| Bacterial responses to different dietary cereal types and xylanase supplementation in the intestine of broiler chicken. | |
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MedLine Citation:
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PMID: 12391903 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Several studies were carried out to investigate the influence of dietary cereals differing in soluble non starch polysaccharides (NSP) content and a xylanase preparation on selected bacterial parameters in the small intestine of broiler chicken. Compared to a maize diet colony forming units (CFU) of mucosa associated bacteria were higher in a wheat/rye diet, most notably for enterobacteria and enterococci. Xylanase supplementation to the wheat/rye diet generally led to lower CFU, especially in the first week of life. However, xylanase supplementation also displayed higher in vitro growth potentials for enterobacteria and enterococci. Bacterial growth of luminal samples in minimal media supplemented with selected NSP showed that the wheat/rye diet enhanced bacterial capacities to utilize NSP only in ileal samples. The xylanase application generally shifted respective maximum growth to the proximal part of the small intestine. The presence of soluble NSP from wheat or rye in the diet per se did not enhance bacterial NSP hydrolyzing enzyme activities in the small intestine, but xylanase supplementation resulted in higher 1,3-1,4-beta-glucanase activity. Compared to a maize diet the activity of bacterial bile salt hydrolases in samples of the small intestine was not increased due to inclusion of wheat/rye or triticale to the diet. However, xylanase supplementation led to a reduction with a corresponding increase of lipase activity. It was concluded that dietary cereals producing high intestinal viscosities lead to increased overall bacterial activity in the small intestine. The supplementation of a xylanase to cereal based diets producing high intestinal viscosity, changes composition and metabolic potential of bacterial populations and may specifically influence fat absorption in young animals. |
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Authors:
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Katrin Hübener; W Vahjen; O Simon |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Archiv für Tierernährung Volume: 56 ISSN: 0003-942X ISO Abbreviation: Arch Tierernahr Publication Date: 2002 Jun |
Date Detail:
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Created Date: 2002-10-23 Completed Date: 2002-12-24 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0217641 Medline TA: Arch Tierernahr Country: Switzerland |
Other Details:
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Languages: eng Pagination: 167-87 Citation Subset: IM |
Affiliation:
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Institute of Animal Nutrition, Faculty of Veterinary Medicine, Free University of Berlin, Germany. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed
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analysis Animal Nutritional Physiological Phenomena Animals Bacteria / growth & development* Bile / enzymology Cecum / microbiology Cereals / metabolism* Chickens / growth & development, metabolism*, microbiology Colony Count, Microbial / veterinary Dietary Supplements Digestion Fatty Acids, Volatile / metabolism Glycoside Hydrolases / metabolism Hydrolases / metabolism Intestine, Small / microbiology* Lipase / metabolism Male Random Allocation Triticum Viscosity Xylan Endo-1,3-beta-Xylosidase Xylosidases / administration & dosage, metabolism* Zea mays |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids, Volatile; EC 3.-/Hydrolases; EC 3.1.1.3/Lipase; EC 3.2.1.-/Glycoside Hydrolases; EC 3.2.1.-/Xylosidases; EC 3.2.1.32/Xylan Endo-1,3-beta-Xylosidase; EC 3.2.1.73/licheninase |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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