Vanessa Doro Abdallah, Rodney Kozlowiski de Azevedo, Reinaldo José da Silva
This article describes a new species –Trinibaculum altiparanae sp. n. –found in the gills of the Astyanax altiparanae Garutti & Britski, 2000. Fish were collected from the Peixe River in the municipality of Anhembi, State of Sao Paulo, Brazil, in March 2010. This paper describes the third species of the genus Trinibaculum. This new species is characterized by having an accessory structure that does not articulate with the male copulatory organ (MCO). This accessory structure has a basally bifid, well-curved distal end, tapered with a terminal flabellate piece. The male copulatory organ is a simple tube with less than one ring coiled counterclockwise; two similar curved dorsal bars; a ventral bar with concave ends and a posterior projection, a dorsal anchor with a truncated deep root and a slightly curved shaft, a ventral anchor with a curved shaft and differently shaped and sized hooks. Those features distinguish the new species from the two other species previously described in this genus: Trinibaculum braziliensis Kritsky, Thatcher & Kayton, 1980 was found parasitizing Brycon melanopterus (Cope, 1872) and Trinibaculum rotundus Karling, Lopes, Takemoto & Pavanelli, 2011 was found parasitizing Schizodon borellii (Boulenger, 1900).
{"title":"TRINIBACULUM ALTIPARANAE SP. N. UNA NUEVA ESPECIE DE DACTYLOGYRIDO (MONOGENEA) DE ASTYANAX ALTIPARANAE (OSTEICHTHYES: CHARACIDAE) EN EL RÍO PEIXE, SUDESTE DE BRASIL","authors":"Vanessa Doro Abdallah, Rodney Kozlowiski de Azevedo, Reinaldo José da Silva","doi":"10.24039/RNH201372979","DOIUrl":"https://doi.org/10.24039/RNH201372979","url":null,"abstract":"This article describes a new species –Trinibaculum altiparanae sp. n. –found in the gills of the Astyanax altiparanae Garutti & Britski, 2000. Fish were collected from the Peixe River in the municipality of Anhembi, State of Sao Paulo, Brazil, in March 2010. This paper describes the third species of the genus Trinibaculum. This new species is characterized by having an accessory structure that does not articulate with the male copulatory organ (MCO). This accessory structure has a basally bifid, well-curved distal end, tapered with a terminal flabellate piece. The male copulatory organ is a simple tube with less than one ring coiled counterclockwise; two similar curved dorsal bars; a ventral bar with concave ends and a posterior projection, a dorsal anchor with a truncated deep root and a slightly curved shaft, a ventral anchor with a curved shaft and differently shaped and sized hooks. Those features distinguish the new species from the two other species previously described in this genus: Trinibaculum braziliensis Kritsky, Thatcher & Kayton, 1980 was found parasitizing Brycon melanopterus (Cope, 1872) and Trinibaculum rotundus Karling, Lopes, Takemoto & Pavanelli, 2011 was found parasitizing Schizodon borellii (Boulenger, 1900).","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"270 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122118366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fasciola hepatica has a complex life cycle that includes a limnid snail as an intermediate host, where larval parthenogenetic multiplication occurs. We performed an experimental study of the life cycle of F. hepatica and estimated its potential biotic (r) in Galba truncatula. We selected 215 of these snails, and infected them with miracidia obtained at 26 ° C in the presence of light. We proceeded to dissect five snails every three days. By tracking the number of stages of F. hepatica by light microscopy observing external characteristics and development time of miracidia, sporocyst, rediae, and cercariae. We noted that the exponential growth model is best suited to the dynamics of F. hepatica. With a biotic potential of 6.69%, an average of 203 cercariae per miracidium and 270 cercariae per snail.
