scholarly journals Torula yeast has greater digestibility of amino acids and phosphorus, but not energy, compared with a commercial source of fish meal fed to weanling pigs

2020 ◽  
Vol 98 (1) ◽  
Author(s):  
L Vanessa Lagos ◽  
Hans H Stein
Keyword(s):  
Amino Acids ◽  
Fish Meal ◽  
Latin Square ◽  
Sole Source ◽  
Adaptation Period ◽  
Weanling Pigs ◽  
Ileal Digestibility ◽  
Torula Yeast ◽  
Microbial Phytase ◽  
Commercial Source

Abstract Three experiments were conducted to test the hypothesis that the standardized ileal digestibility (SID) of AA, concentrations of DE and ME, and the standardized total tract digestibility (STTD) of P in a source of torula yeast are not different from values obtained in Menhaden fish meal. In experiment 1, six weanling barrows (initial BW: 11.7 ± 0.4 kg) were prepared with a T-cannula in the distal ileum and allotted to a replicated 3 × 3 Latin square design with 3 diets and 3 periods. In each period, there were 5 d of adaptation and 2 d of collection. Two cornstarch-based diets using the torula yeast or fish meal as the sole source of AA and a N-free diet were formulated. The SID of CP and all AA was greater (P < 0.05) in torula yeast than in fish meal. In experiment 2, 24 weanling barrows (initial BW: 14.4 ± 1.1 kg) were individually housed in metabolism crates and allotted to a corn-based diet or 2 diets based on a mixture of corn and torula yeast or corn and fish meal. Feces and urine samples were collected for 4 d following a 5-d adaptation period. There were 8 replicate pigs per diet and fecal and urine materials were collected. Results of this experiment indicated that there were no differences in the concentration of DE and ME (DM basis) between torula yeast and fish meal. In experiment 3, a total of 32 weanling barrows (initial BW: 11.9 ± 1.1 kg) were allotted to 4 diets and 8 replicate pigs per diet. Pigs were placed in individual metabolism crates. The torula yeast or fish meal were used in 2 diets containing either 0 or 500 units of microbial phytase. Feces samples were collected as described for experiment 2. The STTD of P in torula yeast was greater (P < 0.05) than in fish meal, but regardless of ingredient, there was no effect of the inclusion of phytase in the diets. In conclusion, the SID of AA and the STTD of P in torula yeast is greater than in fish meal, but values for the concentration of DE and ME in torula yeast are not different from those in fish meal. Therefore, the torula yeast that was used in the present experiments may be included at the expense of fish meal in diets fed to weanling pigs if the concentration of standardized ileal digestible AA is considered in the formulation.

PSVI-13 Amino Acid Supplementation During the Adaptation Period Did Not Affect the Standardized Ileal Digestibility of Amino Acids in Corn and Soybean Meal Fed to Pigs

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 200-201
Author(s):  
Hyunjun Choi ◽  
Sun Jong You ◽  
Beob Gyun G Kim
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Soybean Meal ◽  
Latin Square ◽  
Sole Source ◽  
Adaptation Period ◽  
Amino Acid Supplementation ◽  
Ileal Digestibility ◽  
Indispensable Amino Acids ◽  
Dietary Treatments

Abstract The objective was to determine the influence of amino acid (AA) supplementation during the adaptation period on the ileal digestibility of crude protein and AA in corn and soybean meal (SBM). Six barrows with an initial body weight of 30.9 ± 2.6 kg fitted with a T-cannula in the distal ileum were assigned to a 6 × 6 Latin square design with 6 dietary treatments and 6 periods. Two experimental diets contained corn or SBM as the sole source of AA and an N-free diet was additionally prepared. For AA supplementation groups, an AA mixture consisted of Gly, Lys, Met, Thr, Trp, Ile, Val, His, and Phe was added to the corn diet and the N-free diet at the expense of cornstarch, and an AA mixture of Lys, Met, and Thr was added to the SBM diet. All diets contained 0.5% of chromic oxide. The 6 experimental diets were fed to the pigs for 4 and half days, and the 3 diets containing AA mixture were switched to the respective diets without AA mixture during the following 2 and half days. Ileal digesta were collected during the last 2 days. The addition of AA mixture during the adaptation period caused increased apparent ileal digestibility of Arg and Trp in corn (P < 0.05), but did not affect that in SBM. The addition of AA mixture during the adaptation period caused increased apparent ileal digestibility of Pro and Gly regardless of feed ingredient (P < 0.05), but did not affect that of other AA. All AA except Pro in corn and SBM were unaffected by the addition of AA mixture during the adaptation period. In conclusion, the addition of amino acid during the adaptation period does not affect the standardized ileal digestibility of indispensable amino acids in feed ingredients.

