Prevalência e caracterização epidemiológica da brucelose bovina no Estado de Santa Catarina / Prevalence and epidemiological characterization of bovine brucellosis in Santa Catarina state

AUTOR(ES)
DATA DE PUBLICAÇÃO

2004

RESUMO

For this study Santa Catarina has been divided in five epidemiological areas in order to know the epidemiological situation of bovine brucellosis in this state. Systematic random sampling was used for the sampling design. The prevalence of bovine brucellosis was determined as well as the epidemiological characterization of the farms in each of the five areas, and the possibility of grouping some of them according to existent similarity was tested. Serum samples of 7756 animals were collected and an epidemiological survey using questionnaires was carried out in 1579 farms. The prevalence of positive holdings and animals for bovine brucellosis in Santa Catarina state were 0,02% (0,00-0,15%) and 0,06% (0,01-0,40%), respectively. In areas 1 and 2, the prevalence of positive holdings was 0,00% (0,00-1,23%); in area 3 it was 0,00% (0,00-0,93%), in area 4 it was 0,34% (0,00-1,86%) and in area 5 it was 0,00% (0,00-1,26%). Regarding prevalence of serum-positive animals for bovine brucellosis, all areas had prevalence 0,00% (0,00-0,00%), except area 4, which had prevalence 0,89% (0,13-5,76%). Most of the farms of five areas raise the animals extensively, grow mixed-breed cattle, make use of manual milking and do not use artificial insemination. The great majority of the areas develop mixed exploration except area 5 in which most farms grow dairy cattle. Area 3, which has the highest median of dairy milk production (7,5 liters), is the only one where the cooling of the milk is practiced in most of the farms. Area 1 has the highest median of number of bovine (16 bovines per farm). According to the analysis developed, it is suggested that areas 3 and 4 be grouped

ASSUNTO(S)

santa catarina bovines brasil santa catarina animal brucellosis prevalence brucelose animal bovinos prevalência brazil

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