A total of 96 imported frozen semen straws represent 11 lots (groups) from different localities at different times during the last four years, revealed the isolation of Listeria monocytogenes from 14 samples by direct and cold enrichment procedures. Eleven isolates which were CAMP positive proved to be pathogenic to mice. Nine isoaltes could be identified biochemically and serologically where 5 isolates were identified only biochemically. The bacteriological count ranged from 4500-9500 cells/straw and the highest count was in group 4.
EL-AYOUBY, S., SHALABY, M., & KOTB, M. (1992). LISTERIA MONOCYTOGENS ISOLATED FROM FROZEN BULL SEMEN.. Veterinary Medical Journal (Giza), 40(1), 1-9. doi: 10.21608/vmjg.1992.371586
MLA
S EL-AYOUBY; M SHALABY; M KOTB. "LISTERIA MONOCYTOGENS ISOLATED FROM FROZEN BULL SEMEN.". Veterinary Medical Journal (Giza), 40, 1, 1992, 1-9. doi: 10.21608/vmjg.1992.371586
HARVARD
EL-AYOUBY, S., SHALABY, M., KOTB, M. (1992). 'LISTERIA MONOCYTOGENS ISOLATED FROM FROZEN BULL SEMEN.', Veterinary Medical Journal (Giza), 40(1), pp. 1-9. doi: 10.21608/vmjg.1992.371586
VANCOUVER
EL-AYOUBY, S., SHALABY, M., KOTB, M. LISTERIA MONOCYTOGENS ISOLATED FROM FROZEN BULL SEMEN.. Veterinary Medical Journal (Giza), 1992; 40(1): 1-9. doi: 10.21608/vmjg.1992.371586
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