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Leite, Patrícia V. B., Luiza B. Leite, Arildo P. da Cunha, Marcos X. Silva, Ana Cristina P. P. Bello, Luísa N. Domingues, Antônio Leite Jr, and Romário C. Leite. "Clinical aspects and dynamics of auricular parasitosis in Gir cattle." Pesquisa Veterinária Brasileira 33, no. 3 (March 2013): 319–25. http://dx.doi.org/10.1590/s0100-736x2013000300008.
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We evaluated the dynamics of ear infestations caused by Rhabditis spp. and Raillietia spp., which were correlated with animal age, intensity of clinical signs and climate factors. Sixty-four Gir cattle were distributed into three groups: GA - 23 calves with 4 to 6 months of age; GB - 18 calves with 7 to 12 months of age; and GC - 23 heifers with 13 to 33 months of age. Five samplings, defined as S1, S2, S3, S4 and S5 were performed every three months from August 2008 to August 2009. The ear secretion was collected using the auricular washing method for the right ear and a swab for the left ear. A clinical assessment of the animals was performed, and they were classified according to the presence and severity of otitis. The highest relative frequency of rhabditosis was 52.2% in GC at the last sampling. In the first sampling, 42.2% of the animals were infested by Raillietia spp. The older cattle were more susceptible to infestations by both parasites. No correlation of Rhabditis spp. and Raillietia spp. parasitism with climate factors was found. The results showed that both parasites could infest Gir cattle, and in most cases, there was no co-infestation. Only older animals parasitized by the nematode showed clinical signs of the disease.
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Santos, Sandra B. dos, Elmiro R. do Nascimento, João Luiz H. Faccini, Maria Lúcia Barreto, and Rinaldo A. Mota. "Associação entre Mycoplasma spp. e ácaros do conduto auditivo de bovinos." Pesquisa Veterinária Brasileira 32, no. 4 (April 2012): 293–96. http://dx.doi.org/10.1590/s0100-736x2012000400004.
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Esse estudo foi realizado com o objetivo de verificar a associação entre micoplasmas e ácaros (Raillietia auris e R. flechtmanni) no conduto auditivo de bovinos. Foram realizadas lavagens no conduto auditivo externo de 60 bovinos abatidos no Estado do Rio de Janeiro, Brasil. Para a lavagem dos condutos auditivos foi utilizada solução salina tamponada (PBS, pH 7.2) em seringas estéreis de 60mL. Para o isolamento de micoplasmas foram utilizados pools de ácaros por animal, lavados sucessivamente em 1mL de meio Hayflick modificado. Os lavados dos ácaros foram diluídos de 10-1 até 10-5 e repicados em meio Hayflick modificado, sólido e líquido e incubados a 37°C por 48-72 horas em microaerofilia. A identificação das espécies de micoplasmas foi realizada pelo teste da imunoperoxidase indireta (IPI). Verificou-se alta prevalência de ácaros do gênero Raillietia spp. 76,7% (46/60). O parasitismo por ácaros e micoplasmas foi verificado em 40 animais (74,1%), sendo esta associação significativa (p<0,001). Dos ácaros processados para isolamento de micoplasmas, 193 foram fêmeas e 25 machos. A frequência de Mycoplasma em Raillietia spp. foi de 81,2% (177/218) (p<0.001). Das fêmeas identificadas, 52,3% (101/193) foram R. auris e 47,7% (92/193) R. flechtmanni. A frequência de Mycoplasma nas fêmeas de R. auris foi de 75,2% (76/101) e na espécie R. flechtmanni foi de 88% (81/92) (P<0.05). As espécies de micoplasmas tipificadas pela IPI nos ácaros Raillietia auris foram: M. alkalescens 6,9%, M. arginini 3,4%, M. bovirhinis 9,2%, M. conjunctivae 18,4%, M. mycoides mycoides LC 8,0%, M. capricolum 5,7%. Em R. flechtmanni as espécies de micoplasmas identificadas foram: M. alkalescens 12,2%, M. arginini 1,0%, M. bovirhinis 18,9%, M. bovis 2,2%, M. conjunctivae 21,0%, M. mycoides mycoides LC 11,0% e M. capricolum 4,4%. As espécies de micoplasmas identificadas no conduto auditivo externo dos bovinos foram as mesmas presentes nos ácaros R. auris e R. flechtmanni. Os resultados confirmam que o conduto auditivo externo de bovinos é um habitat de Mycoplasma spp., incluindo espécies potencialmente patogênicas para os rebanhos, além dos ácaros R. auris e R. flechtmanni estarem associados com esses molicutes carreando-os em seu organismo.
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Duarte, E. R., M. M. Melo, and J. S. Hamdan. "Epidemiological aspects of bovine parasitic otitis caused by Rhabditis spp. and/or Raillietia spp. in the state of Minas Gerais, Brazil." Veterinary Parasitology 101, no. 1 (October 2001): 45–52. http://dx.doi.org/10.1016/s0304-4017(01)00492-7.
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Bogach, M., A. Paliy, P. Liulin, L. Perots’ka, O. Bohach, I. Pyvovarova, and A. Palii. "Parasites of domestic and wild pigeons in the south of Ukraine." Biosystems Diversity 29, no. 2 (May 27, 2021): 135–39. http://dx.doi.org/10.15421/012118.
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Pigeons are closely related to human life and are both a source of food and object for hobbies and sports. Parasitic diseases of birds are the main reason for their growth retardation, reduced productivity and viability. The article presents the results of studying the prevalence of trichomonosis, cestodes and nematodes among the population of wild and domestic pigeons in the south of Ukraine. According to the results of the conducted researches it is established that in the south of Ukraine endoparasitoses of domestic and wild pigeons are quite widespread, and all species of this bird are carriers of Trichomonas gallinae. At the same time, the highest rate of Trichomonas infection was recorded in Columba palambus and C. livia domestica, and the overall infestation of males is higher by 4.4% compared to females. It was determined that domestic pigeons C. livia domestica were infested with trichomonosis (27.5%) and nematodes (Ascaridia columbae, 57.1%), C. palambus – trichomonosis (32.1%) and cestodes (Raillietina spp., 82.4%), Streptopelia turtur – cestodes (Raillietina spp., 12.5%) and S. decaocto – cestodes (Raillietina spp., 71.4%) and nematodes (Heterakis gallinarum, A. columbae – 33.3% and 44.4% respectively). The overall rate of infestation of pigeons with cestodes was 28.4% and the incidence in males was higher by 3.9% compared to females. It was found that the most common species among pigeon cestodes is Raillietina spp. In addition, 22.9% of pigeons are carriers of nematodes (H. gallinarum, A. columbae and Capillaria spp.). Continuous monitoring of pigeon parasites is necessary because they, in most cases, come into contact with other species of poultry and are a source of general invasion. In terms of further research, it would be promising to study the prevalence of helminthic infestation among wild migratory birds.
