Pesquisa Veterinária Brasileira
versión impresa ISSN 0100-736X
AMARAL, Armando Lopes et al. Risk factors at the growth-termination phase associated with the occurrence of lymphadenitis in swine. Pesq. Vet. Bras. [online]. 2004, vol.24, n.3, pp. 120-122. ISSN 0100-736X. http://dx.doi.org/10.1590/S0100-736X2004000300002.
An epidemiological study in 60 units of swine termination (UT), pertaining to producers integrated with the main Agribusiness of the States of Santa Catarina and Rio Grande do Sul. These units had been selected due to the occurrence of lymphadenitis in slaughtered pigs. The batch size studied in each UT varied from 22 to 960 pigs. The animals were considered positive or negative for lymphadenitis, following the evaluation routine of the Service of Federal Inspection (SIF) at slaughter. For data collection at the UTs, a questionnaire with 156 variables was applied at a single visit to the farms. In the 60 UT studied, the percentage of positive animals for lymphadenitis was 10.37%. Among the variables analyzed, nine risk factors were identified (explicative variables) and associated with the occurrence of lymphadenitis (objective variables). The explicative variables were: bad hygiene of the feeders and drinking fountains, untreated drinking water, bad conservation of the facilities, use of the same truck for ration and animal transportation, production of ration inside the farm, free access of other animals to the ingredients of ration, storage of ready usable ration in boxes or bags and handling of the production of animals in an continuous system.
Palabras llave : Swine; risk factors; lymphadenitis.