a diet containing 4% soybean oil and 1.25% lysine for the last 3 wk of the trial. Growth performance, skin-fold thickness, after intradermal injection of extracts of the corresponding proteins, and anti-soy immunoglobulin G (IgG) titers were measured. Results indicated that pigs fed diets containing SBM had lower (P less than .05) villus height and xylose absorption but higher (P less than .05) serum anti-soy IgG titers and increased skin-fold thickness compared with the mean of pigs given milk and all other soy treatments.(ABSTRACT TRUNCATED AT 250 WORDS)

This article has been cited by other articles:

				J. Jankowski, J. Juskiewicz, K. Gulewicz, A. Lecewicz, B. A. Slominski, and Z. Zdunczyk The effect of diets containing soybean meal, soybean protein concentrate, and soybean protein isolate of different oligosaccharide content on growth performance and gut function of young turkeys Poult. Sci., October 1, 2009; 88(10): 2132 - 2140. [Abstract] [Full Text] [PDF]

				N. A. Lenehan, J. M. DeRouchey, R. D. Goodband, M. D. Tokach, S. S. Dritz, J. L. Nelssen, C. N. Groesbeck, and K. R. Lawrence Evaluation of soy protein concentrates in nursery pig diets J Anim Sci, November 1, 2007; 85(11): 3013 - 3021. [Abstract] [Full Text] [PDF]

				J. Feng, X. Liu, Z. R. Xu, Y. Z. Wang, and J. X. Liu Effects of Fermented Soybean Meal on Digestive Enzyme Activities and Intestinal Morphology in Broilers Poult. Sci., June 1, 2007; 86(6): 1149 - 1154. [Abstract] [Full Text] [PDF]

				A. Owusu-Asiedu, C. M. Nyachoti, S. K. Baidoo, R. R. Marquardt, and X. Yang Response of early-weaned pigs to an enterotoxigenic Escherichia coli (K88) challenge when fed diets containing spray-dried porcine plasma or pea protein isolate plus egg yolk antibody J Anim Sci, July 1, 2003; 81(7): 1781 - 1789. [Abstract] [Full Text] [PDF]

				A. Owusu-Asiedu, C. M. Nyachoti, and R. R. Marquardt Response of early-weaned pigs to an enterotoxigenic Escherichia coli (K88) challenge when fed diets containing spray-dried porcine plasma or pea protein isolate plus egg yolk antibody, zinc oxide, fumaric acid, or antibiotic J Anim Sci, July 1, 2003; 81(7): 1790 - 1798. [Abstract] [Full Text] [PDF]

				A. Owusu-Asiedu, S. K. Baidoo, C. M. Nyachoti, and R. R. Marquardt Response of early-weaned pigs to spray-dried porcine or animal plasma-based diets supplemented with egg-yolk antibodies against enterotoxigenic Escherichia coli J Anim Sci, November 1, 2002; 80(11): 2895 - 2903. [Abstract] [Full Text] [PDF]

				R. Jiang, X. Chang, B. Stoll, K. J. Ellis, R. J. Shypailo, E. Weaver, J. Campbell, and D. G. Burrin Dietary Plasma Protein Is Used More Efficiently than Extruded Soy Protein for Lean Tissue Growth in Early-Weaned Pigs J. Nutr., August 1, 2000; 130(8): 2016 - 2019. [Abstract] [Full Text]