Prevalence of bovine fascioliasis, areas at risk and ensuing losses in the state of Goiás, Brazil

Abstract

The present study had to determine the prevalence and spatial distribution of areas at risk of bovine fascioliasis in the state of Goiás, central-western Brazil between 2007 and 2014; to evaluate the associations of some epidemiological variables with occurrences of Fasciola hepatica in animals; and to estimate the economic losses that this parasite on the cattle industry. It could be concluded that of 23,255,979 animals slaughtered, the average prevalence of F. hepatica in cattle in Goiás during the period evaluated was 0.0026% (95% CI: 0.0024-0.0028). In the State of Goias, in about then years (since when this parasite was found for the first time by other researchers in 2007), F. hepatica was diagnosed in 168 new municipalities. Using the regression analysis, the effective bovine herd size was a significant risk factor (OR= 1.21; 95% CI 1.1022-1.4510; p ≤ 0.05) for cattle to be infected with fascioliasis in the state of Goiás. The cattle-rearing industry lost approximately R$ 15,072.75 (US$ 4,785) due to condemn of livers with Fasciola in the state of Goiás. New studies need to be conducted in these regions, with the aim to identify the likelihood of presence of intermediate hosts, which might serve as a source of F. hepatica infection for definitive hosts.

The serodiagnostic potential of recombinant proteins TES–30 and TES–120 in an indirect ELISA in the diagnosis of toxocariasis in cattle, horses, and sheep

“…We made the decision to compare the absolute efficacy of recombinant against native TES because adding another antigen to the procedure in the disease diagnosis of production animals would have increased the diagnosis-related cost further, which is an important factor for farmers [31]. Moreover, the adsorption of Ascaris suum antigens only prevents cross-reactions with the Ascarididae family; hence, cross-reactivity issues with fascioliasis and strongyloidiasis infections would remain [32,33].…”

A Retrospective Study on Bovine Fascioliasis in Veterinary Regional Laboratories in Peninsular Malaysia

“…However, parasitic diseases, such as fascioliasis, are considered major obstacles for the efficient production and maintenance of health as well as food safety of animal origin. They can cause significant economic loss in countries with livestock industry as an important segment of the agricultural products [2, 3]. Fascioliasis is a parasitic disease caused by liver flukes of the Fasciola genus and is of importance for both farm animals (especially ruminants) and humans [4, 5].…”