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1
artículo
Publicado 1974
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In the present work on helminths parasites of Bufo spinulosus Trifolium (Tschudi) from Huanuco, we found two species, one of they is a new report to Peru.
2
artículo
Publicado 2025
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El objetivo del presente estudio fue identificar las poblaciones y prevalencia de parásitos gastrointestinales en bovinos del departamento de Arauca, Colombia, categorizados por grupo etario Se procesaron 1351 muestras de materia fecal de bovinos doble propósito. Las prevalencias de parásitos gastrointestinales fueron de 54% para Neospora caninum, 51% para Haemonchus sp, 45% para Ostertagia ostertagi, 32% para Trichostrongylus sp, 22% para Cooperia sp, 7% para Eimeria sp, 6% para Oesophagostomumsp, 3% para Nematodirus sp, 2% para Strongyloides sp y 1% para Ascaris suum, Bunostomum sp y Moniezia benedeni (1%).
3
artículo
In this paper, Dipetalonema graciliformis Freitas, 1964 parasite of Saguinus labiatus; Evaginuris branickii (McClure, 1932) Quentin, 1973 of Dinomys branickii, Alaeuris caudatus (Lent & Freitas, 1948) of Iguana iguana and Serpinema amazonicus of Podocnemis expansa are recorded for the first time. Also, Saguinus labiatus is considered as new host for Dipetalonema graciliformis.
4
artículo
In this paper, Dipetalonema graciliformis Freitas, 1964 parasite of Saguinus labiatus; Evaginuris branickii (McClure, 1932) Quentin, 1973 of Dinomys branickii, Alaeuris caudatus (Lent & Freitas, 1948) of Iguana iguana and Serpinema amazonicus of Podocnemis expansa are recorded for the first time. Also, Saguinus labiatus is considered as new host for Dipetalonema graciliformis.
5
artículo
This study was carried out in 120 paiches (Arapaima gigas) distributed in four age groups (10 to 30, 31 to 180, 181 to 365 days and >1 year of age) from fish farms in the Peruvian Amazon to determine the prevalence and the affected organs. Eight parasite species are reported: monogeneans (Dawestrema cycloancistrium and D. cycloancistrioides), digeneans (Caballerotrema brasiliense), protozoa (Piscinodinium pillulare, Ichthyophthirius multifiliis and Trichodina sp), cestodes (Schizochoerus liguloides), and nematodes (Nilonema senticosum). The prevalence of parasitism was 0, 66.7, 90.0 and 66.7% for the age groups 10-30, 31-180, 181-365 days and >1 year of age, respectively.
6
artículo
Publicado 2023
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The endoparasitic fauna of four mammal species was analyzed: Puma concolor (Linnaeus, 1771) (cougar), Lycalopex gymnocercus (Fischer, 1814) (grey fox), Myocastor coypus (Molina 1782) (coipus) and Tolypeutes matacus (Linnaeus, 1758) (armadillo). These specimens entered the Center for Wildlife Rehabilitation, Environmental Education and Responsible Recreation located in the province of San Juan, Argentina. Out of the four mammal species, three died on the spot. The necropsy of L. gymnocercus, M. coypus and T. matacus was carried out, and it was evidenced the presence of three species of parasitic nematodes: Physaloptera clausa Rudolphi, 1819 (Physalopteridae) in L. gymnocercus; Trichuris myocastoris Enigk, 1933 (Trichuridae) in M. coypus; and adult females of Aspidodera sp. Railliet & Henry, 1912 in T. matacus. Regarding P. concolor, the expulsion of nematodes was orally, determining t...
7
artículo
Publicado 2023
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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...
8
artículo
El Síndrome de intestino irritable (SII) es un desorden gastrointestinal funcional de etiología incierta. Muchos estudios han propuesto que los parásitos intestinales pueden tener un rol en la patogénesis del SII. Se sintetizó estudios epidemiológicos que describen una relación posible entre el parasitismo intestinal y el SII, con especial interés en aquellos estudios que fueron realizados en zonas endémicas para dichos organismos. Se realizó una revisión extensa de la literatura por medio de las siguientes palabras clave: síndrome de intestino irritable; parásitos intestinales; protozoarios; helmintos y Sud-América. Giardia lamblia puede causar síntomas similares al SII que pueden persistir por muchos años, después de tratamiento efectivo. Dientamoeba fragilis puede causar un cuadro similar al SII, pero al emplearse técnicas de baja sensibilidad, se puede fallar en det...
