| avian polyomavirus genome sequences recovered from parrots in captive breeding facilities in poland. | eight genomes of avian polyomaviruses (apvs) were recovered and sequenced from deceased psittacula eupatria, psittacula krameri, and melopsittacus undulatus from various breeding facilities in poland. of these apv-positive samples, six had previously tested positive for beak and feather disease virus (bfdv) and/or parrot hepatitis b virus (phbv). | 2015 | 26404592 |
| pcr-based diagnosis, molecular characterization and detection of atypical strains of avian chlamydia psittaci in companion and wild birds. | chlamydiosis is one of the most important infectious diseases of birds. in this study, 253 clinical samples were taken from 27 bird species belonging to seven orders. thirty-two (12.6%) samples were positive for chlamydia psittaci major outer membrane gene (ompa) dna by a nested polymerase chain reaction (pcr). twelve nested pcr-positive specimens were typed by ompa gene-based pcr-restricted fragment length polymorphism, using ctu/ctl primers and alui restriction enzyme. four restriction pattern ... | 2013 | 23391180 |
| seroprevalence and genotype of chlamydia in pet parrots in china. | parrots are one of the most popular pet birds in china, and can harbour chlamydia which has significance for human and animal health. we investigated, by indirect haemagglutination assay, the seroprevalence of chlamydia infection in four species of parrots, namely budgerigars (melopsittacus undulatus), lovebirds (agapornis sp.), cockatiels (nymphicus hollandicus) and alexandrine parakeets (psittacula eupatria) that were collected from weifang and beijing cities, north china and explored the asso ... | 2015 | 24588856 |
| first report of toxoplasma gondii seroprevalence in pet parrots in china. | toxoplasmosis, caused by the obligate intracellular protozoan parasite toxoplasma gondii, has become a serious public health problem worldwide. t. gondii can infect almost all warm-blooded animals, including parrots. however, little is known of t. gondii infection in parrots in china. antibodies against t. gondii in 311 parrots including 202 budgerigars (melopsittacus undulatus), 26 lovebirds (agapornis sp.), 22 cockatiels (nymphicus hollandicus), and 61 alexandrine parakeets (psittacula eupatri ... | 2014 | 24866015 |
| the evolution of the indian ocean parrots (psittaciformes): extinction, adaptive radiation and eustacy. | parrots are among the most recognisable and widely distributed of all bird groups occupying major parts of the tropics. the evolution of the genera that are found in and around the indian ocean region is particularly interesting as they show a high degree of heterogeneity in distribution and levels of speciation. here we present a molecular phylogenetic analysis of indian ocean parrots, identifying the possible geological and geographical factors that influenced their evolution. we hypothesise t ... | 2012 | 22019932 |
| prevalence and genotyping of cryptosporidium infection in pet parrots in north china. | cryptosporidiosis is a worldwide zoonosis caused by cryptosporidium spp., sometimes leading to severe diarrhea in humans and animals. in the present study, 311 parrots, belonging to four species, namely, budgerigars (melopsittacus undulatus), lovebirds (agapornis sp.), alexandrine parakeets (psittacula eupatria), and cockatiel (nymphicus hollandicus), from beijing and weifang cities, were examined for cryptosporidium spp. infection. blood samples of each bird were examined using enzyme linked im ... | 2015 | 26273629 |
| giant axonal neuropathy-like disease in an alexandrine parrot (psittacula eupatria). | a chronic progressive neurological condition in an alexandrine parrot (psittacula eupatria) was manifest as intention tremors, incoordination, and seizure activity. histology revealed large eosinophilic bodies throughout the central nervous system, and electron microscopy demonstrated that these bodies were greatly expanded axons distended by short filamentous structures that aggregated to form long strands. the presence of periodic acid-schiff-positive material within the neuronal bodies of pur ... | 2015 | 26330398 |
| monitoring of free-ranging and captive psittacula populations in western europe for avian bornaviruses, circoviruses and polyomaviruses. | avian pathogens such as bornaviruses, circoviruses and polyomaviruses are widely distributed in captive collections of psittacine birds worldwide and can cause fatal diseases. in contrast, only little is known about their presence in free-ranging psittacines and their impact on these populations. rose-ringed parakeets (psittacula krameri) and alexandrine parakeets (psittacula eupatria) are non-native to europe, but have established stable populations in parts of western europe. from 2012-2017, w ... | 2020 | 31617746 |