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Nutrition & Metabolism

Effect of particle size of insoluble fibre on growth performance, apparent ileal digestibility and caecal microbial population in broiler chickens fed barley-containing diets

, , ORCID Icon &
Pages 734-745 | Received 29 Jan 2020, Accepted 20 Jun 2020, Published online: 12 Aug 2020

References

  • Akiba, Y., and T. Matsumoto. 1982. “Effects of Dietary Fibres on Lipid Metabolism in Liver and Adipose Tissue in Chicks.” Journal of Nutrition 112 (8): 1577–1585. doi:10.1093/jn/112.8.1577.
  • Amerah, A. M., V. Ravindran, and R. G. Lentle. 2009. “Influence of Insoluble Fibre and Whole Wheat Inclusion on the Performance, Digestive Tract Development and Ileal Microbiota Profile of Broiler Chickens.” British Poultry Science 50 (3): 366–375. doi:10.1080/00071660902865901.
  • American Society of Agricultural Engineers. 2003. “Method of Determining and Expressing Fineness of Feed Materials by Sieving.” In Agricultural Engineers Yearbook, 589. St. Joseph, MI: American Society of Agricultural Engineers.
  • AOAC. 2000. Official Methods of Analysis. 17th ed. Washington DC: Association of Official Analytical Chemist.
  • Baker, S., and T. Herrman. 2002. Evaluating Particle Size. MF-2051 Feed Manufacturing. Manhattan, KS, US: Kansas State University.
  • Bogusławska-Tryk, M., R. Szymeczko, A. Piotrowska, K. Burlikowska, and K. Śliżewska. 2015. “Ileal and Cecal Microbial Population and Short-chain Fatty Acid Profile in Broiler Chickens Fed Diets Supplemented with Lignocellulose.” Pakistan Veterinary Journal 35: 212–216.
  • Choct, M. 1997. “Feed Non-starch Polysaccharides: Chemical Structures and Nutritional Significance.” Feed Milling International 191: 13–26.
  • Cook, K. L., M. J. Rothrock Jr, M. A. Eiteman, N. Lovanh, and K. Sistani. 2011. “Evaluation of Nitrogen Retention and Microbial Populations in Poultry Litter Treated with Chemical, Biological or Adsorbent Amendments.” Journal of Environmental Management 92 (7): 1760–1766. doi:10.1016/j.jenvman.2011.02.005.
  • Debon, S. J., and R. F. Tester. 2001. “In Vitro Binding of Calcium, Iron and Zinc by Non-starch Polysaccharides.” Food Chemistry 73 (4): 401–410. doi:10.1016/S0308-8146(00)00312-5.
  • Denbow, D. M. 2000. “Gastrointestinal Anatomy and Physiology.” In Sturkie’s Avian Physiology. 5th ed., edited by G. Whittow, 299–325. San Diego, CA: Academic Press.
  • Duke, G. 1986. “Alimentary Canal: Secretion and Digestion, Special Digestive Functions, and Absorption.” In Avian Physiology, edited by P. D. Sturkie, 289–302. New York, NY: Springer.
  • Engberg, R. M., M. S. Hedemann, and B. B. Jensen. 2002. “The Influence of Grinding and Pelleting of Feed on the Microbial Composition and Activity in the Digestive Tract of Broiler Chickens.” British Poultry Science 43 (4): 569–579. doi:10.1080/0007166022000004480.
  • Ferket, P. R. 2000. “Feeding Whole Grains to Poultry Improves Gut Health.” Feedstuffs 4: 12–14.
  • Fuente, J. M., P. Pérez, and M. J. Villamide. 1995. “Effect of Dietary Enzyme on the Metabolizable Energy of Diets with Increasing Levels of Barley Fed to Broilers at Different Ages.” Animal Feed Science and Technology 56 (1–2): 45–53. doi:10.1016/0377-8401(95)00815-5.
  • Gabriel, I., S. Mallet, and M. Leconte. 2003. “Differences in the Digestive Tract Characteristics of Broiler Chickens Fed on Complete Pelleted Diet or on Whole Wheat Added to Pelleted Protein Concentrate.” British Poultry Science 44 (2): 283–290. doi:10.1080/0007166031000096470.
