Se determinaron los valores hematológicos de paiche, Arapaima gigas, en 120 muestras de sangre colectadas entre mayo de 2009 y enero de 2011. Los peces procedían de dos centros de cultivo piscícola de la provincia de Maynas, Loreto, Perú. Las muestras fueron clasificadas de acuerdo al grupo etario: 10-30, 31-180, 181-365 y >365 días. Se obtuvieron valores de recuento de glóbulos rojos y blancos, hematocrito y hemoglobina, así como el recuento diferencial de leucocitos. Los valores de glóbulos rojos y de hemoglobina se incrementaron con la edad (p<0.05).

A retrospective analysis of parasitological test results in fecal samples was done.Samples were analyzed at the Parasitology Laboratory, Faculty of Veterinary Medicineand Animal Science, Universidad Peruana Cayetano Heredia between February 2008and March 2012. Out of 476 samples, 119 (25.0%) were positive to at least one parasitespecies. Among positive samples, 71.5, 20.3 and 8.1% corresponded to protozoa,nematodes and cestodes respectively where the most frequent species were Giardiacanis (37/119) and Isospora spp (37/119).

This study evaluated the presence of bacterial and micotic agents in 120 paiches(Arapaima gigas) in two fish farms in the Peruvian Amazon. Findings included sevenbacterial agents: Pseudomonas spp, Bacillus spp, Staphylococcus spp, Streptococcusspp, Escherichia spp, Aeromonas hydrophila and Corynebacterium spp, and one fungus:Saprolegnia spp.

Haematological values of paiche, Arapaima gigas, were determined in 120 blood samples collected from May 2009 to January 2011. The fishes were cultivated in two fish farms located in the province of Maynas, Loreto, Peru. Blood samples were classified according to four age groups: 10-30, 31-180, 181-365 and >365 days. Data for erythrocyte and leukocyte counts, haemoglobin, haematocrit and differential leukocyte count were obtained. Red cell count and haemoglobin increased with age (p<0.05).

Se analizaron retrospectivamente los resultados de exámenes parasitológicos demuestras fecales de caninos en el Laboratorio de Parasitología de la Facultad de Veterinaria y Zootecnia de la Universidad Peruana Cayetano Heredia, Lima, entre febrero de 2008 y marzo de 2012. De un total de 476 muestras, 119 (25.0%) resultaron positivas para al menos un tipo de parásito. De las muestras positivas, el 71.5, 20.3 y 8.1% correspondieron a protozoos, nematodos y cestodos, respectivamente, siendo las especies de mayor frecuencia Giardia canis (37/119) e Isospora spp (37/119).

Se evaluó la presencia de agentes bacterianos y micóticos en 120 paiches (Arapaimagigas) de dos centros de cultivo de la Amazonía peruana. Se reporta la presencia de siete agentes bacterianos: Pseudomonas spp, Bacillus spp, Staphylococcus spp, Streptococcus spp, Escherichia spp, Aeromonas hydrophila y Corynebacterium spp, y de un hongo: Saprolegnia spp.

The objective of this study was to determine the seroprevalence of Toxoplasma gondii in Vicuñas of Puno. For this purpose, 101 mature vicuña were blood sampled in November 2000. The Indirect Hemoaglutination Test for the detection of antibodies was used. The seroprevalence was 14.9 ± 86% (15/101). The study revealed a low seroprevalence as compared with local findings in alpacas and llamas.

Neospora caninum is a parasite of dogs that causes high rates of abortion and neonatal mortality in cattle throughout the world. The objective of the study was to determine the prevalence of Neospora caninum in dogs from districts of Molinopampa and Leymebamba, province of Chachapoyas, Amazonas. A total of 142 serum samples were evaluated (63 from Molinopampa and 79 from Leymebamba) for the detection of antibodies using the indirect immunofluorescence test (IFAT). The 28.9 ± 7.5% of the animals were positive to N. caninum. A seroprevalence of 34.9 ± 11.8% and 24.1 ± 9.4% were found in dogs of Molinopampa and Leymebamba districts, respectively. This results demonstrate the existence of a high seroprevalence of dogs infected with Neospora caninum in the region.

