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Ciências Biológicas.

Moscati, Giorgio; Magalhaes, Luiz Edmundo de
Fonte: CNPq/Coordenação Editorial; Brasília Publicador: CNPq/Coordenação Editorial; Brasília
Tipo: Parte de Livro
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Para elaboração do documento Avaliação e Perspectivas, da área de Ciências Biológicas, foram consideradas onze subáreas: Bioquímica e Biofísica; Botânica; Ecologia; Farmacologia e Farmácia; Fisiologia; Genética; Imunologia; Microbiologia; Morfologia; Parasitologia; Zoologia. Para cada subárea foi escolhido um ou dois redatores entre nomes de pesquisadores sugeridos pelos Comitês Assessores do CNPq, das respectivas subáreas; depois designados oficialmente pelos órgãos superiores do CNPq. Aos redatores foi solicitada a preparação de um documento que apresentasse, basicamente, o campo de conhecimento compreendido pela subárea e um pequeno histórico do seu desenvolvimento científico no Brasil, os resultados do levantamento dos dados relativos às atividades de pós-graduação e pesquisa no biênio 1979-1981. Foi pedida também uma avaliação do desenvolvimento científico da subárea no exterior e um confronto com o seu estado atual no Brasil e paralelamente que se discutissem as estratégias de desenvolvimento de cada subárea e fossem apontados os principais fatores limitantes ao seu desenvolvimento. Finalmente foi solicitado que o documento apresentasse indicações das principais linhas de pesquisa que deverão ser desenvolvidas no futuro e quais as medidas de caráter geral que deverão ser adotadas para facilitar o desenvolvimento da subárea ou da ciência em geral no Brasil. Não obstante essas solicitações...

Potencial larvicida de extratos de plantas regionais no controle de larvas de Aedes aegypti

Medeiros, Viviane Ferreira de
Fonte: Universidade Federal do Rio Grande do Norte; BR; UFRN; Programa de Pós-Graduação em Ciências Biológicas; Biodiversidade; Biologia Estrutural e Funcional. Publicador: Universidade Federal do Rio Grande do Norte; BR; UFRN; Programa de Pós-Graduação em Ciências Biológicas; Biodiversidade; Biologia Estrutural e Funcional.
Tipo: Dissertação Formato: application/pdf
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Dengue, amongst the virus illnesses one can get by vectorial transmission, is the one that causes more impact in the morbidity and mortality of world s population. The resistance to the insecticides has caused difficulties to control of vector insect (Aedes aegypti) and has stimulated a search for vegetables with larvicidal activity. The biodiversity of Caatinga is barely known and it is potential of use even less. Some plants of this biome are commercialized in free fairs northeast of Brazil, because of its phytotherapics properties. The vegetables in this study had been selected by means of a questionnaire applied between grass salesmen and natives of the Serido region from Rio Grande do Norte state; culicids eggs had been acquired with traps and placed in container with water for the larva birth. Thirty larvae had been used in each group (a group control and five experimental groups), with four repetitions four times. The vegetables had been submitted to the processes of decoction, infusion and maceration in the standard concentration of 100g of the vegetable of study in 1l of H2O and analyzed after ½, 1, 2, 4, 8, 12, 24 and 48 hours for verification of the average lethal dose (LD50) from the groups with thirty larva. The LD50 was analyzed in different concentrations (50g/l...

Helmintos e ??caros nasais parasitos de Pitangus sulphuratus (Passeriformes: Tyrannidae), bem-te-vi, no Rio Grande do Sul; Helminths and nasal mites parasites of Pitangus sulphuratus, Great Kiskadee, (Passeriformes: Tyrannidae) in Rio Grande do Sul

MENDES, Mariana de Moura
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
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The Great Kiskadee, Pitangus sulphuratus (Linnaeus, 1766) (Tyrannidae), occurs only in the Americas, is distributed from the United States (Texas) to Argentina. It is the most popular bird species of Brazil and Rio Grande do Sul, being easily recognized by its onomatopoeic song, vivid colorations and aggressive behavior in a dispute over territory and when guarding the nest. These birds can be found in a wide variety of habitats such as crop fields, towns, orchards, woods and edge of aquatic environments, such as margins of ponds, streams, rivers and dams. They have skills to identify foods in natural environments and exploring food resources of anthropic origin, which contributes to its efficiency in colonizing urban environments and their abundance in various environments. The Great Kiskadee can be considered an omnivorous species, and its flexibility in their food can influence their helminthofauna, since the majority of gastrointestinal parasites are acquired through ingestion of food. Due to lack of information on parasite biodiversity of P. sulphuratus, this work was developed aimed to characterize and disseminate the helminthofauna and nasal mites that parasites the Great Kiskadee, and to calculate the parameters of prevalence...