  • García, M., R. Lázaro, M. A. Latorre, M. I. Gracia, and G. G. Mateos. 2008. “Influence of Enzyme Supplementation and Heat Processing of Barley on Digestive Traits and Productive Performance of Broilers.” Poultry Science 87 (5): 940–948. doi:10.3382/ps.2007-00266.
  • González-Alvarado, J. M., E. Jiménez-Moreno, D. González-Sánchez, R. Lázaro, and G. G. Mateos. 2010. “Effect of Inclusion of Oat Hulls and Sugar Beet Pulp in the Diet on Productive Performance and Digestive Traits of Broilers from 1 to 42 Days of Age.” Animal Feed Science and Technology 162 (1–2): 37–46. doi:10.1016/j.anifeedsci.2010.08.010.
  • González-Alvarado, J. M., E. Jiménez-Moreno, D. G. Valencia, R. Lázaro, and G. G. Mateos. 2008. “Effects of Fibre Source and Heat Processing of the Cereal on the Development and pH of the Gastrointestinal Tract of Broilers Fed Diets Based on Corn or Rice.” Poultry Science 87 (9): 1779–1795. doi:10.3382/ps.2008-00070.
  • González-Alvarado, J. M., E. Jiménez-Moreno, R. Lázaro, and G. G. Mateos. 2007. “Effect of Type of Cereal, Heat Processing of the Cereal, and Inclusion of Fibre in the Diet on Productive Performance and Digestive Traits of Broilers.” Poultry Science 86 (8): 1705–1715. doi:10.1093/ps/86.8.1705.
  • Hafeez, A., K. Männer, C. Schieder, and J. Zentek. 2015. “Effect of Supplementation of Phytogenic Feed Additives (Powdered Vs. Encapsulated) on Performance and Nutrient Digestibility in Broiler Chickens.” Poultry Science 95 (3): 622–629. doi:10.3382/ps/pev368.
  • Hetland, H., and B. Svihus. 2001. “Effect of Oat Hulls on Performance, Gut Capacity and Feed Passage Time in Broiler Chickens.” British Poultry Science 42 (3): 354–361. doi:10.1080/00071660120055331.
  • Hetland, H., B. Svihus, and A. Krogdahl. 2003. “Effects of Oat Hulls and Wood Shavings on Digestion in Broilers and Layers Fed Diets Based on Whole or Ground Wheat.” British Poultry Science 44 (2): 275–282. doi:10.1080/0007166031000124595.
  • Hetland, H., B. Svihus, and M. Choct. 2005. “Role of Insoluble Fibre on Gizzard Activity in Layers.” Journal of Applied Poultry Research 14 (1): 38–46. doi:10.1093/japr/14.1.38.
  • Hetland, H., B. Svihus, and V. Olaisen. 2002. “Effect of Feeding Whole Cereals on Performance, Starch Digestibility and Duodenal Particle Size Distribution in Broiler Chickens.” British Poultry Science 43 (3): 416–423. doi:10.1080/00071660120103693.
  • Hetland, H., M. Choct, and B. Svihus. 2004. “Role of Insoluble Non-starch Polysaccharides in Poultry Nutrition.” World’s Poultry Science Journal 60 (4): 415–422. doi:10.1079/WPS200325.
  • Hollenbeck, C. B., A. M. Coulston, and G. M. Reaven. 1986. “To What Extent Does Increased Dietary Fibre Improve Glucose and Lipid Metabolism in Patients with Noninsulin-dependent Diabetes Mellitus (NIDDM)?” American Journal of Clinical Nutrition 43 (1): 16–24. doi:10.1093/ajcn/43.1.16.
  • Jacobs, C. M., P. L. Utterback, and C. M. Parsons. 2010. “Effects of Corn Particle Size on Growth Performance and Nutrient Utilization in Young Chicks.” Poultry Science 89 (3): 539–544. doi:10.3382/ps.2009-00434.
  • Jamroz, D., J. Orda, C. Kamel, A. Wiliczkiewicz, T. Wertelecki, and J. Skorupinska. 2003. “The Influence of Phytogenic Extracts on Performance, Nutrient Digestibility, Carcass Characteristics, and Gut Microbial Status in Broiler Chickens.” Journal of Animal and Feed Sciences 12 (3): 583–596. doi:10.22358/jafs/67752/2003.