scholarly journals PSVIII-34 Late-Breaking Abstract: Additivity of digestible amino acids in hatchery byproducts fed to nursery pigs

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 343-345
Author(s):  
Beob G Kim ◽  
Jung Yeol Sung
Keyword(s):  
Amino Acids ◽  
Latin Square ◽  
Sole Source ◽  
Adaptation Period ◽  
Experimental Diet ◽  
Nursery Pigs ◽  
Ileal Digestibility ◽  
Collection Period ◽  
The Individual ◽  
Digestible Amino Acids

Abstract The objectives were to determine standardized ileal digestibility (SID) of amino acids (AA) in hatchery byproducts fed to nursery pigs and to test the additivity of ileal digestible AA concentrations in hatchery byproducts. Ten barrows (initial body weight = 11.3 ± 1.3 kg) surgically fitted with T-cannulas at the distal ileum were individually housed in pens. Four diets were prepared to contain 30% of infertile eggs, unhatched eggs, culled chicks, or a mixture (20% dried infertile eggs + 20% dried unhatched eggs + 60% dried culled chicks) as the sole source of nitrogen. A nitrogen-free diet was additionally prepared to measure basal endogenous losses of AA. All experimental diet contained 0.5% chromic oxide as an indigestible index. Ten pigs were assigned to a replicated 5 × 4 Latin square design with 5 diets and 4 periods. Each period consisted of a 5-d adaptation period and a 2-d collection period. The hypothesis was that the determined digestible AA concentrations of the mixture are not different from the calculated values based on digestible AA in the individual ingredients. A t-test was used to determine the additivity of digestible AA concentrations in individual ingredients. Infertile eggs had greater (P < 0.05) SID of all indispensable AA except for lysine and methionine compared with culled chicks. The SID of all indispensable AA except for tryptophan was not different between culled chicks and the mixture. The calculated apparent and standardized ileal digestible AA in the mixture were not different from the determined values, but calculated ileal digestible tryptophan in the mixture was less (P < 0.05) than the measured value. In conclusion, ileal digestibility of most indispensable AA in infertile eggs is greater than that in culled chicks and ileal digestible AA values are additive in the mixture except for tryptophan.

scholarly journals A new source of high-protein distillers dried grains with solubles (DDGS) has greater digestibility of amino acids and energy, but less digestibility of phosphorus, than de-oiled DDGS when fed to growing pigs

2020 ◽  
Vol 98 (7) ◽  
Author(s):  
Minoy Cristobal ◽  
Jessica P Acosta ◽  
Su A Lee ◽  
Hans H Stein
Keyword(s):  
Amino Acids ◽  
Crude Protein ◽  
Block Design ◽  
Latin Square ◽  
Sole Source ◽  
Growing Pigs ◽  
Ileal Digestibility ◽  
Distillers Dried Grains ◽  
Randomized Complete Block Design ◽  
Microbial Phytase

