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Enzyme supplementation in poultry feed: In vitro and in vivo effects on microbial growth

Posted on:2006-05-14Degree:M.ScType:Thesis
University:University of Manitoba (Canada)Candidate:Rosin, Erin AlannaFull Text:PDF
GTID:2453390008961034Subject:Biology
Abstract/Summary:
The partial ban of antibiotics in animal feed has increased the need for alternative methods to improve and maintain animal health. Although exogenous enzymes have been added to poultry diets for years in order to reduce the viscosity of feed caused by non-starch polysaccharides (NSP), it is now believed that they may also result in health benefits to the animal.;In order to determine the effect of enzyme supplementation on gut bacteria, microorganisms commonly found in the poultry gut (Enterococcus faecalis, Enterococcus gallinarum, Lactobacillus brevis, Bifidobacterium pullorum, Bifidobacterium gallinarum, Bifidobacterium animalis, Lactobacillus rhamnosis and Lactobacillus acidophilus) and important pathogenic bacteria ( Listeria monocytogenes, Escherichia coli, Salmonella Typhimurium, Salmonella Pullorum, Clostridium perfringens and Campylobacter jejuni) were tested for growth on common feed components (beta-glucan, xylan, galactomannan and raffinose) with or without addition of the corresponding enzymes (glucanase, xylanase, galactanase and galactosidase). (Abstract shortened by UMI.)...
Keywords/Search Tags:Feed, Poultry
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