  • Janssen, W. M. M. A., ed. 1989. European Table of Energy Values for Poultry Feedstuffs. 3rd ed. Beekbergen, Netherlands: Spelderholt Center for Poultry Research and Information Services.
  • Jiménez Moreno, E., C. Romero, J. Berrocoso, M. Frikha, and G. Gonzalez Mateos. 2011b. “Effects of the Inclusion of Oat Hulls or Sugar Beet Pulp in the Diet on Gizzard Characteristics, Apparent Ileal Digestibility of Nutrients, and Microbial Count in the Ceca in 36 Day Old Broilers Reared on Floor.” Poultry Science 90 (Suppl. 1): 153. (Abstract).
  • Jiménez-Moreno, E., A. de Coca-sinova, J. M. González-Alvarado, and G. G. Mateos. 2016. “Inclusion of Insoluble Fibre Sources in Mash or Pellet Diets for Young Broilers. 1. Effects on Growth Performance and Water Intake.” Poultry Science 95 (1): 41–52. doi:10.3382/ps/pev309.
  • Jimenez-Moreno, E., J. M. Gonzalez-Al Varado, A. de Coca-sinova, M. Perez-Serrano, and G. G. Mateos. 2008. “Influence of Feed Form and Fibre Inclusion in the Diet on Water and Feed Intake of Chickens.” Poultry Science 80 (Supp.1): 92–93.
  • Jiménez-Moreno, E., J. M. González-Alvarado, A. de Coca-sinova, R. Lázaro, and G. G. Mateos. 2009. “Effects of Source of Fibre on the Development and pH of the Gastrointestinal Tract of Broilers.” Animal Feed Science and Technology 154 (1–2): 93–101. doi:10.1016/j.anifeedsci.2009.06.020.
  • Jiménez-Moreno, E., J. M. González-Alvarado, D. González-Sánchez, R. Lázaro, and G. G. Mateos. 2010. “Effects of Type and Particle Size of Dietary Fibre on Growth Performance and Digestive Traits of Broilers from 1 to 21 Days of Age.” Poultry Science 89 (10): 2197–2212. doi:10.3382/ps.2010-00771.
  • Jiménez-Moreno, E., M. Frikha, A. de Coca-sinova, J. García, and G. G. Mateos. 2013. “Oat Hulls and Sugar Beet Pulp in Diets for Broilers 1. Effects on Growth Performance and Nutrient Digestibility.” Animal Feed Science and Technology 182 (1–4): 33–43. doi:10.1016/j.anifeedsci.2013.03.011.
  • Jiménez-Moreno, E., S. Chamorro, M. Frikha, H. M. Safaa, R. Lázaro, and G. G. Mateos. 2011a. “Effects of Increasing Levels of Pea Hulls in the Diet on Productive Performance, Development of the Gastrointestinal Tract, and Nutrient Retention of Broilers from One to Eighteen Days of Age.” Animal Feed Science and Technology 168 (1–2): 100–112. doi:10.1016/j.anifeedsci.2011.03.013.
  • Kalmendal, R., K. Elwinger, L. Holm, and R. Tauson. 2011. “High-fibre Sunflower Cake Affects Small Intestinal Digestion and Health in Broiler Chickens.” British Poultry Science 52 (1): 86–96. doi:10.1080/00071668.2010.547843.
  • Kheravii, S., R. Swick, M. Choct, and S.-B. Wu. 2017b. “Coarse Particle Inclusion and Lignocellulose-rich Fibre Addition in Feed Benefit Performance and Health of Broiler Chickens.” Poultry Science 96 (9): 3272–3281. doi:10.3382/ps/pex123.
  • Kheravii, S. K., R. A. Swick, M. Choct, and S. B. Wu. 2017a. “Dietary Sugarcane Bagasse and Coarse Particle Size of Corn are Beneficial to Performance and Gizzard Development in Broilers Fed Normal and High Sodium Diets.” Poultry Science 96 (11): 4006–4016. doi:10.3382/ps/pex225.
