Abstract

GALLEGO, Manuel Isaac; AZUMENDI, José Luis; SALAZAR, Andrés Felipe  and  GALLEGO, Carolina. LISTERIOSIS INFLUENCE ON FERTILITY AND OCCURRENCE OF SUBCLINICAL MASTITIS IN A DAIRY CLUSTER OF SAVANNAH BOGOTA, COLOMBIA. rev.udcaactual.divulg.cient. [online]. 2015, vol.18, n.2, pp.409-415. ISSN 0123-4226.

This research aimed to determine the influence of listeriosis on the reproductive performance and the presentation of mastitis in a dairy cluster of the Sabana de Bogotá. We randomly selected eighty four cows in production and reproductive capacity in four farms, which were examined twice with an interval of two months for a total of 168 samples by ELISA test for specific bovine IFγ for listeriosis. The results indicated an incidence of 36% of positivity to the disease. Positive cows for IF_γ had grade 1 of subclinical mastitis (P <0.00001) and grade 2 (P <0.3402). The figures for abortions in these animals were higher than negatives (P <0.0002). Accordingly, had higher number of open days (P <0.00001) and a greater number of services per conception (P <0.0093). The results highlight the negative influence of Listeria monocytogenes infection on the reproductive tract and responsibility of the microorganism in the presentation of mastitis in infected cattle.

Keywords : Infertility; mastitis; dairy cattle.

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