Avalia????o de diferentes extratos enzim??ticos f??ngicos sobre ovos de Ancylostoma spp; Evaluation of different fungal enzyme extract of eggs of ANCYLOSTOMA spp

HOFSTATTER, Bianca Delgado Menezes
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
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The role of companion animals or pets as zoonotic disease reservoirs has been recognized as a significant public health hazard throughout the world. Ancylostoma caninum and A. braziliense are zoonotic parasites which are transmitted to man through contact with soil contaminated with both eggs and larvae of these ancylostomids. The considerable prevalence of environmental contamination by Ancylostoma spp eggs, together with the difficulties of applying control measures and soil disinfection, as well as the development of resistance to anthelmintic therapy, highlights the need for alternative methods to help control these helminths. Taking into account that these nematodes spend part of their life cycle in the soil and that nematophagous fungi usually found in this ecosystem establish parasitic or predatory relationships with these parasites, thus playing an important role as natural enemies, the use of these agents in the effective control of nematodes is viable and desirable. Thus, nematophageous fungi can be used when the environment is already contaminated. This study aimed to determine helminth prevalence in dog feces collected on streets and parks in Pelotas County, Rio Grande do Sul State, Brazil, as well as to evaluate the in vitro ovicidal activity of different crude enzymatic extract preparations of CG193 and MICLAB 009 Paecilomyces lilacinus...

Preval??ncia de enteroparasitos em crian??as hospitalizadas em Pelotas, Rio Grande do Sul, Brasil; Prevalence of enteric parasite infections among hospitalized children in the municipality of Pelotas, state of Rio Grande do Sul, Brazil

Almeida, Isis Almeida de
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
66.1%
Intestinal parasite infections are diseases caused by protozoa and helminth groups. They are common in developing countries and are the most frequent diseases especially among children. Although it is known that hospitalized children may be more susceptible to intestinal parasites, because they are usually neglected, few studies describe the prevalence. This study aimed to investigate the prevalence of enteric parasite infections among patients admitted to the University Hospitals Pediatric Units in the municipality of Pelotas, state of Rio Grande do Sul, Brazil, from April to December, 2012. Along with the delivery of the material for collecting feces sample, a structured questionnaire was administered to parents or guardians in order to obtain information about socioeconomic conditions of the family and how much they know about parasitic diseases. They were also given an educational material addressing the major parasitic diseases in the region. Feces samples were processed according to the techniques developed by Faust (centrifugal-flotation), Ritchie (centrifugal-sedimentation), and Baermann-Moraes. Of the 106 patients investigated, 32.1% were positive for one or more intestinal parasites. Trichuris trichiura (38.24%) and Ascaris lumbricoides (35.29%) were prevalent among helminthes. Giardia lamblia (14.7%) stood out among protozoa. Analysis of the questionnaires revealed alarming results regarding to people knowledge about parasitic diseases and the lack of parasite examination among children surveyed in this municipality. The index of parasitic diseases found in this study is a clear reflection of the lack of information behind parasitic diseases...

Estudo Retrospectivo da Doen??a de Chagas em doadores de sangue daregi??o noroeste do Rio Grande do Sul, Brasil; A Retrospective Study of Chagas Disease In Blood Donors from Northwest of Rio Grande do Sul State, Brazil

PEDROSO, D??bora
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
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Chagas Disease was discovered by Carlos Chagas in 1909. It is an hematological and tissue infection caused by flagellate protozoan Trypanosoma cruzi, which is transmitted by an hematophagous insect. In addition to transmission by the vector this parasitic infection can be acquired by humans in other ways, such as blood transfusion, laboratory accidents, organ transplants, oral transmission by penetration of trypomastigotes through oral mucosa or through placenta. Although blood transmission shows a decline after implementation of donor screening this is still present, and therefore needs constant vigilance. In view of this, the study aims to describe from a retrospective analysis a serological profile for Chagas disease in blood donors from the municipality of Santiago located in the northwestern state of Rio Grande do Sul, in which high levels of endemic disease appeared in past decades. The results of serological blood donors from the Blood Bank of municipality of Santiago were analyzed during the period 2001-2011. Of the 10,164 units of blood collected, with an average of 1,016 units per year, 2.68% were reactive to T. cruzi, being the main cause of discarding blood bags. The higher frequency of positive cases occurred in men, with mean age of 38.84 years old...