{"title":"CICLO BIOLÓGICO Y POTENCIAL BIÓTICO DE FASCIOLA HEPATICA EN GALBA TRUNCATULA","authors":"Paul Iturbe-Espinoza, Flavia Muñiz-Pareja","doi":"10.24039/RNH201372982","DOIUrl":"https://doi.org/10.24039/RNH201372982","url":null,"abstract":"Fasciola hepatica has a complex life cycle that includes a limnid snail as an intermediate host, where larval parthenogenetic multiplication occurs. We performed an experimental study of the life cycle of F. hepatica and estimated its potential biotic (r) in Galba truncatula. We selected 215 of these snails, and infected them with miracidia obtained at 26 ° C in the presence of light. We proceeded to dissect five snails every three days. By tracking the number of stages of F. hepatica by light microscopy observing external characteristics and development time of miracidia, sporocyst, rediae, and cercariae. We noted that the exponential growth model is best suited to the dynamics of F. hepatica. With a biotic potential of 6.69%, an average of 203 cercariae per miracidium and 270 cercariae per snail.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130448703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
José Iannacone, M. Torre, L. Alvariño, Carla Cepeda, H. Ayala, George Argota
One of the most studied plant families in the search for new therapeutic agents is the Asparagaceae, comprising 2480 species, Agave americana L. with the common name maguey and Furcraea andina Trel., named fique plant belong in this family. Sapindus saponaria L. (Sapindaceae) known as western soapberry is a widely distributed tree, whose fruit was observed to have larvicidal effects on ticks, antimicrobial activity, spermicide, fungicide and molluscicide. Melanoides tuberculata (Muller 1774) (Gastropoda: Thiaridae) is a snail with cosmopolitan distribution especially in tropical areas with high ecological importance. The invasive impact on the diversity of threatened native snails, or at least decrease the native shellfish populations, due to its high biotic potential and high reproductive rate. Thus, the objective of this study was to evaluate the acute toxicity of leaves of A. americana, F. andina and fruit of S. saponaria on M. tuberculata. The endpoint was mortality of the snail M. tuberculata to 24 hr of exposure, with recovery in clean water to 24 hr. The values o?f LC (median lethal concentration), NOEC (no 50 observable effect concentration) and LOEC (lowest concentration of observable effects) had the following sequence in order of decreasing toxicity: A. americana> F. andina> S. saponaria. The aqueous extract of A. americana molluscicides showed the best effects on M. tuberculata compared to the other two plants used.
在寻找新的治疗药物方面，研究最多的植物科之一是芦笋科，包括2480种，其中龙舌兰(Agave americana L.)与龙舌兰(Furcraea andina Trel)共同命名为maguey和Furcraea。，属本科。Sapindus saponaria L. (Sapindus saponaria L.)是一种广泛分布的乔木，被称为西方皂子，其果实具有杀蜱、抑菌、杀精、杀真菌和杀软体动物的作用。黑螺蛳(Melanoides tuberculata, Muller 1774)(腹足目:螺蛳科)是一种广泛分布的蜗牛，特别是在热带地区具有很高的生态价值。由于其高生物潜力和高繁殖率，入侵影响了受威胁的本地蜗牛的多样性，或至少减少了本地贝类的种群。因此，本研究的目的是评价美洲杉叶、黄芪叶和皂角果对结核分枝杆菌的急性毒性。终点是接触24小时后蜗牛结核分枝杆菌的死亡率，在清洁水中24小时后恢复。值0 ?f LC(中位致死浓度)、NOEC(无50个可观察效应浓度)和LOEC(最低可观察效应浓度)的毒性递减顺序为:美洲蒿>黄芪>皂角蒿。美洲松香水提物对结核分枝杆菌的防治效果最好。
{"title":"TOXICIDAD DE LOS BIOPLAGUICIDAS AGAVE AMERICANA, FURCRAEA ANDINA (ASPARAGACEAE) Y SAPINDUS SAPONARIA (SAPINDACEAE) SOBRE EL CARACOL INVASOR MELANOIDES TUBERCULATA (THIARIDAE)","authors":"José Iannacone, M. Torre, L. Alvariño, Carla Cepeda, H. Ayala, George Argota","doi":"10.24039/RNH201372981","DOIUrl":"https://doi.org/10.24039/RNH201372981","url":null,"abstract":"One of the most studied plant families in the search for new therapeutic agents is the Asparagaceae, comprising 2480 species, Agave americana L. with the common name maguey and Furcraea andina Trel., named fique plant belong in this family. Sapindus saponaria L. (Sapindaceae) known as western soapberry is a widely distributed tree, whose fruit was observed to have larvicidal effects on ticks, antimicrobial activity, spermicide, fungicide and molluscicide. Melanoides tuberculata (Muller 1774) (Gastropoda: Thiaridae) is a snail with cosmopolitan distribution especially in tropical areas with high ecological importance. The invasive impact on the diversity of threatened native snails, or at least decrease the native shellfish populations, due to its high biotic potential and high reproductive rate. Thus, the objective of this study was to evaluate the acute toxicity of leaves of A. americana, F. andina and fruit of S. saponaria on M. tuberculata. The endpoint was mortality of the snail M. tuberculata to 24 hr of exposure, with recovery in clean water to 24 hr. The values o?f LC (median lethal concentration), NOEC (no 50 observable effect concentration) and LOEC (lowest concentration of observable effects) had the following sequence in order of decreasing toxicity: A. americana> F. andina> S. saponaria. The aqueous extract of A. americana molluscicides showed the best effects on M. tuberculata compared to the other two plants used.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128806978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ana Lúcia Ribeiro Gonçalves, C. Silva, Edson Fernando Goulart de Carvalho, Marlene Tikudo Ueta, Julia Maria Costa-Cruz
In order to investigate the levels of antibodies and antigen in sera and in broncho-alveolar lavage fluid (BALF) samples, female rats immunosuppressed or non-immunosuppressed female rats and rats experimentally infected with Strongyloides venezuelensis and their young offspring were used. For this, enzyme-linked immune-sorbent assay (ELISA) was conducted using alkaline parasite extracts and anti-L3 polyclonal antibody produced in rabbits. Findings revealed that young offspring from immunosuppressed females presented significantly higher positivity for IgG detection in serum samples and in BALF. In addition, antigen detection in serum samples was also more evident in offspring from immunosuppressed rats. Thus, we reinforce the transmammalianroute of Strongyloides infection in experimental model infection.
