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Assessment of yeast cell wall as replacements for antibiotic growth promoters in broiler diets: effects on performance, intestinal histo‐morphology and humoral immune responses

The study compared the effects of an antibiotic growth promoter (AGP), yeast (Saccharomyces cerevisiae) and yeast cell wall (YCW) on performance, microbiology and histo‐morphology of the small intestine and humoral immune responses in Ross 308 broilers. The treatments (eight replicates/treatment, n ...

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Published in:Journal of animal physiology and animal nutrition 2012-04, Vol.96 (2), p.275-284
Main Authors: Ghosh, T. K, Haldar, S, Bedford, M. R, Muthusami, N, Samanta, I
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description The study compared the effects of an antibiotic growth promoter (AGP), yeast (Saccharomyces cerevisiae) and yeast cell wall (YCW) on performance, microbiology and histo‐morphology of the small intestine and humoral immune responses in Ross 308 broilers. The treatments (eight replicates/treatment, n = 12/replicate) were negative control (NC, without AGP), positive control (PC, supplemented with bacitracin methylene disalicylate, 400 mg/kg), Y and YCW (supplemented with yeast and YCW, respectively, 1000 mg/kg). Live weight at 42 days improved (p = 0.086) in the PC, Y and YCW groups. Feed conversion ratio was better (p = 0.039) in the YCW group compared with the other groups. Antibiotic growth promoter in the PC group shortened the villi in duodenum (p = 0.044). Mucosal Escherichia coli number was higher in the PC group (p 
doi_str_mv 10.1111/j.1439-0396.2011.01155.x
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K ; Haldar, S ; Bedford, M. R ; Muthusami, N ; Samanta, I</creator><creatorcontrib>Ghosh, T. K ; Haldar, S ; Bedford, M. R ; Muthusami, N ; Samanta, I</creatorcontrib><description>The study compared the effects of an antibiotic growth promoter (AGP), yeast (Saccharomyces cerevisiae) and yeast cell wall (YCW) on performance, microbiology and histo‐morphology of the small intestine and humoral immune responses in Ross 308 broilers. The treatments (eight replicates/treatment, n = 12/replicate) were negative control (NC, without AGP), positive control (PC, supplemented with bacitracin methylene disalicylate, 400 mg/kg), Y and YCW (supplemented with yeast and YCW, respectively, 1000 mg/kg). Live weight at 42 days improved (p = 0.086) in the PC, Y and YCW groups. Feed conversion ratio was better (p = 0.039) in the YCW group compared with the other groups. Antibiotic growth promoter in the PC group shortened the villi in duodenum (p = 0.044). Mucosal Escherichia coli number was higher in the PC group (p &lt; 0.001), whereas in the digesta E. coli number was lower (p = 0.001) in the PC, Y and YCW groups in relation to the NC. Mucosal Salmonella populations increased (p = 0.0001) in the PC group, whereas in the digesta, all treatments reduced the Salmonella (p = 0.0001). Following oral challenge with Salmonella pullorum, YCW increased E. coli numbers on the mucosa (p &lt; 0.001) whereas in the digesta the Y group had lower (p &lt; 0.0001) number of E. coli. In the digesta, Salmonella count was lower in the YCW group compared with the other treatments (p &lt; 0.01). Yeast cell wall ‐treated birds exhibited better (p &lt; 0.05) humoral immune response against Newcastle disease which was far more persistent over time than in any other treatments. It was concluded that the yeast and the yeast cell wall may have effects identical to BMD on performance of broilers and thus may constitute an effective replacement strategy in the dietary regimens for broiler chickens.</description><identifier>ISSN: 0931-2439</identifier><identifier>EISSN: 1439-0396</identifier><identifier>DOI: 10.1111/j.1439-0396.2011.01155.x</identifier><identifier>PMID: 21535233</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Animal Feed - analysis ; Animal Nutritional Physiological Phenomena ; Animals ; Anti-Bacterial Agents - pharmacology ; antibiotic growth promoters ; Antibiotics ; Antibodies, Viral - blood ; Bacitracin ; body weight ; Bone mineral density ; broiler chickens ; Cell Wall - chemistry ; Cell walls ; Chickens - blood ; Chickens - growth &amp; development ; Chickens - immunology ; diet ; Diet - veterinary ; Dietary Supplements ; Diets ; Duodenum ; Escherichia coli ; feed conversion ; growth promotion ; humoral immunity ; Immune response (humoral) ; immunity ; Immunity, Humoral ; intestinal histology ; Intestines - anatomy &amp; histology ; Intestines - drug effects ; Mucosa ; Newcastle disease ; Newcastle Disease - immunology ; Newcastle Disease - prevention &amp; control ; Poultry ; Promoters ; Saccharomyces cerevisiae ; Salmonella ; Salmonella enterica subsp. enterica serovar Pullorum ; Salmonella pullorum ; Small intestine ; villi ; Viral Vaccines - immunology ; yeast ; yeast cell wall ; Yeasts</subject><ispartof>Journal of animal physiology and animal nutrition, 2012-04, Vol.96 (2), p.275-284</ispartof><rights>2011 Blackwell Verlag GmbH</rights><rights>2011 Blackwell Verlag GmbH.