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chagas's disease in the amazon basin: 1. trypanosoma cruzi infections in silvatic mammals, triatomine bugs and man in the state of pará, north brazil.a total of 1,197 wild animals from pará state north brazil, were examined for haematozoa. trypanosoma cruzi-like parasites were found in 13 different species, and were particularly common in a variety of marsupials (didelphidae), porcupines (coendou spp.), armadillos (dasypus novemcinctus) and coatimundis(nasua nasua). three human infections are reported, making a total of seven autochthonous cases of chagas's disease from pará since the first were described in 1969. a serological survey of 5,31 ...1979112730
south american brugian filariasis: report of a human infection acquired in peru.a 27-year-old white woman from new york city acquired an infection by a brugia species while she camped in the amazon basin of peru. she was infected by at least one adult male worm and one gravid female worm. both worms were intact and in a lymphatic vessel of a right cervical lymph node. the lymph node and surrounding fibroadipose tissue contained many microfilariae. the male worm was 50 micron wide and the female, 100 micron. both worms had thin (1 micron) cuticles with fine transverse striat ...19883407837
morphological and morphometrical characterization of gametocytes of hepatozoon procyonis richards, 1961 (protista, apicomplexa) from a brazilian wild procionid nasua nasua and procyon cancrivorus (carnivora, procyonidae).the species hepatozoon procyonis richards, 1961 was described in procyon lotor in the usa and then in other reports in the usa, while in panama h. procyonis has been described in procyon cancrivorus. the objective of this paper is to report the occurrence of this species in the brazilian procionids p. cancrivorus and nasua nausa and to describe the morphology and morphometrics of the gametocytes. the analysis was based on blood smears, stained with giemsa, which were examined under a photonic mi ...200716941187
jatobal virus is a reassortant containing the small rna of oropouche virus.jatobal (jat) virus was isolated in 1985 from a carnivore (nasua nasua) in tucuruí, pará state, brazil and was classified as a distinct member of the simbu serogroup of the bunyavirus genus, family bunyaviridae on the basis of neutralization tests. on the basis of nucleotide sequencing, we have found that the small (s) rna of jat virus is very similar (>95% identity) to that of oropouche (oro) virus, in particular, the peruvian genotype of oro virus. in comparison, limited nucleotide sequencing ...200111451484
delayed hypersensitivity test with paracoccidioidin in captive latin american wild mammals.the aim of this investigation was to study epidemiological aspects of paracoccidioidomycosis, the main endemic systemic mycosis in brazil. this study was carried out using the paracoccidioidin delayed hypersensitivity test in 96 latin american wild mammals, including 49 arboreal animals (primates): 33 cebus apella (weeping-capuchin), 16 callithrix jacchus (marmoset); and 47 terrestrial animals (carnivora): 37 nasua nasua (coatimundi), and 10 felidae [panthera onca (jaguar), felis paradalis (ocel ...19957650577
notes on the coati, nasua nasua (carnivora: procyonidae) in an atlantic forest area.although nasua nasua is broadly distributed geographically and relatively common, it is still little studied. this paper reports observations of coatis in an atlantic forest area, the parque estadual carlos botelho (pecb) in são paulo state, brazil. the social structure of coatis at pecb seems to be the same related in the literature. the mating season appears to be august-september and the pups are born in october-november. coatis are mainly arboreal at the pecb, contrasting with habits reporte ...200212071327
trypanosoma evansi experimental infection in the south american coati (nasua nasua): clinical, parasitological and humoral immune response.the course of trypanosoma evansi infection in coatis (carnivora, procionidae) was followed for 262 days. parasites were detected in all infected animals from day 2 post infection until the end of the study. no correlation between temperature and parasitemia was observed. animals of the infected group demonstrated depression, weakness, lethargy and pale mucous membranes. indirect fluorescent antibody tests detected anti-t. evansi antibodies within 7 to 14 days post infection and showed high level ...200111777600
[ilheus arbovirus in wild birds (sporophila caerulescens and molothrus bonariensis)].to report the first ilheus arboviruses isolated from wild birds and analyze its public health impact.200111359196
homogeneity of trypanosoma evansi isolates from domestic and sylvatic mammals from the pantanal of mato grosso.'mal de cadeiras' is a disease which causes great mortality in horses in the pantanal matogrossense region, brazil. the agent of this disease is trypanosoma evansi, a kinetoplastid flagellate which belongs to the trypanosomatidae family, classified into the salivarian section. transmission occurs mechanically by haematophagous diptera, mainly by stomoxys sp. and tabanus sp. and vampire bats. outbreaks of mal de cadeiras in horses result in economic losses, thus limiting their use in cattle raisi ...200011034443
experimental trypanosoma evansi infection in south american coati (nasua nasua): hematological, biochemical and histopathological changes.the course of an experimental trypanosoma evansi infection in coatis (nasua nasua, carnivora, procyonidae) was followed for 262 days. hematological analysis of the infected coatis revealed a marked decline in hemoglobin, packed-cell volume, and total erythrocyte count. an intense anemia followed the first wave of parasitemia and persisted until the end of the experimental period. biochemical analysis showed increased serum levels of alanine aminotransferase and aspartate aminotransferase and dec ...200211835897
biological and biochemical characterization of isolates of trypanosoma evansi from pantanal of matogrosso--brazil.ten isolates of trypanosoma evansi from the pantanal region of brazil, recently derived from coati (nasua nasua, carnivora, procyonidae), horses and dogs, were characterized on the basis of biological (experimental infections in wistar rats) and biochemical (multilocus enzyme eletrophoresis) data. biological data were analyzed by nested analysis of variance and kruskal-wallis. marked heterogeneity in virulence was observed in the isolates. some of the isolates showed an undulating parasitaemia, ...200010946134
