1,721,098 research outputs found
Antimicrobial susceptibility of environmental Staphylococcus aureus strains isolated from a pigeon slaughterhouse in Italy
No full textNo information is available concerning theantimicrobial susceptibility of Staphylococcus aureus isolatedfrom pigeon slaughterhouses. In the present study,59 staphylococcal strains isolated from a pigeon slaughterhousein central Italy were compared according to theirantibiotic resistance. Onthe basis of cultural and biochemicalproperties, all isolates could be identified as S. aureus.The strains were checked for the productions of enterotoxinsA, B, C, D by reversed passive latex agglutination.Resistance to 26 antibiotics was also determined payingparticular attention to resistance to those antimicrobialagents frequently used in human medicine and in poultrybreeding. Only one strain was positive for the productionof enterotoxins type C and D. It was isolated from theevisceration tube after slaughtering. Enterotoxin B wasproduced by 2 strains isolated from the eyebrows andconjunctivas of the worker operating the crop rinsing tube. As to the susceptibility to antibiotics, all strainswere sensitive to amoxicillin/clavulanic acid, bacitracin,cephalothin, fusidic acid, gentamicin, kanamycin, linezolid,oxacillin, quinupristin/dalfopristin, rifampicin, tobramycin,trimethoprim-sulfamethoxazole, vancomycin.Some (15.2%) of the strains were resistant to ampicillinand to penicillin G; 6.8% were resistant to chloramphenicol,20.3% to enrofloxacin, 16.9% to erythromycin and tociprofloxacin, 8.5% to clindamycin, and 11.9% to lincomycin.The highest percentages of strains were resistant totetracycline and oleandomicin (37.3 and 25.4% respectively).Methicillin-resistant staphylococci were alsofound (3.4%). Only one strain had a multiple antibioticresistance index >0.30. The results were statistically analyzedand clustered in 6 groups. This work provides theantibiotic resistance pattern of S. aureus strains isolatedfrom a pigeon slaughtering plant and represents a studyon a quite unknown field in meat production.[...
Comportamento di Listeria monocytogenes in alici sperimentalmente inoculate e sottoposte a processo di marinatura
No full textDeferment of slanghtering in swine affected by cutaneous erysipelas
No full textAccording to the European Union rules for meat inspection (Regulation (EC) No. 854/2004 of the European Parliament and ofthe Council of 29 April 2004, that will be enforced in January 2006 in place of Council Directive 91/497/EEC of 29 July 1991 andCouncil Directive 91/498/EEC of 29 July 1991), any swine carcase affected by erysipelas must be destroyed. When pigs showerysipelas during antemortem inspection, the slaughtering must be deferred. Legislation however does not specify how long shouldbe this period. In our research, 24 swine showing cutaneous erysipelas during antemortem inspection, have been tested: 8 of themwere slaughtered after 10 days, 8 after 15 days and 8 after 20 days from the observation of the disease. Skin with scars of ‘‘diamondlesions’’, spleen, liver, kidney, inguinal lymph nodes, tonsils and muscle samples were tested in each carcase for the presence ofErysipelothrix rhusiopathiae. The results suggest that the slaughtering of swine affected by cutaneous erysipelas must be deferredfor at least 15 days from disappearance of typical lesions, in order to guarantee a good level of safety of the meat and to reducethe hazard of occupational disease for veterinarians, abattoir workers and meat processors.[...
Comportamento di Listeria monocytogenes in alici sperimentalmente inoculate e sottoposte a processo di marinatura: nota preliminare
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Crescita di Staphylococcus aureus enterotossico e produzione di termonucleasi durante la stagionatura di salame italiano tipo cacciatore
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