scholarly journals 122 Nutrient digestibility of heat pretreated or multienzyme treated corn whole stillage for pigs

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 107-107
Author(s):  
Kevin Jerez-Bogota ◽  
Tofuko A Woyengo
Keyword(s):  
Amino Acids ◽  
Nutritive Value ◽  
Direct Method ◽  
Latin Square ◽  
Nutrient Digestibility ◽  
Net Energy ◽  
Ileal Digestibility ◽  
Whole Stillage ◽  
Net Energy Value ◽  
Corn Ddgs

Abstract A study was conducted to determine standardized ileal digestibility (SID) of amino acids (AA) and net energy value (NE) for pigs of heat-pretreated or enzyme-predigested corn whole stillage (WS; slurry material that is dried into DDGS). Ten ileal-cannulated barrows (initial BW = 65.6 ± 3.5 kg) were fed 5 diets in a replicated 5 × 5 Latin square design. The diets were cornstarch-based, containing corn DDGS, untreated WS (C-WS), heat-pretreated WS (Heat-WS) or enzyme-predigested WS (Predigested-WS), and N-free diet. Digestibility of AA in feedstuffs was determined by the direct method. Energy digestibility in feedstuffs was determined by difference from the N-free diet. The WS was heat pretreated at 140 °C and 70 psi for 15 min. Predigestion of the WS was achieved by incubating with multienzyme that supplied xylanase, celullase, α-galactosidase at 2.4, 2.0 and 2.3 mg per gram of WS, respectively, for 12 h at 55 °C. On DM basis, DDGS, C-WS, Heat-WS, Predigested-WS contained 32.8, 30.8, 28.18, and 39.7% CP, 39.8, 51.0, 52.2 and 53.8% NDF, and 4.5, 4.6, 5.7 and 4.5% EE, respectively. The SID of Lys for C-WS (75.5%) was greater (P < 0.05) than that for C-DDGS (67.4%) and Heat-WS (53.9%), but lower (P < 0.05) than for Predigested-WS (84.1%). The NE value for C-WS (2,793 kcal/kg) did not differ from that of C-DDGS (2,668 kcal/kg DM). The NE value for C-WS was greater (P < 0.05) than that for Heat-WS (1,834 kcal/kg DM) and lower than that for Predigested-WS (2,814 kcal/kg DM). In conclusion, enzymatic predigestion of WS increased its SID of Lys and NE value, and hence it can be an attractive technology to increase the nutritive value of corn DDGS for pigs. Heat pretreatment reduced SID of AA and NE values of the WS.

scholarly journals PSIII-1 Nutritive value of expeller-pressed carinata cake for pigs

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 171-172 ◽  
Author(s):  
Tofuko A Woyengo
Keyword(s):  
Nutritive Value ◽  
Direct Method ◽  
Latin Square ◽  
Growing Pigs ◽  
Net Energy ◽  
Oilseed Crop ◽  
Energy Value ◽  
Ileal Digestibility ◽  
Livestock Feeding ◽  
Net Energy Value

Abstract Carinata (Brasicca carinata) is an oilseed crop of brassica family that is grown for production of oil for biofuel industry. Expeller-pressed carinata cake (EPCAR), a co-product from carinata seed oil extraction plants, is available for livestock feeding. However, nutritive value of EPCAR for pigs has not been reported. Objective of this study was to determine standardized ileal digestibility (SID) of amino acids (AA) and net energy value of EPCAR for growing pigs. Eight ileal-cannulated barrows (initial BW = 33 kg) were fed 3 diets in a replicated 3 × 3 Latin square design with 2 added columns to give 8 replicates/diet. The diets were cornstarch-based, containing expeller-pressed canola cake (EPCAN) or EPCAR as sole protein source, and N-free. The EPCAN was included in the study for comparison because it is derived from canola, which is the most widely used crop of Brassica family for oil production. Digestibility of AA in feedstuffs was determined by the direct method. Energy digestibility in EPCAN and EPCAR was determined by difference from the N-free diet. On DM basis, EPCAN and EPCAR contained 39.6 and 50.2% CP, 20.7 and 26.8% NDF, 16.0 and 0.88% ether extract, 2.32 and 1.82% lysine, 0.74 and 0.96% methionine, 1.63 and 1.89% threonine, and 0.50 and 0.64% tryptophan, respectively. The EPCAN compared with EPCAR, had greater (PPP = 0.078) in SID of threonine. The EPCAN had greater (P < 0.05) net energy value than EPCAN (2,082 vs. 1,576 kcal/kg DM). In conclusion, EPCAR lower energy value than EPCAN. However, EPCAR had greater SID of most AA than EPCAN; therefore, EPCAR can serve as alternative oilseed co-product feedstuff for pigs.