cutaneous leishmaniasis of man due to leishmania (viannia) shawi lainson, de souza, póvoa, ishikawa & silveira, in pará state, brazil.leishmania (viannia) shawi lainson, braga, de souza, póvoa, ishikawa & silveira, 1989, was originally recorded from monkeys (cebus apella and chiropotes satanas), sloths (choloepus didactylus and bradypus tridactylus) and coatis (nasua nasua) and the sandfly, lutzomyia whitmani. with a panel of leishmania specific monoclonal antibodies, it was found that 30.5% of the leishmania strains from patients, who had contracted cutaneous leishmaniasis in pará state, were similar, but not identical to l. ...19911822654
leishmania (viannia) shawi sp. n., a parasite of monkeys, sloths and procyonids in amazonian brazil.leishmania (viannia) shawi sp. n., is described from the monkeys cebus apella and chiropotes satanus, the sloths choloepus didactylus and bradypus tridactylus, the procyonid nasua nasua, and the phlebotomine sandfly lutzomyia whitmani, all from primary forest in the state of pará, north brazil. l. (v.) shawi is variably distinguished from all other known species within the subgenus viannia by a combination of biological, biochemical and serological characters, as revealed by studies on morpholog ...19892504099
vertebrate hosts and vectors of trypanosoma rangeli in the amazon basin of brazil.a total of 46 trypanosoma rangeli stocks were isolated from naturally infected mammals and triatomine vectors. twenty-two stocks were from the common opossum (didelphis marsupialis), one from the brown "4-eyed" opossum (metachirus nudicaudatus), one from the anteater (tamandua tetradactyla), one from the coati (nasua nasua), seven from rhodnius pictipes and 14 from rhodnius robustus. two stocks were also isolated from recently fed sandflies (lutzomyia sp., shannoni group). the stocks were identi ...19836418015
[characterization and antigenic relationship of 3 new bunyaviruses in the group anopheles a (bunyaviridae) of arboviruses].the isolation and characterization of three new viruses obtained from the tucuruí hydroelectric dam region is reported. these three agents belong to the anopheles a serogroup, genus bunyavirus, bunyaviridae. the tucuruí (tuc), caraipé (cpe) and arumateua (art) viruses have close relationships with each other and with trombetas (tbt) virus, an anopheles a virus previously isolated in the amazon region of brazil. these viruses form the "trombetas complex". tuc, cpe and art viruses were obtained fr ...19921342498
epidemiological study of sporotrichosis and histoplasmosis in captive latin american wild mammals, são paulo, brazil.sporotrichosis and histoplasmosis are deep mycosis with a high incidence in human beings in brazil. in domestic animals histoplasmosis has been described only in dogs, but the occurrence of sporotrichosis among domestic animals in brazil has been described in dogs, cats, mules and asses. there is also a case of this disease reported in a chimpanzee (pan troglodites). the purpose of this research was to perform an epidomiological study of these mycoses using delayed hypersensitivity tests (histop ...19948028639
[a new lung fluke from the coastal range of ecuador: paragonimus ecuadoriensis n.sp. (paragonimidae, trematoda) (author's transl)].p. ecuadoriensis in the first lung fluke described from ecuador. the description is based on 10 adult flukes from a natural infected coati (nasua nasua), 23 adults from 2 experimentally infected cats, and 200 metacercariae from the second intermediate host, the freshwater crab hypolobocera aequatorialis. the new species is characterized by the following features: mouth succer larger than acetabulum or nearly of the same size; integument spines ("cuticular" spines) single; ovary with 5-6 short br ...1979483388
host range characteristics of the primate coccidian, isospora arctopitheci rodhain 1933 (protozoa: eimeriidae).studies were conducted on 35 primates, 12 carnivores, and 2 marsupials to determine their susceptibility to the primate coccidian, isospora arctopitheci. patent oocyst infections resulted in 12 of the 14 species of animals investigated. these included 6 genera of new world primates native to panama: saguinus geoffroyi, aotus trivirgatus, ateles fusciceps, cebus capucinus, alouatta villosa, and saimiri sciureus. in addition 4 families of carnivores (2 domestic and 2 sylvatic) and 1 species of mar ...1977403270
[presence of igm antibodies for leptospira interrogans in wild animals from tocantins state, 2002].four hundred and twenty-seven serum samples of wild animals were tested against 18 serovars of leptospira interrogans. of 286 samples of cebus apella, 46 (16.1%) were positive for the serovars pomona, brasiliensis, mini, swajizak, grippotyphosa, sarmin, fluminense, autumnalis, hebdomadis, guaratuba, javanica and icterohaemorrhagiae. of 82 samples of alouatta caraya, 2 (2.4%) were positive for the serovars mangus and fluminense. of 31 samples of nasua nasua, 4 (12.9%) were positive for the serova ...200616906258
[studies on wild reservoirs and vectors of trypanosoma cruzi. xxix. natural infection of nasua nasua solitaria schinz 1821 by t. cruzi]. 19685709122
efficiency of box-traps and leg-hold traps with several bait types for capturing small carnivores (mammalia) in a disturbed area of southeastern brazil.capturing small carnivores is often necessary for obtaining key ecological data. we compared the efficiency of box and leg-hold traps, using live and dead bait, to capture six carnivore species (herpailurus yagouaroundi (e. geoffroyi, 1803), leopardus tigrinus (schreber, 1775), nasua nasua (linnaeus, 1766), cerdocyon thous (linnaeus, 1766), eira barbara (linnaeus, 1758), and galictis cuja (molina, 1782)). the use of leg-hold traps significantly increased the capture rate of carnivores (5.77%) an ...200718457140
on the tryptic peptides from hemoglobin chains of six carnivores.the amino acid compositions of the tryptic peptides of the following carnivore hemoglobin chains have been determined: gray fox (urocyon cineroargenteus); raccoon (procyon lotor); polar bear (thalarctos maritimus); coati mundi (nasua nasua) beta chain; coati mundi (nasua narica) two beta chains; cat (felis catus) alpha chain; and lion (pantbera leo) beta chain. these provide a basis for future sequencing of these hemoglobins and construction of an evolutionary tree. the specific results are summ ...1977864727
