Extrusion processing of low-inhibitor soybeans improves growth performance of nursery pigs fed protein-adequate diets

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dc.contributor.author Lewis, A.J.
dc.contributor.author Reddy, P.G.
dc.contributor.author Jones, D.B.
dc.contributor.author Giesemann, M.A.
dc.contributor.author Hancock, Joe D.
dc.date.accessioned 2010-04-02T17:31:09Z
dc.date.available 2010-04-02T17:31:09Z
dc.date.issued 2010-04-02T17:31:09Z
dc.identifier.uri http://hdl.handle.net/2097/3499
dc.description.abstract One hundred fifty weanling pigs (15.4 lb avg initial wt) were used in a 35-d growth assay to determine the effects of processing method (roasting in a Roast-A-Tron roaster vs extrusion in an Insta-Pro extruder) on nutritional value of soybeans with (+K) and without (-K) gene expression for the Kunitz trypsin inhibitor. Treatments were: 1) soybean meal with added soybean oil; 2) +K roasted; 3) +K extruded; 4) -K roasted; and 5) -K extruded. All diets were corn-based and formulated to 1.25% lysine for d 0 to 14 and 1.10% lysine for d 14 to 35 of the experiment. For d 0 to 14, 14 to 35, and 0 to 35, pigs fed extruded soybeans had improved ADG and F/G compared to pigs fed roasted soybeans. Digestibilities of DM, N, and gross energy were greater for diets with extruded soybeans than diets with roasted soybeans, and diets with soybean meal and soybean oil were intermediate. The response to extrusion processing was greater with -K than +K soybeans, with pigs fed extruded -K soybean having the greatest growth performance and nutrient digestibilities and lowest skinfold thickness of any treatment. Extrusion processing of +K and -K soybeans improved growth performance and nutrient digestibility in weanling pigs fed protein-adequate diets. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Swine day, 1991 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 92-193-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641 en_US
dc.subject Swine en_US
dc.subject Soybeans en_US
dc.subject Process en_US
dc.subject Starter en_US
dc.subject Performance en_US
dc.subject Trypsin inhibitor en_US
dc.subject Immunology en_US
dc.title Extrusion processing of low-inhibitor soybeans improves growth performance of nursery pigs fed protein-adequate diets en_US
dc.type Conference paper en_US
dc.date.published 1991 en_US
dc.citation.epage 43 en_US
dc.citation.spage 40 en_US
dc.description.conference Swine Day, Manhattan, KS, November 21. 1991 en_US
dc.contributor.authoreid jhancock en_US

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