title: The effect of enzyme treatment of soybean meal on oligosaccharide disappearance and chick growth performance.
abstract: Research was conducted to determine the effects of enzymatically hydrolyzing raffinose and stachyose from soybean meal (SBM) on fecal oligosaccharide concentration and growth performance of chicks fed a corn-SBM diet. The alpha-galactosidase treatment was optimized for oligosaccharide degradation. Enzyme treatment degraded raffinose and stachyose in SBM by 69 and 54%, respectively, compared to untreated soybean meal (USBM). Diets containing enzyme-treated soybean meal (ESBM) resulted in excreta raffinose and stachyose concentrations reduced to below measurable levels (<0.1 mg/ g feces). Enzyme treatment increased (P < 0.05) TME from 2,974 to 3,328 kcal/kg. Three chick growth studies were conducted to determine the effect of feeding ESBM on growth performance. There were no statistical differences (P > 0.05) in growth performance among treatments. Chicks fed the ESBM diet had an increased (P < 0.05) fecal neutral detergent fiber (NDF) content in one of two studies. A fourth experiment was conducted to determine if heating, used to enhance enzyme treatment, would decrease lysine availability. Heating significantly (P < 0.05) reduced lysine availability compared to USBM. These experiments demonstrated that feces could be made void of raffinose and stachyose, but chick growth performance was not significantly (P > 0.05) improved by enzyme treatment.
authors.affiliation: Department of Animal Sciences, CAFNR, University of Missouri, Columbia 65211, USA.
authors.forename: K K
authors.initials: KK
authors.lastname: Graham
authors.forename: M S
authors.initials: MS
authors.lastname: Kerley
authors.forename: J D
authors.initials: JD
authors.lastname: Firman
authors.forename: G L
authors.initials: GL
authors.lastname: Allee
mesh_terms: D000821:Animal Feed; D000818:Animals; D002645:Chickens / Q000254:growth & development*; D004043:Dietary Fiber / Q000032:analysis / Q000378:metabolism; D004063:Digestion; D005243:Feces / Q000737:chemistry; D005511:Food Handling; D006868:Hydrolysis; D008297:Male; D009844:Oligosaccharides / Q000378:metabolism*; D011887:Raffinose / Q000378:metabolism; D012996:Solutions; D013025:Glycine max / Q000737:chemistry / Q000378:metabolism*; D000519:alpha-Galactosidase / Q000378:metabolism*
chemical_list: D004043:Dietary Fiber; D009844:Oligosaccharides; D012996:Solutions; C005695:stachyose; D000519:alpha-Galactosidase; D011887:Raffinose