الفهرس 
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Abstract
A total of one hundred and twenty swab samples were obtained from the surface of cattle carcasses slaughtered at Zagazig traditional abattoir (20 from each of thigh; outside of the abdomen; innerside of the abdomen; outside of the thorax; innerside of the thorax and neck) and transferred to the laboratory with a minimum of delay to be examined mycologically for presence of mould contamination.
Moulds were found in all examined samples with a mean count/cm2 of 2.21 x 102 ± 0.14 x 102 in thigh samples, while in abdominal samples were 1.95 x 102 ± 0.11 x 102 and 1.05 x 102± 0.61 x 102 on outer and inner surfaces respectively. Moreover, the mean counts/cm2 in thoracic samples were 2.51 x 102 ± 0.11 x 102 amd 0.98 x 102 ± 0.06 x 102 on outer and inner surfaces respectively. Meanwhile, the mean mould count/cm2 was 2.66 x 102 ± 0.11 x 102 in neck samples.
Aspergillus species; Penicillium spp.; Mucor spp.; Cladosporium spp.; Fusarium spp.; Rhizopus spp., Geotrichum spp.; Stemphylium spp.; Syncephalastrum spp.; Alternaria spp.; Acremonium spp.; Thamnidium spp.; Paecilomyces spp.; Botrytis spp.; Aureobasidium spp.; Scopulariopsis spp., Epicoccum spp.; Trichothecium spp.; Monascus spp.; Papularia spp. and Trichoderma spp. could be isolated at varying percentages ranging from 97.5% to 8.3% of examined samples. Furthermore, isolated Aspergillus species were identified as A. niger; A. flavus; A. fumigatus; A. candidus; A. amstelodami; A. chevaleiri; A. ochraceus; A. tamari; A. wentii; A. ustus; A. terreus and A. versicolor and could be found at varying percentages ranging from 71.7% to 4.2% of examined samples.
The public health importance and the economic significance of existing moulds as well as suggested sanitary rules adopted to cover proper dressing, handling and preparation of cattle carcasses were discussed.