9
artículo
Publicado 2017
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Branchiurans are parasites from the buccal cavity, gills, skin, and fins of various fish species. The Neotropical region has one of the highest diversity of branchiurans. On Arapaima gigas, only four species of branchiurans have been reported. The present study improves the knowledge on host and geographical range of Dolops striata. Fish were collected from a fish farm in the State of Pará, Brazil. All A. gigas were parasitized by Dolops striata, which were collected from the fins and body surface. This is the first record of D. striata in A. gigas. The high prevalence detected warns the possibility of an increase in the number of D. striata infesting A. gigas, which may cause some problems for fish-farmers.
10
artículo
Publicado 2013
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In order to determine the prevalence of Toxocara canis Werner, 1782, Ancylostoma caninum Ercolani, 1859 and Isospora canis Nemeseri, 1959 in street dogs at the Bogota Zoonosis Animal Shelter, seventy pooled fecal samples from cage floors were collected. Each pooled sample corresponded to one of 11 localities since the dogs were caged according to locality. Three serial samplings were performed. Each pooled sample was evaluated macroscopically and microscopically using qualitative and quantitative parasitological techniques to determine the presence of helminth eggs or oocysts. A total of 88,57% (n= 62) of the samples were parasite positive: 52,9% were positive for A. caninum; 7,1% for T. canis; 24,3% showed mixed infections of A. caninum and T. canis, 1,43% were positive for A. caninum, T. canis and I. canis and 2,9% were infected by A. caninum and I. canis. The pooled fecal samples from...
11
artículo
Publicado 2013
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Paranthias colonus(Valenciennes, 1846) is used as fish bait replacing first class fish that have been overfished in the Gulf of California. Due to its recent commercial importance, the parasite fauna of P. colonusfrom of El Sargento, Baja California Sur, Mexico is characterized to define its role in the life cycle of its parasites. 30 fishes were fixed in 4% formaldehyde for later examination. Helminths and copepods were treated with conventional techniques specific to each kind of parasite. P. colonushad 100% prevalence and 46.5 mean intensity of parasites. Adults of Pseudorhabdosynochus sp., Prodistomum orientalis, Brachyphallus sp., Lecithochirium sp., Spinitectus sp., Caligus sp., Pandaridae, and Hatschekia sp. and larevae of Tetragonocephalidae, Scolex pleuronectis and Anisakis sp. were found. There was evidence of host specificity of Pseudorhabdosynochussp. and Hatschekiasp. by ser...
12
artículo
Publicado 2024
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The aim of this study was to register for the first time parasitism by Hepatozoon (Miller, 1908) in two species of bufonid anurans in areas of the Caatinga in Brazil, and to present morphometric analysis on the parasites and parasitized erythrocytes. During helminthological studies on anurans from the Brazilian Caatinga in 2019, blood smears of three specimens Rhinella diptycha (Cope, 1862) and three of Rhinella granulosa (Spix, 1824) in the municipality of Petrolina, state of Pernambuco, Brazil were analyzed. To make blood smears, blood samples were collected intracardiacally or through puncturing the ventral abdominal vein. The smears were analyzed under a light microscope at 1000x magnification. Morphometric dimensions of host cells and parasites were measured. The only parasite forms encountered in the blood of the two anuran species were intraerythrocytic gametocytes of Hepatozoon s...
13
artículo
Publicado 2020
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Presence of the genus Neoparasitylenchus Nickle, 1967 (Tylenchida, Allantonematidae), parasitizing Harmonia axyridis (Pallas, 1773) (Coleoptera, Coccinellidae) in Argentina. We describe a new species Neoparasitylenchus platense sp. n., which is characterized by having the free living stages lip region flatly rounded, spear slender, faintly knobbed, tail rounded, females with light brown body, stylet not sunken into body, and not prominent, subterminal vulva and anus, obtusely rounded tail end, with a peg-like projection, oviparous, and the males with a little stylet and partially degenerate oesophagus, spicules filiform with widened base, short gubernaculum, leptodera bursa. ________________________________________________________________Publicación registrada en Zoobank/ZooBank article registered:LSIDurn:lsid:zoobank.org:pub:FBE9DC98-04C4-4074-9037-1F5979320E2FActo nomenclatural/nomenc...
14
artículo
Publicado 2006
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Many Amazonian animals are a valuable food source, for the rural and urban people of the Peruvian forest. Their meat is called carne de monte, and is the third source of protein food in the region. Podocnemis unifilis (Yellow-spotted Amazon River turtle or taricaya) is utilized for both its meat and eggs. The efforts for restocking this reptile through breeding in semicaptivity and captivity, has allowed increasing the population, and now they are abundant. However, the breeding process had not taken into account the sanitary aspect, and this information is barely known in Peru. With the objective of identifying the parasitic fauna of the taricaya, the digestive tracts of 12 females (2 adults, 10 young) captured in the Pacaya Samiria National Reserve where examined. Different grades of parasitic infection were found in all turtles investigated. The parasites identified were the nematodes...
