ANNUAL MONITORING OF GASTROINTESTINAL PARASITOSIS OF THE COLLARED PECCARY (PECARI TAJACU) IN CAPTIVITY
ANNUAL MONITORING OF GASTROINTESTINAL PARASITOSIS OF THE COLLARED PECCARY (PECARI TAJACU) IN CAPTIVITY
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DOI: https://doi.org/10.22533/at.ed.973442425036
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Palavras-chave: pecari de collar, Pecari tajacu, Parasitosis, Coccidia, Helminto, Monitoreo anual
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Keywords: collared peccary, Pecari tajacu, Parasitosis, Coccidia, Helminth, Annual monitoring.
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Abstract:
The objectives of this research were to determine the genera of gastrointestinal parasites of Pecari tajacu in captivity; estimate the prevalence of gastrointestinal parasitosis, measure the number of coccidial oocysts and nematode eggs per gram of feces, evaluate the relationship between prevalence and egg excretion.
The research was descriptive and longitudinal with wild animals in captivity. The study site was the “Xmatkuil” Wildlife Conservation Management Unit, in Mérida, Yucatán, Mexico. The duration of the research was one year. Fecal samples of Pecari tajacu were collected from the rectum in confinement every month for a year. The genera of gastrointestinal parasites were determined by the MacMaster and centrifugal flotation techniques. The prevalence and quantity of eggs and oocysts excreted per gram of feces were calculated. A linear regression model was fitted between the number of eggs excreted and the prevalence. Two genera of the order Eucoccidiida were determined: Eimeria, Isospora, and a genus of the Strongylidae family: Oesophagostomum. The prevalence of Oesophagostomum was 33.3% to 100% throughout the year. The prevalence of the order Eucoccidiida was from 60% to 93.3% during the year. Individual discharges ranged from 0 to 5100 eggs/gram and from 0 to 15900 oocysts/gram. A linear regression model was fitted between the prevalence of Oesophagostomum parasitosis and the discharge of eggs/gram. It is concluded that the gastrointestinal parasitosis of P. tajacu by Oesophagostomum occurred throughout the year. The prevalence of Eucoccidiida was relatively higher than that of Oesophagostomum. The average number of oocysts per gram of feces was greater than that of eggs per gram. The linear regression model between helminth prevalence and Oesophagostomum egg excretion is significant.
- Ruben Montes Perez
- María del Rosario Zapata-Escobedo
- Fausto Javier Montes-Cruz