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A comparison of three xylanases on the nutritive value of two wheats for broiler chickens

Published online by Cambridge University Press:  09 March 2007

M. Choct ,
A. Kocher ,
D. L. E. Waters ,
D. Pettersson  and
G. Ross
M. Choct*
Affiliation:
School of Rural Science and Agriculture, University of New England, Armidale, NSW 2351, Australia
A. Kocher
Affiliation:
School of Rural Science and Agriculture, University of New England, Armidale, NSW 2351, Australia
D. L. E. Waters
Affiliation:
School of Rural Science and Agriculture, University of New England, Armidale, NSW 2351, Australia Centre for Plant Conservation Genetics, Southern Cross University, Lismore, NSW 2480, Australia
D. Pettersson
Affiliation:
Novozymes A/S, 2880 Bagsvaerd, Denmark
G. Ross
Affiliation:
Novozymes Australia Pty Ltd, PO Box 4942, North Rocks, NSW 2151, Australia DSM Nutritional Products, Frenchs Forest, NSW 2086, Australia
*
*Corresponding author: fax + 61 02 6773 3050, Email [email protected]
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Abstract

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Three xylanase products, xylanase A derived from Thermomyces lanuginosus, xylanase B from Humicola insolens and xylanase C from Aspergillus aculeatus, were examined for their effects on the nutritive value of wheat. The study investigated the effects of enzyme addition to broiler diets based on a low-metabolisable-energy (ME) wheat and a normal-ME wheat, with the emphasis on changes in composition of the NSP along the digestive tract in broiler chickens. There were significant (P>0·01) enzyme and wheat effects on the apparent ME, but there was no wheat×enzyme interaction on apparent ME. Weight gain and feed conversion efficiency (except xylanase C for normal wheat) were also significantly (P>0·01) increased by the xylanases. The enzymes differed in their effect on a number of important nutritional parameters. Xylanase A reduced (P>0·05) the excreta moisture level from 77·1% in birds fed the normal-ME wheat control to 73·4% and from 77·4% in those fed the low-ME wheat to 73·0%. The other two enzymes did not affect excreta moisture levels. The digesta viscosity in the duodenum, jejunum and ileum of birds fed both types of wheat was reduced (P>0·01) by xylanases A and C, but was increased (P>0·01) in the jejunum and ileum by xylanase B. The digestibility of the soluble NSP was mostly negative in the small intestine. The digestibility of the insoluble NSP differed (P>0·01) between the two wheats, with those in the low-ME wheat being more digestible (14 v. 28%). When supplemented with xylanase A, the ileal digestibility of the insoluble NSP in the normal- and low-ME wheats was increased by 28 and 42?%, respectively. Xylanases B and C did not affect the digestibility of the insoluble NSP regardless of wheat type. It may be concluded that wheats with low or normal ME values vary in their responses to xylanase supplementation. Apart from having an elevated level of soluble NSP, low-ME wheat may also contain insoluble NSP, which in the present study appeared to be more easily degradable in the gut of the chicken.

Keywords

PoultryEnzymesNon-starch polysaccharidesNutritive value of wheat
Type
Research Article
Information
British Journal of Nutrition , Volume 92 , Issue 1 , July 2004 , pp. 53 - 61
Copyright
Copyright © The Nutrition Society 2004