{"title":"TRANSMISIÓN TRANSMAMARIA DE ESTRONGILOIDIASIS EN RATAS INMUNOSUPRIMIDAS","authors":"Ana Lúcia Ribeiro Gonçalves, C. Silva, Edson Fernando Goulart de Carvalho, Marlene Tikudo Ueta, Julia Maria Costa-Cruz","doi":"10.24039/RNH201372977","DOIUrl":"https://doi.org/10.24039/RNH201372977","url":null,"abstract":"In order to investigate the levels of antibodies and antigen in sera and in broncho-alveolar lavage fluid (BALF) samples, female rats immunosuppressed or non-immunosuppressed female rats and rats experimentally infected with Strongyloides venezuelensis and their young offspring were used. For this, enzyme-linked immune-sorbent assay (ELISA) was conducted using alkaline parasite extracts and anti-L3 polyclonal antibody produced in rabbits. Findings revealed that young offspring from immunosuppressed females presented significantly higher positivity for IgG detection in serum samples and in BALF. In addition, antigen detection in serum samples was also more evident in offspring from immunosuppressed rats. Thus, we reinforce the transmammalianroute of Strongyloides infection in experimental model infection.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122484541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Iannacone, Cindy Cajachagua, B. Dueñas, L. Castillo, L. Alvariño, George Argota
Agave americana L. and Furcraea andina Trel. (Asparagaceae), are important species for search of new pesticide agents. The dipteran Culex quinquefasciatus is common in aquatic environments of Lima and causes painful stings in people. The gastropod Heleobia cumingii D'Orbigny, 1835 (Cochliopidae) is a native snail found in lotic and lentic aquatic environments of Peru. Thus, the aim of this study was to evaluate the effect of the insecticide and molluscicide of dry leaves powder and juice in aqueous of A. americana and F. andina on C. quinquefasciatus and H. cumingii. The end point was the mortality of the larvae of C. quinquefasciatus and of the snail H. cumingii. Bark of F. andina showed higher insecticidal effect in relation to other aqueous extracts in toto and periderm evaluated in both plant species. The extract in toto of A. americana showed a greater effect molluscicide in relation to the rest of aqueous aqueous extracts of bark and periderm evaluated in both plant species. Aqueous extracts of dry powder of A. americana and F. andina had higher insecticides than molluscicidal effects. Instead, the aqueous extracts juice from A. americana and F. andina showed greater molluscicides effects than insecticides.
