The aim of this study was to identify the etiological agent of lymphadenitis in guinea pigs from five commercial family breeding farms in Cajamarca, Peru, as well as to determine the sensitivity of the agents found against antibacterial frequently used in the area (amoxicillin, ciprofloxacin, nitrofurantoin, cephalexin, tetracycline, trimethoprim/sulfamethoxazole, and penicillin). Five guinea pigs with clinical signs of lymphadenitis were obtained and samples were taken from the affected cervical lymph nodes. Bacterial isolation was carried out on blood agar and MacConkey agar and the antibiogram was carried out according to the Kirby-Bauer method. The etiological agent was Trueperella pyogenes, highly sensitive to nitrofurantoin and resistant to penicillin.

The aim of this study was to determine the prevalence of trematodes and nematodes through the presence of eggs in faeces of creole donkeys marketed in the Plaza Pecuaria Iscoconga in Cajamarca, Peru. The work was carried out between November and December 2019 with stool samples from 73 donkeys of both sexes. The samples were analysed using the Sedimentation method modified by Rojas and Torrel for the case of trematodes and the Sheather method for the case of nematodes. All samples were positive for at least one species of parasite. The prevalence found were Fasciola hepatica 28.8 ± 10.4% (21/73), paramphistomides 0%; Strongylus spp 53.4 ± 11.4% (39/73), Trichostrongylus spp 46.6 ± 11.4% (34/73), Nematodirus spp 2.7 ± 3.7% (2/73) and Parascaris spp 2.7 ± 3.7% (2/73). It is concluded that the prevalence of parasitosis was 100%; 98.6% corresponding to nematodes, 27.4% to the associatio...

Cajamarca es una de las regiones con mayor población de ganado bovino en Perú y a la vez ha reportado la presencia estomatitis vesicular bovina (EVB). El fin de este estudio fue identificar si los factores individuales y de crianza, factores climatológicos y factores de distribución geográfica y temporal están asociados a la distribución de la EVB en la región de Cajamarca. Se revisaron 259 registros de ocurrencia de la enfermedad registrados en el SENASA, de los cuales 233 fueron positivos. Se identificó al menos un caso de EVB en cada una de las 13 provincias de Cajamarca. Mediante análisis bivariado se identificó que la procedencia, altitud, zona, año, edad, tamaño del hato, crianza junto a otras especies, temperatura y época del año estuvieron asociados a la enfermedad (p<0,05). La regresión logística univariada identificó como factores de riesgo a la provincia San ...

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.

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.

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...

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.

Varroasis is a disease caused by arachnids of the genus Varroa, an obligatory parasite of bees and the cause of high mortality. The present study aimed to report the prevalence of Varroa spp in the apiary of the Fundo Tartar Pecuario of the National University of Cajamarca, Peru and the possible resistance factors associated with the production and temperament of the hives and nuclei. The sampling was carried out in December 2019. The average prevalence of Varroa spp in the four nuclei sampled was 1.62 ± 0.61% and in the three hives it was 1.11 ± 0.5%, being 1.39 ± 0.41% for the apiary. All the nuclei and hives were classified with good production (1 to 2 floors) and in terms of temperament: 1 calm nucleus, 1 aggressive and 2 very aggressive, while the three hives were very aggressive. It is concluded that the quality of being a nucleus or hive does not influence the production or tem...

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...

El presente estudio determina la prevalencia de los huevos de Fasciola hepatica, Calicophoron spp. y la infección mixta en vacunos de crianza al pastoreo de seis poblados ganaderos del distrito de Florida, Amazonas (Perú). Mediante la técnica de sedimentación natural se examinaron 358 muestras fecales. La prevalencia de F. hepatica fue 69.83 % (IC 95% 65.08 – 74.59), seguido de Calicophoron spp. 60.34 % (IC 95% 55.27 – 65.40) y una prevalencia de infección mixta 41.62 % (IC95% 36.51 – 46.73). La presencia de huevos de F. hepatica no tuvo diferencias entre los poblados, las razas y el grupo etario (P>0.05). La presencia de Calicophoron spp. y la infección mixta con F. hepatica presentaron diferencias entre poblados y la raza (P<0.05), a diferencia del grupo etario que fueron similares estadísticamente (P>0.05). Se halló una alta prevalencia de huevos fecales de F. hepatica y...

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...

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...

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 ...