References

1Angkanaporn, K, Choct, M, Bryden, WL, Annison, EF & Annison, GEffects of wheat pentosans on endogenous amino acid losses in chickens. J Sci Food Agric 1994 66, 399–404.CrossRefGoogle Scholar
2Annison, GRelationship between the levels of soluble nonstarch polysaccharides and the apparent metabolizable energy of wheats assayed in broiler chickens. J Agric Food Chem 1991 39, 1252–1256.CrossRefGoogle Scholar
3Annison, GCommercial enzyme supplementation of wheat-based diets raises ileal glycanase activities and improves apparent metabolisable energy, starch and pentosan digestibilities in broiler chickens. Anim Feed Sci Technol 1992 38, 105–121.CrossRefGoogle Scholar
4Annison, G & Choct, MAnti-nutritive activities of cereal non-starch polysaccharides in broiler diets and strategies minimizing their effects. World's Poultry Sci J 1991 47, 232–242.CrossRefGoogle Scholar
5Annison, G, Choct, M & Hughes, RJAME determination and its application to lupins. Aust Poultry Sci Symp 1994 6, 92–96.Google Scholar
6Bedford, MRThe role of carbohydrases in feedstuff digestion. In Poultry Feedstuffs: Supply, Composition and Nutritive Value, PP.319–336 [McNab, JM and Boorman, KN, editors] London: CABI Publishing. 2002.Google Scholar
7Bedford, MR & Classen, HLReduction of intestinal viscosity through manipulation of dietary rye and pentosanase concentration is effected through changes in the carbohydrate composition of the intestinal aqueous phase and results in improved growth rate and food conversion efficiency of broiler chicks. J Nutr 1992 122, 560–569Google Scholar
8Choct, M & Annison, GAnti-nutritive activity of wheat pentosans in broiler diets. Br Poultry Sci 1990 31, 811–821.CrossRefGoogle ScholarPubMed
9Choct, M & Annison, GAnti-nutritive effect of wheat pentosans in broiler chickens: roles of viscosity and gut microflora. Br Poultry Sci 1992 a 33, 821–834.CrossRefGoogle ScholarPubMed
10Choct, M & Annison, GThe inhibition of nutrient digestion by wheat pentosans. Br J Nutr 1992 b 67, 123–132.CrossRefGoogle ScholarPubMed
11Choct, M, Hughes, RJ, Trimble, RP & Annison, GThe use of enzymes in low-AME wheat broiler diets: effects on bird performance and gut viscosity. Aust Poultry Sci Symp 1994 6, 83–87.Google Scholar
12Choct, M, Hughes, RJ, Wang, J, Bedford, MR, Morgan, AJ & Annison, GIncreased small intestinal fermentation is partly responsible for the anti-nutritive activity of non-starch polysaccharides in chickens. Br Poultry Sci 1996 37, 609–621.CrossRefGoogle ScholarPubMed
13Choct, M & Kocher, A 2000. Xylanases of Different Origins: Effect on Nutritive Value of Wheat in Poultry. A Poultry Research Report. Armidale, NSW, Australia: University of New England.Google Scholar
14Dusel, G, Kluge, H & Jeroch, HXylanase supplementation of wheat-based rations for broilers: influence of wheat characteristics. J Appl Poultry Sci 1998 7, 119–131.CrossRefGoogle Scholar
15Edwards, CA, Johnson, IT & Read, NWDo viscous polysaccharides slow absorption by inhibiting diffusion or convection?. Eur J Clin Nutr 1988 42, 306–312.Google ScholarPubMed
16Fawcett, R & Webster, MValuing variance reduction. Aust Poultry Sci Symp 1996 8, 53–64.Google Scholar
17Fincher, GB & Stone, BACell walls and their components in cereal grain technology. InAdvances in Cereal Science and Technology, Pp. 207–295[Pomeranz, Y, editors] St Paul, MN: American Association of Cereal Chemists. 1982.Google Scholar
18Ikegami, S, Tsuchihashi, F, Harada, H, Tsuchihashi, N, Nishide, E & Innami, SEffect of viscous indigestible polysaccharides on pancreatic-biliary secretion and digestive organs in rats. J Nutr 1990 120, 353–360.Google Scholar
19Manugistics, Inc Statgraphics Plus for Windows Rockville, MD: Manugistics, Inc. 2000.Google Scholar
20Mollah, Y, Bryden, WL, Wallis, IR, Balnave, D & Annison, EFStudies on low metabolisable energy wheats for poultry using conventional and rapid assay procedures and the effect of processing. Br Poultry Sci 1983 24, 81–89.CrossRefGoogle Scholar
21National Health & Medical Research Council Australian Code of Practice for the Care and Use of Animals for Scientific Purposes Canberra, Australia: Australian Government Publishing Services. 1990.Google Scholar
22Petterson, D & Åman, PEnzyme supplementation of a poultry diet containing rye and wheat. Br J Nutr 1989 62, 139–149.CrossRefGoogle Scholar
23Philip, JS, Gilbert, HJ & Smithard, RRGrowth, viscosity and beta-glucanase activity of intestinal fluid in broiler chickens fed on barley-based diets with or without exogenous beta-glucanase. Br Poultry Sci 1995 36, 599–603.CrossRefGoogle ScholarPubMed
24Rogel, AM, Annison, EF, Bryden, WL & Balnave, DThe digestion of wheat starch in broiler chickens. Aust J Agric Res 1987 38, 639–649.Google Scholar
25SAS Institute, Inc SAS Procedures Guide, Release 6.03 Cary, NC: SAS Institute, Inc. 1988.Google Scholar
26Standing Committee on Agriculture and Resource Management Australian Model Code of Practice for the Welfare of Animals. Domestic Poultry Melbourne: Australia CSIRO. 1995.Google Scholar
27Theander, O & Westerlund, EDetermination of individual components of dietary fiber. In Dietary Fiber in Human Nutrition,2nd ed Pp.77–98Spiller AG Boca Raton: FL CRC Press, Inc. 1993.Google Scholar
28Veldman, A & Vahl, HAXylanase in broiler diets with differences in characteristics and content of wheat. Br Poultry Sci 1994 35, 537–550.CrossRefGoogle ScholarPubMed
29Wang, L, Newman, RK, Newman, CW & Hofer, PJBarley beta-glucans alter intestinal viscosity and reduce plasma cholesterol concentrations in chicks. J Nutr 1992 122, 2292–2297.Google Scholar