Abstract：
:The purpose of this study was to genetically characterize and phylogenetically analyze the Cryptosporidium spp. isolated from exotic birds commercialized in popular markets, commercial aviaries, and pet shops located in Rio de Janeiro, Brazil. Fecal samples from individually housed birds were collected and subjected to centrifuge-flotation technique using saturated sugar solution. DNA was isolated from Cryptosporidium positive samples, and 18S subunit rDNA was amplified and processed using nested-polymerase chain reaction (PCR). To identify the protozoan species, the PCR amplicons were used for restriction fragment length polymorphism and sequencing analyses. Of the 103 analyzed fecal samples, seven (6.8%) were positive for Cryptosporidium oocysts. Sequencing and further phylogenetic analyses allowed us to identify the following species: Cryptosporidium parvum in Bengalese finch (Lonchura striata domestica) and avian genotype III in Java sparrow (Padda oryzivora) and cockatiel (Nymphicus hollandicus). The sequences of the Cryptosporidium spp. isolated from canaries (Serinus canarius) were not identifiable within the groups of known species, but they presented a higher genetic similarity with C. parvum. This is the first report in Brazil showing that C. parvum parasitizes Bengalese finches and that avian genotype III parasitizes Java sparrows.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Gomes RS,Huber F,da Silva S,do Bomfim TCdoi
10.1007/s00436-011-2636-5subject
Has Abstractpub_date
2012-04-01 00:00:00pages
1363-70issue
4eissn
0932-0113issn
1432-1955journal_volume
110pub_type
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journal_title：Parasitology research
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