Browsing by Subject "Parasites"
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- PublicationOpen AccessCestodosis larvarias en el ganado ovino de la región de Murcia (sureste de España)(2005-01-01) Garijo Toledo, M. Magdalena; Alonso de Vega, Francisco; Martínez Carrasco-Pleite, Carlos; Ruiz de Ybáñez Carnero, María del Rocío; Sanidad AnimalEl 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.
- PublicationRestrictedEpidemiological study of non-systemic parasitism in dogs in Southeast Mediterranean Spain assessed by coprological and post-mortem examination(Wiley, 2007-06-01) Martínez Carrasco-Pleite, Carlos; Berriatua, Eduardo; Garijo Toledo, María Magdalena; Martínez, José; Alonso de Vega, Francisco D.; Ruiz de Ybáñez Carnero, María del Rocío; Sanidad AnimalThe prevalence and risk factors of non-systemic canine ecto- and endoparasitism and anthelminthic use in Murcia located at the centre of the Spanish Mediterranean coastal arch, was investigated by coprology and necropsy in up to 275 pet, city shelter and stray dogs in 2001–2004. Faecal parasite stages were detected in 25% of dogs. Species frequency was 6–10% for Toxocara canis, Ancylostomatidae spp., Toxascaris leonina and Isospora canis, and 0.4–1% for Trichuris vulpis, Giardia lamblia, and Dipylidium caninum. Logistic regression indicated that the risk of intestinal parasitism was highest for dogs £1 year old, in the middle to low weight range and kept at the city shelter. Although risk factors varied according to the species, T. canis was most common in <1 year old and Ancylostomatidae spp. was more prevalent in older dogs. This suggests that the dominant species was Uncinaria spp. and not the more zoonotically important Ancylostoma spp. This was further supported by necropsy findings; however, the degree of agreement between post-mortem and coprological examination for intestinal parasites was generally poor. Necropsy revealed 10% G. lamblia, 12% Taenia spp. 38% D. caninum infections. Fleas, ticks and lice were also found in 38%, 6% and 2% of necropsied stray dogs. These results demonstrate the need for an urgent parasite control programme at the city dog shelter and the need to improve the owner’s education on zoonotic risks, the proper use of anthelminthics, and other parasite control practices.
- PublicationRestrictedFirst 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(Springer Science+Business Media Dordrecht, 2013-04-25) Mayo, Elvira; Ortiz, Juana; Martínez Carrasco-Pleite, Carlos; Garijo, M. Magdalena; Espeso, Gerardo; Hervías, Sandra; Ruiz de Ybáñez Carnero, María del Rocío; Sanidad AnimalThe 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.
- PublicationOpen AccessGastrointestinal parasites in red‑legged partridges (Alectoris rufa) hunted in Spain: a warning to game managers(2022-07-07) Martínez Carrasco-Pleite, Carlos; Tizzani, Paolo; Berriatua, Eduardo; Ruiz de Ybáñez Carnero, María del Rocío; Arcenillas Hernández, Irene; Sanidad AnimalRed-legged partridge (Alectoris rufa) populations are currently declining in the Iberian Peninsula, mainly due to habitat degradation and hunting pressure. In addition, the release of farm-reared partridges may introduce pathogens, including parasites, to wild populations. The presence of digestive parasites in red-legged partridges hunted in ffteen Spanish provinces was studied. Fecal samples and gastrointestinal tracts were collected, analyzed, and the morphometric identifcation of parasites was carried out. Eimeria spp. oocysts, nematode, cestode and trematode eggs were observed in fecal samples. Adult nematodes (Ascaridia galli, Ascaridia compar, Heterakis gallinarum, Heterakis tenuicauda, Trichostrongylus tenuis, Subulura spp., Cyrnea spp. and Aonchotheca caudinfata), tapeworms (Raillietina tetragona, R. echinobothrida, R. micracantha, Rhabdometra nigropunctata, and Choanotaenia infundibulum), and trematodes (Brachylaima spp., Brachylecithum spp., Dicrocoelium spp.) were identifed in the gastrointestinal tracts. Signifcant statistical diferences were found among climatic regions in the prevalence and intensity of Eimeria spp. infection, median intensity and the prevalence of indirect life cycle helminths, with Southern areas always showing higher infection values. The study provides information of the health status of red-legged partridges in Spain, highlighting the risk associated with the release of farm-reared partridges for restocking purposes. This should be taken into account to improve management strategies for the long-term conservation of the species.
- PublicationOpen AccessNematodosis broncopulmonares en el ganado ovino de la región de Murcia (sureste de España).(2007-01-01) Garijo Toledo, M. Magdalena; Alonso de Vega, Francisco; Martínez Carrasco-Pleite, Carlos; Ruiz de Ybáñez Carnero, María del Rocío; Sanidad AnimalEl 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.
