Diagnostic study for <i>Listeria monocytogenes</i> isolated from brain and meat of sheep in Mosul city

Aldabbagh, Sumaya

doi:10.33899/ijvs.2019.163087

	Diagnostic study for Listeria monocytogenes isolated from brain and meat of sheep in Mosul city
Iraqi Journal of Veterinary Sciences
Article 47, Volume 33, Issue 2, 2019, Pages 51-55 PDF (668.91 K)
Document Type: Research Paper
DOI: 10.33899/ijvs.2019.163087
Author
Sumaya Aldabbagh
University of Mosul/ College of veterinary medicine /Microbiology department
Abstract
This study included collect of 150 samples from brain and meat of sheep from the slaughterhouse and local butchers shop in Mosul city. 50 sample from each (brain, cutting meat, and minced meat) which used for detection of listeria monocytogenes. The International Standard Organization (ISO) methods were used for isolation. The isolated bacteria were diagnosed according to bacterial morphology, culture, and biochemical characteristics. 10 isolates were obtained, which included 2(4%) isolates from the brain of sheep, 3 (6%) isolates from cut meat and 5(10%) from minced meat. Virulence factors tests were used for bacterial isolates which include, lecithinase, lipase, protease, esterase, and hemolysin. Antibiotic sensitivity test for bacterial isolates was also used for some antibiotics. The results indicated that all isolates were sensitive to Ampicillin, Gentamycin, Chloramphenicol, and resistant to Nalidixic acid. However, they showed variant sensitivity to other antibiotics. In conclusion, this study documented that L monocytogenes can be isolated from brain and meat of sheep in Mosul city.
Keywords
Meat; Isolation; brain; <i>Listeria monocytogenes</i>

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Diagnostic study for Listeria monocytogenes isolated from brain and meat of sheep in Mosul city