This study determine the prevalence of Eimeria spp and performs the morphometric study of the oocysts found in the faeces of guinea pigs (Cavia porcellus) from commercial family-rearing farms in the district of Chota, Cajamarca, Peru. The study was conducted between August and October 2014. In total, 285 faecal samples were obtained regardless of sex, age and type of guinea pigs in eight communities. The samples were processed using the Sheather technique and the morphometric study of the oocysts was carried out by microscopic observation at 40X using a micrometric eyepiece with a correction factor of 1.64. Oocyst sporulation was induced with 2.5% potassium dichromate. The prevalence of Eimeria spp was 25%. The average of ovoid-shaped oocysts was 17.46 µm long and 17.25 µm wide and for ellipsoidal oocysts it was 23.40 µm long and 17.8 µm wide. The morphometric characteristics indicat...

The aim of this study was to determine the morphological dimensions of adult paramphistomids collected at the local abattoir of Chachapoyas, Amazonas, Peru. The samples were collected in September 2017. Forty adult parasites of uniform size were selected and subjected to oviposition using the Dinnik and modified Dinnik techniques. Thirty eggs were randomly selected. Upon evaluation, the adult parasite in the fresh state has a reddish colour, more intense at the anterior and posterior ends, with a conical and ventrally curved body. The specimens measured 8.85 mm long, 2.27 mm wide, 0.32 mm anterior sucker and 0.60 mm posterior sucker, and the dimensions of the eggs were 126.91 µm long by 63.7 µm wide. The values obtained belong to a parasite of the Paramphistomidae family, compatible with Calicophoron microbothrioides.

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 tomadas 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 en forma aleatoria 30 huevos. A la evaluación, el parásito adulto en estado fresco presentó 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, com...

In the present study, findings regarding parasites discovered in a white-tailed deer, Odocoileus virginianus peruvianus, captured in the dry forest of the Paccha district, Chota province, Cajamarca department, are reported. The Servicio Nacional Forestal y de Fauna Silvestre recovered parasites from an adult male specimen and forwarded them to the Tropical Medicine Research Center at the Universidad Nacional de Cajamarca for taxonomic identification of helminths and arthropods, as well as coproparasitological analysis. Two metacestodes corresponding to Cysticercus tenuicollis were identified. Qualitative coproparasitological analyses revealed Nematodirus spp. eggs at a concentration of 10 eggs per gram of feces (EPG) and 40 EPG of Strongylid type that could not be differentiated due to low counts in the coproculture. No trematode eggs were detected in the sedimentation. Among ectoparasit...

The aim of this study was to determine the efficacy of three frequently drugs used in the treatment of nematodes in guinea pigs at the Baños del Inca Experimental Station of the National Institute of Agricultural Innovation (INIA), Cajamarca. Forty male guinea pigs of the Inka line between 2 to 3 months of age, positive for Trichuris spp and Paraspidodera uncinata, naturally infected, and reared within the same management and feeding system were used. The guinea pigs were homogeneously distributed according to the number of eggs per gram of faeces in 20 positive for Paraspidodera uncinata and 20 for Trichuris spp, distributed in four groups of five each. The treatments were T0: control group, not dosed; T1: fenbendazole 20 mg/kg, PO; T2: oxfendazole 20 mg/kg, PO; and T3: ivermectin 0.5 mg/kg, SQ. The evaluation was carried out by necropsy on day 10 of dosing using the the Randomized Con...

El presente estudio tuvo como objetivo determinar la eficacia de tres principios activos de uso frecuente en el tratamiento de nematodos en cuyes de la Estación Experimental Baños del Inca del Instituto Nacional de Innovación Agropecuaria (INIA), Cajamarca. Se utilizaron 40 cuyes machos de la línea Inka de entre 2 a 3 meses de edad, positivos a Trichuris spp y Paraspidodera uncinata, infectados naturalmente, y criados dentro de un mismo sistema de manejo y alimentación. Los cuyes fueron distribuidos homogéneamente según el número de huevos por gramo de heces en 20 positivos a Paraspidodera uncinata y 20 a Trichuris spp, distribuidos en cuatro grupos de cinco cada uno. Los tratamientos fueron T0: grupo control, no dosificado; T1: fenbendazol 20 mg/kg, PO; T2: oxfendazol 20 mg/kg, PO; y T3: ivermectina 0.5 mg/kg, SQ. La evaluación se realizó mediante necropsia al día 10 de la do...

The present study evaluated the efficacy of fenbendazole, levamisole and ivermectin in the control of nematodes in dairy cattle farms in three provinces of the Cajamarca region, Peru. Thirty female cattle older than six months were selected in each farm (E-I, E-II, E-III), distributed in three homogeneous groups (n=10) according to the natural infection loads of gastrointestinal nematodes. Using an active principle for each treatment, fenbendazole (oral) and levamisole (subcutaneous) were administered at a dose of 7.5 mg/kg and ivermectin at 0.2 mg/kg (subcutaneous). It was determined that in E-I there was therapeutic failure to fenbendazole (70.05 ± 6.57% efficacy) and levamisole (52.08 ± 7.07%) and in E-II to levamisole (65.06 ± 7.25%) and ivermectin (73.96 ± 6.62%). In E-III, levamisole and fenbendazole were effective (99.13 ± 0.98% and 100%, respectively). The larvae obtained af...