oncicola martini sp. n., and other archiacanthocephala of the chaco boreal, paraguay.archiacanthocephalans are reported from mammals of paraguay. oncicola martini sp. n. is described from felis geoffroyi. it is most similar to o. lamasi (freitas et costa 1964) comb. n., differing in having larger hooks, all except the smallest of which are barbed. other species recorded are oncicola oncicola from felis geoffroyi (new host record), o. paracampanulata from felis yagouaroundi, o. luehei from nasua nasua, oligacanthorhynchus microcephala from didelphis albiventris, and o. tortuosa f ...1977864568
the coati (nasua nasua, carnivora, procyonidae) as a reservoir host for the main lineages of trypanosoma cruzi in the pantanal region, brazil.we have focused on the role played by a carnivore, the coati (nasua nasua), in the transmission cycle of trypanosoma cruzi in the brazilian pantanal biome. we collected data during 2000/01 and 2005-07. prevalence and pattern of t. cruzi infection were determined by serological tests and hemoculture. isolates were characterized by miniexon molecular assay. our results demonstrate that t. cruzi transmission cycle among coatis in the southern pantanal seems to be well established, as we found high ...200818541281
isolation of leptospira from wild forest animals in amazonian brazil.the role of wild, forest animals as reservoirs of leptospira was investigated in pará state, north brazil. 696 animals were examined by culture of kidney tissue; isolates of serovar ballum were made from the rodent proechimys sp. and the opossum didelphis marsupialis; leptospires of the serogroups hebdomadis, grippotyphosa and cynopteri were isolated from the armadillo dasypus novemcinctus, and as yet untyped leptospires were isolated from proechimys and the procyonid carnivore nasua nasua. anti ...19846710564
[aujeszky's disease in south american coatis (nasua nasua)]. 19816263241
ticks (acari: ixodida) on wild carnivores in brazil.the present study reports field data of ticks infesting wild carnivores captured from july 1998 to september 2004 in brazil. additional data were obtained from one tick collection and from previous published data of ticks on carnivores in brazil. during field work, a total of 3437 ticks were collected from 89 cerdocyon thous (crab-eating fox), 58 chrysocyon brachyurus (maned wolf), 30 puma concolor (puma), 26 panthera onca (jaguar), 12 procyon cancrivorus (crab-eating raccoon), 4 speothos venati ...200516082932
associations between primates and other mammals in a central amazonian forest landscape.little information exists on mixed-species groups between primates and other mammals in neotropical forests. in this paper, we describe three such associations observed during an extensive large-vertebrate survey in central amazonia, brazil. mixed-species groups between a primate species and another mammal were observed on seven occasions between squirrel monkeys (saimiri cf. ustus) and either south american coatis (nasua nasua) or tayras (eira barbara) and between brown capuchins (cebus apella) ...200818306981
antigenic characterization of trypanosoma evansi using sera from experimentally and naturally infected bovines, equines, dogs, and coatis.the present research investigated the presence of t. evansi antibodies in animals from the subregion of nhecolandia, in the pantanal sul-mato-grossense, by means of an enzyme linked immunosorbent assay (elisa) and indirect immunofluorescence antibody test (ifat), and the pattern of polypeptide recognition by sera from experimentally and naturally infected hosts using western blotting. serum samples were obtained from bovines (n = 102), horses (n = 98), and dogs (n = 55), and from 32 free-ranging ...201020624349
polyspecific associations between squirrel monkeys (saimiri sciureus) and other primates in eastern amazonia.one of the most common types of polyspecific association observed in neotropical primate communities is that between squirrel monkeys (saimiri) and capuchins (cebus). the present study focused on association patterns in two saimiri sciureus groups in eastern brazilian amazonia, between march and october, 2009. the associations were analyzed in terms of the species involved, the degree of association, and niche breadth and overlap. the study involved two s. sciureus groups (b4 and gi) on the righ ...201121809365
habitat use and home range of brown-nosed coati, nasua nasua (carnivora: procyonidae) in the brazilian cerrado biome.the brown-nosed coati (nasua nasua) is a carnivorous species found in all the brazilian biomes, some of which are endangered areas. the aim of this work was to determine the habitat use and selection, home range and core area of n. nasua in the cerrado biome, central region of tocantins, brazil. the study was carried out in an area of approximately 20 000ha from may 2000 to july 2002. a total of seven box traps were placed in the area for 13 months, three of 11 captured animals were followed and ...201020737855
normal aerobic bacterial conjunctival flora in the crab-eating raccoon (procyon cancrivorus) and coati (nasua nasua) housed in captivity in pernambuco and paraiba (northeast, brazil).to determine the normal aerobic bacterial conjunctival population of the coatis and the crab-eating raccoons housed in captivity in the pernambuco and paraiba states of brazil.201020840103
modulating variables of trypanosoma cruzi and trypanosoma evansi transmission in free-ranging coati (nasua nasua) from the brazilian pantanal region.abstract this is a long-term follow-up of infection by trypanosoma cruzi (tc) and trypanosoma evansi (te) in the free-ranging coatis (procyonidae: nasua nasua) from pantanal region (mato grosso do sul, brazil). we evaluated tc and te infection by immunofluorescence assay, hemoculture (hc), and microhematocrit centrifuge techniques (mhct). we also examined coatis health by quantifying hematological parameters including packed cell volume (pcv), white blood cell (wbc) count, and differential leuko ...201021142963
search for mycobacterium leprae in wild mammals.leprosy is still a worldwide public health problem. brazil and india show the highest prevalence rates of the disease. natural infection of armadillos dasypus novemcinctus with mycobacterium leprae has been reported in some regions of the united states. identification of bacilli is difficult, particularly due to its inability to grow in vitro. the use of molecular tools represents a fast and sensitive alternative method for diagnosis of mycobacteriosis. in the present study, the diagnostic metho ...201020428654