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Alam, MN, M. Mostofa, MAHNA Khan, MA Alim, AKMA Rahman, and AA Trisha. "Prevalence of Gastrointestinal Helminth Infections in Indigenous Chickens of Selected Areas of Barisal District, Bangladesh." Bangladesh Journal of Veterinary Medicine 12, no. 2 (December 22, 2014): 135–39. http://dx.doi.org/10.3329/bjvm.v12i2.21275.
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The prevalence of gastrointestinal helminth infections and the gross pathological lesions produced by them were studied from February 2012 to January 2013 in the Department of Pharmacology of Bangladesh Agricultural University, Mymensingh. In this study, a total of 320 indigenous chickens aged ranging from 2 to 4 months were examined to identify the different types of gastrointestinal helminth infections in indigenous chickens. During routine examination, six species of helminth parasites were recorded, of which five species of nematodes such as Ascaridia galli, Heterakis gallinarum, Capillaria spp, Acuaria hamulosa and Dispharynx spiralis; and one species was cestode called Raillietina tetragona. The highest prevalence was observed for Ascaridia galli (41.56%) followed in descending order by Raillietina tetragona (19.68%), Heterakis gallinarum (15.62%), Acuaria hamulosa (8.75%), Capillaria spp. (4.68% ) and Disopharinx spiralis (1.56%). The gross pathological lesions were observed in case of Acuaria hamulosa and Heterakis gallinarum infection. In case of Acuaria hamulosa infection keratinization of gizzard mucosa and cross section of adult Acuaria hamulosa were seen along with marked infiltration of neutrophils. The results of this study suggest that both nematodes and cestodes are highly prevalent in indigenous chickens in the studied area.DOI: http://dx.doi.org/10.3329/bjvm.v12i2.21275 Bangl. J. Vet. Med. (2014). 12 (2): 135-139
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Cazorla Perfetti, Dalmiro, and Pedro Morales Moreno. "Parásitos intestinales en poblaciones ferales de palomas domésticas (Columba livia domestica) en Coro, estado Falcón, Venezuela." Revista de Investigaciones Veterinarias del Perú 30, no. 2 (July 5, 2019): 836–47. http://dx.doi.org/10.15381/rivep.v30i2.16214.
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La paloma doméstica (Columba livia domestica) es una especie de ave columbiforme muy bien adaptada a los ambientes intervenidos por el ser humano. Sin embargo, puede servir de transportador de microorganismos patógenos de interés médico-zoonótico. Entre agosto de 2017 y agosto de 2018 se recolectaron heces de poblaciones ferales de palomas domésticas para determinar la ocurrencia de parásitos intestinales en tres sitios de la ciudad de Coro, estado Falcón, Venezuela: en el Hospital Universitario “Alfredo Van Grieken”, en el terminal de pasajeros municipal y en la Universidad Nacional Experimental “Francisco de Miranda”. Las muestras (n= 516) se analizaron mediante cinco métodos coprológicos: directo, flotación de Willis-Molloy, flotación de Faust, sedimentación en tubo y coloración de Kinyoun. El análisis parasitológico reveló la presencia en el 54.3% (280/516) de las muestras fecales de 12 taxones enteroparasitarios, de las cuales varias son consideradas potencialmente de importancia médico-zoonótico (Criptosporidium spp, Blastocystis spp, Cyclospora spp). Los taxones más prevalentes fueron Cryptosporidium spp (38.5%), Isospora spp (19.4%), Cyclospora spp (13%) y Raillietina spp (7.8%). Se discute las implicaciones de estos hallazgos en el contexto de la salud pública.
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Polello, Loredana, Anna Rita Molinar Min, Angela Fanelli, Ennio Negri, Andrea Peano, Pier Giuseppe Meneguz, and Paolo Tizzani. "First Data on Gastrointestinal Parasitic Infection in the Red-Legged Partridge (Alectoris rufa) in Italy." Diversity 13, no. 7 (June 24, 2021): 287. http://dx.doi.org/10.3390/d13070287.
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The Red-legged partridge (Alectoris rufa) is a Mediterranean Galliformes, recently classified as Near Threatened by the International Union for the Conservation of Nature, due to the constant and significant decline of its global population. While the gastrointestinal parasites of the species are well studied in some part of its range (Iberian peninsula), limited information is available for the Italian populations, that represent the eastern limit of the species range. This study was conducted to fill this gap of knowledge, determining the composition, richness, prevalence, intensity and abundance of A. rufa gastrointestinal parasite community in two populations in Italy. During the autumn seasons 2008–2009 and 2009–2010, necropsies were conducted on 18 Red-legged partridge from the southern part of Alessandria province (Piedmont, northwestern Italy) and 34 from the Parma province (Emilia Romagna, northern Italy). All the animals were examined for the presence of gastrointestinal parasites. Additionally, 229 fecal samples were collected from live animals in Alessandria province. Prevalence, abundance and intensity of infection were calculated for each parasite species, except for coccidia for which only the prevalence was determined. The following parasites were observed: Heterakis gallinarum, Ascaridia spp., Ascaridia columbae, Raillietina spp., Eimeria spp. The highest parasite prevalence was found in Alessandria province for Eimeria sp., infecting almost half of the sampled animals (P: 45%, CI95%: 39–51). Eimeria sp. was also the most prevalent parasite in Parma province but with much lower prevalence (P: 19%, CI95%: 5–32). Intestinal helminths prevalence ranged from 3% (CI95%: 0–9) for A. columbae and Raillietina spp. (Parma Province) to 9% for H. gallinarum in both Parma (CI95%: 0–19), and Alessandria province (CI95%: 0–22). To our knowledge, this is the first study providing information on the gastrointestinal parasites of the Red-legged partridge in Italy. Ascaridia columbae, a parasite typical of the domestic pigeon, was reported for the first time in A. rufa. The epidemiological descriptors reported herein could serve as a basis for future studies, allowing for epidemiological comparison across countries, locations, and time periods.
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Hernández-Martínez, María Cristina, Jorge Luis Parra-Arango, Agustín Góngora-Orjuela, Harvey Augusto Walteros-Casas, and Jenny Jovana Chaparro-Gutiérrez. "Identificación de ecto y endoparásitos en palomas domésticas (Columba livia) del área urbana de Villavicencio, Meta, Colombia." Revista MVZ Córdoba 26, no. 3 (June 2, 2021): e2157. http://dx.doi.org/10.21897/rmvz.2157.