{"title":"TOXICIDAD DE AGAVE AMERICANA Y FURCRAEA ANDINA (ASPARAGACEAE) SOBRE CULEX QUINQUEFASCIATUS (DIPTERA) Y HELEOBIA CUMINGII (MOLLUSCA)","authors":"J. Iannacone, Cindy Cajachagua, B. Dueñas, L. Castillo, L. Alvariño, George Argota","doi":"10.24039/RNH201372988","DOIUrl":"https://doi.org/10.24039/RNH201372988","url":null,"abstract":"Agave americana L. and Furcraea andina Trel. (Asparagaceae), are important species for search of new pesticide agents. The dipteran Culex quinquefasciatus is common in aquatic environments of Lima and causes painful stings in people. The gastropod Heleobia cumingii D'Orbigny, 1835 (Cochliopidae) is a native snail found in lotic and lentic aquatic environments of Peru. Thus, the aim of this study was to evaluate the effect of the insecticide and molluscicide of dry leaves powder and juice in aqueous of A. americana and F. andina on C. quinquefasciatus and H. cumingii. The end point was the mortality of the larvae of C. quinquefasciatus and of the snail H. cumingii. Bark of F. andina showed higher insecticidal effect in relation to other aqueous extracts in toto and periderm evaluated in both plant species. The extract in toto of A. americana showed a greater effect molluscicide in relation to the rest of aqueous aqueous extracts of bark and periderm evaluated in both plant species. Aqueous extracts of dry powder of A. americana and F. andina had higher insecticides than molluscicidal effects. Instead, the aqueous extracts juice from A. americana and F. andina showed greater molluscicides effects than insecticides.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133002349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Canine parasitosis studies, in particular those of Chrysocyon brachyurus Illiger, 1815, are limited. Additionally, there are only few reports in the north of Argentina. The purpose of this study was to expand the knowledge about the helmith parasites of C. brachyurus. Necropsies of two adult specimens of C. brachyurus from two protected areas of Corrientes Argentina, were done in our laboratory. The biological material consisted of the viscera taken from a male canine found in the Mburucuya National Park and from a female found in the Rincon de Santa Maria Reserve. Centrorhynchus guira Lunaschi & Drago, 2010 and Ancylostoma caninum Ercolani, 1859 helminthes were found in the intestine, and Doctophyme renale Goeze, 1782 was found in the right kidney of the specimen coming from the Mburucuya National Park. On the other hand, the specimen coming from the Rincon Santa Maria Reserve only presented with Mesocestoides sp Vaillant, 1863, in the small intestine. We here report for the first time, associations between C. guira - C. brachyurus and Mesocestoides sp. – C. brachyurus.
{"title":"NUEVOS HALLAZGOS DE HELMINTOS PARÁSITOS EN CHRYSOCYON BRACHYURUS (CARNIVORA: CANIDAE) EN ARGENTINA","authors":"Carlos González, A. M. F. Milano, L. Lunaschi","doi":"10.24039/RNH201372984","DOIUrl":"https://doi.org/10.24039/RNH201372984","url":null,"abstract":"Canine parasitosis studies, in particular those of Chrysocyon brachyurus Illiger, 1815, are limited. Additionally, there are only few reports in the north of Argentina. The purpose of this study was to expand the knowledge about the helmith parasites of C. brachyurus. Necropsies of two adult specimens of C. brachyurus from two protected areas of Corrientes Argentina, were done in our laboratory. The biological material consisted of the viscera taken from a male canine found in the Mburucuya National Park and from a female found in the Rincon de Santa Maria Reserve. Centrorhynchus guira Lunaschi & Drago, 2010 and Ancylostoma caninum Ercolani, 1859 helminthes were found in the intestine, and Doctophyme renale Goeze, 1782 was found in the right kidney of the specimen coming from the Mburucuya National Park. On the other hand, the specimen coming from the Rincon Santa Maria Reserve only presented with Mesocestoides sp Vaillant, 1863, in the small intestine. We here report for the first time, associations between C. guira - C. brachyurus and Mesocestoides sp. – C. brachyurus.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122945336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fasciola hepatica is a digenean that has a complex life cycle which includes a vertebrate host in which its sexual reproduction occurs, verifiable in experimental animals. The objective of this study was to estimate the invasive power (PI), extension invasion (EI) and the biotic potential of this digenean in Rattus norvegicus albinus Holtzman strain, infected experimentally with F. hepatica's metacercariae which was obtained from infected snails in nature, in two provinces. Twenty metacercariae were administered in semisolid diet to six specimens of R. norvegicus, which were maintained in bioterio under controlled environmental conditions. We made coproparasitological analysis by simple concentration and sedimentation technique from the 86 to 100 days post infection and then proceeded with necropsies. We observed that the average production of eggs by adult F. hepatica was 9135.70 ± 2196.8, invasive power from 6.67 to 8.33% and the extent of invasion of 66.67% in R. norvegicus.
