First report and risk of infection of Fasciola hepatica (Linnaeus, 1761) in water buffaloes (Bubalus bubalis – Linnaeus, 1758) in Mexico
2022
Ojeda-Robertos, Nadia F. | Peralta-Torres, Jorge A. | Parra-Bracamonte, Gaspar M. | Cruz-González, Alba R. | Luna-Palomera, Carlos | Ulín-Yzquierdo, Cruz | Pires, Luciana A. | Molento, Marcelo B.
The aim of this study was to determine the prevalence and risk of Fasciola hepatica infection in water buffaloes (Bubalus bubalis) during peripartum in southeastern Mexico. An observational study was designed, in which 94 pregnant buffalo cows near calving and naturally exposed to F. hepatica were included. Farm visits were made on days 60, 30, 15 prepartum, at calving, and on days 15 and 30 postpartum. Feces were obtained from all animals to confirm the presence of F. hepatica eggs. A group of 49 animals was randomly treated twice at day 60 prepartum and at calving with nitroxynil and the other group (n = 45) was kept untreated. Buffaloes would be treated once presenting a positive coproparasitological diagnosis up to 30 days postpartum. F. hepatica was detected in 5.3% of the buffaloes (5/94) with a prevalence between 1.7 and 12%. It was observed that treated buffaloes had a lower risk (4.08%) of being positive than untreated buffaloes (6.67%) (P > 0.05). It was also found that untreated animals had 1.6 times more risk of being positive than treated buffaloes. This paper presents the first report of F. hepatica in water buffaloes in Mexico, demonstrating that the two preventive treatments reduced F. hepatica egg shedding during parturition. These findings highlight the need for monitoring for F. hepatica even in unreported/silent potential disease areas.
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