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...

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...

El estudio tuvo por objetivo evaluar la eficacia de cuatro antihelmínticos en el control de Fasciola hepatica en la Estación Experimental del Instituto Nacional de Innovación Agraria (INIA), Baños del Inca, Cajamarca, Perú. Se utilizaron 40 cuyes de 5 a 12 meses de edad, de la línea Inka infectados naturalmente con F. hepatica (>1 HPG) no desparasitados en los últimos 4 meses, bajo el mismo sistema de manejo y alimentación. Los cuyes fueron distribuidos en cuatro grupos (n=10): triclabendazol (25 mg/kg), closantel (20 mg/kg) vía oral, clorsulón + ivermectina (15 mg/kg en base a clorsulón) y nitroxinil (50 mg/kg), vía subcutánea. Se determinó la carga parasitaria el día 0 y 30 posdosificación. El Test de Reducción del Conteo de Huevos determinó una eficacia de 0% para triclabendazol y 100% para closantel, clorsulón + ivermectina, y nitroxinil. Se concluye F. hepatica es...

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...

La investigación fue realizada entre mayo del 2016 a noviembre de 2017, con el objetivo de determinar la eficacia del Closantel 10% en el control de Fasciola hepatica con infección natural en bovinos de cuatro establos del valle de Cajamarca, mediante el test de reducción del conteo de huevos (FECRT) y por necropsia en conejos infectados experimentalmente con metacercarias procedentes de cepas de fasciolas de bovinos de los establos evaluados. Se utilizó un grupo de 15 animales por establo, la dosis fue de 10 mg/kg, suministrado vía oral, las heces fueron colectadas directamente del recto aproximadamente 100 g en el día cero y al día 28 posdosificación. Para realizar la prueba por necropsia, se utilizaron 20 conejos de edades entre 4 a 6 meses, criados en cautiverio, alimentados a base de concentrado, zanahoria y panca de choclo. Se formaron dos grupos de conejos homogenizados me...

The present study determined the prevalence of Ehrlichia sp morulae and Hepatozoon sp gamonts in dogs treated at a veterinary medical centre in the city of Trujillo. Blood samples were taken from dogs infested with ticks or exposed in the three months prior to the study. Blood samples (3 mL) were collected from the cephalic vein of 95 dogs in EDTA tubes. The samples were centrifuged. A drop of the phlogistic layer of each sample was placed on a slide, which was extended with a coverslip and subjected to Wright staining. The smears were observed under an optical microscope at 40X and 100X. A prevalence of Ehrlichia sp of 31.6 ± 9.4% was found. No presence of Hepatozoon sp gamonts was observed.

The aim of this study was to determine the prevalence of Fasciola hepática in guinea pigs from 10 communities in the Chota district, Cajamarca region, Peru. In total, 370 faecal samples collected at random from guinea pigs without distinction of age, line, type, breed or sex were analysed by the Lumbreras Rapid Sedimentation Technique. It was found a prevalence of 4.6 ± 2.13% (17/370) of guinea pigs positive to F. hepatica.

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...

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 the evaluate the frequency and morphometric characterization of ectopic Fasciola hepatica in the lung. For this, 2066 lungs of cattle were evaluated in the municipal abattoir of Cajamarca, Peru, between July and August 2018. The lungs presenting macroscopic lesions were reviewed to determine the presence or absence of ectopic Fasciola hepatica. The frequency of erratic pulmonary fasciolosis was 3.68 ± 0.8%. Morphometrically, the ectopic Fasciola hepatica maintains a foliaceous shape, with pale pinkish to grey-brown coloration, measuring 10.36 ± 3.44 mm long and 4.31 ± 0.97 mm wide, and without evidence of oviposition.

The aim of this study was the evaluate the frequency and morphometric characterization of ectopic Fasciola hepatica in the lung. For this, 2066 lungs of cattle were evaluated in the municipal abattoir of Cajamarca, Peru, between July and August 2018. The lungs presenting macroscopic lesions were reviewed to determine the presence or absence of ectopic Fasciola hepatica. The frequency of erratic pulmonary fasciolosis was 3.68 ± 0.8%. Morphometrically, the ectopic Fasciola hepatica maintains a foliaceous shape, with pale pinkish to grey-brown coloration, measuring 10.36 ± 3.44 mm long and 4.31 ± 0.97 mm wide, and without evidence of oviposition.

The study determines the prevalence of trematodes through coproparasitology in grazing dairy cattle in six districts of the Cajamarca region. The analyzes and processing of the faecal samples were carried out by natural sedimentation. The proportion of parasitized animals was 50.4 ± 2.1% (1092/2169), only Fasciola hepatica 32.4 ± 2.0% (703/2169), Calicophoron microbothrioides 17.9 ± 1.6% (389/2169) and coinfection by both parasites was 7.51 ± 1.11% (163/2169). The prevalence by district in Cajamarca was 49.5±5.0% (188/380), Baños del Inca 61.2±5.6% (181/296), La Encañada 80.7±4.1% (284/352), Celendín 45.4±5.0% (171 /377), San Juan 50.0±5.0% (190/380) and Chota 20.3±4.0% (78/384). There was no statistical association in the presence of both trematodes in the animals (p>0.95), nor was a correlation found between the altitude of each district and the presence of faecal eggs ...