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Objetivo. Determinar la presencia de parásitos internos y externos en palomas comunes (Columba livia) del área urbana de la ciudad de Villavicencio, Meta, durante la transición verano a invierno del año 2017. Materiales y Métodos. Se capturaron 72 palomas de tres comunas de la ciudad y sometidas a inspección visual para parásitos externos, a la vez se obtuvo muestras de material fecal para análisis coprológico mediante el método de Sheather’s. Se realizaron frotis con las muestras de sangre y tinción con Giemsa para agentes hemotrópicos. Resultados. En el 100% de las muestras se encontraron dos especies de parásitos externos: piojos malófagos (Columbicola columbae) y mosca de paloma (Pseudolynchia canariensis). Dentro de los parásitos internos se encontraron dos protozoarios: Haemoproteus spp. 26.5% (9/34) en frotis sanguíneo y Eimeria spp. 36% (26/72) en heces, seguido de los nematodos: Ascaridia spp. 4.2% (3/72) y Capillaria spp. 13.8% (10/72) y cestodos: Raillietina spp. 1.38% (1/72). No se encontró asociación del parasitismo con el sexo de la paloma o la comuna de muestreo. Conclusiones. La presencia de parásitos internos fue baja, excepto para Eimeria spp., estos datos representan información importante del riesgo potencial para la salud animal y humana, especialmente para poblaciones comerciales de aves y la avifauna nativa. Estos resultados indican que se requieren programas sanitarios y de control en las poblaciones de palomas de la ciudad.
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Abdullah, Shadan Hassan. "Ecto and Endo Parasites Prevalence in Domestic Chickens in Sulaimani Region." Iraqi Journal of Veterinary Medicine 37, no. 2 (December 1, 2013): 149–55. http://dx.doi.org/10.30539/iraqijvm.v37i2.275.
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The study was conducted on 65 local adult chickens (Gallus domesticus) to investigate macro - and microscopically presence of external and internal parasites and their prevalence in Sulaimani region-Kurdistan/Iraq from May to July 2012. Results showed that 90.77 % out of total examined chickens were infested with ecto-parasites, out of that 81.36 % (48/59) were infested with lice such as (Menacanthus stramineus, Goniocotes gallinae, Menopon gallinae, Goniodes gigas, Cuclotogaster heterographus ) and 62.72 (37/59) of it with larval stage of soft tick such as (Argas persicus). Mixed infestations with more than two ecto-parasite species were detected. On the other hand 89.23% out of 65 examined chickens were infected by internal parasites including nematodes and cestodes such as (Heterakis gallinarum which formed 81% and the remains were Ascaridia galli, Cheilospirura hamulosa, Capillaria spp., Raillietina spp., Choanotaenia infundibulum, Amoebotaenia sphenoides, Hymenolepis carioca and Davaniea proglottina).
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Butboonchoo, Preeyaporn, Chalobol Wongsawad, Amnat Rojanapaibul, and Jong-Yil Chai. "Morphology and Molecular Phylogeny of Raillietina spp. (Cestoda: Cyclophyllidea: Davaineidae) from Domestic Chickens in Thailand." Korean Journal of Parasitology 54, no. 6 (December 31, 2016): 777–86. http://dx.doi.org/10.3347/kjp.2016.54.6.777.
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Forrester, Donald J., Danny B. Pence, Albert O. Bush, David M. Lee, and Nicholas R. Holler. "Ecological analysis of the helminths of round-tailed muskrats (Neofiber alleni True) in southern Florida." Canadian Journal of Zoology 65, no. 12 (December 1, 1987): 2976–79. http://dx.doi.org/10.1139/z87-451.
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The helminths of 114 round-tailed muskrats (Neofiber alleni True) from sugarcane fields in southern Florida were studied. Eight species of helminths were found, one cestode and seven nematodes. Of the 114 muskrats studied, 113 were infected with one to five species (mean = 2.6). Intensities varied from 1 to 2543 (mean = 149.3). Strongyloides sigmodontis was more abundant in juveniles and males and during the wet season. Carolinensis kinsellai was more abundant in juveniles while Raillietina sigmodontis was found only in males. Trichostrongylus spp. were more abundant during the wet season and in juveniles. None of these variables was interactive. The helminth community of round-tailed muskrats was dominated by satellite species, most of which were apparently derived from cotton rats (Sigmodon hispidus).
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Faixová, D., G. Hrčková, T. Mačák Kubašková, and D. Mudroňová. "Antiparasitic effects of selected isoflavones on flatworms." Helminthologia 58, no. 1 (February 10, 2021): 1–16. http://dx.doi.org/10.2478/helm-2021-0004.
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Summary Medicinal plants have been successfully used in the ethno medicine for a wide range of diseases since ancient times. The research on natural products has allowed the discovery of biologically relevant compounds inspired by plant secondary metabolites, what contributed to the development of many chemotherapeutic drugs. Flavonoids represent a group of therapeutically very effective plant secondary metabolites and selected molecules were shown to exert also antiparasitic activity. This work summarizes the recent knowledge generated within past three decades about potential parasitocidal activities of several flavonoids with different chemical structures, particularly on medically important flatworms such as Schistosoma spp., Fasciola spp., Echinococcus spp., Raillietina spp., and model cestode Mesocestoides vogae. Here we focus on curcumin, genistein, quercetin and silymarin complex of flavonolignans. All of them possess a whole spectrum of biological activities on eukaryotic cells which have multi-therapeutic effects in various diseases. In vitro they can induce profound alterations in the tegumental architecture and its functions as well as their activity can significantly modulate or damage worm´s metabolism directly by interaction with enzymes or signaling molecules in dose-dependent manner. Moreover, they seem to differentially regulate the RNA activity in numbers of worm´s genes. This review suggests that examined flavonoids and their derivates are promising molecules for antiparasitic drug research. Due to lack of toxicity, isoflavons could be used directly for therapy, or as adjuvant therapy for diseases caused by medically important cestodes and trematodes.
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Schurer, Janna M., Michael Pawlik, Anna Huber, Brett Elkin, H. Dean Cluff, Jodie D. Pongracz, Karen Gesy, et al. "Intestinal parasites of gray wolves (Canis lupus) in northern and western Canada." Canadian Journal of Zoology 94, no. 9 (September 2016): 643–50. http://dx.doi.org/10.1139/cjz-2016-0017.
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Gray wolves (Canis lupus L., 1758) are mobile opportunistic predators that can be infected by a wide range of parasites, with many acquired via predator–prey relationships. Historically, many of these parasites were identified only to genus or family, but genetic tools now enable identification of parasite fauna to species and beyond. We examined 191 intestines from wolves harvested for other purposes from regions in the Northwest Territories, British Columbia, Saskatchewan, and Manitoba. Adult helminths were collected from intestinal contents for morphological and molecular identification, and for a subset of wolves, fecal samples were also analyzed to detect helminth eggs and protozoan (oo)cysts. Using both detection methods, we found that 83% of 191 intestines contained one or more parasite species, including cestodes (Taenia spp., Echinococcus spp., and Diphyllobothrium sp.), nematodes (Uncinaria stenocephala Railliet, 1884, Trichuris spp., Physaloptera spp., and Toxascaris leonina (von Linstow, 1902)), a trematode (Alaria sp.), and protozoa (Sarcocystis spp., Giardia sp., and Cryptosporidium spp.). Molecular characterization identified one species of Diphyllobothrium (Diphyllobothrium latum (L., 1758) Cobbold, 1858), three species of Taenia (Taenia krabbei Moniez, 1879, Taenia hydatigena Pallas, 1766, and Taenia multiceps Leske, 1786), and two Giardia duodenalis (Davaine) Deschiens, 1921 assemblages (B and C). These results demonstrate the diverse diet of wolves and illustrate the possibility of parasite spillover among wildlife, domestic animals, and people.
