Abstract

AVENDANO, Catalina; AMAYA, Álvaro  and  BAYONA, Martín. CARACTERIZACIÓN EPIDEMIOLÓGICA DE LA CRIPTOSPORIDIOSIS EN BOVINOS EN LA REGIÓN SABANA CENTRO (CUNDINAMARCA): EPIDEMIOLOGIC CHARACTERIZATION OF CRYPTOSPORIDIOSIS IN CATTLE IN THE CENTER SABANA REGION (CUNDINAMARCA). rev.udcaactual.divulg.cient. [online]. 2010, vol.13, n.2, pp.109-116. ISSN 0123-4226.

In order to contribute to the knowledge of cryptosporidiosis, the prevalence of Cryptosporidium spp. in calves and the association of the oocysts presence, related to different environmental factors was studies in 151 samples collected from faeces of calves up to one month old in the region Sabana Centro (Cundinamarca). To identify the Cryptosporidium spp. oocysts the Ziehl Neelsen technique was employed. 22% of the samples were positive; 83% of farms had at least one infected animal. Statistical analysis showed an association between the consistency of the stool and the presence of Cryptosporidium spp. oocysts (X² 16.3, p < 0.01); the water source of the farms showed a statistically significant influence when compared with the presence of oocysts in the feces (X² 11.79, p < 0.008), being a risk factor the aqueduct water, contrary to expectations, the farm treated water showed a protective effect. Likewise, we obtained a statistically significant relationship between the type of accommodation and the presence of oocysts (X² 7.23, p < 0.02), with a greater likelihood of finding oocysts in animals that were in stake than those which remained in cowshed (OR> 4.03). The results confirm that Cryptosporidium spp. infection is widespread in dairy herds in the geographical study area.

Keywords : Cryptosporidium; calves; feces; Ziehl Neelsen; diarrea.

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