Abstract
Faecal specimens from diarrhoeic pre-weaned lambs (n = 171) and goat kids (n = 118) were collected in 37 sheep and 23 goat flocks, respectively, from NW Spain and microscopically examined for the presence of Cryptosporidium oocysts. Positive specimens were selected for molecular characterization. Presence of Cryptosporidium oocysts were significantly higher in specimens from goat kids (62.7 %) than from lambs (31.6 %). PCR products of the SSU rRNA locus were obtained for 108 isolates, and three Cryptosporidium species were identified. Cryptosporidium parvum was the most common species identified from both lambs (74.4 %) and goat kids (93.8 %). The remaining PCR products from lambs (25.6 %) and goat kids (7.7 %) were identified as Cryptosporidium Ubiquitum and Cryptosporidium xiaoi, respectively. Five C. parvum subtypes were identified; IIaA13G1R1, IIaA14G2R1, IIaA15G2R1 and IIaA16G3R1 were found in both host species, and IIdA17G1 was only detected in goat kids. Subtype IIaA15G2R1 was the most common and widely distributed. The present study provides the first description of subtypes IIaA13G1R1 in both small ruminant species, IIaA14G2R1 in sheep and IIaA16G3R1 in goats. Our results also reveal that diarrhoeic pre-weaned lambs and goat kids must be considered important reservoirs of Cryptosporidium species with zoonotic potential, such as C. parvum and C. ubiquitum.
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Acknowledgments
This work was supported by the Research Project AGL2011-25210 (Ministerio de Ciencia e Innovación, Spain) and by a grant for Consolidating and Structuring Competitive Research Groups (R2014/005, Xunta de Galicia). The authors also thank to OVICA (Galician Association of Ovine and Caprine Breeders), BOAGA (Galician Autochthonous Breed Federation) and the veterinarians of the ADSG ACIVO for their collaboration in this study.
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Díaz, P., Quílez, J., Prieto, A. et al. Cryptosporidium species and subtype analysis in diarrhoeic pre-weaned lambs and goat kids from north-western Spain. Parasitol Res 114, 4099–4105 (2015). https://doi.org/10.1007/s00436-015-4639-0
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DOI: https://doi.org/10.1007/s00436-015-4639-0