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Abad A., Deisy, Amanda Chávez V., Rosa Pinedo V., Manuel Tantaleán V., and Omar Gonzáles-Viera. "Helmintofauna Gastrointestinal de Importancia Zoonótica y sus Aspectos Patológicos en Roedores (Rattus spp) en Tres Medioambientes." Revista de Investigaciones Veterinarias del Perú 27, no. 4 (January 17, 2017): 736. http://dx.doi.org/10.15381/rivep.v27i4.12568.
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El objetivo del estudio fue identificar y determinar la prevalencia de helmintos gastrointestinales de importancia zoonótica presentes en roedores (Rattus spp) en tres medioambientes (granjas porcinas, zoológico y mercados de abastos) de Lima, Perú, así como estimar la asociación entre presencia de helmintos y las variables lugar de procedencia, especie, edad y sexo. Se capturaron 245 (Rattus rattus y Rattus norvergicus) roedores mediante el uso de trampas de captura viva. Cráneos, piel, carta dentaria y parámetros morfométricos se utilizaron para la clasificación taxonómica de las especies. Se colectó el estómago e intestino delgado y grueso. Los helmintos se colocaron en alcohol 70% y los tejidos fueron preservados en formol 10%. La prevalencia de helmintos gastrointestinales fue de 72.2% en tanto que la prevalencia de helmintos zoonóticos fue de 46.5%. Se hallaron cuatro especies de importancia zoonótica: Raillietina demerariensis, Gongylonema neoplasticum, Hymenolepis diminuta y Moniliformis moniliformis; estos dos últimos de mayor frecuencia en los tres ecosistemas. Otros helmintos identificados fueron Mastophorus muris, Heterakis spumosa, Aspicularis tetrapera, Syphacia muris, Trichuris muris, Capillaria sp y Vampirolepis fraterna. Los hallazgos histopatológicos mostraron disminución del tamaño de las vellosidades intestinales, desprendimiento de células epiteliales, aumento del número de células caliciformes y enterocitos con presencia de eosinófilos, linfocitos, plasmocitos y macrófagos asociados a H. diminuta, M. moniliformis y R. demerariensis.
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Asumang, Philip, Justice Akoto Delali, Francis Wiafe, Zeba Kamil, Gadafi Iddrisu Balali, Vera Afua Dela Gobe, Wilson Nketiah Siaw, and Grace Pinamang. "Prevalence of Gastrointestinal Parasites in Local and Exotic Breeds of Chickens in Pankrono–Kumasi, Ghana." Journal of Parasitology Research 2019 (September 2, 2019): 1–7. http://dx.doi.org/10.1155/2019/5746515.
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The world’s poultry population is on the ascendency as a result of the high demand for poultry product by consumers. In Africa, poultry meat is estimated to represent almost 25% of all meat, whereas in some areas it covers 100% of the animal protein available. The high demand for poultry products has led to an increase in poultry production in almost all African countries including Ghana, with the domestic chicken being the most kept. The sector has been reported to have recorded a drop in production, partly due to infection of birds by diseases, causing organisms including parasites. The study conducted was to investigate the prevalence of gastrointestinal parasites in local and exotic breeds of chickens in Pankrono–Kumasi in the Ashanti Region of Ghana. Two hundred (200) cloacae of slaughtered birds were collected from slaughtering units in the study area and the faecal samples were examined for the eggs/cysts of gastrointestinal parasites using the simple flotation technique and microscopy. Nematodes and cestodes were recovered in 131 (65.5%) of the samples examined with Ascaridia galli recorded as the most prevalent. Some of the nematodes include Ascaridia galli 65 (32.5%), Heterakis gallinarum 38 (19.0%), and Capillaria spp. 29 (14.5%). Some cestodes were Raillietina spp. 19(9.5%) and Choanotaenia infundibulum 5 (2.5%) with Prosthogonimus spp. 3 (1.5%) being the only trematode recovered. The local breeds recorded a percentage prevalence of 76.0%, making them the most susceptible breed to gastrointestinal parasites. The results obtained attest to the reason behind the reduction in poultry production. It is therefore recommended that farmers are educated on farm managerial practices that will reduce the risk of infection and help increase production to meet the demand of consumers.
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SAFI-ELDIN, MARWA, HODA TAHA, and AMEEN ASHOUR. "DESCRIPTION OF CESTODES INFECTING DOMESTICATED PIGEON (COLUMBA LIVIA DOMESTICA) IN EGYPT WITH SPECIAL REFERENCE TO THE MOLECULAR CHARACTERIZATION OF RAILLIETINA SPP." Journal of the Egyptian Society of Parasitology 49, no. 3 (December 1, 2019): 493–504. http://dx.doi.org/10.21608/jesp.2019.68050.
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Choudhury, A., and V. León Règagnon. "Molecular phylogenetics and biogeography of Bunodera spp. (Trematoda: Allocreadiidae), parasites of percid and gasterosteid fishes." Canadian Journal of Zoology 83, no. 12 (December 1, 2005): 1540–46. http://dx.doi.org/10.1139/z05-153.
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The genus Bunodera Railliet, 1896 is represented by five freshwater species: the holarctic B. luciopercae (Müller, 1776) in percids; the endemic North American B. sacculata VanCleave and Mueller, 1932 in percids; B. eucaliae (Miller, 1936) and B. inconstans (Lasee, Font and Sutherland, 1988) in freshwater sticklebacks; and the trans-Pacific B. mediovitellata Tsimbaliuk and Roytman, 1966 in the threespine stickleback (Gasterosteus aculeatus L., 1758). Partial sequences of the 28S ribosomal RNA gene were combined with morphological data for a phylogenetic analysis of Bunodera spp. Parsimony analysis of the combined data yielded a tree (consistency index = 0.84) that supports the following resolution: ((((B. luciopercae(((B. sacculata((B. mediovitellata(B. eucaliae + B. inconstans)))). The basal position of B. luciopercae is consistent with its holarctic distribution and a basal percid as its main host. The relatively basal positions of two typical perch parasites and the association of a more derived clade (B. mediovitellata + B. eucaliae + B. inconstans) with sticklebacks indicate host shifting from percids to sticklebacks. The sister relationships and North American endemicity of the two most derived species, B. eucaliae and B. inconstans, are also consistent with the more derived position of their typical host, the freshwater brook stickleback (Culaea inconstans (Kirtland, 1841)).
