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Influence of dietary mushroom Agaricus bisporus on intestinal morphology and microflora composition in broiler chickens

Lookup NU author(s): Professor Ilias Kyriazakis

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Abstract

In this study, we evaluated the intestinal morphology and bacteria populations in broiler chickens fed for six weeks diets that contained different amount of the mushroom Agaricus bisporus. Ninety day-old female chicks were randomly divided into three dietary treatments, each with three replicates kept in floor pens and fed a basal diet supplemented with the dried mushroom at levels of 0, 10 or 20 g/kg fresh feed. Feed and water were offered to birds ad libitum. The morphological examinations of the intestine were carried out on 1-cm long excised segments from duodenum, jejunum and ileum. The populations of total aerobes, total anaerobes, Lactobacilli spp., Bifidobacteria spp., Escherichia coli, Bacteroides spp. and Enterococci were enumerated in ileum and caecum by conventional microbiological techniques using selective agar media. The results of the study showed that dietary mushroom supplementation did not significantly affect intestinal morphology at either level of inclusion. Morphometrical parameters of depth of duodenum, jejunum and ileum crypt and height of villi revealed no differences amongst dietary treatments. In the ileum, Lactobacilli spp. were higher in birds supplemented at the level of 20 g/kg compared to controls; however, other measurements of bacteria loads were similar amongst the three dietary treatments. In the caecum, Lactobacilli spp. and Bifidobacteria spp. loads were higher in birds supplemented at either level of inclusion compared to control birds, although these did not differ between the two levels of supplementation. In conclusion, dietary mushroom supplementation may beneficially affect intestinal health of broiler chickens.


Publication metadata

Author(s): Giannenas I, Tontis D, Tsalie E, Chronis EF, Doukas D, Kyriazakis I

Publication type: Article

Publication status: Published

Journal: Research in Veterinary Science

Year: 2010

Volume: 89

Issue: 1

Pages: 78-84

Print publication date: 06/03/2010

ISSN (print): 0034-5288

ISSN (electronic): 1532-2661

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.rvsc.2010.02.003

DOI: 10.1016/j.rvsc.2010.02.003


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