Dr. John Patience - Effects Of Reduced Oil Distillers Dried Grains With Solubles And Soybean Oil On Dietary Lysine, Fat, And Fiber Digestibility In Corn Based Diets Fed To Growing Pigs

Information about Dr. John Patience - Effects Of Reduced Oil Distillers Dried Grains With...

Published on February 11, 2016

Author: trufflemedia

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1. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION EFFECTS OF REDUCED OIL DISTILLERS DRIED GRAINS WITH SOLUBLES AND SOYBEAN OIL ON DIETARY FAT, FIBER, AND AMINO ACID DIGESTIBILITY IN CORN BASED DIETS FED TO GROWING PIGS N. A. Gutierrez, N. V. L. Serão, and J. F. Patience Iowa State University, Ames, IA

2. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Nutritional impact of dietary fiber in corn co-products • Dietary inclusion of corn co-products increases the concentration of dietary fiber NRC, 2012 • Fiber in corn and its co-products is rich in polymers of glucose (cellulose), xylose and arabinose (arabinoxylans)  Insoluble  Low fermentable Bach Knudsen, 1997; Gutierrez et al., 2014 • Substitution of highly digestible dietary carbohydrates with fiber suppose a reduction in the dietary energy supply  May have an effect on other dietary nutrients

3. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Effect of “Xylose” concentration on the metabolizable energy (ME) of “9” different corn co-products 0.0 0.5 1.0 1.5 2.0 2.5 0 5 10 15 ME,Mcal/lb NSP Xylose, % ME (Mcal/lb) = 1.914 - 0.236*(X) + 0.035*(X2) - 0.002*(X3) P < 0.001 R2 = 0.71 ⌃ Gutierrez et al., 2014 (a)

4. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Introduction • Digestibility of dietary energy decreases with the dietary fiber content Noblet and Perez, 1993 • Fermentation of fiber may contribute little to the overall energy supply of the growing pig, • Fermentability of fiber from corn and its co-products is limited Le Goff and Noblet, 2001; van Milgen, 2006, Bach Knudsen, 2011 • Need for external fat to maintain an adequate concentration of energy in the final diet  Extracted fat – SBO, corn oil etc.  Intact fat – contained in feed ingredients

5. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Introduction • Fat may impair microbial fermentation in the hindgut Degen et al., 2009 • Fat may increase the retention time of digesta Mateos et al., 1982; Cervantes-Pahm and Stein, 2008 – Slow passage rate may improve fermentability of dietary fiber • Increase of dietary fiber may stimulate bowel movement and reduce the transit time of digesta Bastianelli et al., 1996; Schneeman, 1998; Bindelle et al., 2008

6. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Objective To determine the effects of the dietary increase of fiber and fat from reduced oil distillers dried grains with solubles (DDGS-RO) and soybean oil (SBO) • Apparent digestibility of AA, acid hydrolyzed ether extract (AEE), and neutral detergent fiber (NDF)

7. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Materials and methods Experimental design • 18 ileal cannulated growing pigs (BW = 74.5 ± 4.9 lbs) • Individually housed in pens • 6 dietary treatments • 3-period (14 d) incomplete Latin Square design  9 d adaptation  2 d fecal collection  3 d ileal collection  Feed was supplied as 90% ad-libitum • 9 replications / treatment

8. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Chemical composition of diets SBO,% 2 6 DDGS-RO,% 0 20 40 0 20 40 Ingredient, % Corn 81.7 61.7 41.7 77.7 57.7 37.7 Casein 12.5 12.5 12.5 12.5 12.5 12.5 DDGS-RO 0.0 20.0 40.0 0.0 20.0 40.0 Soybean oil 2.0 2.0 2.0 6.0 6.0 6.0 Chromic oxide 0.5 0.5 0.5 0.5 0.5 0.5 Others 3.3 3.3 3.3 3.3 3.3 3.3

9. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Chemical composition of diets SBO,% 2 6 Item DDGS-RO,% 0 20 40 0 20 40 AEE, % 4.4 5.7 6.3 8.4 9.1 10.1 NDF, % 6.9 11.0 14.6 6.8 9.7 14.0 AEE = Acid hydrolyzed ether extract

10. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Materials and methods 1. Sample analysis:  Feed, ileal digesta, and fecal samples:  NDF and acid hydrolyzed ether extract (AEE)  Diets and ileal digesta:  Total AA 2. Measured traits:  Apparent ileal (AID) and apparent total tract digestibility (ATTD): • NDF and AEE  AID of Lys, Met, Thr

11. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Results Apparent ileal digestibility (AID) of Lys, Met, and Thr

12. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Effect of low-fat DDGS and soybean oil (SBO) on the AID of Lys, Met, and Thr SBO, % 2 6 P-value DDGS-RO, % 0 20 40 0 20 40 SEM SBO DDGS-RO SBO * DDGS-RO AID, % Lys 88.9a 85.2b 84.6b 90.2a 84.3b 84.7b 0.82 0.629 <0.001 0.127 Met 92.8a 90.0b 89.6b 93.7a 90.1b 90.1b 0.44 0.008 <0.001 0.223 Thr 81.4a 75.4b 74.6b 82.8a 74.7b 75.6b 1.18 0.371 <0.001 0.434 a,b,c,d Means within a row lacking a common superscript letter are different (P < 0.05) Least squares means of 9 pigs per diet

13. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Effect of dietary increase of corn co- products on the AID of AA 1. Decrease in AID of AA was attributed to heating and addition of solubles during manufacture of DDGS • e.g. AID of Lys is less in DDGS than in corn (Urriola et al., 2009) 2. Insoluble dietary fiber (corn-fiber) has minor effects on the AID of dietary AA (Zhu et al., 2005) 3. Apparent ileal digestibility of Lys, and most AA, is not predictable from the dietary fiber concentration (NSP-Xylose) in corn co-products (Gutierrez et al., 2014)

14. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Results Apparent digestibility of NDF

15. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Effect of low-fat DDGS and soybean oil (SBO) on the AID of dietary NDF DDGS-RO = low-fat DDGS SBO = Soybean oil SBO * DDGS-RO2 P = 0.037 R2 = 0.53 DDGS-RO, % SBO, % 2 6 AID of NDF, % 0 2040 50 40 30 20 10

16. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Effect of low-fat DDGS and soybean oil (SBO) on the ATTD of dietary NDF ATTD of NDF, % DDGS-RO, % SBO, % 55 50 45 40 6 2 0 20 40 SBO * DDGS-RO P = 0.004 R2 = 0.36 DDGS-RO = low-fat DDGS SBO = Soybean oil

17. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Summary • Apparent digestibility of NDF was greatest in diets with high extracted-fat (SBO) and low fiber (DDGS-RO) content  High fat and low fiber intake may increase the retention time of digesta  Increase of time exposure of NDF to intestinal microbiota  This observation is offset by increase of DDGS-RO • At low levels of extracted-fat from SBO, the apparent digestibility of NDF was not affected by fiber increase from DDGS-RO

18. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Results Apparent digestibility of acid hydrolyzed ether extract (AEE)

19. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Effect of low-fat DDGS and soybean oil (SBO) on the AID of dietary fat (AEE) SBO * DDGS-RO P = 0.003 R2 = 0.68 AID of AEE, % DDGS-RO, %SBO, % 85 80 75 70 40 20 0 2 6 DDGS-RO = low-fat DDGS SBO = Soybean oil

20. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Effect of low-fat DDGS and soybean oil (SBO) on the ATTD of dietary fat (AEE) DDGS-RO = low-fat DDGS SBO = Soybean oil ATTD of AEE, % SBO * DDGS-RO P = 0.004 R2 = 0.79 SBO, % DDGS-RO, % 80 75 70 65 60 2 6 40 20 0

21. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Effect of nutrient content on measured values of apparent, standardized and true digestibilities Stein et al., 1997

22. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION True ileal digestibility (TID) of total fat (AEE) SBO, % 2 6 P-value DDGS-RO, % 0 20 40 0 20 40 SEM SBO DDGS-RO SBO * DDGS-RO a,b,c,d Means within a row lacking a common superscript letter are different (P < 0.05) Least squares means of 9 pigs per diet TID, % 94.0 92.5 94.1 94.8 93.8 93.2 1.06 0.586 0.467 0.506 AID, % 72.5a 75.9bc 79.1b 83.5a 83.4a 83.9a 1.05 <0.001 0.005 0.011

23. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION True total tract digestibility (TTTD) of total fat (AEE) SBO, % 2 6 P-value DDGS-RO, % 0 20 40 0 20 40 SEM SBO DDGS-RO SBO* DDGS-RO a,b,c,d Means within a row lacking a common superscript letter are different (P < 0.05) Least squares means of 9 pigs per diet TTTD, % 93.6 91.5 93.2 93.7 92.0 93.9 1.31 0.587 0.108 0.959 ATTD, % 62.6d 67.6c 71.6b 77.5a 77.0a 80.4a 1.30 <0.001 <0.001 0.008

24. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Summary • Inclusion of co-products from the corn-ethanol distillation industry may decrease the AID of dietary AA  Decrease in AID of AA may be the product of heat damage • The AID of AA was not affected by the dietary increase of SBO • Apparent digestibility of NDF was modulated by the dietary fat and fiber intake from SBO and DDGS-RO  Increase the retention time of digesta due to high fat and low fiber intake  Increase of time of exposure of NDF to intestinal microbiota

25. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Summary • Apparent digestibility of AEE was modulated by the dietary concentration of fat from SBO and DDGS-RO • Low values of apparent digestibility of AEE in diets with low dietary fat concentrations are the result of endogenous losses of AEE • No differences were observed among treatments for true digestibility of AEE

26. IOWA STATE UNIVERSITY APPLIED SWINE NUTRITION Thank You Appreciation is expressed to the National Pork Board for financial support, and to DSM and Ajinomoto Heartland for in-kind support.

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