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Diakou, A., S. Ptochos, and E. Papadopoulos. "Cestode fauna of feral pigeons in Thessaloniki; Northern Greece." Helminthologia 50, no. 1 (May 1, 2013): 39–42. http://dx.doi.org/10.2478/s11687-013-0105-7.
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AbstractThe common pigeon (Columba livia) is adapted to a variety of habitats; including big cities and rural areas everywhere in the world. Several studies confirm that feral pigeons pose a considerable health risk to the livestock and human population. They may serve as a reservoir for several pathogenic agents that can be transmitted to poultry; wildlife; domesticated pets and humans. The aim of this survey was to investigate the cestode species present in feral pigeons in Thessaloniki; Northern Greece. A total of 136 adult feral pigeons were necropsied and the cestodes recovered were preserved for identification using morphological keys. Ninety-six (70.58 %) of them were found to be infected with cestode parasites; which were identified to be Raillietina spp.: 84 (61.76 %) were infected with R. echinobothrida; 20 (14.7 %) with R. cesticillus and 8 (5.88%) with R. tetragona. Single infection was recorded in 80 birds (83.3 % of the infected population); while a significantly lower number; i.e. 16 birds (16.7 %); had a mixed infection with R. echinobothrida and R. cesticillus (p ≤ 0.05). The current study confirms that feral pigeons in Northern Greece are heavily infected with cestode parasites. Therefore; it was concluded that feral pigeon management programmes and public education should be implemented to reduce the risk of a pigeon-to-human or livestock transmission of pathogenic agents and parasites in the country.
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DAS, B., V. TANDON, and N. SAHA. "Genistein fromFlemingia vestita(Fabaceae) enhances NO and its mediator (cGMP) production in a cestode parasite,Raillietina echinobothrida." Parasitology 134, no. 10 (April 24, 2007): 1457–63. http://dx.doi.org/10.1017/s003118200700282x.
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SUMMARYCyclic GMP (cGMP) is responsible for various cellular functions including signal pathways and it acts as a mediator for nitric oxide (NO). In order to evaluate the anthelmintic efficacy of the plant-derived isoflavones, the crude peel extract ofFlemingia vestitaand pure genistein were tested with respect to the activity of nitric oxide synthase (NOS), NO efflux and the cGMP concentration inRallietina echinobothrida, the cestode parasite of domestic fowl. For comparison, the parasites were also treated with genistein (the major isoflavone present in the crude peel extract), sodium nitroprusside (SNP), a known NO donor, and praziquantel (PZQ), the reference drug. At the time of onset of paralysis in the parasite, the activity of NOS showed a significant increase (35–46%) and a 2-fold increase of NO efflux into the incubation medium in the treated worms in comparison to the respective controls. The cGMP concentration in the parasite tissue increased by 46–84% in the treated test worms in comparison to the controls. The results show that the isoflavones, genistein in particular, from the crude peel extract ofF. vestitainfluence the cGMP concentration in the parasite tissue, which plays a major role in the downstream signal pathways.
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Bartlett, Cheryl M., Pooi Leng Wong, and Roy C. Anderson. "Eulimdana lari (Yamaguti, 1935) n. comb. (Nematoda: Filarioidea) from Phalaropus spp. (Charadriiformes) in Canada and a review of the genus Eulimdana Founikoff, 1934." Canadian Journal of Zoology 63, no. 3 (March 1, 1985): 666–72. http://dx.doi.org/10.1139/z85-096.
Full textAbstract:
Eulimdana lari (Yamaguti, 1935) n. comb. (Nematoda: Filarioidea) was found in 1 of 26 Phalaropus lobatus (L.) and 3 of 9 P. tricolor (Vieillot) collected in Canada near Deer Island, New Brunswick, and Delta, Manitoba, respectively. This is the first report of the parasite in the New World and extends the distribution of the parasite across the Holarctic. Eulimdana lari is now known from 17 species of Charadriiformes, including P. tricolor which is a new host record. It is suggested that E. lari is a parasite of shorebird communities. Eulimdana lari is redescribed and a taxonomic review of Eulimdana Founikoff, 1934 is provided, including an amended generic diagnosis and an annotated list of the five species. Heimnema Chabaud, Brygoo, and Richard, 1964 is placed in synonymy with Eulimdana. In addition to E. lari (Yamaguti, 1935) n. comb., the following changes are made: E. micropenis (Travassos, 1926) n. comb. and E. heimi (Chabaud, Brygoo, and Richard, 1964) n. comb. Eulimdana mazzantii (Railliet, 1893) Neveu-Lemaire, 1936, is considered a species inquirenda. It is pointed out that the type species, E. clava (Wedl, 1856) Founikoff, 1934 has a worldwide distribution in pigeons.
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El-Dakhly, Kh M., E. El-Nahass, S. Uni, H. Tuji, H. Sakai, and T. Yanai. "Levels of infection of gastric nematodes in a flock of great cormorants (Phalacrocorax carbo) from Lake Biwa, Japan." Journal of Helminthology 86, no. 1 (February 22, 2011): 54–63. http://dx.doi.org/10.1017/s0022149x11000046.
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AbstractA high prevalence (86.7%) of various species of nematodes was observed in the stomach of great cormorants living in Lake Biwa, Japan. There were varying numbers of adults belonging to two common genera, Eustrongylides Jagerskiold 1909 (Nematoda: Dioctophymatidae) and Contracaecum Railliet & Henry 1912 (Nematoda: Anisakidae). The first included common adenophorean nematodes comprising a single species, Eustrongylides tubifex and the second comprised ascaroid nematodes that contained four named species: Contracaecum rudolphii Hartwich, 1964, Contracaecum microcephalum Yamaguti, 1961, Contracaecum multipapillatum Drasche, 1882 and Contracaecum chubutensis Garbin, 2008. After the prevalence and intensity of the infection had been noted, both types of nematodes were frequently observed to penetrate the mucosa and intrude into the wall of the glandular stomach, where they caused gross haemorrhage and ulceration. The Eustrongylides sp. was predominantly found in a nodular lesion of the proventricular wall, while Contracaecum spp. were observed either free in the lumen of the proventriculus or, on occasion, deeply penetrating its wall. Of the Contracaecum spp., C. rudolphii was the most prevalent. Grossly, large numbers of nematodes were present in infected stomachs (for C. rudolphii intensity was 1–34 and 3–57 nematodes in male birds and 1–21 and 1–32 in females; for C. microcephalum 1–2 and 1 in male birds and 1–2 in females; for C. multipapillatum 2 in male cormorants and no infection in females; for C. chubutensis 1–2 and 1 in male birds and 1–5 and 1 in females and for E. tubifex 1–5 nematodes in male birds and 2–8 in females). Ulcerative inflammation and hyperaemia were the most common pathological presentations, especially in areas that had been invaded by parasites. Microscopically, varying degrees of granulomatous inflammatory reactions were seen, in addition to degenerated nematodes which appeared to have deeply penetrated mucosal surfaces and were surrounded by fibrous connective tissues.