Ectoparasitos em mur??deos sinantr??picos (Rodentia) em Pelotas, sul do Rio Grande do Sul, Brasil; Ectoparasites in murine sinantropic (Rodentia) in Pelotas, southern Rio Grande do Sul, Brazil

WINKEL, Kathleen Tavares
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
66.05%
The murine Mus and Rattus play an important role in the transmission of diseases, both for humans and for livestock, either on his urine, feces , bites or through their ectoparasites. Considering the role played by ectoparasites of synanthropic rodents as vectors and / or reservoirs of disease, this study aimed to survey the ectoparasite fauna as well as to estimate the prevalence, abundance and mean intensity of ectoparasites in rodents captured in Pelotas, southern Rio Grande do Sul, Brazil. In the period January to May 2013 was conducted to capture sinantropic Murid (Rodentia) living through Tomahawk?? traps that were exposed 22h to 7h, baited with cubes of bacon, replenished daily. The traps were placed in the port area and was taken to capture as laboratory Insect Biology DEMP/IB/UFPEL. Was captured 48 murine Mus musculus 6, Rattus rattus 7 and Rattus norvegicus 35, which were euthanized and placed in containers of water and detergent for 20 minutes after it was performed by brushing the search for ectoparasites. Obtaining a total of 6791 specimens belonging to Acari (65.4%), Anoplura (34.3%), and Siphonaptera (0.3%). No significant correlation regarding sex and weight of the hosts with the number of specimens and species of ectoparasites. The species of arthropod ectoparasites identified were Laelaps (Echinolaelaps) echidninus (Gamasida) Myocoptes musculinus (Acaridida) Radifordia lukoschusi (Actinedida)...

Avalia????o de componentes da dieta de Pontoporia blainvillei Gervais & d Orbigny, 1844 (Cetacea, Pontoporiidae) como poss??veis hospedeiros intermedi??rios ao parasitismo por helmintos; Avalia????o de componentes da dieta de Pontoporia blainvillei Gervais & d Orbigny, 1844 (Cetacea, Pontoporiidae) como poss??veis hospedeiros intermedi??rios ao parasitismo por helmintos

SILVEIRA, Tony Leandro Rezende da
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
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Pontoporia blainvillei is a cetacean popularly know in Brasil as toninha. Its distribution is restrict for estuarine and coastal waters of south-west of Atlantic. Studies of gastrintestinalparasitology of toninhas indicate a component community formed for less species, including nematodes, trematodes and acantocephalans. However, despite knowing that the course of infection is the ingestion of infected prey, intermediate hosts are unknown. The toninhas s diet is composed mainly for fishes, squids and shrimps. Many of these fishes in various areas of distribution of the cetacean have been reported with parasites that attack the species in some stage of development. However, larval forms of the trematode Synthesium pontoporiae and the acantocephalan Bolbosoma turbinella were not identified in any of the food items of P. blainvillei. The present study aimed to evaluate three components of the diet of P. blainvillei as possible sources transmission of parasitiasis. Fifty specimens of Doryteuthis sanpaulensis; forty-three specimens of Paralonchurus brasiliensis and fifty specimens of Trachurus lathami were necropsied. The organs were individually, washed in tamis (150μm) and examined under a stereomicroscope. Helminths were collected...

Efeito imunomodulador de Saccharomyces boulardii em camundongos experimentalmente infectados por Toxocara canis; Saccharomyces boulardii immunomodulatory effect in mice experimentally infected with Toxocara canis

