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  • Title: [Annual follow-up of the gastrointestinal parasitosis of white-tailed deer Odocoileus virginianus (Artiodactyla: Cervidae) in captivity in Yucatán, México].
    Author: Montes Pérez RC, Rodríguez Vivas RI, Torres Acosta JF, Ek Pech LG.
    Journal: Rev Biol Trop; 1998 Sep; 46(3):821-7. PubMed ID: 10347819.
    Abstract:
    Gastrointestinal parasites, and egg and oocyst output in the faeces of captive white-tailed deer (Odocoileus virginianus yucatanensis) were recorded in Yucatan, Mexico. Feces were obtained from from January through December 1995 (ten samples every two weeks per place). Samples were processed by flotation and the McMaster techniques. Faecal cultures for L3 larvae were made by the Corticelli-Lai technique. Oocysts in faeces were cultured in 2% potassium dicromate. Seven genera were determined (Haemonchus spp., Cooperia spp, Isospora spp., Eimeria spp., Trichuris spp., Strongyloides spp. and Moniezia spp.) which represent five orders. The most frequent genera were Haemonchus, Isospora and Eimeria. The genus Isospora is reported for the first time in deer of this region, although it was not possible to explain the source of this parasite. The frequency and level of faecal egg and oocyst outputs were variable during the year and increased during the rainy season. There was a positive correlation between relative humidity, environmental temperature and rainfall with the coccidia and strongylida orders. In the central zone of Yucatan the meteorological conditions during the rainy season are favourable for the development of gastrointestinal parasitism which enable an increased risk of infection for deer.
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