الفهرس | يوجد فقط 14 صفحة متاحة للعرض العام |
المستخلص The outer surface of total 20 bovine carcasses was examined mycologically after slaughtering, skinning and eviscerating them at Mansoura municipal abattoir. Round, flank, shoulder and neck were representative sites from each of 10 bovine carcasses sampled at abattoir, while the abdominal flap was representative site from each of the other 10 bovine carcasses sampled at laboratory. Sampling of all sites was alternatively done by triplicate swabbing ?3 cottongauze swabs for each sample? before and after decontamination trials. A total of five decontamination trials were carried out for reducing the fungal contamination on bovine surfaces: (1) Hosespraying of whole outer surface of dressed carcass with a municipal (tap) water for one minute; (2) Hosespraying of whole outer surface of dressed carcass with a tap water for one minute, followed by wiping with a sterile cloth until removal most of visible dirts; (3) Spraying of a limited outside surface area of abdominal flap (about 10<U+00D7>10 cm), freshly excised from tested carcasses with 0.27% benzoic acid solution for one minute,(4) Spraying of a limited outside surface area of abdominal flap, recently excised from carcasses, with 2% acetic acid solution for one minute, and (5) Spraying of a limited outside surface area of abdominal flap, freshly excised from tested carcasses with 2.5% potassium sorbate solution or one minute . Sensory evaluation of samples after treating them 0.27% benzoic acid , acetic acid (2%) or 2.5% potassium sorbate showed no change in their colour, odour and taste. The isolated mould strains were identified into different genera with further group characterization of the obtained aspergilli. The public health and economic importance of isolated fungi as well as recommendations for preventing and minimizing the fungal contamination of bovine carcasses to the lowest and safest levels were also discussed. |