Abstract AbstractThree experiments were conducted to test the hypothesis that standardized ileal digestibility (SID) of amino acids (AA), concentration of metabolizable (ME), and standardized total tract digestibility (STTD) of P in a new source of distillers dried grains with solubles (DDGS; ProCap DDGS) are greater than in conventional de-oiled DDGS. In experiment 1, nine barrows (initial BW: 67.2 ± 6.4 kg) with a T-cannula in the distal ileum were allotted to a triplicated 3 × 3 Latin square design with three diets and three periods for a total of nine replicate pigs per diet. Two diets included ProCap DDGS or de-oiled DDGS as the sole source of crude protein (CP) and AA. An N-free diet was used to determine the basal endogenous losses of CP and AA. Ileal digesta were collected on days 5 and 6 of each period after 4 d of adaptation to diets. Results from experiment 1 indicated that ProCap DDGS contained more CP and AA compared with de-oiled DDGS. The SID of all AA in ProCap DDGS was greater (P < 0.001) compared with de-oiled DDGS with the exception that the SID of Pro was not different between the two sources of DDGS. In experiment 2, 24 growing barrows (initial BW: 32.7 ± 3.1 kg) were housed individually in metabolism crates and used in a randomized complete block design and fed a corn-based diet or two diets containing corn and each source of DDGS with eight replicate pigs per diet. Fecal and urine samples were collected for 4 d after 7 d of adaptation. Results from experiment 2 indicated that concentration of ME in ProCap DDGS was greater (P < 0.05) compared with corn or de-oiled DDGS. In experiment 3, 32 growing barrows (initial BW: 20.2 ± 0.9 kg) were placed in metabolism crates and allotted to four diets with eight pigs per diet using a 2 × 2 factorial treatment arrangement. The de-oiled DDGS and ProCap DDGS were both included in a diet without microbial phytase and a diet with microbial phytase (500 units/kg diet). Pigs were adapted to the diets for 5 d and fecal samples were collected for 4 d. Results from experiment 3 indicated that inclusion of phytase in the diet containing ProCap DDGS increased (P < 0.05) the STTD of P, but addition of phytase to the de-oiled DDGS diet did not increase STTD of P (interaction, P < 0.001), but the STTD of P was greater (P < 0.05) in de-oiled DDGS compared with ProCap DDGS. In conclusion, ProCap DDGS has greater SID of AA and contains more ME, but has reduced STTD of P compared with conventional de-oiled DDGS.

scholarly journals Crystalline amino acids do not influence calculated values for standardized ileal digestibility of amino acids in feed ingredients included in diets for pigs

2020 ◽  
Vol 98 (11) ◽  
Author(s):  
Maryane S F Oliveira ◽  
Jerubella J Abelilla ◽  
Neil W Jaworski ◽  
John K Htoo ◽  
Hans H Stein
Keyword(s):  
Amino Acids ◽  
Latin Square ◽  
Experimental Period ◽  
Adaptation Period ◽  
Ileal Digestibility ◽  
Entire Experiment ◽  
Collection Period ◽  
Dietary Treatments ◽  
Feeding Diets ◽  
Crystalline Amino Acids

Abstract An experiment was conducted to test the hypothesis that addition of crystalline amino acids (AA) to diets during the adaptation or collection periods will not influence calculated values for apparent ileal digestibility (AID) or standardized ileal digestibility (SID) of AA in corn and soybean meal (SBM). Seven ileal-cannulated barrows (initial body weight: 77.9 ± 2.6 kg) were allotted to a 7 × 7 Latin Square design with 7 dietary treatments and 7 periods. Dietary treatments included feeding diets based on corn or SBM without or with crystalline AA for the entire 7-d period or with crystalline AA during the adaptation period, but without crystalline AA during the collection period. An N-free diet was also used. Each experimental period consisted of 5 d of adaptation to the diets followed by 2 d of ileal digesta collection, with digesta being collected for 9 hr/d starting after feeding the morning meal. Thus, the entire experiment lasted 49 d. The AID and SID of crude protein (CP) and AA were calculated using values determined in corn or in SBM without or with crystalline AA to determine if crystalline AA influenced calculated values for AID or SID of CP and AA. Results indicated that addition of crystalline AA to diets fed during the entire 7-d period increased (P < 0.05) AID of some AA in corn and SBM. However, no differences in SID of CP and AA were observed between pigs fed the diets without crystalline AA and pigs fed the diets with crystalline AA if dietary crystalline AA were ignored in calculations of SID values. This indicates that crystalline AA were 100% absorbed before the distal ileum and did not affect calculated values for SID of AA if calculations were based only on the AA in corn or SBM. Therefore, it is concluded that crystalline AA may be added to experimental diets in digestibility experiments before and during collection periods without affecting results, if crystalline AA are disregarded in the calculation of AID or SID of AA in ingredients.

scholarly journals 63 Ileal digestibility of amino acids in a new source of high-protein distillers dried grains with solubles fed to growing pigs

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 148-148
Author(s):  
Jessica P Acosta Medellin ◽  
Su A Lee ◽  
Hans H Stein
Keyword(s):  
Amino Acids ◽  
Statistical Model ◽  
Latin Square ◽  
Sole Source ◽  
Growing Pigs ◽  
High Protein ◽  
High Quality ◽  
Ileal Digestibility ◽  
Distillers Dried Grains ◽  
Very High