scholarly journals Nutritive value of enzyme-supplemented carinata meal for growing pigs1

2019 ◽  
Vol 3 (4) ◽  
pp. 1359-1368
Author(s):  
Jinsu Hong ◽  
Jung Wook Lee ◽  
Dan Pettersson ◽  
Tofuko A Woyengo
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Latin Square ◽  
Basal Diet ◽  
Growing Pigs ◽  
Net Energy ◽  
Ileal Digestibility ◽  
Degrading Enzymes ◽  
Livestock Feeding ◽  
The Difference

Abstract Carinata meal is increasingly available for livestock feeding. However, the effects of supplemental phytase and fiber degrading enzymes on nutritive value of carinata meal for pigs have not been reported. Objective of the study was to evaluate the standardized ileal digestibility (SID) of amino acid (AA), and digestible energy (DE) and net energy (NE) values of phytase- and fiber-degrading enzymes-supplemented carinata meal for growing pigs. Ten ileal-cannulated pigs (initial body weight = 53.9 ± 4.76 kg) were fed 4 diets in a replicated 4 × 4 Latin square design with two additional columns to give 10 replicates per diet. Diets included a corn-soybean meal (SBM)-based basal diet, basal diet with 25% carinata meal, basal diet with 25% carinata meal plus phytase at 2,000 FTU/kg and multi-carbohydrase at 0.2 g/kg, and in addition a nitrogen-free diet. The multicarbohydrase supplied 4 units of xylanase, 10 units of β-glucanase, and 1,000 units of pectinase per kilogram of diet. The ratio of corn to SBM and soybean oil in carinata meal-containing diets was identical to that in the corn-SBM-based basal diet to allow calculation of AA and energy digestibility of carinata meal by the difference method. On a dry matter basis, carinata meal contained 50.2% crude protein, 0.88% ether extract, 15.37% acid detergent fiber, 1.82% Lys, 0.96% Met, 1.89% Thr, and 0.64% Trp, respectively. The SID of Lys, Met, Thr, and Trp for carinata meal were 51.4%, 82.2%, 65.9%, and 85.9%, respectively. The DE and NE values for carinata meal were 3,427 and 1,828 kcal/kg of dry matter, respectively. Supplementation of a combination of phytase and multicarbohydrase did not affect the apparent ileal digestibility of AA and SID of AA for the corn-SBM-carinata meal-based diet, and for the carinata meal. However, the combination of phytase and multicarbohydrase did improve (P &lt; 0.05) apparent total tract digestibility, and DE and NE values for carinata meal by 9.4%, 9.5%, and 12.4%, respectively. In conclusion, the enzymes used in the current study could be added in carinata meal-based diets for growing pigs to improve the energy value.

scholarly journals 154 Digestibility of amino acids, fiber, and energy, and concentrations of digestible and metabolizable energy in conventional and extruded yellow dent corn, wheat, and sorghum fed to growing pigs

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 85-86
Author(s):  
Diego A Rodriguez ◽  
Su A Lee ◽  
Mary B Muckey ◽  
Cassandra K Jones ◽  
Hans H Stein
Keyword(s):  
Amino Acids ◽  
Latin Square ◽  
Nutrient Digestibility ◽  
Growing Pigs ◽  
Metabolizable Energy ◽  
Distal Ileum ◽  
Ileal Digestibility ◽  
Dent Corn

Abstract Two experiments were conducted to determine the effects of extrusion on energy and nutrient digestibility in corn, wheat, and sorghum fed to growing pigs. In Exp. 1, 6 diets based on raw or extruded sources of each grain and an N-free diet were formulated. Seven barrows (14.2 ± 0.9 kg) had a T-cannula installed in the distal ileum and were allotted to a 7 × 7 Latin square. Ileal digesta were collected for 2 d after 5 d of adaptation. Results indicated that extruded grains had greater (P < 0.001) apparent ileal digestibility (AID) of starch than non-extruded grains. Extrusion increased standardized ileal digestibility (SID) of all AA except Pro in corn, but SID of AA in wheat and sorghum was not affected by extrusion (Table 1). In Exp. 2, 48 barrows (15.1 ± 3.7 kg) were allotted to 6 diets based on each of the 6 grains. Pigs were housed individually in metabolism crates and feces and urine were collected quantitatively for 5 d after 5 d of adaptation. The apparent total tract digestibility (ATTD) of GE increased by extrusion of corn or sorghum, but that was not the case for wheat (interaction, P < 0.001). The ATTD of NDF was reduced by extrusion of wheat, but not of corn or sorghum (interaction, P < 0.001). Extrusion reduced (P < 0.05) the ATTD of ADF in all grains. Values for ME were greater in extruded corn and sorghum compared with non-extruded grains, but ME in wheat was not affected by extrusion (interaction, P < 0.001). In conclusion, extrusion of corn, wheat, and sorghum increased AID of starch and SID of all indispensable AA. The ME in corn and sorghum was also increased.

