| Effect of tannins on growth performance and intestinal ecosystem in weaned piglets. | |
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MedLine Citation:
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PMID: 20481351 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Tannins are natural polyphenolic compounds that can reduce digestibility of dietary protein but also display antibacterial effects. The present study investigated, in vitro and in vivo, the effect of different levels of tannins (using a chestnut wood extract containing 75% tannins) on growth performance, intestinal microbiota and wall morphology in piglets. During a 24 h in vitro caecal fermentation, the utilisation of tannins at 0.75, 1.5, 3, and 6 g/l significantly reduced total gas production and concentrations of ammonia and volatile fatty acids and increased viable counts of enterococci and coliforms. When fed to piglets at 1.13, 2.25, and 4.5 g/kg, tannins significantly improved feed efficiency and reduced caecal concentrations of ammonia, iso-butyric, and iso-valeric acid. Viable counts of lactobacilli tended to be increased by tannins in the jejunum, while bacterial caecal counts were not affected. Depth of ileal crypts tended to decrease in piglets fed tannins at 2.25 and 4.5 g/kg. The present study showed that feeding weaned piglets with a tannin-rich wood extract can result in improved feed efficiency and reduction of intestinal bacterial proteolytic reactions. The growth-enhancing effect that tannins had on enterococci and coliforms under in vitro conditions deserves further investigation. |
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Authors:
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Giacomo Biagia; Irene Cipollini; Brigitte R Paulicks; Franz X Roth |
Publication Detail:
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Type: Controlled Clinical Trial; Journal Article |
Journal Detail:
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Title: Archives of animal nutrition Volume: 64 ISSN: 1745-039X ISO Abbreviation: Arch Anim Nutr Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-05-20 Completed Date: 2010-06-08 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101222433 Medline TA: Arch Anim Nutr Country: England |
Other Details:
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Languages: eng Pagination: 121-35 Citation Subset: IM |
Affiliation:
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Dipartimento di Morfofisiologia Veterinaria e Produzioni Animali (DIMORFIPA), Universit? di Bologna, Ozzano Emilia, Italy. giacomo.biagi@unibo.it |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed
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analysis Animal Nutritional Physiological Phenomena Animals Diet / veterinary Digestion / drug effects Dose-Response Relationship, Drug Fermentation Intestines / microbiology* Swine / growth & development* Tannins / pharmacology* Weaning Weight Gain / drug effects |
| Chemical | |
Reg. No./Substance:
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0/Tannins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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