Abstract The objective of this experiment was to test if standardized ileal digestibility (SID) of AA in a new source of high-protein distillers dried grains with solubles (HP-DDGS) is greater than in conventional distillers dried grains with solubles (DDGS-CV). Nine barrows (initial BW: 67.2 ± 6.4 kg) with a T-cannula in the distal ileum were allotted to a triplicate 3 × 3 Latin Square design with 3 diets and 3 periods. Two diets included HP-DDGS or DDGS-CV as the sole source of CP and AA. A nitrogen-free diet was used to determine basal endogenous losses of CP and AA. The statistical model included ingredient as fixed effect and square, period, and animal as random effects. Results indicated that that HP-DDGS contained more CP and AA compared with DDGS-CV (Table 1). The SID of all AA in HP-DDGS were greater (P < 0.001) compared with DDGS-CV with the exception that the SID of Pro was not different between the 2 sources of DDGS. The greater concentrations of AA and values for SID of AA in HP-DDGS indicate that this new DDGS source has a very high quality and may be a great source of digestible AA in diets fed to pigs.

scholarly journals Digestibility of amino acids and concentrations of metabolizable energy and net energy are greater in high-shear dry soybean expellers than in soybean meal when fed to growing pigs

2020 ◽  
Vol 98 (7) ◽  
Author(s):  
Diego A Rodriguez ◽  
Su A Lee ◽  
Hans H Stein
Keyword(s):  
Amino Acids ◽  
Soybean Meal ◽  
Latin Square ◽  
Sole Source ◽  
Growing Pigs ◽  
Metabolizable Energy ◽  
Net Energy ◽  
Limited Information ◽  
Total Dietary Fiber ◽  
Ileal Digestibility

Abstract Soybean expellers may be produced by dry extrusion and mechanical oil pressing of soybeans, but there is limited information about the nutritional value of expellers produced via this procedure. Therefore, 2 experiments were conducted to test the hypothesis that standardized ileal digestibility (SID) of CP and amino acids (AA), apparent total tract digestibility (ATTD) of energy and total dietary fiber (TDF), and concentrations of DE, ME, and NE are greater in soybean expellers than in soybean meal (SBM) when fed to growing pigs. Pigs were the offspring of Line 359 boars mated to Camborough females (Pig Improvement Company, Hendersonville, TN). In experiment 1, nine growing barrows (initial BW: 55.98 kg ± 13.75 kg) with T-cannulas installed in the distal ileum were allotted to 1 of 3 diets using a triplicated 3 × 3 Latin square design with 3 periods. Two diets were formulated to contain 35% soybean expellers or 33% SBM as the sole source of AA. A N-free diet was used to determine basal endogenous losses of AA. Ileal digesta were collected on days 6 and 7 of each 7-d period. Results indicated that the SID of most indispensable and dispensable AA were greater (P < 0.05) or tended (P < 0.10) to be greater in soybean expellers than in SBM. In experiment 2, a corn-based diet and 2 diets based on corn and each of the 2 soybean products were formulated. Twenty-four growing barrows (initial BW: 44.88 kg ± 2.17 kg) were allotted to 1 of the 3 diets with 8 pigs per diet. Urine and fecal samples were collected for 4 d after 5 d of adaptation. Results indicated that the ATTD of energy and TDF was not different between soybean expellers and SBM, but the ATTD of TDF in the 2 soybean products was greater (P < 0.05) than in corn. Concentrations of DE and ME in soybean expellers were greater (P < 0.05) compared with corn or SBM. Soybean expellers had greater (P < 0.05) calculated NE compared with SBM, but there was no difference in NE between corn and soybean expellers. In conclusion, values for SID of most AA and DE, ME, and NE in soybean expellers were greater than in SBM.

scholarly journals Effect of microbial phytase and diet fermentation on ileal and total tract digestibility of nutrients and energy in growing pigs

2009 ◽  
Vol 54 (No. 4) ◽  
pp. 163-174 ◽  
Author(s):  
S. Nitrayová ◽  
P. Patráš ◽  
M. Brestenský ◽  
J. Zelenka ◽  
J. Brož ◽  
...  
Keyword(s):  
Amino Acids ◽  
Dry Matter ◽  
Latin Square ◽  
Growing Pigs ◽  
Deficient Diet ◽  
Ileal Digestibility ◽  
Laboratory Setup ◽  
Microbial Phytase ◽  
Four Levels ◽  
Dry Diet