scholarly journals 136 Nutritive value of phytase- and multi-carbohydrase-supplemented carinata meal for growing pigs

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 116-117
Author(s):  
Jinsu Hong ◽  
Jung Wook Lee ◽  
Dan Pettersson ◽  
Tofuko A Woyengo
Keyword(s):  
Soybean Meal ◽  
Nutritive Value ◽  
Latin Square ◽  
Basal Diet ◽  
Growing Pigs ◽  
Net Energy ◽  
Initial Body Weight ◽  
Ileal Digestibility ◽  
Gross Energy ◽  
The Difference

Abstract Objective of the study was to determine the effect of supplementing a combination of phytase and multi-carbohydrase on standardized ileal digestibility (SID) of amino acid (AA) and net energy (NE) value of carinata meal for growing pigs. Ten ileal-cannulated barrows (initial body weight = 53.9 ± 4.76 kg) were fed 4 diets in a replicated 4 × 4 Latin square design with 2 additional columns to give 10 replicates per diet. Diets included a corn-soybean meal (SBM)-based basal diet, the basal diet with 25% carinata meal, basal diet with 25% carinata meal plus phytase at 2,000 FTU/kg and multi-carbohydrase at 0.2g/kg, and a nitrogen-free diet. The multi-carbohydrase supplied 4 units of xylanase, 10 units of β-glucanase, and 1000 units of pectinase per kilogram of diet. The ratio of corn to soybean meal and soybean oil in carinata meal- containing diets was identical to that in the corn-soybean meal based basal diet to allow calculation of AA and energy digestibility of carinata meal by the difference method. On a DM basis, carinata meal contained 50.2% CP, 0.88% ether extract, 15.37% ADF, 1.82% Lys, 0.96% Met, 1.89% Thr, and 0.64% Trp, respectively. The SID of Lys, Met, Thr, and Trp for carinata meal were 51.4%, 82.2%, 65.9%, and 85.9%, respectively. Supplementation of a combination of phytase and multi-carbohydrase did not affect the SID of AA for the corn-SBM-carinata meal-based diet, and for the carinata meal. However, supplementation of a combination of phytase and multi-carbohydrase improved (P = 0.015) the apparent total tract digestibility of gross energy, and DE and NE values for carinata meal by 9.4, 9.5, and 12.4% respectively. In conclusion, the enzymes used in the current study could be added in carinata meal-based diets for pigs to improve the energy value of the carinata meal.

scholarly journals PSVII-29 Validation of prediction equations for digestibility of energy and amino acids in commercial pigs using mini pigs

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 358-359
Author(s):  
Bokyung Hong ◽  
John K Htoo ◽  
Caroline Gonzalez-Vega ◽  
Beob G Kim
Keyword(s):  
Amino Acids ◽  
Latin Square ◽  
Basal Diet ◽  
Rapeseed Meal ◽  
Nutrient Digestibility ◽  
Prediction Equations ◽  
Ileal Digestibility ◽  
Gross Energy ◽  
Predicted Values ◽  
Mini Pigs

Abstract The objective was to validate the prediction equations for digestibility of gross energy and amino acids in commercial pigs using mini pigs. Five commercial crossbred barrows (Landrace × Yorkshire) with initial BW of 62.6 ± 6.1 kg and 5 mini pigs selected from Jeju Island native pigs (M-Pig; Cronex Co., Ltd., Hwaseong, Republic of Korea) with initial BW of 53.4 ± 7.4 kg were used. All pigs were fitted with a T-cannula at the distal ileum, and 5 animals of each breed were randomly allotted to a 5 × 10 Latin square design with 5 diets and 10 periods, respectively. A basal diet contained 98% corn and 4 experimental diets contained 20 or 40% rapeseed meal or wheat distillers dried grains with solubles at the expense of corn. Chromic oxide was included at 0.5% as an indigestible index. The accuracy of previously developed prediction equations for nutrient digestibility of commercial pigs was assessed by regressing measured values from commercial pigs minus predicted values from mini pigs on the predicted values centered to the mean. Comparison of measured and predicted apparent total tract digestibility of gross energy showed that the intercept (0.02 ± 0.81; P = 0.985) indicating mean bias and the slope (0.08 ± 0.15; P = 0.599) indicating linear bias were not different from 0. The equation for standardized ileal digestibility of lysine and arginine did not have mean bias or linear bias (P &gt; 0.05). However, the equations for standardized ileal digestibility of other amino acids had mean bias or linear bias (P &lt; 0.05). In conclusion, energy digestibility of commercial pigs may be predicted by previously developed prediction equations for commercial pigs using mini pigs.