Avila, Luciana Farias da Costa de
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Tese de Doutorado Formato: application/pdf
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Human toxocariasis is a zoonotic disease with high prevalence in developing countries and it has been considered one of the most prevalent helminthiasis in Latin America. Probiotics modulate the immune response, which open up a new perspective of their use for prevention and treatment of parasitic diseases. To study the possible mechanisms of action mediated by the probiotic Saccharomyces boulardii, the aim of this study was to evaluate its immunomodulatory effect in Toxocara canis experimentally infected mice. Initially an in vitro test was performed to assess the existence of harmful effect of probiotic on T. canis. Next, was evaluated the modulation of the immune response of Swiss mice supplemented with S. boulardii and experimentally infected by T. canis. To this end the expressions of IL- 12, IL-17, IL-10, IL-4 and IFN?? cytokines in spleen cells from mice at 24 and 48h post- infection were studied by quantitative polymerase chain reaction (qPCR). The results indicate that the probiotic has no direct effect on parasites larvae, suggesting that is necessary the contact of S. boulardii with the intestinal mucosa of the host to the development of its protective effect. Furthermore S. boulardii promoted reduction of approximately 40% of the number of T. canis larvae recovered. Supplementation with S. boulardii modulated by increasing the expression of IL-12 (7 times)...

Influ??ncia da densidade de larvas de Culex quinquefasciatus Say, 1823 (Diptera, Culicidae) sobre per??odo e viabilidade de larvas e pupas, raz??o sexual e morfometria de adultos, em laborat??rio; Influ??ncia da densidade de larvas de Culex quinquefasciatus Say, 1823 (Diptera, Culicidae) sobre per??odo e viabilidade de larvas e pupas, raz??o sexual e morfometria de adultos, em laborat??rio

FELCHICHER, Francielly
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
66.05%
The Culicidae have importance in human health and other animals, as they constitute the group with higher vectorial capacity of pathogens among hematophagus arthropod. Among the mosquitoes Culex quinquefasciatus Say, 1823 (Diptera, Culicidae) shows high synanthropy and consequently high public health relevance, like vector of various pathogens such as Oropouche virus, nematodes such as Wuchereria bancrofti, Brugia malayi and Dirofilaria immitis, and the nuisance they cause to man in urban areas. The female of C. quinquefasciatus oviposit in breeding high in organic material such as sewage, drains, ditches open, with few natural enemies, as a result the high population of these individuals in urban areas. In order to evaluate the influence of the density of larvae of C. quinquefasciatus, experiments were performed with a fixed availability diet (100mg/L-1) and proportional diet to the number of larvae (1.9mg/larvae/L). The results show that the larval period of C. quinquefasciatus varies from 16.81 to 27.36 days to a density of 200 and 1250 larvae, respectively on restricted diet treatment. In the treatment with proportional diet showed no change in the larval period. Larval density with restricted diet and proportional diet did not affect the pupal period. The period of adult emergence was inversely proportional to larval density...

Toxoplasmose: Perfil Sorol??gico em gestantes atendidas em Postos de Sa??de do Munic??pio de Pelotas-RS; Toxoplasmosis: serological analysis in pregnant women who attend primary health centres in Pelotas - RS

CADEMARTORI, Beatris Gonz??lez
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
66.1%
The toxoplasmosis acquired during pregnancy of benign course in imunocompetentes patients and asymptomatic in 85% of the cases may infect the fetus and result in congenital infection. Although most of the newborns do not present symptoms or clinical signs, there may be sequelae during the childhood and adult life, being the corioretinitis the most frequent one. Among the strategies to prevent congenital toxoplasmosis we can find the education for health and the preconception trial, which aim is to reduce the exposition to the risk factors that may lead to an infection by T. gondii, to detect and to treat acute infection in pregnant woman. The aims of this study were to evaluate the prevalence and risk of congenital transmission by Toxoplasma gondii, through serological analysis of the pregnant women and also through their knowledge about the zoonose transmission routes, to check the possible association between the soropositivity of the pregnant women and their exposition to the infection risk factors, and also to compare the Chemiluminescence and Indirect Immunofluorescence techniques in the diagnosis of the toxoplasmosis in the studied sample. A transversal study was conducted, with 425 pregnant women who were attending prenatal care in public health centres of Pelotas (RS-Brazil)...

Ocorr??ncia de anticorpos para Neospora caninum em c??es da ??rea urbana e rural do sul do Rio Grande do Sul; Occurrence of antibodies against Neospora caninum in rural and urban dogs in the south of Rio Grande do Sul

