Prevalence of parasite eggs and cysts in faeces from dairy cows in Colombia.

When 1,711 bovine faecal samples from 113 farms in eight dairy areas of Colombia were examined for the presence of helminth eggs Fasciola hepatica eggs were found in the faeces from 60% of the farms and samples from animals kept above 2,000 m. Strongyle eggs were found in faeces from 82% of the farms and in 18% of the samples.