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SOKOLOV, SERGEY G., ALEXANDER P. KALMYKOV, and SVETLANA V. MALYSHEVA. "Phylogeny of dracunculoid nematodes (Chromadorea: Rhabditida: Spirurina: Dracunculoidea) from some Eurasian freshwater fishes." Zootaxa 4858, no. 4 (October 2, 2020): 521–41. http://dx.doi.org/10.11646/zootaxa.4858.4.3.
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Sets of small ribosomal DNA (SSU rDNA) and large ribosomal DNA (LSU rDNA) sequences were obtained for Philometroides moraveci Vismanis & Yunchis, 1994, Philometra kotlani (Molnár, 1969), Philometra rischta Skrjabin, 1923, Philometra cf. obturans (Prenant, 1886) (Philometridae), Sinoichthyonema amuri (Garkavi, 1972), Agrachanus scardinii (Molnár, 1966), Kalmanmolnaria intestinalis (Dogiel & Bychowsky, 1934) and Skrjabillanus tincae Shigin & Shigina, 1958 (Skrjabillanidae). Phylogenetic analysis of SSU rDNA data shows that dracunculoid nematodes are divided into two well-supported clades designated as Clade I and Clade II, respectively. Clade I includes the type species of the genus Philonema Kuitunen-Ekbaum, 1933, some species from the family Daniconematidae Moravec & Køie, 1987 and two subfamilies of skrjabillanids, Skrjabillaninae Shigin & Shigina, 1958 and Esocineminae Moravec, 2006. Clade II unites species from the families Dracunculidae Stiles, 1907, Micropleuridae Baylis & Daubney, 1926 and Philometridae Baylis & Daubney, 1926. Within the Philometridae, there are several well-supported groups of species, one of which unites freshwater Philometra spp. from the Palearctic cyprinids, identified as P. kotlani, P rischta, P. ovata (Zeder, 1803) and P. cyprinirutili (Creplin, 1825). However, the phylogenetic relationships of most philometrids are unresolved. An analysis of partial SSU and LSU rDNA sequences indicates that there is no direct phylogenetic relationship between Agrachanus Tikhomirova, 1971 (type species Skrjabillanus scardinii Molnár, 1966) and Skrjabillanus Shigin & Shigina, 1958 (type species Sk. tincae), which means that the genus Agrachanus can be resurrected. Our study confirms that Philonematinae Ivashkin, Sobolev & Khromova, 1971 should be elevated to the family rank. We formally establish the family Philonematidae Ivashkin, Sobolev & Khromova, 1971 stat. nov. We also suggest combining the superfamilies Dracunculoidea Stiles, 1907 and Camallanoidea Railliet & Henry, 1915 into the infraorder Camallanomorpha Roberts, Janovy & Nadler, 2013.
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Mushi, E. Z., M. G. Binta, R. G. Chabo, R. Ndebele, and T. Thibanyane. "Helminth parasites of indigenous chickens in Oodi, Kgatleng District, Botswana : short communication." Journal of the South African Veterinary Association 71, no. 4 (July 10, 2000). http://dx.doi.org/10.4102/jsava.v71i4.725.
Full textAbstract:
Thirteen adult indigenous chickens from Oodi, Kgatleng district, Botswana, were examined for helminth parasites. Two species of nematodes, Ascaridia galli and Heterakis gallinarum, and species of the cestode genus Raillietina, were recovered. A. galli and H. gallinarumwere the most commonly seen parasites. The nematode A. galli occurred concurrently with Raillietina spp.
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Al-Mahmoudi, Abbas Hadi Jasim, Khalil G. Chelab Al-Nailey, Mansour Jadaan Ali, Monyer Abdulameir Abd Alfatlawi, and Tahseen A. HAL-Saeedi. "Clinical, Parasitic, and Histopathological Study of Pigeons Infested with Raillietina spp in Al-Qadisiyah Province, Iraq." International Journal of Drug Delivery Technology 9, no. 02 (August 20, 2019). http://dx.doi.org/10.25258/ijddt.9.2.21.
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Pigeons, in Al-Qadisiyah Province-Iraq, were investigated Clinically, parasitically, and histopathologically for the presence of Raillietina spp in their intestines. For these reasons, 5 cities from the mentioned province above were sampled as 150 (100 males and 50 females) pigeons were studied. The general clinical inspection, intestinal exploration and slides for the worms, and histopathological slide sections for the infested intestines were performed. The results of the clinical studies revealed delay growth in the young birds and emaciation in the adult pigeons. For the parasitic characteristics in the intestines, the results showed clearly the presence of Raillietina spp, declaring by their firmly attachment to the mucosa by their suckers and showing their segments, in the lumens of the small intestines. In the case of histopathological pictures, intestines revealed grossly small-intestine-wall-based enlargement and obstruction via intussception caused by the tapeworm presence with huge amounts of mucus and air bubbles and the parasitic white convoluted tracks in the intestinal mucosa. Microscopically, the results recognized that mucosa had mechanical disintegration, marked sloughing of the epithelial layers that belonged to the villi and crypts, epithelial-cell-based desquamation of the villi that were affected by dwarfism, mucosa and submucosa infiltration with mononuclear cells. This study provides important clinical, parasitic, and histopathological data of pigeons infested with Raillietina spp in AlQadisiyah Province, Iraq.
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Malatji, Dikeledi P., Anna M. Tsotetsi, Este Van Marle-Koster, and Farai C. Muchadeyi. "A description of village chicken production systems and prevalence of gastrointestinal parasites: Case studies in Limpopo and KwaZulu-Natal provinces of South Africa." Onderstepoort J Vet Res 83, no. 1 (March 9, 2016). http://dx.doi.org/10.4102/ojvr.v83i1.968.
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The majority of rural households in developing countries own village chickens that are reared under traditional scavenging systems with few inputs and exposure to various parasitic infestations. Understanding of the village chicken farming system and its influence on helminth infestation is a prerequisite for optimal prevention and control strategies. This study investigated the village chicken production system and associated gastrointestinal parasites in 87 households from Limpopo (n = 39) and KwaZulu-Natal (n = 48) provinces of South Africa. A total of 191 village chicken faecal samples and 145 intestines were collected to determine the prevalence of gastrointestinal parasites in villages of Limpopo and KwaZulu-Natal provinces, respectively. The faecal floatation analysis of samples from Limpopo and KwaZulu-Natal provinces indicated infestations by Ascaridia galli (18.77%), Heterakis gallinarum (15.56%) and Capillaria spp. (4.00%); tapeworms Choanotaenia infundibulum (2.10%) and Raillietina cesticillus (6.00%) and Eimeria spp. (29.46%). Mixed infestations were observed in five (4.90%) samples from Limpopo province and in only four (4.49%) from KwaZulu-Natal province, of which 1.12% were a mixture of C. infundibulum and Eimeria spp. and 3.37% a combination of H. gallinarum and Eimeria spp. In Limpopo, 2.94% of the chickens were positive for H. gallinarum and Eimeria spp., whilst 0.98% had A. galli and Capillaria spp. infestations. Further investigation is needed to understand the impact of gastrointestinal parasites on village chicken health and production and develop appropriate intervention and control strategies feasible for smallholder farmers.Keywords: Helminthes; Village chickens; Smallholder farming systems; Faecal samples
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Brito, Angela Silva de Almeida, Edson Guilherme, Francisco Glauco de Araújo Santos, Rosiane Portela de Mesquita, and Fábio Augusto Gomes. "ENDOPARASITES OF WILD BIRDS FROM CAMPUS AREA AND ZOOBOTANICAL PARK, AT THE FEDERAL UNIVERSITY OF ACRE, RIO BRANCO - ACRE." Arquivos de Ciências Veterinárias e Zoologia da UNIPAR 20, no. 3 (November 23, 2017). http://dx.doi.org/10.25110/arqvet.v20i3.2017.6363.