A digestibility experiment using six ileally cannulated growing gilts (initial BW 31.6 kg) was carried out to study the effect of microbial phytase and diet form on apparent ileal and total tract digestibilities of dry matter (DM), nitrogen (N), phosphorus (P), calcium (Ca) and energy and on apparent ileal digestibility of amino acids. The basal P-deficient diet was fed either dry or mixed with water (feed:water ratio 1:2.5) and fermented in a laboratory setup. The enzyme was added to the dry diet at four levels (0, 1 000, 1 500 and 3 000 U/kg) and to the liquid fermented diet at two levels (0 and 1 000 U/kg) using a 6 × 6 Latin square design. The supplementation of microbial phytase to the basal diets significantly (<I>P</I> < 0.05) improved ileal and total tract digestibility of P and tended to improve the digestibility of Ca. Phytase supplementation at 3 000 U/kg to the dry diet improved ileal and total tract P digestibility by approximately 30 and 60%, respectively. A similar effect was found in the liquid fermented diet supplemented with phytase at 1 000 U/kg. As a result of improved P digestibility, faecal P excretion was reduced by 20–40%. There was no significant effect of phytase addition or diet fermentation on the digestibility of DM, N, energy or amino acids. The response in amino acid digestibility to phytase calculated with acid insoluble ash as a marker was slightly higher than that calculated with Cr<sub>2</sub>O<sub>3</sub>.

scholarly journals 166 Enhanced torula yeast has increased nutritional value compared to fish meal when fed to weanling pigs

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 62-63
Author(s):  
Paola Lancheros ◽  
Vanessa Lagos ◽  
Hans H Stein
Keyword(s):  
Nutritional Value ◽  
Fish Meal ◽  
Random Effect ◽  
Latin Square ◽  
Sample Collection ◽  
Ileal Digestibility ◽  
Torula Yeast ◽  
Main Effect ◽  
Period Data ◽  
Main Effects

Abstract The hypothesis that the standardized ileal digestibility (SID) of AA, concentration of ME, and the standardized total tract digestibility (STTD) of P in an enhanced torula yeast (ETY; Arbiom, Raleigh, NC) are not different from values obtained in Menhaden fish meal (FM) was tested. In Exp. 1, 6 ileal cannulated barrows (11.7 ± 0.4 kg) were allotted to a replicated 3 × 3 Latin square with 3 diets (ETY, FM, and N-free) and 3 7-d periods. Ileal digesta were collected on d 6 and 7 of each period. Data were analyzed using the Proc Mixed with diet as main effect and pig as random effect. The SID of AA was greater (P &lt; 0.05) in ETY than in FM (Table 1). In Exp. 2, 24 barrows (14.4 ± 1.1 kg) were individually housed in metabolism crates and allotted to a corn diet or diets based on corn and ETY or corn and FM. Feces and urine were collected for 5 d. Data were analyzed as in Exp. 1. No difference in ME between ETY (3,636 kcal/kg DM) and FM (3,611 kcal/kg DM) was observed. In Exp. 3, 32 barrows (11.9 ± 1.1 kg) were allotted to 4 diets in a 2 × 2 factorial with 2 ingredients (ETY and FM) and 0 or 500 units/kg of phytase. Housing and fecal sample collection was as in Exp. 2. Data were analyzed as in Exp. 1 with diet and phytase as main effects. Phytase did not influence STTD of P, but the STTD of P in the ETY (91%) was greater (P &lt; 0.05) than in FM (68%). In conclusion, the SID of AA and the STTD of P in ETY is greater than in FM, but the ME in ETY is not different from FM.