mycobacterium kansasii isolation from captive south american coati (nasua nasua).three of six captive south american coatis (nasua nasua) presented with respiratory distress and died despite treatment. postmortem examination performed on two of these animals revealed granulomatous pleuropneumonia associated with acid-fast bacilli. because of the possible diagnosis of mycobacterial infection, the three remaining asymptomatic coatis were anesthetized. tracheal washes were sampled and submitted for microbiology, and the animals were euthanatized and postmortem examinations perf ...201323505720
occurrence and molecular characterization of hemoplasmas in domestic dogs and wild mammals in a brazilian wetland.hemotropic mycoplasmas are known to cause anemia in several mammalian species. the present work aimed to investigate the occurrence of mycoplasma spp. in wild mammals, domestic dogs and their respective ectoparasites, in southern pantanal region, central-western brazil. between august 2013 and march 2015, 31 nasua nasua, 78 cerdocyon thous, seven leopardus pardalis, 42 dogs, 110 wild rodents, and 30 marsupials were trapped and ectoparasites (ticks and fleas) found parasitizing the animals were c ...201728366511
permanent genetic resources added to molecular ecology resources database 1 may 2009-31 july 2009.this article documents the addition of 512 microsatellite marker loci and nine pairs of single nucleotide polymorphism (snp) sequencing primers to the molecular ecology resources database. loci were developed for the following species: alcippe morrisonia morrisonia, bashania fangiana, bashania fargesii, chaetodon vagabundus, colletes floralis, coluber constrictor flaviventris, coptotermes gestroi, crotophaga major, cyprinella lutrensis, danaus plexippus, fagus grandifolia, falco tinnunculus, fle ...200921564933
complexity and multi-factoriality of trypanosoma cruzi sylvatic cycle in coatis, nasua nasua (procyonidae), and triatomine bugs in the brazilian pantanal.trypanosoma cruzi is dispersed in nature through many transmission mechanisms among a high diversity of vectors and mammalian species, representing particular behaviors and habitats. thus, each locality has a unique set of conditions underlying the maintenance of this parasite in the wild. the aim of the present study was to evaluate the life-cycle of t. cruzi in free-ranging coatis from the central region of the brazilian pantanal using a multi-factorial approach.201627370106
co-infection and wild animal health: effects of trypanosomatids and gastrointestinal parasites on coatis of the brazilian pantanal.wild animals are infected by diverse parasites, but how they influence host health is poorly understood. we examined the relationship of trypanosomatids and gastrointestinal parasites with health of wild brown-nosed coatis (nasua nasua) from the brazilian pantanal. we used coati body condition and hematological parameters as response variables in linear models that were compared using an information theoretic approach. predictors were high/low parasitemias by trypanosoma cruzi and t. evansi, and ...201526657699
infestation of arboreal nests of coatis by triatomine species, vectors of trypanosoma cruzi, in a large neotropical wetland.the coati (nasua nasua, carnivora) is a medium-sized mammal common in the pantanal of brazil. unlike most mammals, coatis construct arboreal nests used for resting and reproduction. in this region, the coati is an important host of trypanosoma cruzi, the causative agent of chagas disease. there are two possible routes through coatis can be infected by t. cruzi: the oral route or the vectorial route. however, the relative importance of each of these routes in the infection of coatis and its role ...201526611974
ticks on captive and free-living wild animals in northeastern brazil.from 2005 to 2009, 147 ticks found on 32 wild animals from or referred to two zoobotanical parks (parque zoobotânico arruda câmara and parque estadual dois irmãos) located in northeastern brazil were identified. ticks found on two veterinarians working in one of the parks (i.e., parque estadual dois irmãos), after return from forested areas within the park's territory, were also identified. the following tick-host associations were recorded: amblyomma fuscum neumann on boa constrictor l.; amblyo ...201019693679
food web connections and the transmission cycles of trypanosoma cruzi and trypanosoma evansi (kinetoplastida, trypanosomatidae) in the pantanal region, brazil.we examined by parasitological tests (hemocultures and buffy coat) infection by trypanosoma cruzi and t. evansi in blood samples from leopardus pardalis, cerdocyon thous and domestic dogs. besides, 25 t. cruzi isolates previously derived from feral pigs and small wild mammals were here characterized by miniexon gene and demonstrated to be in the tci genotype. herein, we make an overall analysis of the transmission cycle of both trypanosome species in the light of the assemblage of data collected ...201121600622
the multiple and complex and changeable scenarios of the trypanosoma cruzi transmission cycle in the sylvatic environment.in this study, we report and discuss the results generated from over 20 years of studies of the trypanosoma cruzi sylvatic transmission cycle. our results have uncovered new aspects and reviewed old concepts on issues including reservoirs, true generalist species, association of mammalian species with distinct discrete typing units - dtus, distribution of t. cruzi genotypes in the wild, mixed infections, and t. cruzi transmission ecology. using parasitological and serological tests, we examined ...201526200785
coati (nasua nasua) attacks on humans: case report.coatis [including nasua nasua, the ring-tailed coati], are medium-sized mammals widely distributed in the americas. they are social animals, whose normal diet includes insects, fruits, and small vertebrates, and rarely prey on larger sized animals. there are, to our knowledge, no reports in the medical literature of attacks on humans. this report describes a coati attack on 2 children in their home. the children sustained deep scratches and bites. the animal may have injured the humans in a defe ...201021168789
familiarity breeds progeny: sociality increases reproductive success in adult male ring-tailed coatis (nasua nasua).the ring-tailed coati (nasua nasua) is the only coati species in which social groups contain an adult male year round, although most males live solitarily. we compared reproductive success of group living and solitary adult male coatis to determine the degree to which sociality affects reproductive success. coati mating is highly seasonal and groups of female coatis come into oestrus during the same 1-2 week period. during the mating season, solitary adult males followed groups and fought with t ...201121087218
