Browsing by Subject "Gazella cuvieri"

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    Oral administration of mebendazole failed to reduce nematode egg shedding in captive African gazelles
    (AOSIS Publishing, 2000-11-24) Ortiz Sánchez, Juana; Ruiz de Ybáñez Carnero, María del Rocío; Abaigar, Teresa; Garijo, M. Magdalena; Espeso, Gerardo; Cano, Mar; Sanidad Animal
    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 groups
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    Records of Eimeria spp. and their patterns of excretion in captive North African Gazelles
    (Helminthological Society of Washington, 2001) Ruiz de Ybáñez Carnero, María del Rocío; Ortiz, Juana; Garijo Toledo, María Magdalena; Espeso, Gerardo; Abaigar, Teresa; Cano, Mar; Sanidad Animal
    The species of Eimeria occurring in 3 species of captive gazelles (Gazella dama mhorr, Gazella cuvieri, and Gazella dorcas neglecta) were identified. This is the first report of Eimeria pallida, Eimeria elegans, and Eimeria gazella in these hosts and also the first report of E. elegans and E. gazella in Spain. Feces were collected from each of 9 young gazelles for periods of 3-7 mo to determine their oocyst shedding profile. Most oocysts appeared at 20-25 d, peaked, and decreased to undetectable levels between 40 and 115 d. Eimeria gazella delayed its excretion, which continued at low levels throughout the observation stage. No clinical signs of infection were observed in the gazelles during the study.
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    Zoological institutions as hotspots of gastrointestinal parasites that may affect the success of ungulate reintroduction programmes
    (Wiley, 2021-05-21) Moreno, Eulalia; Pérez Cutillas, Pedro; Gilbert, Tania; Ortiz Sánchez, Juana; Valera, Francisco; Espeso, Gerardo; Benzal, Jesús; Ibáñez, Belén; Ruiz de Ybáñez Carnero, María del Rocío; Gonzálvez Juan, Moisés; Sanidad Animal
    Background: Ungulates from zoological institutions are frequently used as founders in reintroduction programmes. These animals are subject to specific parasite management as parasitic infections have previously been associated with failed Bovidae reintroductions. Methods: Questionnaires to obtain data on how these institutions screen for seasonal parasite presence and the clinical signs they induced in threatened ungulates were sent to 65 institutions involved in European Ex situ Programmes (58.5% response rate). Temperature and relative humidity datawere also obtained to categorize each zoological centre. Results: Strongyloides spp. (52.6%), Trichuris spp. (42.1%), Trichostrongylidae family (39.4%) and Eimeria spp. (36.8%) were the most frequently reported parasites in the received questionnaires. Climatic variables did not influence parasite presence. Conclusion: Our results suggest that artificial microenvironments created by husbandry practices and enclosure design in zoos could create hotspots for gastrointestinal parasites. To maximise the success of reintroduction projects, we recommend that the influence of microclimates on parasite burdens be evaluated.