CUNHA FILHO, Nilton Azevedo da
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
66.08%
Neospora caninum is a protozoan parasite that causes neurological problems in dogs. It has been shown that it may act as definitive hosts of the parasite. There is a need for more information on the occurrences of N. caninum in due to the wide range of its incidence in several Brazilian states, and the lack of animals diagnosed serum positive in Rio Grande do Sul. Rural dogs from (meat and dairy producers) and urban areas from the city of Pelotas were examined. Serum samples of 339 dogs were tested for the detection of antibodies against N. caninum by indirect immunofluorescence (RIFI ≥1:50). Antibodies for N. caninum were found in 53 (15,6%) of the dogs serum samples. The occurrence in the urban area was 5,5%, among the rural dogs 14,1% (18 dogs) belonged to dairy and 28,4% (29 dogs) from cattle farms. Dogs over three years old present the higher levels of serum positively and its presence increased with age. The dogs antibody titers were 1:50 (12 dogs), 1:100 (07 dogs), 1:200 (08 dogs), 1:400 (19 dogs), 1:800 (05 dogs) and 1:1600 (02 dogs). None of the dogs examined presented clinical signs of neosporosis when the blood was collected. The study of the variables (risk factors for N. caninum) in the logistic regression between the rural and urban environment has shown that older animals are 3...

Preval??ncia de enteroparasitoses na popula????o atendida em uma creche p??blica do Rio Grande, RS, e compara????o de m??todos de diagn??sticos para giard??ase

BERNE, Ana Cristina
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
66.1%
The enteroparasitosis remains as an important public health problem in children in the Brazil, showing variable prevalence, according to the State and evaluated population. Studies with day-care center children are scarce, however, already knows that the exposure of the children in these places increased the susceptibility to parasitosis. Among the parasitosis the protozoary Giardia lamblia is responsible for severe diarrhea cases in children and the routine diagnosis methods presents many false negative results. The aim of this study was investigate the enteroparasitosis prevalence in children from a day-care public center of Rio Grande county, Rio Grande do Sul State and compare diagnosis techniques in samples of their fecal material to Giardia lamblia , the ELISA immunoassay and the centrifugal-sedimentation methods. 165 fecal samples where evaluated and processed by centrifugal-sedimentation and centrifugal-flotation methods, stained by trichromium and Kinyoun after the concentration by centrifugal-sedimentation. The general prevalence of enteroparasitosis was 64,2% (106/165). The most prevalent nematods species founded was Trichuris trichiura (24,2%) and Ascaris lumbricoides (22,4%) and the the most prevalent protozoary specie was Giardia lamblia (30...

Contamina????o por protozo??rios potencialmente patog??ni-cos ao homem na ??gua de diferentes pontos da Laguna dos Patos, Rio Grande, RS; Contamination by protozoa potentially pathogenic to man in the water of different parts of Patos Lagoon, Rio Grande, RS

FALCHI, Ricardo Luiz Ricci
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
66.1%
In countries in development, one of the main causes of diseases is the contamination of the water due to the deficiency of the sanitary sewerage system. Rio Grande city, situated in the South of Rio Grande do Sul, as the majority of the Brazilian cities also presents limitations in the collection and treatment of the cloacal sewer. This deficiency makes that part of the residues of the population be eliminated directly in the Patos Lagoon, which acquits a important role in the fishing activity, besides being used as local for washing, in the summer months, by the population which lives around. This study had as objectives to investigate the presence of pathogenic parasites to the man and parasites that are indicator of fecal contamination water samples gathered in different parts of the Patos Lagoon, Rio Grande, RS. In the period between January and December of 2005, it was gathered, monthly, samples of 500mL of water in 12 different parts of the Lagoon. The samples were filtered through a membrane of acetate of cellulose (0,45), under a negative pressure for the material retention. After the material elution, through the Tween 80 solution to 0, 1%, the material was concentrated by centrifugation in 1500 rpm, during 15 minutes. For the initial research of protozoa...

Propaga????o larval p??s-alimentar de Lucilia sericata (Meigen, 1826) (Diptera: Calliphoridae) em arena circular; Post-feeding larval propagation of Lucilia sericata (Meigen, 1826) (Diptera: Calliphoridae) in a circular arena

PIRES, Sabrina Medeiros
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
66.08%
The blowflies are the first insects to compose the faunistic succession of human cadavers, thus helping to determine the postmortem interval (PMI). However, failing to consider larval post-feeding dispersal can compromise medical-criminal inquiries. In order to investigate the relationship between post- feeding Lucilia sericata larvae and their weight, radial dispersion and depth, an artificial arena was built simulating the natural environment. We observed a difference in mean pupal weight between males (30.28mg) and females (32.35mg). We also observed that the majority of pupae were recovered a distance of 33 to 45cm from the center of the arena, and at a depth of 6 to 8cm from the surface. However, we observed no differences in radial dispersion and depth of pupation between males, females or unviable individuals. Correlation analysis between weight and distance (r = 0.246) and between weight and depth (r = 0.321) was directly proportional, suggesting that heavier pupae dispersed farther and deeper than lighter pupae. The experiment also allowed us to conclude that a circular arena permitted larval dispersion all directions.; Os d??pteros califor??deos s??o os primeiros indiv??duos a compor a sucess??o faun??stica dos cad??veres humanos auxiliando assim na estimativa do intervalo p??s- morte. Por??m...