Full textAbstract:
This study was developed at the Campus (C) and the Zoo-botanical Park (PZ) at the Federal University of Acre, with the purpose of identifying endoparasites in the avifauna of those locations. The birds were captured using 10 mist nets. The nets were set from 1 p.m. to 5 p.m.. The faecal samples collected were stored in Merthiolate, Iodine and Formaldehyde (MIF). Willies and direct methods were used for the diagnostic of endoparasites. Two hundred and eighty-seven birds were captured, with 34 recaptures, which resulted in 253 different specimens – 158 on the campus and 95 at the PZ. The birds caught were from 58 different species, belonging to 25 families and 12 orders. Fecal samples from 193 birds belonging to 49 species from 11 orders and 18 families were obtained and analyzed. The following endoparasites were identified: Eimeria sp., Entamoeba coli, Entamoeba histolytica, Iodamoeba bütschlii, Isospora sp., Enterobius vermicularis, Heterakis gallinarum, Ascaridia galli, Strongyloides avium, Capillaria spp., Ancylostoma spp., Raillietina sp., Choanotaenia sp., Microphallus sp., and Echinostoma revolutum. Eimeria sp. was the most frequent parasite found in most bird species. The results showed a high level of endoparasitic infection in the aviary community in the two study areas.
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Brito, Angela Silva de Almeida, Edson Guilherme, Francisco Glauco de Araújo Santos, Rosiane Portela de Mesquita, and Fábio Augusto Gomes. "ENDOPARASITES OF WILD BIRDS FROM CAMPUS AREA AND ZOOBOTANICAL PARK, AT THE FEDERAL UNIVERSITY OF ACRE, RIO BRANCO - ACRE." Arquivos de Ciências Veterinárias e Zoologia da UNIPAR 20, no. 3 (November 23, 2017). http://dx.doi.org/10.25110/arqvet.v20i3.6363.
Full textAbstract:
This study was developed at the Campus (C) and the Zoo-botanical Park (PZ) at the Federal University of Acre, with the purpose of identifying endoparasites in the avifauna of those locations. The birds were captured using 10 mist nets. The nets were set from 1 p.m. to 5 p.m.. The faecal samples collected were stored in Merthiolate, Iodine and Formaldehyde (MIF). Willies and direct methods were used for the diagnostic of endoparasites. Two hundred and eighty-seven birds were captured, with 34 recaptures, which resulted in 253 different specimens – 158 on the campus and 95 at the PZ. The birds caught were from 58 different species, belonging to 25 families and 12 orders. Fecal samples from 193 birds belonging to 49 species from 11 orders and 18 families were obtained and analyzed. The following endoparasites were identified: Eimeria sp., Entamoeba coli, Entamoeba histolytica, Iodamoeba bütschlii, Isospora sp., Enterobius vermicularis, Heterakis gallinarum, Ascaridia galli, Strongyloides avium, Capillaria spp., Ancylostoma spp., Raillietina sp., Choanotaenia sp., Microphallus sp., and Echinostoma revolutum. Eimeria sp. was the most frequent parasite found in most bird species. The results showed a high level of endoparasitic infection in the aviary community in the two study areas.
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Moravec, František. "Some aspects of the taxonomy, biology, possible evolution and biogeography of nematodes of the spirurine genus Rhabdochona Railliet, 1916 (Rhabdochonidae, Thelazioidea)." Acta Parasitologica 55, no. 2 (January 1, 2010). http://dx.doi.org/10.2478/s11686-010-0017-3.
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AbstractAt present the nematode genus Rhabdochona Railliet, 1916 (Rhabdochonidae) comprises 92 possibly valid species, mostly intestinal parasites of freshwater fishes in all zoogeographical regions. Because of the absence of any phylogenetic studies using molecular methods in this nematode group, an attempt to evaluate affinities among these parasites and their zoogeography on the basis of morphological features and host-parasite relationships has been carried out. Only true definitive hosts should be considered for such evaluation. It appears that, during the evolution of Rhabdochona spp., there occur an increase in the number of anterior prostomal teeth, loss of lateral alae, the right spicule attains a boat-like shape and a dorsal barb develops on its distal tip, and the distal tip of the left spicule attains gradually a more complex structure; the eggs with a smooth surface are considered to be more primitive. Nematodes of this genus most probably originated in the region of present southern Asia at the beginning of Tertiary. Closest to the initial type appear to be members of the subgenus Globochona Moravec, 1972, from which lineages leading to the subgenera Globochonoides Moravec, 1975, Rhabdochona Railliet, 1916 and Sinonema Moravec, 1975 can be derived. The morphology of Rhabdochona spp. indicate a close relationship between the Palaearctic fauna of these nematodes with the Nearctic species, and the Oriental fauna with the Ethiopian fauna. The Neotropical species can be derived from Nearctic members of the subgenus Rhabdochona; the latter probably penetrated, along with leuciscine hosts into North America from Palaearctic Eurasia at the end of Tertiary. The distribution of Palaearctic species of Rhabdochona corresponds to faunistical complexes in the conception of ichthyologists.
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Mukaratirwa, S., and M. P. Khumalo. "Prevalence of helminth parasites in free-range chickens from selected rural communities in KwaZulu-Natal province of South Africa." Journal of the South African Veterinary Association 81, no. 2 (May 8, 2010). http://dx.doi.org/10.4102/jsava.v81i2.113.