congenital glycogen storage disease in a south american coati (nasua nasua).a 14-mo-old south american coati (nasua nasua) was submitted for necropsy to the university of kentucky veterinary diagnostic laboratory. the coati had a history of progressive neurologic signs beginning 3 mo prior to euthanasia. at necropsy, the coati was in thin body condition, but no other significant findings were evident. histopathologic findings included moderate distension of neuronal cell bodies by finely vesiculated cytoplasm within the cerebrum, cerebellum, spinal cord, and intestinal ...201324063111
use of two anesthetic combinations for semen collection by electroejaculation from captive coatis (nasua nasua).the objective was to compare the effects of ketamine-xylazine or tiletamine-zolazepam combinations as anesthetic protocols for captive coatis (nasua nasua) for semen collection by electroejaculation. five mature male coatis were physically restrained and then anesthetized by im injections of ketamine (10mg/kg) plus xylazine (1mg/kg) or a tiletamine-zolazepam combination (8 mg/kg). for the two combinations, additional quarter-doses of ketamine or the tiletamine-zolazepam combination were administ ...200919230962
determination of semen characteristics and sperm cell ultrastructure of captive coatis (nasua nasua) collected by electroejaculation.despite the wide geographical distribution of coati (nasua nasua) from the south of canada to the north of argentina, studies regarding the reproductive characteristics of this species are extremely limited. the objective of this study was to describe the various characteristics of coati semen by morphometric and ultrastructural analysis. five mature males were anesthetized and electroejaculated for the collection of semen. semen was immediately evaluated for color, volume, ph, sperm motility, v ...200919097713
illegal wildlife imports more than just animals--baylisascaris procyonis in raccoons (procyon lotor) in norway.in autumn 2011, 11 illegally imported animals were seized from a farm in southern norway. these included four raccoon dogs (nyctereutes procyonoides), four raccoons (procyon lotor), and three south american coatis (nasua nasua), all considered alien species in norway. an additional two raccoons had escaped from the farm prior to seizure. the seized animals were euthanized and postmortem examination revealed that the four raccoons had moderate to high numbers of the zoonotic nematode baylisascari ...201324502726
oral cavity evaluation and dental chart registration of coati (nasua nasua) in captivity.the aims of this study were to develop a dental evaluate any oral cavity disease, develop gypsum models of the dental arches, and to register the occlusions found in coatis (nasua nasua) in captivity formulation of the dental chart was assisted by intraoral radiographs from the head of an adult coati cadaver of the same species with the following dental formula.: i 3/3, c 1/1, p 4/3, m 2/2. seven live coatis of the nasua nasua species were evaluated. five of the seven coatis presented with vario ...200818751661
reciprocity of support in coatis (nasua nasua).primate sociality has received much attention and its complexity has been viewed as a driving force for the evolution of cognitive abilities. improved analytic techniques have allowed primate researchers to reveal intricate social networks based on the exchange of cooperative acts and services. although nonprimates are known to show similar behavior (e.g., cooperative hunting, food sharing, coalitions) there seems a consensus that social life is less complex than in primates. here the authors pr ...200818298277
kinship shapes affiliative social networks but not aggression in ring-tailed coatis.animal groups typically contain individuals with varying degrees of genetic relatedness, and this variation in kinship has a major influence on patterns of aggression and affiliative behaviors. this link between kinship and social behavior underlies socioecological models which have been developed to explain how and why different types of animal societies evolve. we tested if kinship and age-sex class homophily in two groups of ring-tailed coatis (nasua nasua) predicted the network structure of ...201222624010
pyometra and uterine adenocarcinoma in a melengestrol acetate-implanted captive coati (nasua nasua).a 9-yr and 3-mo-old captive female coati (nasua nasua) was implanted with melengestrol acetate for contraception for 4.5 yr prior to presentation. during her annual examination, purulent vaginal discharge and a palpably prominent uterus were identified. ancillary diagnostic tests including hematology, cystocentesis, radiographs, and abdominal ultrasound were consistent with pyometra. an ovariohysterectomy was performed and histologic examination revealed pyometra and uterine adenocarcinoma, simi ...200112790429
phaeochromocytoma in two coatimundi (nasua nasua).two unrelated coatimundi (nasua nasua) had bilaterally enlarged adrenal glands at necropsy, and sections of the glands from both animals had histopathological features consistent with neoplasia. they were differentiated from an adrenal cortical tumour on the basis of their light microscopical morphology, immunoperoxidase staining and electron microscopic studies and a final diagnosis of phaeochromocytoma was made. to the authors' knowledge, these are the first reported cases of phaeochromocytoma ...200111467608
cone photopigments in nocturnal and diurnal procyonids.procyonids are small, new world carnivores distributed among some 6 genera. electroretinogram (erg) flicker photometry was used to measure the spectra of the cone photopigments for members of two nocturnal species, the raccoon (procyon lotor) and the kinkajou (potos flavus), and a diurnal species, the coati (nasua nasua). each of the 3 has a class of cone photopigment with maximum sensitivity in the middle to long wavelengths. the spectral positioning of this cone is different for the three. whe ...19921447724
carnivora: the primary structure of hemoglobin from adult coati (nasua nasua rufa, procyonidae).the complete primary structure of the hemoglobin from the adult coati (nasua nasua rufa) is presented. the erythrocytes contain one hemoglobin component and two globin chains. the isolation of globin chains was achieved by reversed-phase hplc on a column of nucleosil-c4. the primary structures of globin chains and tryptic peptides was determined in liquid- and gas-phase sequenators. the sequence of the alpha and beta-chains of coati compared with those of other carnivora species. results are dis ...19902340073