The aim of the present research was to determine the prevalence of Trypanosoma vivax in cattle of the province of Chachapoyas, located in the tropics of Perú. A total of 270 blood smears from 270 criollos, Holstein, Brown Swiss and Zebu crosses were evaluated. The prevalence of T. viva.x was 1 O.O± 3 .4% (27 /270) without differences between sexes (P>0.05). None of the positive animals showed clinical signs related to trypanosomosis. The study reported for the first time the presence of T. viva.x in the (Chachapoyas province. Further studies in this and other tropical regions using more sensitive techniques are recommended.

The objective of this study was to determine the seroprevalence of Toxoplasma gondii in Vicuñas of Puno. For this purpose, 101 mature vicuña were blood sampled in November 2000. The Indirect Hemoaglutination Test for the detection of antibodies was used. The seroprevalence was 14.9 ± 86% (15/101). The study revealed a low seroprevalence as compared with local findings in alpacas and llamas.

El Neospora caninum, parásito del canino, es ampliamente conocido como causante de abortos y mortalidad neonatal en bovinos a nivel mundial. El objetivo del presente estudio fue determinar la seroprevalencia de N. caninum en caninos de los distritos de Molinopampa y Leymebamba, provincia de Chachapoyas, Amazonas. Se evaluaron 142 sueros de caninos (63 de Molinopampa y 79 de Leymebamba) para la detección de anticuerpos mediante la prueba de Inmufluorescencia Indirecta (IFI). El 28.9 ± 7.5% de los caninos presentaron anticuerpos contra N. caninum. Seroprevalencias de 34.9 ± 11.8% y 24.1 ± 9.4% fueron halladas en caninos de los distritos de Molinopampa y Leymebamaba, respectivamente. Estos resultados demuestran la existencia de una seroprevalencia moderadamente alta de caninos infectados con N. caninum en la región estudiada.

The aim of the present research was to determine the prevalence of Trypanosoma vivax in cattle of the province of Chachapoyas, located in the tropics of Perú. A total of 270 blood smears from 270 criollos, Holstein, Brown Swiss and Zebu crosses were evaluated. The prevalence of T. viva.x was 1 O.O± 3 .4% (27 /270) without differences between sexes (P>0.05). None of the positive animals showed clinical signs related to trypanosomosis. The study reported for the first time the presence of T. viva.x in the (Chachapoyas province. Further studies in this and other tropical regions using more sensitive techniques are recommended.

The research group at the Veterinary Faculty of San Marcos University and Universidad Complutense, Madrid, Spain is involved in an study aiming to determine the presence of antibodies against Neospora caninum in South American camelids and its possible role in abortion. Preliminary data has shown that 42.4% alpacas and 18.4% llamas from small-farmer communities in the highlands of Peru were positives to N. caninum.

El grupo de investigación en la Facultad de Veterinaria de la Universidad de San Marcos y la Universidad Complutense, Madrid, España participa en un estudio con el objetivo de determinar la presencia de anticuerpos contra Neospora caninum en camélidos sudamericanos y su posible papel en el aborto. Los datos preliminares han demostrado que el 42,4% de alpacas y llamas 18,4% de las pequeñas comunidades de agricultores en las tierras altas de Perú fueron positivos a N.caninum.

The objective of this study was to determine the seroprevalence of Toxoplasma gondii in alpacas and lamas from the experimental station of INIA-Puno (Quimsachata), located in the Lampa province, Puno. For this purpose, 200 alpacas and 136 lamas, both male and female, were sampled in June 2000. Blood serum was collected to detect antibodies by the indirect haemaglutination test (IHA). 44.5 ± 6.9% (89/200) of alpaca samples had antibodies. Seroprevalence found in females (56.0 ± 9.7%) was higher than that in males (33.0 ± 9.2%) (p<0.01). Seroprevalence increased with age (p<0.01). The seroprevalence in lamas was 27.9 + 7.5% without differences between sexes, but increasing with age (p<0.01). The results showed a seroprevalence relatively higher in alpacas than in lamas at the INIA-Puno station. It was found that sex is a risk factor for acquiring toxoplasmosis in alpacas, but n...