{"title":"DESARROLLO DE FASCIOLA HEPATICA Y SU POTENCIAL BIÓTICO EN RATTUS NORVEGICUS HOLTZMAN","authors":"Paul Iturbe Espinoza, F. Pareja","doi":"10.24039/RNH201372983","DOIUrl":"https://doi.org/10.24039/RNH201372983","url":null,"abstract":"Fasciola hepatica is a digenean that has a complex life cycle which includes a vertebrate host in which its sexual reproduction occurs, verifiable in experimental animals. The objective of this study was to estimate the invasive power (PI), extension invasion (EI) and the biotic potential of this digenean in Rattus norvegicus albinus Holtzman strain, infected experimentally with F. hepatica's metacercariae which was obtained from infected snails in nature, in two provinces. Twenty metacercariae were administered in semisolid diet to six specimens of R. norvegicus, which were maintained in bioterio under controlled environmental conditions. We made coproparasitological analysis by simple concentration and sedimentation technique from the 86 to 100 days post infection and then proceeded with necropsies. We observed that the average production of eggs by adult F. hepatica was 9135.70 ± 2196.8, invasive power from 6.67 to 8.33% and the extent of invasion of 66.67% in R. norvegicus.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128657634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Monogenoidea represents a class of hermaphroditic Platyhelminthes ecto-parasitic of mainly fishes. They inhabit the gills, skin, nasal fossae, ureters and some intestinal ducts. Brazil is known as a country with rich fauna, flora and mineral resources, with more than 4000 species of freshwater fishes, representing approximately 31% of the world freshwater fish species. Abou 365 species of Monogenoidea described from Brazil is listed. The International Symposium on Monogenea (ISM) represents the most traditional event for researchers worldwide that study this group of parasites. During the Sixth ISM, in South Africa, Brazil had being elected the next venue (ISM 7). This is the first time in American continent that will enable the participation of researchers and students of the whole continent.
{"title":"SOBRE LA DIVERSIDAD DE LA FAUNA MONOGENOIDEA EN UN PAÍS MEGADIVERSO, BRASIL","authors":"S. C. Cohen","doi":"10.24039/RNH201371943","DOIUrl":"https://doi.org/10.24039/RNH201371943","url":null,"abstract":"Monogenoidea represents a class of hermaphroditic Platyhelminthes ecto-parasitic of mainly fishes. They inhabit the gills, skin, nasal fossae, ureters and some intestinal ducts. Brazil is known as a country with rich fauna, flora and mineral resources, with more than 4000 species of freshwater fishes, representing approximately 31% of the world freshwater fish species. Abou 365 species of Monogenoidea described from Brazil is listed. The International Symposium on Monogenea (ISM) represents the most traditional event for researchers worldwide that study this group of parasites. During the Sixth ISM, in South Africa, Brazil had being elected the next venue (ISM 7). This is the first time in American continent that will enable the participation of researchers and students of the whole continent.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124052206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
La valvula espiral (intestino) de un tiburon toro Carcharhinus leucas (Valenciennes, 1841) capturado en la pesca artesanal de playa Chachalacas, Veracruz Mexico fue examinado en busca de helmintos parasitos. Se colectaron 303 cestodos pertenecientes a ocho especies: Callitetrarhynchus cf. gracilis; Cathetocephalus cf. thatcheri; Eutetrarhynchidae sp.; Otobothrium sp. 1; Otobothrium sp. 2; Paraorygmatobothrium sp. 1; Paraorygmatobothrium sp. 2 y Phoreiobothrium sp. El tiburon toro se alimenta de una amplia gama de presas principalmente peces oseos, llegando a albergar un gran numero de especies de cestodos. Este es el primer registro de cestodos en el tiburon toro para las costas de Veracruz Mexico
