E. Coli
E. Coli
E. Coli
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Review of Literature<br />
salmonella species were isolated. Five salmonella serotypes were<br />
identified; S. typhomurium was the most common one of them.<br />
Irwin et al. (1989) studied the prevalent of Salmonella species in<br />
Ontario broiler chicken by culturing cloacal samples from 500<br />
individual birds selected from 50 poultry farms. Results of cloacal<br />
samples revealed, the presence of 19/500 (3.8%) samples contained<br />
salmonella species. Nine different salmonella species serotypes were<br />
isolated, the most common being S.hadar, S.heidelberg and S.<br />
mbandaka.<br />
Machado and Bernardo (1990) carried out a bacteriological<br />
examination of 300 chicken carcasses during the period of 1986-1987.<br />
it was found that 57% of the examined carcasses were contaminated<br />
with salmonella species. By serotyping, 3% of the salmonella strains<br />
were S.typhimurium.<br />
Poppe et al. (1991) estimated that the prevalence of salmonella<br />
species among Canadian commercial broiler flocks. They found that<br />
environmental (Litter and/or water) samples from 226 of 294 (76.9%)<br />
were contaminated with salmonella litter samples were more often<br />
contaminated with salmonella than water samples (47.4 versus<br />
12.3%). The most prevalent salmonella serovars from 50 salmonella<br />
strains were S.hadar, S.infantis and S.schwarzengrund; they were<br />
isolated from samples of 98/294 (33.3%), 26/294 (8.8%) and 21/294<br />
(7.1%) respectively. Thirty nine from 290 (13.4%) feed samples were<br />
contaminated with Salmonella enteritidis was isolated from<br />
environmental samples of 9/294 (3.1%).<br />
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