Corn extrusion and enzyme addition improves digestibility of corn/soy based diets by pigs: In vitro and in vivo studies

Li, Yong; Fang, Zhengfeng; Dai, J. J.; Partridge, G. G.; Ru, Y. J.; Peng, Jian

doi:10.1016/j.anifeedsci.2010.03.017

Cited by 38 publications

(24 citation statements)

References 27 publications

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“…The positive effects of exogenous enzymes are quite variable and seem to depend on physiological status of the pigs and the content of NSP (Ji et al, 2008;Li et al, 2010;Adeola and Cowieson, 2011). Therefore, exogenous enzymes should be selected on the basis of type and amount of the NSP in the pig diets.…”

Section: Discussionmentioning

confidence: 99%

“…The beneficial effects of the exogenous enzymes depend upon the type of the substrate, physiological status of pigs and the amount of the NSP content in the diet (Ji et al, 2008;Li et al, 2010;Adeola and Cowieson, 2011). Therefore, identification of type and amount of NSP content in pig diets is essential for selection on the exogenous enzyme and dose of dietary supplementation.…”

Section: Introductionmentioning

confidence: 99%

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Effects of mannan level and β-mannanase supplementation on growth performance, apparent total tract digestibility and blood metabolites of growing pigs

Kim

Ingale

Hosseindoust

et al. 2017

Animal

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The exogenous enzymes are less consistent in their effects as their beneficial effects depend upon the types and level non-starch polysaccharides (NSP) present in the diets. Therefore, exogenous enzymes should be selected on the basis of types and amount of the NSP in the pig diets. The objectives of the present experiments were to investigate the effects of dietary level of mannan and β-mannanase supplementation on growth performance, apparent total tract digestibility (ATTD) of energy and nutrients, and blood metabolites of growing pigs. In Exp. 1, 96 barrows were randomly allotted to four treatments on the basis of BW. There were four replicates in each treatment with six pigs per replicate. The dietary treatments were a corn-soybean meal (SBM)-based control diet and three other diets consisted of the control diet supplemented with 400, 800 or 1600 U of β-mannanase/kg diet. The final BW, average daily gain (ADG) and blood glucose increased (linear, P < 0.05) with increasing concentrations of dietary β-mannanase. The ATTD of dry matter (DM), gross energy (GE) and β-mannan was higher (linear, P < 0.05) with increase in dietary β-mannanase concentrations. In Exp. 2, 288 barrows were allotted to six treatments in a 2 × 3 factorial arrangement of mannan level (high v. low) and addition of β-mannanase (0, 400 or 800 U/kg diet). There were four replicates in each treatment with 12 pigs/replicate. Pigs were fed corn-SBM-based low-mannan diet (6.1 g/kg) or high-mannan (25.2 g/kg) diet in which corn and SBM were partially replaced with 50 g/kg diet palm kernel meal. All diets were fed in meal form for 42 days. Pigs fed diets supplemented with β-mannanase had greater ( P < 0.05) final BW, ADG, feed to gain (F : G), the ATTD of DM, GE, and β-mannan and blood glucose concentration compared with pigs fed diets without β-mannanase. In addition, the final BW, ADG, F : G and the ATTD of GE and β-mannan were reduced ( P < 0.05) in low mannan level. The dietary level of mannan and the β-mannanase supplementation had no effects ( P > 0.05) on the concentrations of blood total cholesterol, triacylglycerides and blood urea nitrogen. These results indicate that supplementation of β-mannanase to low-or high-mannan diets have potential to improve the performance of growing pigs. In addition, palm kernel meal may partially replace corn and SBM without reducing pig performance if β-mannanase is added to diet.Keywords: blood metabolites, growing pigs, performance, mannan, β-mannanase ImplicationsThe β-mannan accounts for 15% to 35 % (soy-based to palm-based) of total non-starch polysaccharides content of the pig diets, β-galactomannan, is a polysaccharide with repeating units of mannose, with galactose or glucose, or both, often found attached to the β-mannan. Pig digestive tract lacks the enzymes targeting β-1, 4-mannosyl bond and α-1, 6-galactosyl bonds, which limits the nutrient utilization and growth performance. These results indicate that β-mannanase have potential to improve the performance of growing pigs, and palm kernel meal m...

