Prevalence of liver condemnation due to bovine fasciolosis in Southern Espírito Santo: temporal distribution and economic losses

Abstract

The present study was conducted to evaluate the economic losses and temporal distribution of the prevalence of liver condemnation due to bovine fasciolosis. The abattoir in Atílio Vivácqua, in the South of the State of Espírito Santo, which is under state inspection by the veterinary service of the Livestock and Forest Protection Institute of Espírito Santo, was used as the data source. The prevalence of liver condemnation due to fasciolosis over the period 2006-2009 was calculated. The χ(2) test, simple linear regression analysis and χ(2) for trend were used, with a significance level of p ≤ 0.05. Over the period analyzed, 110,956 cattle were slaughtered and the prevalence of liver condemnation due to Fasciola hepatica was 15.24% in 2006, 23.93% in 2007, 28.57% in 2008 and 28.24% in 2009. The historical trend of liver condemnation is an increasing trend, thus indicating that this parasitism has become established in the herd as a problem in this region, with prevalence similar to that of traditionally endemic regions. Condemnations occurred throughout the year, with the highest prevalence in April and May and with significant differences between the dry and wet seasons. The economic losses from liver condemnation can be considered high.

The population density of Lymnaea columella (Say, 1817) (Mollusca, Lymnaeidae) an intermediate host of Fasciola hepatica (Linnaeus, 1758), in the Caparaó microregion, ES, Brazil

“…In this context, the state of Espírito Santo becomes a potential breeding site, due to the warm and humid climate and local topography to the development of the parasite and its host (Bernardo et al, 2011). Martins et al (2012) observed the existence of risk areas for fasciolosis in the southern region of this state and Freitas et al (2014) reported prevalence rates of up to 28.41% for the disease.…”

Comparação de kits ELISA® comerciais para anticorpos no soro e leite com um teste coproparasitológico em bovinos naturalmente infectados por Fasciola hepatica

“…No Espírito Santo, a prevalência de condenação de fíga-dos por fasciolose bovina ao abate está em torno de 30% (Bernardo et al 2011) o que resulta em preocupação dos criadores em diagnosticar os animais positivos precocemente, antes que haja danos ao fígado e principalmente para que seja possível evitar a contaminação ambiental evitando a continuidade do ciclo e consequentemente a infecção de novos animais. Neste sentido, o ELISA se mostrou mais sensível que o exame coproparasitológico, tendo o potencial de ser utilizado para diagnosticar e tratar infecções precoces, sendo essa sua grande vantagem.…”

Climate change on the forecasted risk of bovine fasciolosis in Espírito Santo state, Brazil

“…In a study by Bernardo et al (2011) with data from a slaughterhouse in the Atilio Vivácqua city, 27.625 livers were condemned due to fasciolosis, representing a prevalence of 24.89% between the years 2006 to 2009. Freitas et al (2014) also found high percentages of prevalence, being recorded mainly in the southern region of the state, with percentages ranging from 0.01 to 28.41%.…”