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KMID : 1024520180270010055
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Journal of the Environmental Sciences
2018 Volume.27 No. 1 p.55 ~ p.58
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Effects of Sea Urchin Shell Powder as Poultry Diet on E.coli and Salmonella in Poultry Litter -A Field Study-
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Choi In-Hag
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Abstract
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The purpose of this study was to evaluate the effect of sea urchin shell powder, used in broiler diet, on Esherichia coli and Salmonella in litter produced by the broilers. A total of 120 broiler chickens were fed 1 of 3 treatment diets (10 chickens per pen) in a randomized block design treatments with 4 replications. Sea urchin shell powder was used in the concentrations of 0.5% and 1% in the basal diets; the control diet was constituted of basal diet. During the 3-week feeding trials, none of the treatments significantly affected the E. coli populations in poultry litter at weeks 0 and 1, nor did they affect the and S. enterica populations at weeks 1 and 3. However, dietary sea urchin shell powder addition affected the population of E. coli at weeks 2 and 3, and that of S. entericaat weeks 0 and 2 (P<0.05). It is therefore concluded that the use of dietary sea urchin shell powder (0.5% and 1%) will be beneficial enough to reduce E. coli, rather than S. enterica in poultry litter over short-term periods.
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KEYWORD
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E.coli, Poultry litter, Salmonella enterica, Sea urchin shell powder
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