Se determinó la seroprevalencia del Toxoplasma gondii en alpacas y llamas de la Estación Experimental del INIA-Puno (Quimsachata), ubicada en la provincia de Lampa, Puno. Se recolectó muestras de sangre de 200 alpacas y 136 llamas, entre hembras y machos en junio del 2000, para la detección de anticuerpos en suero mediante el método de hemoaglutinación indirecta (HAI). El 44.5 ± 6.9% (89/200) de las muestras de alpacas presentó anticuerpos, siendo mayor en hembras (56.0 ± 9.7%) que en machos (33.0 ± 9.2%) (p<0.01). La seroprevalencia aumentó en forma significativa con la edad de los animales (p<0.01). La seroprevalencia hallada en llamas fue de 27.9 + 7.5% sin diferencias entre sexos, pero con prevalencias crecientes de acuerdo al grupo etáreo (p<0.01). Los resultados de este estudio demuestran una seroprevalencia más alta en alpacas que en llamas en la Estación de...

Tananta VI, Chávez VA, Casas AE, Suárez AF, Serrano ME. Presence of enteroparasites (Lactuca sativa) in restaurants of Lima downtown. Rev acad. peru cienc vet 2003; 3(1): 31-36. Parasitic diseases are one of the most serious problems in Public Health among the food borne diseases, mainly due to the high morbidity. Enteroparasitic diseases, especially those related to protozoa have a high prevalence in Peru, mostly affecting children and immunosuppressed people through water and food contaminated with infective larvi forms. This purpose of this study was to determine the degree of enteroparasite contamination in raw vegetables that are served in Lima downtown restaurants. A total of 105 lettuce (Lactuca sativa) samples from restaurants specialized in local food, marinated fish (“ceviche”), and roasted chicken were collected. Samples were processed using the sedimentation method and ...

Neosporosis is a parasitic disease caused by the protozoan Neospora caninum, and is associated with high rates of abortion in cattle throughout the world. The aim of the study was to determinate the seroprevalence of N. caninum in dairy cattle reared in the districts of Molinopampa and Leymebamba, Chachapoyas province, Amazonas. The study was carried out in 2002 using 265 serum samples from cows older than 2 years old that belonged to 24 dairy herds. Samples were tested to detect antibodies against N. caninum using the IFAT test. The 40.4 ± 5.0% (107/265) of the samples had antibodies in 1:200 dilution. All sampled herds had at least one seropositive animal. The prevalence of the parasite was similar in both districts and similar to described in herds from other dairy areas in the country.

Tananta VI, Chávez VA, Casas AE, Suárez AF, Serrano ME. Presencia de enteroparásitos en lechuga (Lactuca sativa) en establecimientos de consumo público de alimentos en el Cercado de Lima. Rev acad peru cienc vet 2003; 3(1): 31-36. Las enfermedades parasitarias constituyen uno de los más graves problemas de salud pública dentro de las enfermedades transmitidas por alimentos, principalmente por su alta morbilidad. Las enteroparasitosis y dentro de ellas las producidas por protozoos presen-tan una alta prevalencia en el Perú, afectando mayormente a niños e inmunosuprimidos, a través del agua y alimentos contaminados con las formas parasitarias infectantes. El presente estudio tuvo como objetivo determinar el grado de contaminación por enteroparásitos en verduras crudas expendidas en restaurantes del Cercado de Lima. Se recolectaron 105 muestras de lechuga (Lactuca sativa) de rest...

Neosporosis es una enfermedad parasitaria causada por el protozoo Neospora caninum, y que está asociada con altas tasas de aborto en el ganado bovino a nivel mundial. El objetivo del presente estudio fue conocer la seroprevalencia de N. caninum en bovinos lecheros de crianza extensiva de los distritos de Molinopampa y Leymebamba, provincia de Chachapoyas, Amazonas. Con esta finalidad, en el año 2002 se analizó 265 muestras de sueros de vacas mayores de 2 años, que estaban distribuidas en 24 ganaderías, para la detección de anticuerpos contra N. caninum mediante la prueba de Inmunofluorescencia Indirecta (IFI). El 40.4 ± 5.0% (107/265) de las muestras presentaron anticuerpos en una dilución de 1:200 sin diferencias estadísticas entre los distritos evaluados. Todos los hatos muestreados tuvieron animales seroreactores. La prevalencia encontrada fue similar a lo descrito en las pri...