{"title":"Céstodos del tiburón toro Carcharhinus leucas en Playa Chachalacas, Veracruz, México","authors":"Oscar Méndez, M. González","doi":"10.24039/RNH201371959","DOIUrl":"https://doi.org/10.24039/RNH201371959","url":null,"abstract":"La valvula espiral (intestino) de un tiburon toro Carcharhinus leucas (Valenciennes, 1841) capturado en la pesca artesanal de playa Chachalacas, Veracruz Mexico fue examinado en busca de helmintos parasitos. Se colectaron 303 cestodos pertenecientes a ocho especies: Callitetrarhynchus cf. gracilis; Cathetocephalus cf. thatcheri; Eutetrarhynchidae sp.; Otobothrium sp. 1; Otobothrium sp. 2; Paraorygmatobothrium sp. 1; Paraorygmatobothrium sp. 2 y Phoreiobothrium sp. El tiburon toro se alimenta de una amplia gama de presas principalmente peces oseos, llegando a albergar un gran numero de especies de cestodos. Este es el primer registro de cestodos en el tiburon toro para las costas de Veracruz Mexico","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114984128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luz Dary Solarte Paredes, Rubiela Castañeda Salazar, A. Villamarín
Para determinar la prevalencia de Toxocara canis Werner, 1782 , Ancylostoma caninum Ercolani, 1859 e Isospora canis Meneseri, 1959 en perros callejeros del centro de zoonosis de Bogota, Colombia, se obtuvieron un total de 70 muestras de materia fecal, colectadas del suelo de cada encierro donde se encontraban los caninos capturados en 11 localidades; un “pool” correspondio a una muestra por localidad, se realizaron tres muestreos seriados y cada muestra se analizo macroscopica y microscopicamente mediante tecnicas coprologicas cualitativas y cuantitativas para determinar la presencia de huevos de helmintos u ooquistes. Se encontro una positividad del 88,6% (n= 62) en el total las muestras, donde el 52,9% correspondio a A. caninum, el 7,1% a T. canis, el 24,3% a infecciones mixtas por A. caninum y T. canis, el 1,4% a A. caninum, T. canis e I. canis y el 2,9% a infecciones por A. caninum e I. canis. Las localidades que presentaron el 100% de positividad fueron Usme, Bosa, Chapinero, Ciudad Bolivar y Kennedy. En las otras localidades muestreadas los porcentajes se presentaron entre el 70-80%. Los perros callejeros provenientes de las localidades muestreadas presentaron mono y/o poliparasitismo, dos de los cuales implican un potencial zoonotico (A. caninum y T. canis), lo que representa riesgo de contaminacion tanto humana como animal por la eliminacion al ambiente de altas cargas parasitarias
Toxocara患病率为确定canis Werner, 1782 Ancylostoma caninum Ercolani、1859 Isospora canis Meneseri 1959年在流浪狗中心人畜二氧化碳、哥伦比亚,总共获得了70个粪便样本,样本colectadas土壤每所监狱被俘野狗在11个地点;本研究的目的是确定在墨西哥恰帕斯州阿塔卡马沙漠的一个地区是否存在卵或蠕虫卵，以及在墨西哥恰帕斯州阿塔卡马沙漠的一个地区是否存在卵或蠕虫卵。找到一个实证性88,6% (n = 62)在总样本,其中52.9% correspondio canis . a . caninum 7.1%, 24.3%混合感染a . caninum和canis, 1.4% . a . caninum . canis和i . canis 2.9% a . caninum e i . canis感染。100%阳性的地点是Usme、Bosa、Chapinero、Ciudad Bolivar和Kennedy。在其他抽样地区，这一比例在70-80%之间。来自抽样地区的流浪狗表现出单寄生和/或多寄生，其中两种具有人畜共患病的潜力(A. caninum和T. canis)，这代表了人类和动物污染的风险，消除了环境中的高寄生虫负荷
{"title":"Parásitos gastrointestinales en perros callejeros del centro de zoonosis de Bogotá D.C., Colombia","authors":"Luz Dary Solarte Paredes, Rubiela Castañeda Salazar, A. Villamarín","doi":"10.24039/RNH201371951","DOIUrl":"https://doi.org/10.24039/RNH201371951","url":null,"abstract":"Para determinar la prevalencia de Toxocara canis Werner, 1782 , Ancylostoma caninum Ercolani, 1859 e Isospora canis Meneseri, 1959 en perros callejeros del centro de zoonosis de Bogota, Colombia, se obtuvieron un total de 70 muestras de materia fecal, colectadas del suelo de cada encierro donde se encontraban los caninos capturados en 11 localidades; un “pool” correspondio a una muestra por localidad, se realizaron tres muestreos seriados y cada muestra se analizo macroscopica y microscopicamente mediante tecnicas coprologicas cualitativas y cuantitativas para determinar la presencia de huevos de helmintos u ooquistes. Se encontro una positividad del 88,6% (n= 62) en el total las muestras, donde el 52,9% correspondio a A. caninum, el 7,1% a T. canis, el 24,3% a infecciones mixtas por A. caninum y T. canis, el 1,4% a A. caninum, T. canis e I. canis y el 2,9% a infecciones por A. caninum e I. canis. Las localidades que presentaron el 100% de positividad fueron Usme, Bosa, Chapinero, Ciudad Bolivar y Kennedy. En las otras localidades muestreadas los porcentajes se presentaron entre el 70-80%. Los perros callejeros provenientes de las localidades muestreadas presentaron mono y/o poliparasitismo, dos de los cuales implican un potencial zoonotico (A. caninum y T. canis), lo que representa riesgo de contaminacion tanto humana como animal por la eliminacion al ambiente de altas cargas parasitarias","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123896018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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