Giardiose humana e bovina na bacia leiteira do munic??pio do Cap??o do Le??o,RS; Human and bovine giardiasis in dairy farms of municipality from Cap??o do Le??o,RS

RECUERO, Ana L??cia Coelho
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
66.1%
The objectives of this study were to describe the prevalence and risk factors for G. lamblia infection in calves up to 12 months of age and children up to 12 years old in 30 dairy farms of Municipality from Cap??o do Le??o,RS,as well as to compare analytically three diagnostic methods.Fresh fecal samples were randomly collected from 148 calves and 22 children.Feces were examined for the presence of G.lamblia by using two conventional tests of microscopic examination as Faust and Ritchie and a commercially available immunoenzymatic assay (RIDASCREEN ?? Gi??rdia,R- Biopharm AG)to detect G.lamblia specific coproantigen.Data describing herd management practices,age,gender,breed and fecal consistency were gathered to assess potential risk factors associated with shedding.The overall prevalence for G. lamblia was 70.0%to the farms;23.6%to the calves and 13.6%to the children. Calves that were 1 4 months of age were 13.87 (95%CI,2.48 296.38;=0.001) times more likely to be shedding G.lamblia than calves with more than 4 months of age.Farms that were the waste water to less than 40 m to the well,were 3.38 (95% CI,1.15 9.86;P =0.01)times more likely to be calves with G.lamblia than farms that were the waste water to more than 40 m to the well.Farms that were the waste water in a more elevated plane that the well...

Helminto e artropodofauna de Paroaria coronata (Miller, 1776) (Passeriformes: Emberzidae); Helminth and Arthropodfauna of the Paroaria coronata (Miller, 1776) (Passeriformes: Emberezidae)

MASCARENHAS, Carolina Silveira
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
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Paroaria coronata (red-crested cardinal) occurs only of South America. The species is not in danger of extinction, but it is appreciated by the illegal trade in wild animals. His parasite fauna is little known and has been recorded only one Nematoda and three Phthiraptera. The diet is mainly based greasses seeds, but can consume small fruit and insects. The study aimed to identify helminths and arthropods associated with red-crested cardinal and for that were examined wild birds, captives and of undetermined origin, totaling 40 specimes. The wild birds and undetermined origin were the most parasitized. The helminthfauna was composed of Aproctella carinii, Dispharynx nasuta, Capillaria sp. Diplotriaena sp. (Nematoda); Tanaisia oviaspera, Tanaisia valida, Tanaisia sp., Prosthogonimus ovatus (Trematoda); Orthoskrjabinia sp. (Cestoda); Mediorhynchus sp. (Acanthocephala). Tanaisia sp. was most prevalent (10%) and more abundant (0.48), D. nasuta and Orthoskrjabinia sp. occurred with greater mean intensity of parasitism (5 helminths/host). The arthropodfauna was represented by Myrsidea coronatae, Philopterus sp. and Brueelia sp. (Phthiraptera); Ptilonyssus sairae and Sternostoma pirangae (Gamasida), where M. coronatae and P. sairae were the most prevalent with 65% and 50%...

Helmintos e artr??podes de Vanellus chilensis (Molina, 1782), quero-quero, da regi??o sul do Rio Grande do Sul; Identification of helminths and arthropods in Vanellus chilensis (Molina, 1782) (Charadriiformes: Charadriidae), lapwing, in the south region of the Rio Grande do Sul state

