natural infection with cryptosporidium galli in canaries (serinus canaria), in a cockatiel (nymphicus hollandicus), and in lesser seed-finches (oryzoborus angolensis) from brazil.proventricular infection by cryptosporidium sp. or cryptosporidium galli has been associated with mortality, weight loss, diarrhea, and pasty feces. the purpose of this study is to report the occurrence of natural c galli infection in canaries (serinus canaria), in a cockatiel (nymphicus hollandicus), and in lesser seed-finches (oryzoborus angolensis) with clinical complaints of apathy and sporadic mortality. screening for cryptosporidium spp. using microscopic examination of fecal samples and s ...200819166068
physical, epidemiological, and molecular evaluation of infection by cryptosporidium galli in passeriformes.due to the scarcity of information related to the epidemiology of cryptosporidium infection in passerine birds, this study aimed to determine the periodicity of fecal shedding of cryptosporidium spp. oocysts, after natural infection, and its clinical signs, mortality, and molecular characterization. four hundred eighty fecal samples were collected from 40 birds, including 372 samples from 31 adult birds and 108 samples from nine young birds (up to 12 months old), housed in five aviaries, monthly ...201020407911
molecular characterization of cryptosporidium spp. from fecal samples of birds kept in captivity in brazil.the aim of this study was to determine the prevalence of cryptosporidium species and genotypes in birds kept in captivity in brazil. a total of 966 samples from 18 families of birds was collected and stored in 5% potassium dichromate solution at 4 degrees c until processing. oocysts were purified in sheather sugar solution following extraction of genomic dna. molecular analyses were performed using nested-pcr for amplification of fragments of the 18s subunit of rrna gene and of the actin gene. a ...200919683397
intestinal protozoan parasites with zoonotic potential in birds.the aim of this study was to evaluate the occurrence of potentially zoonotic intestinal protozoan infections in exotic and wildlife brazilian birds. fecal samples from 207 birds of 45 species were examined. infections by balantidium sp., entamoeba sp., and blastocystis sp. were observed in 17 individuals (8.2%) of gnorimopsar chopi, oryzoborus angolensis, sporophila caerulescens, ramphastos toco, aratinga leucophtalmus, and pavo cristatus.200818663476
polymorphic microsatellite loci and partial mitogenome for the chestnut-bellied seed-finch sporophila angolensis (aves, passeriformes) using next generation sequencing.brazil is one of the major contributors to international trade in wildlife and species of the bird genus sporophila are currently under threat due to illegal trade. microsatellite loci and mitochondrial dna constitute important molecular markers for population genetics studies and parentage analyses, and hold great potential to help authorities manage illegal trafficking and control commercial breeders. we describe and characterize 19 polymorphic microsatellite loci and recover part of the mitoc ...201931069613
reference values for the production of the aqueous fraction of the tear film measured by the standardized endodontic absorbent paper point test in different exotic and laboratory animal species.the aqueous fraction of the tear film and the horizontal palpebral fissure length (hpfl) were measured in exotic and laboratory animals, specifically saffron finches (sicalis flaveola), chestnut-bellied seed-finches (sporophila angolensis), red-eared sliders (trachemys scripta elegans), rats (rattus norvegicus) and mice (mus musculus). these species possess small eyes making it difficult to perform the typical schirmer tear test. measurement of the aqueous fraction of the tear was performed usin ...201423464753
three new species of isospora schneider, 1881 (apicomplexa: eimeriidae) from the lesser seed-finch, oryzoborus angolensis (passeriformes: emberizidae) from brazil.three new coccidian (apicomplexa: eimeriidae) species are reported from the lesser seed-finch, oryzoborus angolensis from brazil. sporulated oocysts of isospora curio n. sp. are spherical to subspherical; 24.6 x 23.6 (22-26 x 22-25) microm, shape-index (si, length/width) of 1.04 (1.00-1.15). oocyst wall is bilayerd, approximately 1.5 microm thick, smooth and colourless. micropyle and oocyst residuum are absent. the sporocysts are ovoid, 13.2 x 10.9 (15-17 x 10-13) microm, si = 1.56 (1.42-1.71), ...200617072465
a comparative study of the forebrain of 4 species of south american birds.the brains of the swift streptoprocne zonaris, the flycatcher tyrannus melancholicus, the tanager ramphocelus dimidiatus and the finch oryzoborus angolensis were compared with respect to the hyperstriatum accessorium, hyperstriatum dorsale, hyperstriatum ventrale, neostriatum, ectostriatum, paleostriatum augmentatum and paleostriatum primitivum. in each of these brain parts the average number of cells and the average cell size were calculated, and the species were compared with respect to the sa ...1978742725
novel poxviral infection in three finch species illegally imported into trinidad, west indies, with implications for native birds.oryzoborus angolensis (lesser seed-finch), oryzoborus crassirostris (large-billed seed-finch), and sporophila intermedia (grey seedeater) are finch species native to the caribbean island of trinidad. these species are locally trapped and kept for their song, but with declining native populations, enthusiasts have turned to illegally importing birds from the south american mainland. the smuggling of wild birds from south america poses significant disease risks to the native bird species of trinid ...201931120683
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