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Bulletin No. 18 - Spring 2004
Parasitology- No Category
PEDROSO-DE-PAIVA D, MORES N, BARIONI JUNIOR W, COSTA OAD, SOBESTIANSKI J, AMARAL AL DO
Risk factors associated with mange occurrence and prevalence in pigs during the growing and finishing phases, in the south region of Brazil. [Fatores de risco associados a ocorrencia de sarna sarcoptica e prevalencia em suinos nas fases de cresciment
Ciencia Rural. 2003, 33 ( 4 ): p.731-736.
An epidemiological research was carried out in 64 swine herds in the South region of Brazil. The objective of this study was to determine the prevalence of mange and to identify the set of risk factors that best explain the occurrence of mange during the growing and finishing phases in swine operations. A protocol was applied enclosing the variables of the ecosystem in intensive swine operation. The data were analysed by multiple correspondence analyses, identifying 10 variables associated with the occurrence of mange. These variables were area less than 0.85 m2/pig, air volume less than 3.0 m3/pig, handling of building in the continuous system, air humidity less than 60% or greater than 70%, use of mashed meal offered ad libitum with ration having a composition different from the recommendation techniques, excess of flies in building, and occurrence of other illness presented in the group of pigs. These variables were shown in a map, which allowed the visualization of the factors associated with groups of pigs having low, average, and high prevalence of mange. Of the 3948 pigs examined in the slaughter plant, 16.64% had erythematous papules dermatitis in the skin which was indicative of mange. 20 ref.
