An observational 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 and also 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 variable of the ecosystem in intensive swine operation. The data were analyzed by multiple correspondence analyses identifying ten variables associated with the occurrence of mange: area less then 0.85m²/pig; air volume less then 3.0m³/pig, handling of building in the continuous system; air humidity less then 60% or greater then 70%; use of mashed meal and offered "add libitum" with use of ration with composition is different of the recommendations techniques; excess of flies in building and occurrence of other illness presented in the group of pigs. These variables are shown in a map allowing to visualize the factors associated with group of pigs of low, average and high prevalence of mange. Of the 3.948 pigs examined in the slaughter plant, 16.64% had presented erythematous papules dermatitis in the skin indicative of mange.
slaughter swine; Sarcoptes scabiei var suis; mange; epidemiology; risk factors