  • Kimiaeitalab, M. V., L. Cámara, S. Mirzaie Goudarzi, E. Jiménez-Moreno, and G. G. Mateos. 2016. “Effects of the Inclusion of Sunflower Hulls in the Diet on Growth Performance and Digestive Tract Traits of Broilers and Pullets Fed A Broiler Diet from Zero to 21 D of Age. A Comparative Study.” Poultry Science 96 (3): 581–592. doi:10.3382/ps/pew263.
  • Knudsen, K. E. B. 2014. “Fibre and Nonstarch Polysaccharide Content and Variation in Common Crops Used in Broiler Diets.” Poultry Science 93 (9): 2380–2393. doi:10.3382/ps.2014-03902.
  • Kristensen, H. H., and C. M. Wathes. 2000. “Ammonia and Poultry Welfare: A Review.” World’s Poultry Science Journal 56 (3): 235–245. doi:10.1079/WPS20000018.
  • Kritchevsky, D., and J. A. Story. 1974. “Binding of Bile Salts in Vitro by Nonnutritive Fibre.” Journal of Nutrition 104 (4): 458–462. doi:10.1093/jn/104.4.458.
  • LÁzaro, R., M. A. Latorre, P. Medel, M. Gracia, and G. G. Mateos. 2004. “Feeding Regimen and Enzyme Supplementation to Rye-based Diets for Broilers.” Poultry Science 83 (2): 152–160. doi:10.1093/ps/83.2.152.
  • Lafont, H., D. Lairon, J. L. Vigne, F. Chanussot, C. Chabert, H. Portugal, A. M. Pauli, C. Crotte, and J. C. Hauton. 1985. “Effect of Wheat Bran, Pectin and Cellulose on the Secretion of Bile Lipids in Rats.” Journal of Nutrition 115 (7): 849–855. doi:10.1093/jn/115.7.849.
  • Manhire, A., C. L. Henry, M. Hartog, and K. W. Heaton. 1981. “Unrefined Carbohydrate and Dietary Fibre in Treatment of Diabetes Mellitus.” Journal of Human Nutrition and Dietetics 35: 99–101.
  • Masouri, L., S. Salari, M. Sari, S. Tabatabaei, and B. Masouri. 2017. “Effect of Feed Supplementation with Satureja Khuzistanica Essential Oil on Performance and Physiological Parameters of Broilers Fed on Wheat- or Maize-based Diets.” British Poultry Science 58: 425–434. doi:10.1080/00071668.2017.1327701.
  • Mateos, G. G., E. Jiménez-Moreno, M. P. Serrano, and R. P. Lázaro. 2012. “Poultry Response to High Levels of Dietary Fibre Sources Varying in Physical and Chemical Characteristics.” Journal of Applied Poultry Research 21 (1): 156–174. doi:10.3382/japr.2011-00477.
  • Miles, D. M., D. E. Rowe, and T. C. Cathcart. 2011. “High Litter Moisture Content Suppresses Litter Ammonia Volatilization.” Poultry Science 90 (7): 1397–1405. doi:10.3382/ps.2010-01114.
  • Mourao, J. L., V. M. Pinheiro, J. A. M. Prates, R. J. B. Bessa, L. M. A. Ferreira, C. M. G. A. Fontes, and P. I. P. Ponte. 2008. “Effect of Dietary Dehydrated Pasture and Citrus Pulp on the Performance and Meat Quality of Broiler Chickens.” Poultry Science 87 (4): 733–743. doi:10.3382/ps.2007-00411.
  • Naderinejad, S., F. Zaefarian, M. R. Abdollahi, A. Hassanabadi, H. Kermanshahi, and V. Ravindran. 2016. “Influence of Feed Form and Particle Size on Performance, Nutrient Utilisation, and Gastrointestinal Tract Development and Morphometry in Broiler Starters Fed Maize-based Diets.” Animal Feed Science and Technology 215: 92–104. doi:10.1016/j.anifeedsci.2016.02.012.
  • Nahm, K. H. 2003. “Evaluation of the Nitrogen Content in Poultry Manure.” World’s Poultry Science Journal 59 (1): 77–88. doi:10.1079/WPS20030004.
  • Nir, I., G. Shefet, and Y. Aaroni. 1994. “Effect of Particle Size on Performance: 1. Corn.” Poultry Science 73 (1): 45–49. doi:10.3382/ps.0730045.
