Microflora carcaselor de bovine, ovine, porcine si sensibilitatea ei fata de unele antibiotice | Microflora of cattle, sheep and pig carcasses and its sensitivity to some antibiotics
2014
Antoci, R., Universitatea Agrara de Stat din Moldova, Chisinau (Republic of Moldova) | Starciuc, N.
The scientific investigations presented in this study aimed to monitor the microbial load of cattle, sheep and pig carcasses during the commercialization period in the specialized department of the central agricultural market of Chisinau mun.(Republic of Moldova). The samples were collected and monitored before being placed in the department and also 24 and 48 hours after the placement. Also, the samples were collected both from the surface and the depths of the carcasses. Subsequently, from these samples, inseminations were performed on ordinary, differential and selective nutrient media in order to determine the presence and diversity of bacterial forms. Concomitantly, the morphological study of the colonies of isolated microorganisms was performed, as well as the microscopic examination of the smears prepared from the colonies of microorganisms and the sensitivity of isolated microorganisms to some antibiotics,frequently used for animal treatment, was determined. As a result of the accomplished investigations, it was determined that the colonies of microorganisms developed on all the carcasses, but a higher incidence was recorded in the samples of cattle and sheep carcasses collected 24 and 48 hours after being placed in the specialized selling department. The microscopic examination demonstrated the prevalence of bacterial forms such as E. coli and Staphylococcus. The antibiogram showed that the microflora isolated from sheep carcasses manifested the highest sensitivity to the antibiotics florfenicol and cefazolin (the inhibition zone was of 12 and 17 mm, respectively), and the lowest sensitivity was established to ampicillin and erythromycin.
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