- PublicationOpen AccessParasitofauna survey of song thrushes (Turdus philomelos) from the eastern part of Spain(Elsevier, 2020-12) Cardells-Peris, Jesús; Ortega-Porcel, Joaquín; Ruiz de Ybáñez Carnero, María del Rocío; Martínez-Herrero, María Carmen; Garijo Toledo, María Magdalena; Gonzálvez Juan, Moisés; Sanidad AnimalThrushes (Turdus spp.) are migratory passerine birds found in northern Europe during the summer months and in southern Europe and north of Africa during the winter. They constitute an important small game bird group very appreciated by Spanish hunters. Between October 2013 and February 2014, 90 adult song thrushes were collected for their exam. After necropsies, three species of helminths were macroscopically recovered from 15 birds (16.7%): Morishitium sp. (16.7%), Splendidofilaria mavis (6.7%) and Dilepis undula (7.8%). One of them showed an adult cestode in the lung. Moreover, 12 of the positive thrushes (80%) harboured microfilaria in pulmonary blood vessels and three of them (20%) were infected by Sarcocystis sp. on skeletal musculature. All parasitized birds showed lesions, ranging from mild to moderate airsacculitis, bronchitis and coelomitis associated to Morishitium sp. infection. To the authors' knowledge, this is the first description of Sarcocystis spp. in song thrushes from Spain. Our results reveal the need for further studies to evaluate the epidemiological role of song thrushes as spreaders of parasites during their annual migration
- PublicationOpen AccessPreservation of macroparasite species via classic plastination: an evaluation(Parazitologický ústav AVČR, 2018-12-19) Ortiz Sánchez, Juana; Navarro, María; Latorre Reviriego, Rafael Manuel; Gonzálvez Juan, Moisés; Sanidad AnimalPlastination is a preservation method for biological specimens, with important advantages over classic conservation tech niques with formaldehyde or alcohol. Plastinated specimens are dry, odourless, and free of carcinogenic and toxic solutions. There are only few references about the plastination of parasites. Moreover, there is no information on the effect of plastination on the morphology and morphometry of these animals. The aim of this study was to define a plastination protocol to preserve various species of parasites, namely the nematodes Parascaris equorum (Goeze, 1782); Ascaris suum Goeze, 1782 and Dirofilaria immitis (Leidy, 1856); the acanthecephalan Macracanthorhynchus hirudinaceus (Pallas, 1781); the trematodes Fasciola hepatica Linnaeus, 1758 and Dicrocoelium dendriticum (Rudolphi, 1819) and the tapeworm Taenia sp. in the best morphological and morphometric conditions. Results showed that some individuals suffered collapse (P. equorum, A. suum, and D. dendriticum). However, other parasites presented good results with almost no change after plastination (D. immitis, M. hirudinaceus and F. hepatica). In conclusion, conventional plastination allowed anatomical preservation of all helminths tested, but modifications to the protocol are needed to prevent collapse.
- PublicationOpen AccessSurvey of husbandry practices for bovidae in zoos: the importance of parasite management for reintroduction programmes(Wiley. British Veterinary Association, 2019-03-02) Moreno Mañas, Eulalia; Ruiz de Ybáñez Carnero, María del Rocío; Gilbert, Tania; Ortiz Sánchez, Juana; Espeso, Gerardo; Benzal, Jesús; Ibáñez, Belén; Valera Hernández, Francisco; Gonzálvez Juan, Moisés; Sanidad AnimalAnimals from zoological institutions may be used for reintroductions. These individuals are considered healthy, but they are not necessarily free of parasites, despite the minimum husbandry standards required of zoological institutions as described in the European Association of Zoos and Aquaria guidelines. In this sense, parasitism has been identified as the cause of failure, or has added difficulties, in some reintroduction programmes. Here the authors attempt to summarise the risk of parasitism to animals originating from zoological institutions by analysing a questionnaire about parasite prevalence, sampling methods, treatment and control in three ungulates in European zoos. Completed questionnaires were received from 38 institutions (58.5 per cent response rate). Most of the responding institutions (97 per cent) detected the eggs of endoparasites in faeces, but only one reported ectoparasites. Most institutions followed a similar preventive schedule, with ivermectin as the preferred prophylactic treatment for parasites, commonly administered in food every six months. The frequent use of concentrating flotation techniques as the sole method to evaluate the presence of parasite eggs in faecal samples is not recommended because it fails to detect trematode and lung nematode infections, so it would be better to use flotation techniques together with sedimentation procedures or serological and molecular tests. The results suggest that parasite control in zoological institutions can be complicated, indicating the need to implement a specific management schedule for institutions involved in reintroduction projects.