motor nerve conduction and repetitive nerve stimulation in captive ring-tailed coati (nasua nasua).there are few electrophysiologic studies in wild animals. the aim of this study was to determine normal data for motor nerve conduction studies and repetitive stimulation in sciatic-tibial and ulnar nerves in clinically normal captive coati. eight adult ring-tailed coatis (nasua nasua), two females and six males weighing 6-8 kg, were used. average nerve conduction velocity was 70.81 m/sec (standard deviation [sd] = 3.98) and 56.93 m/ sec (sd = 4.31) for the sciatic-tibial and ulnar nerves, respe ...201223082506
local regulation of pulmonary blood flow and ventilation-perfusion ratios in the coatimundi.small catheters (ca. 3 mm diam at tip) were wedged in subsegmental bronchi in anesthetized coatimundi (nasua nasua) during spontaneous breathing. mixed expired gases of a group of lobules were sampled continuously without contamination from neighboring units, and local tidal volume, frequency, carbon dioxide production, and oxygen consumption were measured, as well as mixed venous po2 and pco2. local ventilation-perfusion ratio, alveolar po2, pco2, and blood flow were calculated. there was a 22% ...19761249000
trypanosoma cruzi infection in neotropical wild carnivores (mammalia: carnivora): at the top of the t. cruzi transmission chain.little is known on the role played by neotropical wild carnivores in the trypanosoma cruzi transmission cycles. we investigated t. cruzi infection in wild carnivores from three sites in brazil through parasitological and serological tests. the seven carnivore species examined were infected by t. cruzi, but high parasitemias detectable by hemoculture were found only in two procyonidae species. genotyping by mini-exon gene, pcr-rflp (1f8/akw21i) and kdna genomic targets revealed that the raccoon ( ...201323861767
serologic survey of brucellosis in captive neotropical wild carnivores in northeast brazil.abstract. this study reports the detection of antibodies against brucella abortus and b. canis in wild neotropical carnivores kept in captivity in three zoos in northeastern brazil. a total of 42 serum samples were examined, 17 from coatis (nasua nasua), eight from crab-eating raccoons (procyon cancrivorus), three from crab-eating foxes (cerdocyon thous), three from hoary foxes (lycalopex vetulus), two from little spotted cats (leopardus tigrinus), five from tayras (eira barbara), two from great ...201222779245
the procyonid social club: comparison of brain volumes in the coatimundi (nasua nasua, n. narica), kinkajou (potos flavus), and raccoon (procyon lotor).the present study investigated whether increased relative brain size, including regional brain volumes, is related to differing behavioral specializations exhibited by three member species of the family procyonidae. procyonid species exhibit continuums of behaviors related to social and physical environmental complexities: the mostly solitary, semiarboreal and highly dexterous raccoons (procyon lotor); the exclusively arboreal kinkajous (potos flavus), which live either alone or in small polyand ...201324107681
normal sonographic anatomy of the abdomen of coatis (nasua nasua linnaeus 1766).the use of ultrasound in veterinary medicine is widespread as a diagnostic supplement in the clinical routine of small animals, but there are few reports in wild animals. the objective of this study was to describe the anatomy, topography and abdominal sonographic features of coatis.201323800301
seasonal variation in serum testosterone, testicular volume and semen characteristics in coatis (nasua nasua).the objective was to characterize seasonal changes in serum testosterone concentration, testicular volume and sperm quantity and quality in captive coatis (nasua nasua) from pantanal, mt, brazil. sampling was done once monthly for 1 y. mean (± sem) serum testosterone concentrations (767.37 ± 216.2 ng/ml) and total and progressive sperm motility (79.6 ± 3.9%; 3.8 ± 0.3, on a scale of 0 to 5) peaked in july. the highest combined testis volume (10.3 ± 0.4 cm(3)) and sperm concentration (403 million ...201222192402
assessment of orchidometry and scrotal circumference in coatis (nasua nasua).this study describes the morphometry of the testicles of captive coatis (nasua nasua) and verifies the existence of correlations between the testicles and the semen producing characteristics. twelve ejaculates were obtained from five adult specimens that were restraint by anaesthesia. visual and morphometric evaluation of the external genitalia was performed by using a caliper. the animals presented a scrotal circumference of 9.4 ± 0.7 cm. the right testicle presented a width of 1.7 ± 0.2 cm, le ...201020210883
an outbreak of tuberculosis by mycobacterium bovis in coatis (nasua nasua).mycobacterium tuberculosis complex, which includes mycobacterium bovis, infrequently causes severe or lethal disease in captive wildlife populations. a dead coati from a wildlife triage center showing pulmonary lesions compatible with tuberculosis had raised suspicion of a potential disease caused by mycobacteria species and was further investigated. four native coatis (nasua nasua) with suspected mycobacterial infection were sedated, and bronchoalveolar lavages and tuberculin skin tests (tsts) ...201222779238
exposure of free-ranging wild carnivores and domestic dogs to canine distemper virus and parvovirus in the cerrado of central brazil.human population growth around protected areas increases the contact between wild and domestic animals, promoting disease transmission between them. this study investigates the exposure of free-ranging wild carnivores and domestic dogs to canine distemper virus (cdv) and parvovirus in emas national park (enp) in the cerrado savanna of central brazil. serum samples were collected from 169 wild carnivores, including the maned wolf (chrysocyon brachyurus), crab-eating fox (cerdocyon thous), hoary f ...201627469023
serological evidence of infection by leishmania (leishmania) infantum (synonym: leishmania (leishmania) chagasi) in free-ranging wild mammals in a nonendemic region of the state of são paulo, brazil.concerns about the interface between wildlife, domestic animals, and humans in the transmission of visceral leishmaniasis (vl) have been growing due to natural or anthropogenic environmental changes. in this context, investigations of the infection in wild mammals are important to assess their exposure to the vector and the parasite. a study of anti-leishmania (leishmania) infantum antibodies was carried out using the direct agglutination test (dat) on 528 free-ranging wild mammals of 38 species ...201526418884