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4915-8b10502d5cded80bc444df2c6d46da3df4dbd7c55bd0c08a8dcd3b4e35fd66843</citedby><cites>FETCH-LOGICAL-c4915-8b10502d5cded80bc444df2c6d46da3df4dbd7c55bd0c08a8dcd3b4e35fd66843</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21535233$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ghosh, T. K</creatorcontrib><creatorcontrib>Haldar, S</creatorcontrib><creatorcontrib>Bedford, M. R</creatorcontrib><creatorcontrib>Muthusami, N</creatorcontrib><creatorcontrib>Samanta, I</creatorcontrib><title>Assessment of yeast cell wall as replacements for antibiotic growth promoters in broiler diets: effects on performance, intestinal histo‐morphology and humoral immune responses</title><title>Journal of animal physiology and animal nutrition</title><addtitle>J Anim Physiol Anim Nutr (Berl)</addtitle><description>The study compared the effects of an antibiotic growth promoter (AGP), yeast (Saccharomyces cerevisiae) and yeast cell wall (YCW) on performance, microbiology and histo‐morphology of the small intestine and humoral immune responses in Ross 308 broilers. The treatments (eight replicates/treatment, n = 12/replicate) were negative control (NC, without AGP), positive control (PC, supplemented with bacitracin methylene disalicylate, 400 mg/kg), Y and YCW (supplemented with yeast and YCW, respectively, 1000 mg/kg). Live weight at 42 days improved (p = 0.086) in the PC, Y and YCW groups. Feed conversion ratio was better (p = 0.039) in the YCW group compared with the other groups. Antibiotic growth promoter in the PC group shortened the villi in duodenum (p = 0.044). Mucosal Escherichia coli number was higher in the PC group (p &lt; 0.001), whereas in the digesta E. coli number was lower (p = 0.001) in the PC, Y and YCW groups in relation to the NC. Mucosal Salmonella populations increased (p = 0.0001) in the PC group, whereas in the digesta, all treatments reduced the Salmonella (p = 0.0001). Following oral challenge with Salmonella pullorum, YCW increased E. coli numbers on the mucosa (p &lt; 0.001) whereas in the digesta the Y group had lower (p &lt; 0.0001) number of E. coli. In the digesta, Salmonella count was lower in the YCW group compared with the other treatments (p &lt; 0.01). Yeast cell wall ‐treated birds exhibited better (p &lt; 0.05) humoral immune response against Newcastle disease which was far more persistent over time than in any other treatments. 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K</au><au>Haldar, S</au><au>Bedford, M. R</au><au>Muthusami, N</au><au>Samanta, I</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Assessment of yeast cell wall as replacements for antibiotic growth promoters in broiler diets: effects on performance, intestinal histo‐morphology and humoral immune responses</atitle><jtitle>Journal of animal physiology and animal nutrition</jtitle><addtitle>J Anim Physiol Anim Nutr (Berl)</addtitle><date>2012-04</date><risdate>2012</risdate><volume>96</volume><issue>2</issue><spage>275</spage><epage>284</epage><pages>275-284</pages><issn>0931-2439</issn><eissn>1439-0396</eissn><abstract>The study compared the effects of an antibiotic growth promoter (AGP), yeast (Saccharomyces cerevisiae) and yeast cell wall (YCW) on performance, microbiology and histo‐morphology of the small intestine and humoral immune responses in Ross 308 broilers. 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Following oral challenge with Salmonella pullorum, YCW increased E. coli numbers on the mucosa (p &lt; 0.001) whereas in the digesta the Y group had lower (p &lt; 0.0001) number of E. coli. In the digesta, Salmonella count was lower in the YCW group compared with the other treatments (p &lt; 0.01). Yeast cell wall ‐treated birds exhibited better (p &lt; 0.05) humoral immune response against Newcastle disease which was far more persistent over time than in any other treatments. It was concluded that the yeast and the yeast cell wall may have effects identical to BMD on performance of broilers and thus may constitute an effective replacement strategy in the dietary regimens for broiler chickens.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>21535233</pmid><doi>10.1111/j.1439-0396.2011.01155.x</doi><tpages>10</tpages></addata></record>
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subjects Animal Feed - analysis
Animal Nutritional Physiological Phenomena
Animals
Anti-Bacterial Agents - pharmacology
antibiotic growth promoters
Antibiotics
Antibodies, Viral - blood
Bacitracin
body weight
Bone mineral density
broiler chickens
Cell Wall - chemistry
Cell walls
Chickens - blood
Chickens - growth & development
Chickens - immunology
diet
Diet - veterinary
Dietary Supplements
Diets
Duodenum
Escherichia coli
feed conversion
growth promotion
humoral immunity
Immune response (humoral)
immunity
Immunity, Humoral
intestinal histology
Intestines - anatomy & histology
Intestines - drug effects
Mucosa
Newcastle disease
Newcastle Disease - immunology
Newcastle Disease - prevention & control
Poultry
Promoters
Saccharomyces cerevisiae
Salmonella
Salmonella enterica subsp. enterica serovar Pullorum
Salmonella pullorum
Small intestine
villi
Viral Vaccines - immunology
yeast
yeast cell wall
Yeasts
title Assessment of yeast cell wall as replacements for antibiotic growth promoters in broiler diets: effects on performance, intestinal histo‐morphology and humoral immune responses
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