11 research outputs found

    First report of Marshallagia dentispicularis from sheep in Europe

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    © 2004 W. Stefañski Institute of Parasitology, PAS. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ This document is the Accepted version of a Published Work that appeared in final form in Acta Parasitologica.During post mortem examination of 181 sheep, a total of 16 male and 26 female nematodes were identified as Marshallagia dentispicularis. This is the first report of the parasite in European sheep. A complete description of the species is given

    Oral administration of mebendazole failed to reduce nematode egg shedding in captive African gazelles

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    ©2000. This manuscript version is made available under the CC BY 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. This document is the Published, version of a Published Work that appeared in final form in Onderstepoort journal of veterinary research .Idiosyncracies are observed in captive wild animals as regards the pharmacokinetics and efficacy of anthelmintics. This could be attributed to such factors as differences in host's metabolism, irregular distribution of anthelmintics due to the way they are administered and worm resistance to anthelmintics. Previously mebendazole was found to be poorly effective when administered in feed. An experiment was conducted to evaluate the efficacy of mebendazole when administered at the dosage rate of 15-20 mg/kg body weight to gastrointestinal nematodes in captive gazelles. Fifty-eight adult gazelles (Gazella cuvien) were divided into four groups: T1 (animals dosed orally, directly into the mouth), T2 (treated orally, mixed in the water of a herd), T3 (treated orally, mixed in the water of one animal), and T4 (not treated). Individual faecal samples were taken before treatment, and 15 days thereafter. Mean percentages of reduction of egg shedding were calculated for Nematadirus spp., other trichostrongyles, total trichostrongylids, Trichuris spp. and total nematodes. No statistically significant differences were detected between the treatment groups and the control group or among the animals in the three treatment group

    Nematodosis gastrointestinales en el ganado ovino de la región de Murcia (sureste de España)

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    © 2007 Sociedad Española de Parasitología (SEP). This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ This document is the Published, version of a Published Work that appeared in final form in Revista Ibérica de Parasitología.El presente trabajo analiza la presencia de nematodos digestivos en el ganado ovino adulto de la Región de Murcia (Sureste español). Se examinaron un total de 181 ovejas adultas sacrificadas en un matadero regional. Destaca la alta prevalencia encontrada, ya que el 91,7% de los animales estaban parasitados. Los nematodos recuperados, por orden de prevalencia, fueron: Teladorsagia circumcincta (presente en el 83,8% de los animales parasitados), Marshallagia marshalli (62,3%), Nematodirus fili-collis (59,2%), N. abnormalis (33,8%), N. spathiger (30%), Trichostrongylus colubriformis (29,2%), Ostertagia trifurcata (26,9%), T. vitrinus (26,1%), T. axei (8,5%), Grosspiculagia occidentalis (7,7%), T. capricola (3,1%), O. davtiani (1,5%), Bunostomum tri-gonocephalum (0,7%) y Haemonchus contortus (0,7%). Se discute la prevalencia de estas nematodosis entre las diferentes comar-cas ganaderas de la Región de Murci

    Trematodosis y cestodosis en el ganado ovino de la región de Murcia (sureste de España)

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    ©2005 Sociedad Española de Parasitología (SEP). This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ . This document is the Published, version of a Published Work that appeared in final form in Revista Ibérica de Parasitología.El presente trabajo analiza la presencia de trematodos y cestodos digestivos en el ganado ovino adulto de la Región de Murcia (Sureste español). Se examinaron un total de 181 ovejas sacrificadas en un matadero regional. De ellas, 58 (32%) estaban parasitadas con trematodos hepáticos, todos ellos de la especie Dicrocoelium dendriticum. También se encontraron cestodos en el intestino delgado de 35 animales (19,3%). Se identificaron tres especies: Avitellina centripunctata (hallada en el 13,8% de los animales analizados), seguida de Moniezia expansa (3,3%) y Stilesia globipunctata (2,8%). Se discute la influencia de las características de cada comarca ganadera en la presencia de estos parásitos.The present work analyses the presence of trematodes and intestinal cestodes in adult sheep of the Region of Murcia (Southeast of Spain). A total of 151 animals, slaughtered in a regional abattoir were examined. Fifty-eight (32%) were infected by Dicrocoelium dendriticum. Cestodes were also found in the small intestine of 35 animals (19.3%). Three species were identified: Avitellina centripunctata (in the 13.8% of the examined animals), Moniezia expansa (3.3%) and Stilesia globipunctata (2.8%). The influence of every region’s characteristics in the presence of these parasites is discussed

