Situación actual de la brucelosis y tuberculosis bovina en la provincia de Santo Domingo de los Tsáchilas

Abstract

An assessment of the current status of brucellosis and tuberculosis was done in cattle herds of 8 rural parishes in the province of Santo Domingo de los Tsáchilas. For tuberculosis 74 farms with a total of 3725 animals were evaluated, while for brucellosis were 64 farms with a total of 3556 animals; all animals sampled were older than 6 months old. Intradermal tuberculin test was performed to farm level; inoculating bovine PPD on the left side of anocaudal fold. For determination of Brucella abortus blood samples were collected by caudal venipuncture; serum was separated by centrifugation at laboratory level, and Rose Bengal (RB) and competitive Elisa (ELISAc) were performed. In each farm a survey was conducted according to Annex 6 of the National Program for Control of Brucellosis, Agrocalidad. Regarding Mycobacterium bovis diagnostic a total of 15 animals were doubtful, and the remaining was negative; doubtful animals were evaluated after 60 days by comparative test, ultimately resulting negative. For Brucella abortus a total of 16 positive through RB were recorded; positive samples to the previous test were subjected to cElisa, through which a single animal resulted positive. In conclusion seroprevalence for Brucella abortus was 1.56 % to farm level and 0,028% to animal level. It is recommended preventive actions and future surveys in the area, in order to monitor and to achieve eventual declaration of the free status disease in the province.