El presente estudio tuvo como objetivo determinar las dimensiones morfológicas de paramfistomidos adultos recolectados en el Centro de Beneficio Municipal de Chachapoyas, Amazonas, Perú. Las muestras fueron recolectadas en setiembre de 2017. Se seleccionaron 40 parásitos adultos de tamaño uniforme a los cuales se les sometió a ovoposición usando las técnicas de Dinnik y Dinnik modificada. Se seleccionaron al azar 30 huevos. A la evaluación, el parásito adulto en estado fresco presenta un color rojizo, más intenso en los extremos anterior y posterior, con cuerpo cónico y curvado ventralmente. Los especímenes midieron 8.85 mm de largo, 2.27 mm de ancho, 0.32 mm ventosa anterior y 0.60 mm ventosa posterior y las dimensiones de los huevos fueron de 126.91 µm de largo por 63.7 µm de ancho. Los valores obtenidos pertenecen a un parásito de la familia Paramphistomidae, compatibles con Calicophoron microbothrioides.
El trabajo tuvo como objetivo identificar al agente etiológico de linfadenitis en cuyes de cinco granjas de crianza familiar comercial de Cajamarca, Perú, así como determinar la sensibilidad de los agentes encontrados frente a antibacterianos de uso frecuente en el lugar (amoxicilina, ciprofloxacino, nitrofurantoína, cefalexima, tetraciclina, trimetoprima/sulfametoxazol y penicilina). Se obtuvieron cinco cuyes con signos clínicos de linfadenitis y se tomaron muestras de los ganglios cervicales afectados. Se hizo el aislamiento bacteriano en agar Sangre y agar MacConkey y el antibiograma según el método de Kirby-Bauer. El agente etiológico fue Trueperella pyogenes, altamente sensible a nitrofurantoína y resistente a penicilina.
Fasciolosis is a relevant zoonotic disease in the Peruvian Andes, it causes considerable economic losses by reducing cattle productivity and currently, resistance to anthelmintics is reported, so it is necessary to find new ways to comprehensively control this parasitosis. In this context, the objective of this study was to demonstrate the influence of the type of irrigation on the prevalence of bovine (Bos taurus) fasciolosis in dairy production units in the province of San Marcos, Cajamarca region, Peru. A total of 20 dairy cattle were introduced in two farms with different irrigation systems: traditional or flood irrigation (n = 10) and technified or sprinkler irrigation (n = 10). Starting in March and for ten consecutive months they were fed the rations produced on the farms and the prevalence of fasciolosis was monitored using the coproparasitological technique of natural sedimentation. In the livestock unit using flood irrigation, eggs excretion began in August, with a final prevalence of 60%; while in the livestock unit using sprinkler irrigation, the first cases were detected in September and the final prevalence was 20%. To the results, Fischer’s test determined that there was no association between the prevalence of the parasite and the type of irrigation (p=0.1698). The study suggests that the prevalence of fasciolosis in cattle fed rye-grass (Lolium perenne) / clover (Trifolium repens) grown with flood irrigation was higher than that of sprinkler irrigation; however, it is recommended to investigate with a larger number of samples and use more specific diagnostic methods.
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