    Cestodosis larvarias en el ganado ovino de la región de Murcia (sureste de España)

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    ©2005 Sociedad Española de Parasitología (SEP). This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0/. This document is the Published version of a Published Work that appeared in final form in Revista Ibérica de Parasitología.El presente estudio se realiza con la intención de conocer el estado parasitario del ganado ovino adulto de la región de Murcia (Sureste español) en relación a las cestodosis larvarias. Para tal fin, se examinaron un total de 151 ovejas adultas sacrificadas en un matadero regional, de las cuales tres (1,67%) presentaban Coenurus cerebralis en el hemisferio cerebral izquierdo, un total de 18 animales (9,94%) mostraron la presencia de Cysticercus tenuicollis, vesiculas siempre localizadas en membranas serosas de la cavidad abdominal y en la superficie hepática, mientras que ningún animal demostró la presencia de quiste hidatídico alguno.In the present study, the presence of metacestodes in adult ewes of the region of Murcia (Southeast of Spain) have been evaluated. A total of 151 animals, slaughtered in a regional abattoir were examined. Three of them (1.67%) had Coenurus cerebralis in the left cerebral hemispheric. A total of 18 animals (9.94%) were infected by Cysticercus tenuicollis, all located in the abdominal cavity, serosal membranes and hepatic surface. Hydatid cyst were no observed in any of the examined animals

    Nematodosis broncopulmonares en el ganado ovino de la región de Murcia (sureste de España).

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    © 2007. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ This document is the Published version of a Published Work that appeared in final form in Revista Ibérica de Parasitología.El presente trabajo analiza la presencia de nematodos broncopulmonares en el ganado ovino adulto de la Región de Murcia (Sureste español). Se examinaron un total de 181 ovejas adultas sacrificadas en un matadero regional. El 72,4% de los animales estaban parasitados por alguna de las siguientes especies, citadas por orden de prevalencia: Cystocaulus ocreatus (67,7%), Neostrongylus linearis (63%), Muellerius capillaris (42,5%), Dictyocaulus filaria (7,7%) y Protostrongylus rufescens (4,7%). Se discute la prevalencia de estas nematodosis entre las diferentes comarcas ganaderas de la Región de Murcia.The present work analyses the presence of lungworms in adult sheep of the Region of Murcia (Southeast of Spain). The 72,4% of the animals were parasited by any of the following species: Cystocaulus ocreatus (67,7%), Neostrongylus linearis (63%), Muellerius capillaris (42,5%), Dictyocaulus filaria (7,7%) y Protostrongylus rufescens (4,7%).The prevalence of these nematodoses in the different areas of the Region is discussed

    The genetic architecture of the human cerebral cortex

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    The cerebral cortex underlies our complex cognitive capabilities, yet little is known about the specific genetic loci that influence human cortical structure. To identify genetic variants that affect cortical structure, we conducted a genome-wide association meta-analysis of brain magnetic resonance imaging data from 51,665 individuals. We analyzed the surface area and average thickness of the whole cortex and 34 regions with known functional specializations. We identified 199 significant loci and found significant enrichment for loci influencing total surface area within regulatory elements that are active during prenatal cortical development, supporting the radial unit hypothesis. Loci that affect regional surface area cluster near genes in Wnt signaling pathways, which influence progenitor expansion and areal identity. Variation in cortical structure is genetically correlated with cognitive function, Parkinson's disease, insomnia, depression, neuroticism, and attention deficit hyperactivity disorder