gross and microscopic anatomy of the pineal gland in nasua nasua--coati (linnaeus, 1766).nasua nasua, coati, is a mammal of the carnivora order and procyonidae family. it lives in bands composed of females and young males. the pineal gland or epiphysis of brain is endocrine, producing the melatonin. its function is the control of the cycle of light environment, characteristic of day and night. for this research, five adult coatis were used, originating from cecrimpas-unifeob (proc. ibama 02027.003731/04-76), brazil. the animals were killed and perfusion-fixed in 10% formaldehyde. pi ...200818803633
congenital follicular dysplasia in five related coatimundis (nasua nasua).we report a congenital follicular dysplasia in five coatis from four different litters of the same parents born between 1996 and 2001. these coatis were born apparently alopecic with the entire body covered by very short dark hairs, with secondary lichenification of the skin, crusting and scaling. the main histopathological feature consisted of premature cornification of the cortical cells of the hair shaft. cells were already fully cornified below the adamson's fringe, leading to a disorganized ...200516359311
environmentally associated ticks (acari: ixodidae) in campo grande, mato grosso do sul, brazil.herein, we report tick species found on wild and domestic animals and in the environment during a one-year sampling period at the brazilian farming research company beef cattle unit (embrapa beef cattle), which is located within the urban area of campo grande, mato grosso do sul, brazil. from 55 wild hosts including six different species (nasua nasua, cebus spp., cerdocyon thous, myrmecophaga tridactyla, tamandua tetradactyla and dasyprocta aguti), 323 ticks were collected. amblyomma ovale ticks ...201324252958
carriage of clostridium difficile in free-living south american coati (nasua nasua) in brazil.the objective of this study was to isolate and characterize clostridium difficile strains in stool samples from a wild urban mammal, a south american coati (nasua nasua) in brazil. forty-six free-living n. nasua were trapped, and stool samples were collected. c. difficile was isolated from three (6.5%) sampled animals, two strains were toxigenic (a+b+cdt-, pcr ribotype 014/020 and 106) and one was non toxigenic (a-b-cdt-, pcr ribotype 053). the present work confirms that ring-tailed coati (n. na ...201425263534
isolation and genotyping of clostridium perfringens from free-living south american coati (nasua nasua).the importance of clostridium perfringens for most wild animal species remains unclear. this study aimed to isolate and genotype c. perfringens in stool samples from free-living south american coati (nasua nasua) in brazil. forty-six free-living n. nasua were trapped and stool samples were collected. two different protocols for c. perfringens isolation were tested: direct plating onto selective agar and pre-enrichment in broth followed by plating in selective agar. clostridium perfringens type a ...201627010297
identification of encephalitozoon and enterocytozoon (microsporidia) spores in stool and urine samples obtained from free-living south american coatis (nasua nasua).this study emphasizes the importance of free-living coatis as a potential source of microsporidian infection for humans living in large cities. we found 19 (31.7%) positive results among 60 fecal samples analyzed by pcr-based analysis and the gram-chromotrope staining technique (11.7% were positive for encephalitozoon cuniculi, 6.7% for e. intestinalis, 6.7% for e. hellem, and 6.7% for enterocytozoon bieneusi). only 5 (8.4%) urine samples tested positive for e. cuniculi as assessed by the two te ...201222522676
seroprevalence of trypanosoma evansi infection in capybaras (hydrochoerus hydrochaeris) from a nonendemic area in brazil.in south america, capybaras (hydrochoerus hydrochaeris) as well as coatis (nasua nasua) are the reservoir hosts of trypanosoma evansi. capybaras from a t. evansi nonendemic area in the state of são paulo, southeastern brazil, were culled because of an ongoing outbreak of brazilian spotted fever; serum samples from these capybaras were tested for antibodies to t. evansi. of the 172 sera tested, 17 (9.9%) were seropositive by card agglutination test, with antibody titers of 1:8-1:128; 14 (8.1%) of ...201626965238
coati bodies: cytoplasmic hyaline globules in the ganglionic neurons of aging captive coatis.intensely eosinophilic and glassy intracytoplasmic inclusions were present in the neurons of the peripheral autonomic ganglia, meissner's and auerbach's plexus, and spinal ganglia in 20 aged white-nosed coatis ( nasua narica, 7-19 years old) and in 4 of 7 brown-nosed coatis ( nasua nasua, 2-21 years old) from multiple zoological institutions. inclusions were single to numerous, sometimes distorting the cell. pheochromocytomas were present in 5 of 16 white-nosed and 2 of 6 brown-nosed coatis, alt ...201728578627
morphometry, morphology and ultrastructure of ring-tailed coati sperm (nasua nasua linnaeus, 1766).the ring-tailed coati (nasua nasua) is a procyonid whose population is in sharp decline. therefore, studies are needed to better understand the reproduction of this animal. for this reason, this study aimed to evaluate the morphology, morphometry and sperm ultrastructure of ring-tailed coati sperm. four captive adult males were used for this study. slides stained with bengal rose were used for the morphometric and morphologic analyses. the length and width of the head were measured, as well as t ...201526446691
tyrptic peptide compositions of hemoglobins from mink (mustela vison) and hyena (hyaenae hyaenae) and the alpha-chain of coatimundi (nasua nasua).the amino acid composition of the tryptic peptides from hyena hemoglobin, two hemoglobins of the mink and the alpha-chain of coatimundi have been determined, allowing comparison with data previously obtained from other carnivores. the two hemoglobins of mink differ at only one amino acid residue, alpha 15, which is glycyl in one hemoblobin and aspartyl in the other.1979500372