Full textAbstract:
A total of 79 chickens were randomly collected from 4 rural localities and processed to detect the presence of helminth parasites and their prevalences. Sixteen helminth species comprising 12 nematode and 4 cestode species were recorded from the 4 localities. Syngamus trachea and Cyathostoma spp. were the only helminth species recovered from the respiratory tract and the rest of the helminth species were from the gastrointestinal tract. The most prevalent nematode species across the 4 localities were Heterakis gallinarum (prevalence range 80-94.4 %), Gongylonema ingluvicola (43.3-86.7 %), Tetrameres americana (53.3-66.7 %) and Ascaridia galli (22.2-43.8 %) and for cestode species, Raillietina tetragona(16.7-40 %) and Skrijabinia cesticillus (3.3-13.3 %) were the most prevalent in that order.Heterakis gallinarum and T. americana had the highest intensity of infection in chickens acrossall the rural areas compared with other helminth species. There was no significant difference (P > 0.05) observed in the sex distribution for As. galli, Baruscapillaria obsignata (syn. Capillaria obsignata), Eucoleus annulatus (syn. Capillaria annulata), Eucoleus contortus (syn. Capillaria contorta) and Subulura suctoria among the 4 rural areas. However, a significant difference (P<0.05) was observed in the intensity of infection of both males and females for H. gallinarum and T. americana across the 4 localities studied. Tetrameres americana, A. galli, C. obsignata and C. annulata had prevalence and number of females higher than that of males, while H. gallinarum showed the opposite. Prevalence of H. gallinarum and T. americana as determined by faecal egg count were much lower compared with the prevalence as determined by post mortem examination, confirming the limitation of using faecal samples in determining the prevalence of gastrointestinal helminth parasites in chickens.
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Kuzmin, Yuriy, Vasyl Tkach, Scott Snyder, and Jeffrey Bell. "Camallanus Railliet et Henry, 1915 (Nematoda, Camallanidae) from Australian freshwater turtles with descriptions of two new species and molecular differentiation of known taxa." Acta Parasitologica 56, no. 2 (January 1, 2011). http://dx.doi.org/10.2478/s11686-011-0015-0.
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AbstractTwo new species of Camallanus are described from Australian freshwater turtles. Camallanus beveridgei sp. nov. is reported from Elseya dentata in Northern Territory. It differs from other species of the genus parasitic in turtles by several characters including the shape of the median ridge in the buccal capsule and the position of the anterior pair of caudal papillae in males. Camallanus sprenti sp. nov. is reported from Elseya latisternum (type host) and Emydura krefftii in northern Queensland. It is closely related to Camallanus tuckeri, and differs from the latter species in possessing a shorter oesophagus. We summarize data on morphology, distribution and specificity of 5 known Camallanus spp. from Australian turtles and provide a key for their identification. Sequence comparison of more than 500 base pairs at the 5′ end of the nuclear 28S rDNA gene confirms the status of C. sprenti and C. beveridgei as new species. Camallanus sprenti differs from the other 4 species of Camallanus from Australian turtles by 16–59 bases (3.1–11.5%) while C. beveridgei differed from the other 4 species by 23–60 bases (4.5–11.6%). Phylogenetic analysis demonstrates close interrelationships among C. tuckeri, C. sprenti and C. beveridgei, the three species with most similar buccal capsules.
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Magalhães Pinto, Roberto, Dely Noronha, Marcelo Knoff, and Delir Corrêa Gomes. "RHABDOCHONA (R.) URUYENI (NEMATODA, RHABDOCHONIDAE) EN BRASIL: PRESENTE SITUACIÓN DE RHABDOCHONA RAILLIET EN SUD-AMÉRICA, CON UN LEVANTAMIENTO BIBLIOGRÁFICO A NIVEL MUNDIAL DEL GÉNERO DESDE 1845 HASTA 2010." Neotropical Helminthology 4, no. 1 (May 26, 2021). http://dx.doi.org/10.24039/rnh2010411091.
Full textAbstract:
Durante investigaciones direccionadas a los nematodos de peces depositados en la Colección Helmintológica del Instituto Oswaldo Cruz (CHIOC), algunas muestras fueron estudiadas y identificadas como Rhabdochona uruyeni Diaz-Ungria, 1968. La presente situación de las especies que ocurren en Sud- América es discutida y actualizada. Además, se efectuó un amplio levantamiento bibliográfico relacionado a taxonomía, morfología, biología, cladística y ecología del género, a fin de proporcionar una pronta indicación de las citas sobre las especies de Rhabdochona, comprendiendo un período de 165 años. Hasta el presente, Rhabdochona (Rhabdochona) acuminata es referida en Argentina, Brasil, y Ecuador, junto con Rhabdochona (Filochona) fabianae en Argentina y Rhabdochona (Rhabdochona) uruyeni en Venezuela y ahora en Brasil por primera vez y en un nuevo huésped. También, Rhabdochona spp. están señaladas en Argentina, Brasil y Peru. Rhabdochona colossomi Diaz-Ungria, 1968 es considerado como nomen nudum.
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Demirci, Berna, Hilal Bedir, Gencay Taskin Tasci, and Zati Vatansever. "Potential Mosquito Vectors of Dirofilaria immitis and Dirofilaira repens (Spirurida: Onchocercidae) in Aras Valley, Turkey." Journal of Medical Entomology, November 9, 2020. http://dx.doi.org/10.1093/jme/tjaa233.
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Abstract Dirofilaria immitis (Leidy, 1856) and Dirofilaria repens (Railliet & Henry, 1911) are mosquito-borne filarial nematodes that primarily affect dogs, causing heartworm disease and subcutaneous dirofilariosis. The canine heartworm is reported in different provinces in Turkey. However, studies about the transmitting mosquito species are limited. Hence, this study aimed to investigate potential vectors of D. immitis and D. repens in Aras Valley, Turkey. In total, 17,995 female mosquitoes were collected from eight villages during three mosquito seasons (2012–2014) in Aras Valley, located in north-eastern Turkey. A total of 1,054 DNA pools (527 abdomen and 527 head-thorax) were tested with Dirofilaria primers by multiplex-polymerase chain reaction (PCR). Aedes caspius was the most abundant species in collection sites with 90%; this was followed by Culex theileri Theobald, 1903 (Diptera: Culicidae) (7.31%), Anopheles maculipennis Meigen 1818 (Diptera: Culicidae) (1.28%), Culex pipiens Linnaeus, 1758 (Diptera: Culicidae) (0.43%), (Anopheles) hyrcanus (Pallas, 1771) (Diptera: Culicidae) (0.37%), Aedes vexans (Meigen, 1830) (Diptera: Culicidae) (0.25%), and Culiseta annulata Schrank, 1776 (Diptera:Culicidae) (0.02%). Dirofilaria immitis and D. repens were detected in mosquito pools from five villages. The total Dirofilaria spp. estimated infection rate was 1.33%. The highest estimated infection rate was found in Ae. vexans (6.66%) and the lowest was in Ae. caspius (1.26%). The results show that An. maculipennis sl, Ae. caspius, Ae. vexans, Cx. theileri and Cx. pipiens are potential vectors of D. immitis and D. repens with DNA in head-thorax pools; An. hyrcanus is also a likely vector, but Dirofilaria DNA was found only in abdomen pools for the study area. This study revealed new potential vector species for D. immitis. Mosquitoes with natural infections of D. repens were reported for the first time in Turkey.