PSIV-B-28 Effect of feeding acidified or fermented barley grain using Limosilactobacillus reuteri with or without supplemental phytase on diet nutrient digestibility in growing pigs

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 391-392
Author(s):  
Charlotte M E Heyer ◽  
Li F Wang ◽  
Eduardo Beltranena ◽  
Michael G Gänzle ◽  
Ruurd T T Zijlstra
Keyword(s):  
Control Diet ◽  
Latin Square ◽  
Barley Grain ◽  
Nutrient Digestibility ◽  
Growing Pigs ◽  
Net Energy ◽  
Inorganic P ◽  
Ileal Digestibility ◽  
Gross Energy ◽  
Effect Of Feeding

Abstract Fermentation of cereal grains may degrade myo-inositol hexakisphosphate (InsP6) thereby increasing nutrient digestibility. Effects of chemical acidification or fermentation with Limosilactobacillus (Lm.) reuteri TMW 1.656 with or without phytase on nutrient digestibility of diets composed of high β-glucan hull-less barley grain were assessed in growing pigs. Four mash diets contained 50% barley grain: 1) unfermented barley (Control); 2) chemically-acidified barley (ACD) with lactic and acidic acid [0.02 L/kg barley grain, 4:1 (v/v)]; 3) barley fermented with Lm. reuteri (Fermented without phytase); and 4) barley fermented with Lm. reuteri and phytase (Fermented with phytase; 500 FYT/kg barley grain). The 4 diets were fed to 8 ileal-cannulated barrows (initial BW, 17.4 kg) for four 11-d periods in a double 4 × 4 Latin square. The InsP6 content of barley grain in Control, ACD, Fermented without phytase, or Fermented with phytase was 1.12, 0.59, 0.52% dry matter, or not detectable, respectively. Diet apparent total tract digestibility (ATTD) of crude protein (CP), Ca, gross energy and digestible energy and predicted net energy values were greater (P &lt; 0.05) for ACD and Fermented without phytase than Control. Diet apparent ileal digestibility (AID) of Ca and standardized total tract digestibility (STTD) of P tended to be greater (P &lt; 0.10) for Fermented without phytase than Control. Diet STTD of P, AID and ATTD of Ca was greater (P &lt; 0.05) for Fermented with phytase than Fermented without phytase. Acidification or fermentation with/without phytase did not affect diet standardized ileal digestibility of CP and AA. In conclusion, fermentation with phytase completely degraded InsP6 in barley grain and maximized P and Ca digestibility, thereby reducing the need to provide inorganic P to meet P requirements of growing pigs.

Effect of feeding acidified or fermented barley using Limosilactobacillus reuteri with or without supplemental phytase on diet nutrient digestibility in growing pigs

2021 ◽  
Author(s):  
C M E Heyer ◽  
L F Wang ◽  
E Beltranena ◽  
M G Gänzle ◽  
R T Zijlstra
Keyword(s):  
Urinary Excretion ◽  
Control Diet ◽  
Latin Square ◽  
Barley Grain ◽  
Nutrient Digestibility ◽  
Growing Pigs ◽  
Dihydrogen Phosphate ◽  
Net Energy ◽  
Ileal Digestibility ◽  
Effect Of Feeding