141 Relationship Between Dietary Fiber and Basal Ileal Endogenous Losses of Amino Acids in Growing Pigs

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 72-72
Author(s):  
Chan Sol Park ◽  
Darryl Ragland ◽  
Olayiwola Adeola
Keyword(s):  
Amino Acids ◽  
Body Weight ◽  
Dietary Fiber ◽  
Latin Square ◽  
Sole Source ◽  
Growing Pigs ◽  
The Other ◽  
Canola Meal ◽  
Initial Body Weight ◽  
Ileal Digestibility

Abstract Two experiments were conducted to determine the influence of sources or concentrations of dietary fiber in nitrogen-free diets (NFD) on basal ileal endogenous losses (BEL) of amino acids (AA) and subsequent standardized ileal digestibility (SID) of AA in feed ingredients for pigs derived from such BEL. In Exp. 1, 20 pigs (initial body weight = 46.5 ± 2.97 kg) were assigned to five diets in a quadruplicate 5 × 2 incomplete Latin square design with two periods. Three NFD containing cellulose (insoluble and fermentable fiber), inulin (soluble and fermentable fiber), or carboxymethyl cellulose (CMC; soluble and non-fermentable fiber) at 40 g/kg plus two diets containing soybean meal (SBM) or wheat distillers’ dried grains (WDDG) as the sole source of nitrogen were prepared. Pigs fed NFD containing CMC had greater (P &lt; 0.05) BEL of AA, except for Arg and Pro, than those fed the other NFD. The SID of most AA in SBM and WDDG corrected by BEL of AA from NFD containing CMC were greater (P &lt; 0.05) than those corrected by BEL of AA from the other NFD. Experiment 2 was conducted with 21 barrows (initial body weight = 34.1 ± 2.57 kg) assigned to seven diets in a triplicate 7 × 3 incomplete Latin square design with 3 periods. Seven diets consisted of three NFD containing 4, 8, or 12 g/kg cellulose and four diets containing corn, wheat, SBM, or canola meal as the sole source of nitrogen. There was no difference in the BEL of AA, except for Pro, among pigs fed NFD with increasing concentration of cellulose. The SID of AA in test ingredients were not affected by BEL of AA from NFD containing increasing concentration of cellulose. In conclusion, chemical characteristics of dietary fiber, but not concentration, affect the BEL of AA in pigs.

scholarly journals 181 Effects of Aspergillus oryzae prebiotic on energy and nutrient digestibility of growing pigs

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 80-80
Author(s):  
Jinlong Zhu ◽  
Gerald C Shurson ◽  
Lynsey Whitacre ◽  
Ignacio R Ipharraguerre ◽  
Pedro E Urriola
Keyword(s):  
Amino Acids ◽  
Aspergillus Oryzae ◽  
Nutrient Content ◽  
Nutrient Digestibility ◽  
Growing Pigs ◽  
Adaptation Period ◽  
Ileal Digestibility ◽  
High Fiber ◽  
Wheat Middlings ◽  
Corn Distillers

Abstract The objective of this study was to determine the effects of an Aspergillus oryzae prebiotic (AOP, Amaferm®) on nutrient digestibility in growing pigs fed high fiber diets. Eighteen growing barrows (initial BW = 50.60 ± 4.90 kg) were surgically equipped with a T-cannula at the distal ileum. Three diets were formulated by including 29.65% corn-distillers dried grains with solubles (DDGS), 36.65% rice bran (RB) or 24.59% wheat middlings (WM) in corn and soybean meal-based diets to meet nutrient requirements for 50 to 75 kg growing pigs. Three additional diets were formulated by supplementing 0.05% AOP at the expense of corn in DDGS (DDGS + AOP), RB (RB + AOP), and wheat middlings (WM + AOP) diets. Pigs were allotted randomly to a triplicated 6 × 2 Youden square design with 6 diets and 2 successive periods. Feces and ileal digesta were collected for 2 d after a 21 d adaptation period, and nutrient content was analyzed to calculate apparent total tract digestibility (ATTD) and apparent ileal digestibility (AID). Standardized ileal digestibility (SID) of amino acids was calculated by correcting AID with basal endogenous amino acid losses determined from the same set of pigs. Supplementation of 0.05% AOP increased (P &lt; 0.05) ATTD of DM, GE, CP, NDF, and ash in DDGS, RB, and WM diets. Diet DE was 35 kcal/kg greater (P &lt; 0.05) in pigs fed AOP supplemented diets compared with those fed diets without AOP. Pigs fed DDGS+AOP diet had greater (P &lt; 0.05) AID of ether extract compared to those fed DDGS diet. However, supplementation of AOP did not (P &gt; 0.05) affect AID of GE, DM, CP, NDF, ash or SID of amino acids. In conclusion, supplementation of AOP in high fiber diets containing DDGS, RB, or WM increased total tract energy value and nutrient digestibility.

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