  • NRC. 1994. Nutrient Requirements of Poultry. 9th revised ed. Washington DC, USA: National Research Council. National Academy Press.
  • Ponter, A. 2004. Tables of Composition and Nutritional Value of Feed Materials. Edited by D. Sauvant, J. M. Perez, and G. Tran, 98. Wageningen, The Netherlands: Wageningen Academic Publishers.
  • Ravindran, V., Z. V. Tilman, P. C. H. Morel, G. Ravindran, and G. D. Coles. 2007. “Influence of β-glucanase Supplementation on the Metabolisable Energy and Ileal Nutrient Digestibility of Normal Starch and Waxy Barleys for Broiler Chickens.” Animal Feed Science and Technology 134 (1–2): 45–55. doi:10.1016/j.anifeedsci.2006.04.012.
  • Rezaei, M., M. A. Karimi Torshizi, and Y. Rouzbehan. 2011. “The Influence of Different Levels of Micronized Insoluble Fibre on Broiler Performance and Litter Moisture.” Poultry Science 90 (9): 2008–2012. doi:10.3382/ps.2011-01352.
  • Rhodes, J. M. 1989. “Colonic Mucus and Mucosal Glycoproteins: The Key to Colitis and Cancer?” Gut 30 (12): 1660–1666. doi:10.1136/gut.30.12.1660.
  • Rogel, A. M., E. F. Annison, W. L. Bryden, and D. Balnave. 1987. “The Digestion of Wheat Starch in Broiler Chickens.” Australian Journal of Agricultural Research 38 (3): 639–649. doi:10.1071/AR9870639.
  • RougiÈere, N., J. Gomez, S. Mignon-Grasteau, and B. Carré. 2009. “Effects of Diet Particle Size on Digestive Parameters in D+ and D− Genetic Chicken Lines Selected for Divergent Digestion Efficiency.” Poultry Science 88 (6): 1206–1215. doi:10.3382/ps.2008-00408.
  • Sacranie, A., B. Svihus, V. Denstadli, B. Moen, P. A. Iji, and M. Choct. 2012. “The Effect of Insoluble Fibre and Intermittent Feeding on Gizzard Development, Gut Motility, and Performance of Broiler Chickens.” Poultry Science 91 (3): 693–700. doi:10.3382/ps.2011-01790.
  • Sadeghi, A., M. Toghyani, and A. Gheisari. 2015. “Effect of Various Fibre Types and Choice Feeding of Fibre on Performance, Gut Development, Humoral Immunity, and Fibre Preference in Broiler Chicks.” Poultry Science 94 (11): 2734–2743. doi:10.3382/ps/pev292.
  • Saha, D. C., and R. L. Gilbreath. 1991. “Analytical Recovery of Chromium from Diet and Faeces Determined by Colorimetry and Atomic Absorption Spectrophotometry.” Journal of the Science of Food and Agriculture 55 (3): 433–446. doi:10.1002/jsfa.2740550311.
  • Santos, F. B. O., A. A. Santos Jr, P. R. Ferket, and B. W. Sheldon. 2006. “Influence of Grain Particle Size and Insoluble Fibre Content on Salmonella Colonization and Shedding of Turkeys Fed Corn Soybean Meal Diet.” International Journal of Poultry Science 5 (8): 731–739. doi:10.3923/ijps.2006.731.739.
  • Sarikhan, M., H. A. Shahryar, B. Gholizadeh, M. H. Hosseinzadeh, B. BEHESHTI, and A. Mahmoodnejad. 2010. “Effects of Insoluble Fibre on Growth Performance, Carcass Traits and Ileum Morphological Parameters on Broiler Chick Males.” International Journal of Agriculture and Biology 12: 531–536.
  • Sarikhan, M., H. A. Shahryar, K. Nazer-Adl, B. Gholizadeh, and B. Behesht. 2009. “Effects of Insoluble Fibre on Serum Biochemical Characteristics in Broiler.” International Journal of Agriculture and Biology 11: 73–76.
  • SAS Institute. 2008. SAS/STAT 9.1 User’s Guide: The REG Procedure (Book Excerpt). SAS Institute.
