Resumen

ANGULO CUBILLAN, Francisco et al. Prevalence and Monthly EPG Dinamic of Fasciola hepatica and Others Helminths in a Bovine Herd From a Tropical Swamp Zone.. Rev. Cient. (Maracaibo) [online]. 2007, vol.17, n.2, pp.111-116. ISSN 0798-2259.

In order to estimate the prevalence and the monthly EPG values of Fasciola hepatica and others gastrointestinals helmints in a bovine herd, located in the Playa Bonita sector of the Mara Municipality, Zulia State, Venezuela; were taken 242 coprologics samples from cows, which were analized with quantitatives technics (modified McMaster and sedimentation). The mean value of annual prevalence to F. hepatica was 23% and the rank during the study was 0-54.5%, being observed a significative relationship with the month of the year (P<0.01); the EPG mean abundance showed a range since 0 to 6.5, while it’s mean intensity was between 0 and 16.1 EPG. The annual prevalence of Cotylophoron cotylophorum and the nematodes found, were 56.8 and 16.3% and the monthly ones fluctuated between 31.2-73.9 and 0-34.7%, the range of EPG abundance 3.0-37.8 and 0-18.1 and it’s mean intensity 9.6-52 and 0-87.5, respectively. Had an effect and significative relationship of the month of the year on the prevalence and abundance of gastrointestinals nematodes (P<0.05). The results showed of moderate to high values, indicative of a mainly role of mature livestock in the maintenance of these helminthosis in the herd. The relationship of these variables with the months of the year was determined, giving the possibility to use strategic treatments as control measure of these diseases.

Palabras clave : Bovine; epidemiology; Fasciola hepatica; Cotylophoron cotylophorum; gastrointestinals nematodes.