Occurrence of paramphistomosis (Trematoda: Digenea) in sheep in northern Peru.

Cajamarca is an important Andean livestock production area located in northern Peru and at the same time endemic in a poorly studied disease known as paramphistomosis. The purpose of this research was to calculate the frequency of paramphistomids in sheep (Ovis aries) slaughtered in the Camal Municipal de Cajamarca, located in the city of Cajamarca. Between the months of February to September 2019, 386 samples of rumen-reticulum were collected that were later classified by age and origin of the animals. Transferred to the laboratory, the stomach contents were emptied; they were examined meticulously and exhaustively in order to find, collect and recognize the parasites adhering to the walls of the compartments. Nineteen samples were positive for Calicophoron microbothrioides in the rumen and none in the reticulum, thus obtaining a frequency of 4.92% in the presentation of paramphistomids in the sampled sheep. According to the origin, the town of Chanta presented a higher frequency with 9.09% and Bambamarca had the lowest frequency with 2.86%. In the age groups, sheep from 2 to 2.5 years old showed a 5.76% presence of paramphistomids and 3.33% of those 4 years old and older were positive. Pearson's correlation coefficient (r = -0.25473762) indicates that there is a low and inversely proportional negative relationship between age and frequency. Finally, with the Chi-square test, no significant difference was obtained between the place of origin and the number of positive cases.

Detección de Metacercarias de Fasciola hepatica en: lechuga, chocho, alfalfa (extracto) y achicoria (extracto), en la ciudad de Cajamarca / Detection of metacercarias of hepatic Fasciola in: lettuce, dotard, alfalfa (I) (summarize) and chicory (I) (summarize), in Cajamarca's city

La investigación se llevó a cabo en la ciudad de Cajamarca entre los meses de abril del 2001 a marzo del 2002 con la finalidad de determinar la presencia de metacercarias de Fasciola hepatica en 450 lechugas, ensalada de chochos (80 muestras), extractos de achicoria (45 muestras) y extractos de alfalfa (45 muestras), los cuales se expenden en esta ciudad; concluyendo que todas las muestras evaluadas mediante la observación microscópica, resultaron negativas a la presencia de metacercarias de Fasciola hepatica.

Prevalencia de parásitos en vísceras precocidas de cerdos en los mercados de expendio en Cajamarca / Prevalence of parasites in entrails precocidas of porks on the markets of expenditure in Cajamarca

La presente investigación fue realizada para determinar formas parasitarias, que se encuentran en vísceras precocidas que se expenden en los mercados de la provincia de Cajamarca. De 35 hígados estudiados se encontraron cuatro (04) fasciolas adultas en canalículos biliares (no viables). En 60 pulmones se encontró treinta y dos (32) Metastrongylus sp adultos no viables. Se analizaron 32 corazones en uno de los cuales se encontró 01 quiste de Cisticerco cellulosae con larva viable. Referente al estudio de 20 kilos de intestino delgado y grueso se encontraron cuarenta y cinco (45) nódulos con formas larvarias de Oesophagostomum dentatun, de los cuales cuarenta y tres (43) nódulos contenían formas larvarias no viables, y dos (2) nódulos con larvas viables.