    Helminths in a giraffe (Giraffa camelopardalis giraffa) from a zoo in Spain

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    ©2004. This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0/. This document is the, Published version of a Published Work that appeared in final form in Onderstepoort Journal of Veterinary Research. To access the final edited and published work see https://doi.org/10.4102/ojvr.v71i2.277A pregnant female Cape giraffe (Giraffa camelopardalis giraffa) died from an unknown cause in the Aitana Zoo, Alicante, Spain. Neither clinical signs nor macroscopic lesions were observed at necropsy. The alimentary tract was removed and examined for parasites. A total of 2 724 nematodes were found, including Camelostrongylus mentulatus, Trichostrongylus axei, Ostertagia ostertagi, Teladorsagia circumcincta, Teladorsagia trifurcata, Marshallagia marshalli, Trichostrongylus vitrinus, Trichostrongylus colubriformis, Spiculopteragia asymmetrica and Trichuris giraffae. Only T. giraffae and C. mentulatus have been previously reported from giraffes. The other nematodes are common in mouflons, fallow and red deer, which can usually be found in the same paddock as the giraffes in Aitana Zoo. Although its occurrence is unusual in this host, C. mentulatus was the most abundant nematode in our giraffe. This parasite has been related to disease, and even death, in several wild ruminants

    First description of gastrointestinal nematodes of Barbary sheep (Ammotragus lervia): the case of Camelostrongylus mentulatus as a paradigm of phylogenic and specific relationship between the parasite and its ancient host

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    © Springer Science+Business Media Dordrecht 2013. This document is the Published, version of a Published Work that appeared in final form in Veterinary Research Communications. To access the final edited and published work see https://doi.org/10.1007/s11259-013-9563-0The gastrointestinal helminth fauna of 24 Barbary sheep or Aoudad (Ammotragus lervia sahariensis) maintained in the Parque de Rescate de la Fauna Sahariana (PRFS, CSIC, Almeria, Spain) was analyzed. Most animals (87.5 %) were parasitized, and multiple infections were highly present. The following species were identified: Camelostrongylus mentulatus, Teladorsagia circumcincta, Marshallagia marshalli, Ostertagia ostertagi, O. leptospicularis, O. lyrata, Haemonchus contortus, Teladorsagia trifurcata, Trichostrongylus vitrinus, T. colubriformis, T. probolorus, T. capricola, Nematodirus spathiger, N. abnormalis, N. filicollis, N. helvetianus, Trichuris spp. and Skrjabinema ovis. Teladorsagia circumcincta was the most prevalent nematode in abomasum (52.6 %) followed by C. mentulatus (50 %). However, this latter nematode had the greater mean intensity and abundance. In the small intestine, T. colubriformis and T. vitrinus had the highest prevalence (36.4 %); the last one showed also the greater mean intensity and abundance. It should be emphasized the presence of Skrjabinema ovis (prevalence 39.1 %) in the large intestine, showing the greater mean abundance and intensity, although with a low values. Camelostrongylus mentulatus could be the most primitive nematode of the family trichostrongylidae recovered in this study; attending to its high prevalence, mean abundance and mean intensity, the possible specificity between this parasite and the Aoudad is discussed

    Periparturient increase in faecal egg counts in a captive population of mohor gazelle (Gazella dama mhorr)

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    ©2004.Wiley. This document is the Published, version of a Published Work that appeared in final form in Veterinary Record. To access the final edited and published work see https://doi.org/10.1136/vr.154.2.49The objective of this study was to assess whether there was a periparturient rise in the faecal egg output of a population of North African gazelles (Gazeia dama mhorr) kept in captivity in Almeria, southern Spain. In one experiment faeces were collected from 47 female gazelles on three days in winter, in November and December 1995 and January 1996; in a second experiment faecal samples were collected from nine pregnant gazelles at weekly intervals from July 1996 to June 1997. The mean trichostrongylid faecal egg counts were significantly higher (P<0-05) in the periparturient gazelles than in the pregnant and nonpregnant animals only when the births took place in winter. Other factors, including the gazelle's age, its level of inbreeding, the number of previous births, and its trichostrongylid egg output at the beginning of the study did not affect whether it showed a periparturient rise. The parasites responsible for the rise were different in the two experiments
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