15
artículo
Publicado 2021
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Flathead mullet Mugil cephalus Linnaeus, 1758 (Mugilidae) is a carnivore benthopelagic fish of the central coast from Peru. We research some community components of parasitofauna of 74 M. cephalus acquired from Chorrillos Fishmarket, Lima, Peru, between August and December 2008. We necropsy fishes with aim to characterize parasite community, evaluate influence of length and sex of host on its main helminths and crustacean parasites and in addition some diversity patterns on ecology of communities and gill co-occurrence of ectoparasites more prevalents. Fishes showed a total length mean of 31,4 ± 2,7 cm. Mean abundance of infection and mean parasite species richness was 2.3 (0-32) and 0.79 (1-3), respectively. Thirty hosts were not parasited (40.5 %). Infection, with 1, 2 and 3 species of parasites were 32 (43.2 %), 9 (12.2 %) and 3 (4.1 %), respectively. Three ectoparasites were found: ...
16
artículo
Publicado 2008
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Quantitative aspects of parasite communities of marine macrozoobenthonic crabs, as burrowing shrimpCallichirus seilacheri (Bott 1955) was not registered in South Pacific and Peru. For this reason, influence of size and sex of C. seilacheri, and evaluated period on its metazoan parasites was analyzed. Between November 1996 and January 2008, 1044 C. seilacheri acquired from Chorrillos, Lima, Peru, and necropsied to study their metazoan parasite. Of the burrowing shrimp collected, 571 were males and 473 females. Total length host mean was 10.62 ± 2.91 cm. Metazoan parasites were collected and registered employing standard procedures. Outer body surface, gill chamber, hemocoel, gut and hepatopancreas were examined. None parasite have three hundred forty and seven hosts. Showed infection with 1 parasite species, five hundred fifty and two hosts (52.9%), and with 2 parasite species forty-five...
17
artículo
Publicado 2001
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The goal of this research was to increase the knowledge of two parasitic protozoa: Herpetomonas muscarum (Leidy, 1856) Ken, 1880 and Octosporea muscaedomesticae Flu, 1911, in Musca domestica. Both represent new records in Peru. The H. muscarum leptomonad are 36 µ long and are larger than the ones cited by other authors. O. muscadomesticae presents large and plasmodial forms slightly larger than the ones studied by Bulnheim & Vávra (1998). In the M. domestica group surveyed, we determined a significant percentage of H. muscarum (54,0%) and O. muscadomesticae (27,0%).
18
artículo
Publicado 2012
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Thirty-four adults of Physalaemus albonotatus (20 males and 14 females) were collected near the city of Corrientes, Province of Corrientes, Argentina (27°28'S - 58°50'W) between January 2001 and September 2004. Adults of four nematode species, Strongyloides sp., Oswaldocruzia sp., Cosmocerca podicipinus, Cosmocerca parva and larvae of two other species, Spiroxys sp. and Physaloptera sp. were recovered from the digestive tract, lungs and gastric mucosa. We present morphologic characters (some with scanning electron microscopy), morphometric information and range extensions for these nematode species. This is the first report of nematode parasites of P. albonotatus from Argentina.
19
artículo
Publicado 2001
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The goal of this research was to increase the knowledge of two parasitic protozoa: Herpetomonas muscarum (Leidy, 1856) Ken, 1880 and Octosporea muscaedomesticae Flu, 1911, in Musca domestica. Both represent new records in Peru. The H. muscarum leptomonad are 36 µ long and are larger than the ones cited by other authors. O. muscadomesticae presents large and plasmodial forms slightly larger than the ones studied by Bulnheim & Vávra (1998). In the M. domestica group surveyed, we determined a significant percentage of H. muscarum (54,0%) and O. muscadomesticae (27,0%).
20
artículo
Publicado 2014
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Thunnus atlanticus is of great commercial importance in Brazil, but infections caused by helminth parasites can reduce its commercial value. In this paper, 15 species of Digenea and three of Monogenoidea were recovered from 61 specimens of T. atlanticus collected from the coastal zone of the State of Rio de Janeiro. Species of the family Didymozoidae were the dominant species, with highest prevalence and abundance values. The parasites showed the typical aggregated distribution pattern, except for Nasicola brasiliensis, which had an aleatory distribution pattern. Prevalence and abundance of Didymosulcus philobranchiarca, Didymocystis lamotheargumedoi and Didymosulcus wedli and prevalence of Koellikerioides internogastricus were positively correlated with the total length of the host. The abundance of Coeliotrema thynni was negatively correlated with total length of the host. New hosts re...