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of mannan level and β-mannanase supplementation on growth performance, apparent total tract digestibility and blood metabolites of growing pigs

Kim

Ingale

Hosseindoust

et al. 2017

Animal

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“…Extrusion has been used in industry for almost a century and is the main method of processing commercial aquaculture diets (Hardy and Barrows ; Cheng and Hardy ). Extrusion is particularly beneficial for plant ingredients; it causes starch gelatinization, inactivates antinutritional factors and cell disruptors, and makes nutrients more accessible to digestive enzymes (Al‐Marzooqi and Wiseman ; Li et al ). Thus, extrusion increases the ADCDM, ADCGE, and ADCCP of plant‐based ingredients (Hardy and Barrows ; Venou et al ), resulting in improved growth (Furuya et al ).…”

Section: Discussionmentioning

confidence: 99%

Apparent Protein and Energy Digestibility and Amino Acid Availability of Corn and Co‐products in Extruded Diets for Nile Tilapia, Oreochromis niloticus

Vidal

Xavier

Michelato

et al. 2015

J World Aquaculture Soc

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We assessed the nutritional value of corn in extruded diets for Nile tilapia, Oreochromis niloticus, by determining the apparent digestibility coefficients of dry matter, crude protein, and gross energy, and by measuring the apparent availability coefficients (AACs) of essential and non‐essential amino acids (AAs) in several corn‐based diets. We fed 180 juvenile Nile tilapia a reference diet containing 325.8 g/kg crude protein and 4613 kcal/kg gross energy or a test diet containing a 70:30 mixture of the reference diet and a test ingredient (whole corn, corn germ, corn germ meal, corn gluten feed, or corn gluten meal). The apparent digestibility coefficients ranged from 56.3 to 96.6% (dry matter), 89.4 to 96.8% (crude protein), and 59.0 to 95.4% (gross energy). The AACs of all AAs exceeded 80% for all diets and were >90% for corn gluten meal. All ingredients showed high levels of apparent digestibility for crude protein and high AACs of AAs. Diets based on whole corn or corn gluten meal showed higher digestibility values for dry matter and gross energy, suggesting that they are preferable choices for Nile tilapia.

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“…Enzymes are added to animal feed in order to increase digestibility (Li et al, 2010), to remove antinutritional factors, and to improve nutrient availability, as well as for environmental reasons, and can be an improvement to intestinal health in relation to bacterial contamination (Peek, 2009). A large variety of carbohydrases, proteases, phytases and lipases are used for these purposes.…”

Section: Introductionmentioning

confidence: 99%

Nutritional reduction of protein and usage of enzyme in the diet of light layers

et al. 2012

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-The objective of this study was to evaluate the reduction of protein, the formulation of diets and supplementation of an enzyme complex for laying hens. The layers were distributed in a completely randomized 2 × 2 × 2 factorial arrangement, with two levels of crude protein reduction (0.0 and 4.0 g/kg), two kinds of diet formulation (without and with reformulation, considering 75 kcal of metabolizable energy) and two enzyme supplementations (without and with enzyme complex supplementation), totalizing 8 treatments of 8 layers each, with 7 replications, in a total of 448 laying hens at 30 weeks of age. After data analysis, it was found that the enzyme complex supplementation in the diet of layers improves performance, promotes a similar egg quality and improves the bone and intestinal health of the layers.

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Corn extrusion and enzyme addition improves digestibility of corn/soy based diets by pigs: In vitro and in vivo studies

Cited by 38 publications

References 27 publications

Effects of mannan level and β-mannanase supplementation on growth performance, apparent total tract digestibility and blood metabolites of growing pigs

Effects of mannan level and β-mannanase supplementation on growth performance, apparent total tract digestibility and blood metabolites of growing pigs

Apparent Protein and Energy Digestibility and Amino Acid Availability of Corn and Co‐products in Extruded Diets for Nile Tilapia, Oreochromis niloticus

Nutritional reduction of protein and usage of enzyme in the diet of light layers

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