Avancini, Luciano Fagundes
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-gradua????o em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
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Vanellus chilensis is a bird species of the family Charadriidae distributed across Central and South America. Despite its high abundance and broad distribution, there are few records of parasites on this species. Aiming to identify the helminths and arthropods that parasitize V. chilensis in southern Brazil, twenty eight birds were necropsied. For collection of ectoparasites, the birds were individually washed in water containing detergent. After that, they were necropsied and their organs were examined for helminths under a stereomicroscope. The helminths found and its respective prevalence, mean abundance and mean intensity were: Brevithominx asperodorsus (Enoplida, Capilariidae) 53.6%, 4.5 and 8.4; Heterakis psophiae (Oxyurida, Heterakidae) 39.3%, 1.0 and 2.55; Dispharynx nasuta (Spirurida, Acuariidae) 28.6%, 4.11 and 14.38; Echinostoma aphylactum (Echinostomida, Echinostomatidae) 17.9%, 0.64 and 3.6; Stomylotrema vicarium (Plagiorchiida, Stomylotrematidae) 10.7%, 0.25 and 2.33; Neivaia cymbium (Cyclocoeloidea, Cyclocoelidae) 7.1%, 0.14 and 2.0; Gyrocoelia perversa (Cyclophyllidea, Dioecocestidae) 60.7%. The Phthiraptera found were Actornithopilus sp. (Amblycera, Menoponidae) and Quadraceps guimaraesi (Ischnocera, Philopteridae). Another arthropod collected was the nasal mite Rhinonyssus sp. (Acarina...

Estudo sobre o comportamento de apetência de diferentes estágios do carrapato Amblyomma cajennense (Acari: Ixoidae); Study on the behavior of palatability of different stages of the tick Amblyomma cajennense (Acari: Ixoidae)

ASSAL, Flávio Ezzeddine El
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ecologia e Evolução; Ciências Biológicas - Biologia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ecologia e Evolução; Ciências Biológicas - Biologia
Tipo: Dissertação Formato: application/pdf
POR
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This paper evaluates the behavior of appetite expressed in different stages of the ticks Amblyomma cajennense testing the hypothesis that nymphs and adults of this species have strategy of game play while the larvae ambush. To this end, through observations, we sought to describe and propose a classification of appetite expressed by these different stages comparing strategies appetite displayed by different instars of the species with the express adult Rhipicephalus sanguineus on the same environmental conditions. Experimentally, the expressions of these behaviors face of different stimuli (CO2, equine odor, shading, radiant heat, and the 'air control') were evaluated. For this, we collected ticks of the species in horses and dogs naturally infested Center for Zoonosis Control in Goiânia-GO, which were created in rabbits and multiplied in the vivarium of the Center for Veterinary Parasitology, Federal University of Goiás (CPV / UFG ). The ratings of the behaviors that occurred in a room of the Centre -CPV/UFG were held in a glass box with removable cover, having a dozen plastic rods for the expression of search strategies. This glass chamber showed temperature conditions (25 º C + / -3 ° C), relative humidity (80%

Bioatividade de extratos a uosos de Eucalyptus sp. L'Hér. (Myrtaceae) e Melia azedarach L. (Meliaceae) sobre Musca domestica L. (Diptera, Muscidae); Bioactivity of a ueous extracts of Eucalyptus sp. L'Hér. (Myrtaceae) and Melia azedarach L. (Meliaceae) on Musca domestica L. (Diptera, Muscidae)

FREITAS, Sabrina Rodrigues Quadro de
Fonte: Universidade Federal de Pelotas; Biologia; Programa de Pós-graduação em Parasitologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de Pós-graduação em Parasitologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
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The extracts of vegetal origin have been largely studied with the aim of obtaining an efficient and ecologically viable alternative to the control of plagues.The study of substances with selective deterrent bioactivity that affects insect s behavior, development and reproductive output is extremely important to avoid the problems caused by non selective chemical insecticides.Based in the importance of Musca domestica L.(Diptera,Muscidae)due to its high potential of carrying pathogens,its occurrence in high populations and in the lack of studies about the effects of vegetal extracts over insects,the present study was carried out with the objective of evaluating the deterrent bioactivity of aqueous extracts of Eucalyptus sp. L'Hér. (Myrtaceae)and Melia azedarach L.(Meliaceae)over larvae of M. domestica and the influence of the aqueous extract of M. azedarach on the oviposition behavior of this insect.To evaluate the influence of the aqueous extracts of Eucalyptus sp.and M. azedarach on larvae of M. domestica...; Os extratos de origem vegetal têm sido amplamente estudados visando se obter uma alternativa eficaz e ecologicamente viável para o controle de pragas.O estudo de substâncias com bioatividade deterrente seletiva,que atuem sobre o comportamento...