  • Shahin, K. A., and F. Abd Elazeem. 2005. “Effects of Breed, Sex and Diet and Their Interactions on Carcass Composition and Tissue Weight Distribution of Broiler Chickens.” Arch Tierz Dummertorf 48: 612–625.
  • Shahin, K. A., and F. Abd Elazeem. 2006. “Effects of Breed, Sex and Diet and Their Interaction on Fat Deposition and Partitioning among Depots of Broiler Chickens.” Arch Tierz Dummertorf 49: 181–193.
  • Shirzadegan, K., and H. R. Taheri. 2017. “Insoluble Fibres Affected the Performance, Carcass Characteristics and Serum Lipid of Broiler Chickens Fed Wheat-based Diet.” Iranian Journal of Applied Animal Science 7: 109–117.
  • Singh, Y., V. Ravindran, T. J. Wester, A. L. Molan, and G. Ravindran. 2014. “Influence of Feeding Coarse Corn on Performance, Nutrient Utilisation, Digestive Tractmeasurements, Carcass Characteristics, and Cecal Microflora Counts of Broilers.” Poultry Science 93 (3): 607–616. doi:10.3382/ps.2013-03542.
  • Svihus, B. 2011. “The Gizzard: Function, Influence of Diet Structure and Effects on Nutrient Availability.” World’s Poultry Science Journal 67 (2): 207–224. doi:10.1017/S0043933911000249.
  • Svihus, B., E. Juvik, H. Hetland, and A. Krogdahl. 2004. “Causes for Improvement in Nutritive Value of Broiler Chicken Diets with Whole Wheat Instead of Ground Wheat.” British Poultry Science 45 (1): 55–60. doi:10.1080/00071660410001668860.
  • Svihus, B., and H. Hetland. 2001. “Ileal Starch Digestibility in Growing Broiler Chickens Fed on a Wheat-based Diet Is Improved by Mash Feeding, Dilution with Cellulose or Whole Wheat Inclusion.” British Poultry Science 42 (5): 633–637. doi:10.1080/00071660120088461.
  • Taheri, H. R., N. Tanha, and M. H. Shahir. 2016. “Effect of Wheat Bran Inclusion in Barley-based Diet on Villus Morphology of Jejunum, Serum Cholesterol, Abdominal Fat and Growth Performance of Broiler Chickens.” Journal of Livestock Science and Technologies 4: 9–16.
  • Van der Hoeven-hangoor, E., C. Rademaker, N. Paton, M. Verstegen, and W. Hendriks. 2014. “Evaluation of Free Water and Water Activity Measurements as Functional Alternatives to Total Moisture Content in Broiler Excreta and Litter Samples.” Poultry Science 93 (7): 1782–1792. doi:10.3382/ps.2013-03776.
  • Van Soest, P. V., J. B. Robertson, and B. A. Lewis. 1991. “Methods for Dietary Fibre, Neutral Detergent Fibre, and Nonstarch Polysaccharides in Relation to Animal Nutrition.” Journal of Dairy Science 74 (10): 3583–3597. doi:10.3168/jds.S0022-0302(91)78551-2.
  • Xu, Y., C. R. Stark, P. R. Ferket, C. M. Williams, B. Nusairat, and J. Brake. 2015b. “Evaluation of Litter Type and Dietary Coarse Ground Corn Inclusion on Broiler Live Performance, Gastrointestinal Tract Development, and Litter Characteristics.” Poultry Science 94 (3): 362–370. doi:10.3382/ps/peu057.
  • Xu, Y., C. R. Stark, P. R. Ferket, C. M. Williams, W. J. Pacheco, and J. Brake. 2015a. “Effect of Dietary Coarsely Ground Corn on Broiler Live Performance, Gastrointestinal Tract Development, Apparent Ileal Digestibility of Energy and Nitrogen, and Digesta Particle Size Distribution and Retention Time.” Poultry Science 94 (1): 53–60. doi:10.3382/ps/peu015.
  • Yokhana, J. S., G. Parkinson, and T. L. Frankel. 2016. “Effect of Insoluble Fibre Supplementation Applied at Different Ages on Digestive Organ Weight and Digestive Enzymes of Layer-strain Poultry.” Poultry Science 95 (3): 550–559. doi:10.3382/ps/pev336.

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