Abstract Fermentation of cereal grains may degrade myo-inositol 1,2,3,4,5,6-hexakis (dihydrogen phosphate) (InsP6) thereby increasing nutrient digestibility. Effects of chemical acidification or fermentation with Limosilactobacillus (L.) reuteri with or without phytase of high β-glucan hull-less barley grain on apparent ileal digestibility (AID) and apparent total tract digestibility (ATTD) of nutrients and GE, standardized ileal digestibility (SID) of crude protein (CP) and amino acids (AA), and standardized total tract digestibility (STTD) of P were assessed in growing pigs. Pigs were fed 4 mash barley-based diets balanced for water content: 1) unfermented barley (Control); 2) chemically-acidified barley (ACD) with lactic acid and acidic acid (0.019 L/kg barley grain at a ratio of 4:1 (v/v); 3) barley fermented with L. reuteri TMW 1.656 (Fermented without phytase); and 4) barley fermented with L. reuteri TMW 1.656 and phytase (Fermented with phytase; 500 FYT/kg barley grain). The acidification and fermentation treatments occurred for 24 h at 37°C in a water bath. The 4 diets were fed to 8 ileal-cannulated barrows (initial BW, 17.4 kg) for four 11-d periods in a double 4 × 4 Latin square. Barley grain InsP6 content of Control, ACD, Fermented without phytase, or Fermented with phytase was 1.12, 0.59, 0.52% dry matter (DM), or not detectable, respectively. Diet ATTD of DM, CP, Ca, and GE, DE, predicted net energy (NE) value, and urinary excretion of P were greater (P &lt; 0.05) for ACD than Control. Diet ATTD of DM, CP, Ca, GE, DE and predicted NE value, urinary excretion of P was greater (P &lt; 0.05), and diet AID of Ca and ATTD and STTD of P tended to be greater (P &lt; 0.10) for Fermented without phytase than Control. Diet ATTD of GE was lower (P &lt; 0.05) and diet ATTD and STTD of P, AID and ATTD of Ca was greater (P &lt; 0.05) for Fermented with phytase than Fermented without phytase. Acidification or fermentation with/without phytase did not affect diet SID of CP and AA. In conclusion, ACD or Fermented without phytase partially degraded InsP6 in barley grain and increased diet ATTD of DM, CP, and GE, but not SID of CP and most AA in growing pigs. Fermentation with phytase entirely degraded InsP6 in barley grain and maximized P and Ca digestibility, thereby reducing the need to provide inorganic dietary P to meet P requirements of growing 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 &lt; 0.05) or tended (P &lt; 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 &lt; 0.05) than in corn. Concentrations of DE and ME in soybean expellers were greater (P &lt; 0.05) compared with corn or SBM. Soybean expellers had greater (P &lt; 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 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.

scholarly journals 172 Increasing inclusion of fermentable fiber decreases nutrient digestibility in grower pigs

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 85-85
Author(s):  
Charlotte Heyer ◽  
L F Wang ◽  
R T Zijlstra
Keyword(s):  
Plasma Protein ◽  
Corn Starch ◽  
Latin Square ◽  
Basal Diet ◽  
Nutrient Digestibility ◽  
Ileal Digestibility ◽  
Low Viscosity ◽  
Acacia Gum ◽  
Bovine Plasma ◽  
Total P

Abstract Fermentable fiber may increase endogenous losses of P and AA, thereby reducing apparent nutrient digestibility. Acacia gum fiber with medium-to-high fermentability and low viscosity was used to investigate its effect on apparent ileal digestibility (AID) and apparent total tract digestibility (ATTD) of nutrients, and standardized total tract digestibility (STTD) of P in grower pigs. A P-free basal diet (49% corn starch; 18% bovine plasma protein) was formulated to measure basal endogenous P losses (EPL). Three diets were formulated to include 2.5, 5.0, or 7.5% acacia gum fiber at the expense of corn starch in the P-free basal diet. Diets contained 16.1–17.4% CP and 0.31–0.33% total P (DM-basis). The 4 diets were fed to 8 ileal-cannulated barrows (initial BW, 54.6 kg) for four 9-d periods in a double 4 × 4 Latin square. Apparent hindgut fermentation (AHF) was ATTD minus AID. Increasing inclusion of acacia gum quadratically decreased (P &lt; 0.01) AID of DM (∆ 11.1%), linearly decreased (P &lt; 0.05) ATTD of DM (∆ 1.7%) CP (∆ 1.2%), and quadratically increased (P &lt; 0.05) AHF of DM (∆ 9.4%). Basal EPL were 391 and 377 mg/kg DM intake (DMI) for ileum and total tract, respectively. Increasing inclusion of fiber linearly increased (P &lt; 0.05) ileal EPL (∆ 184 mg/kg DMI), and tended to linearly increase (P &lt; 0.10) EPL for total tract (∆ 243 mg/kg DMI). Dietary inclusion of acacia gum tended to linearly decrease (P &lt; 0.10) AID of P, but did not affect (P &gt; 0.10) ATTD, or STTD of P. In conclusion, increasing inclusion of fermentable, low viscous acacia gum fiber decreased diet digestibility of DM and ATTD of CP, but did not affect total tract P digestibility, indicating that increasing fermentable fiber did not increase specific endogenous losses of P in the total tract.

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