niche partitioning among mesocarnivores in a brazilian wetland.we investigated the home range size, habitat selection, as well as the spatial and activity overlap, of four mid-sized carnivore species in the central pantanal, mato grosso do sul, brazil. from december 2005 to september 2008, seven crab-eating foxes cerdocyon thous, seven brown-nosed coatis nasua nasua, and six ocelots leopardus pardalis were radio-collared and monitored. camera trap data on these species were also collected for the crab-eating raccoon procyon cancrivorus. we hypothesized that ...201727685854
detection of wild animals as carriers of leptospira by pcr in the pantanal biome, brazil.leptospiral infection is widespread in wildlife. in this context, wild ecosystems in tropical countries hold a vast biodiversity, including several species that may act as potential reservoirs of leptospires. the pantanal biome presents highly favorable environmental conditions for the occurrence of leptospirosis, such as high temperatures, constant flooding, and high biodiversity. the purpose of this study was to detect wild animals as carriers of leptospira sp. using direct methods (pcr and cu ...201627496621
chemical restraint of free-ranging south american coatis ( nasua nasua ) with a combination of tiletamine and zolazepam.we describe the use of a combination of tiletamine and zolazepam (zoletil®) for chemical restraint of south american coatis ( nasua nasua ) under field conditions. we immobilized 53 coatis from a free-ranging population at iguaçu national park, brazil, with zoletil. males and females (1.0-8.7 kg) of different age groups participated in the study. four dosage (milligram per kilogram body weight) groups were created based on quartiles as follows: 1) 4.76-6.68 mg/kg (n=13), 2) 6.83-7.71 mg/kg (n=13 ...201727705101
molecular detection of hepatozoon spp. in domestic dogs and wild mammals in southern pantanal, brazil with implications in the transmission route.hepatozoon parasites comprise intracellular apicomplexan parasites transmitted to vertebrate animals by ingestion of arthropods definitive hosts. the present work aimed to investigate the occurrence of hepatozoon spp. in wild animals, domestic dogs and their respective ectoparasites, in southern pantanal region, central-western brazil, by molecular techniques. between august 2013 and march 2015, 31 coatis (nasua nasua), 78 crab-eating foxes (cerdocyon thous), seven ocelots (leopardus pardalis), ...201728291601
placentation and fetal membrane development in the south american coati, nasua nasua (mammalia, carnivora, procyonidae).placental research in carnivores has concentrated on domestic species, which have zonary, labyrinthine placentas with an endotheliochorial barrier. although the coati, nasua nasua, is a widely distributed species in south america, data on the development of the placenta and the fetal membranes in this species are very sparse.201424969476
late pleistocene carnivores (carnivora: mammalia) from a cave sedimentary deposit in northern brazil.the brazilian quaternary terrestrial carnivora are represented by the following families: canidae, felidae, ursidae, procyonidae mephitidae and mustelidae. their recent evolutionary history in south america is associated with the uplift of the panamanian isthmus, and which enabled the great american biotic interchange (gabi). here we present new fossil records of carnivora found in a cave in aurora do tocantins, tocantins, northern brazil. a stratigraphical controlled collection in the sedimenta ...201425590705
late pleistocene carnivores (carnivora: mammalia) from a cave sedimentary deposit in northern brazil.the brazilian quaternary terrestrial carnivora are represented by the following families: canidae, felidae, ursidae, procyonidae mephitidae and mustelidae. their recent evolutionary history in south america is associated with the uplift of the panamanian isthmus, and which enabled the great american biotic interchange (gabi). here we present new fossil records of carnivora found in a cave in aurora do tocantins, tocantins, northern brazil. a stratigraphical controlled collection in the sedimenta ...201425424041
assessment of mammal reproduction for hunting sustainability through community-based sampling of species in the wild.wildlife subsistence hunting is a major source of protein for tropical rural populations and a prominent conservation issue. the intrinsic rate of natural increase. (rmax ) of populations is a key reproductive parameter in the most used assessments of hunting sustainability. however, researchers face severe difficulties in obtaining reproductive data in the wild, so these assessments often rely on classic reproductive rates calculated mostly from studies of captive animals conducted 30 years ago ...201627917537
image-based red cell counting for wild animals blood.an image-based red blood cell (rbc) automatic counting system is presented for wild animals blood analysis. images with 2048×1536-pixel resolution acquired on an optical microscope using neubauer chambers are used to evaluate rbc counting for three animal species (leopardus pardalis, cebus apella and nasua nasua) and the error found using the proposed method is similar to that obtained for inter observer visual counting method, i.e., around 10%. smaller errors (e.g., 3%) can be obtained in regio ...201021096766
microscopic and molecular identification of hemotropic mycoplasmas in south american coatis (nasua nasua).hemoplasmas were detected in two apparently healthy captive south american coatis (nasua nasua) from southern brazil during an investigation for vector-borne pathogens. blood was subjected to packed cell volume (pcv) determination, a commercial real-time pcr panel for the detection of anaplasma spp., babesia spp., bartonella spp., hepatozoon spp., leishmania spp., mycoplasma haemofelis, 'candidatus mycoplasma turicensis', 'candidatus mycoplasma haemominutum', neorickettsia risticii, rickettsia r ...201728750863
atlantic-camtraps: a dataset of medium and large terrestrial mammal communities in the atlantic forest of south america.our understanding of mammal ecology has always been hindered by the difficulties of observing species in closed tropical forests. camera trapping has become a major advance for monitoring terrestrial mammals in biodiversity rich ecosystems. here we compiled one of the largest datasets of inventories of terrestrial mammal communities for the neotropical region based on camera trapping studies. the dataset comprises 170 surveys of medium to large terrestrial mammals using camera traps conducted in ...201728857166
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