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The tegument of cattle may harbor a great diversity of filamentous fungi that can potentially cause skin diseases, including fungi belonging to the dermatophyte group. This study aimed to characterize the population of filamentous fungi from a healthy coat of cattle, checking for dermatophytes as part of the microbiota, as well as evaluating the presence of dermatophytes in the soil occupied by the animals. During the period of one year, 56 healthy cattle in four properties in the western boundary of the state of Rio Grande do Sul, Southern Brazil, were subjected to monthly samples of hair and skin scrapings. In the same period soil samples were obtained for the detection of dermatophytes. The results indicated a fungal biota classified into 30 different genera, among which the most frequent were (in order of frequency): Nigrospora, Fusarium, Curvularia, Alternaria, Epicoccum, Paecilomyces and Trichoderma. Isolates of Trichophyton mentagrophytes (0.4%), Microsporun gypseum (0.3%), and T. verrucosum (0.1%) were obtained in the samples of skin scrapings. M. gypseum was the dermatophyte most frequently isolated from soil. The results showed that the fungal biota of the external tegument of healthy cattle is transient. Moreover, it was shown that healthy cattle do not act as asymptomatic carriers of T. verrucosum, suggesting that this species of dermatophytes is not resident in the tegument of animals. [ABSTRACT FROM AUTHOR]

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Copyright of Brazilian Journal of Agricultural Sciences / Revista Brasileira de Ciências Agrárias is the property of Universidade Federal Rural de Pernambuco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Abstract: The aim of this study was to typify competitiveness on beef cattle farms from the western border region of the state of Rio Grande do Sul, Brazil. Sixty-three farmers, each with an individual farm area exceeding 900ha, were interviewed using a semi-structured questionnaire, divided in four sections: technology (TEC), management (MAN), market relationships (MR) and institutional environment (IE). Data were analysed using Cluster and Discriminant analyses. Beef cattle producers were divided into three levels of competitiveness: low (LCL), medium (MCL) and high (HCL). Comparing LCL×MCL, the former group of farmers showed lower levels of pasture and reproduction management than the latter (subfactors within TEC). When LCL×HCL were compared, the main differences were the lower access to technological innovation and low investment with herd genetics of LCL compared with HCL. The lower level of management activities (performance recording, animal handling and calculation of financial parameters) of MCL compared with HCL were the main variables that differ between these farms. Cattle producers interviewed here were, in general, competitive, mainly due to the use of technologies on farm. However, there were limitations in the variables related to management. [Copyright &y& Elsevier]