| pacheco's disease in a hungarian zoo bird population: a case report. | an epizootic of pacheco's disease is reported from a zoo bird population. the infection was introduced by wild-captured patagonian conures (cyanoliseus patagonus) despite 61 days of quarantine. the disease affected several parrot species and, interestingly, three out of seven bearded barbets (lybius dubius). the mortality rate was 30.93%. autopsy revealed abdominal hyperaemia with liver haemorrhages and, in less rapid cases, yellowish discoloration and fragility of the liver. death was caused by ... | 2007 | 17555286 |
| baylisascaris procyonis encephalitis in patagonian conures (cyanoliseus patagonus), crested screamers (chauna torquata), and a western canadian porcupine (erethizon dorsatum epixanthus) in a manitoba zoo. | neurological disease occurred in 4 patagonian conures (cyanoliseus patagonus), 2 crested screamer chicks (chauna torquata), and 1 western canadian porcupine (erethizon dorsatum epixanthus) at a manitoba zoo. baylisascaris procyonis, the common raccoon roundworm, not previously identified in manitoba, is considered the likely cause of neural larval migrans in these cases. | 2008 | 19043485 |
| sex determination in 58 bird species and evaluation of chd gene as a universal molecular marker in bird sexing. | the aim of this research was to test the chd gene (chromo helicase dna-binding gene) as a universal molecular marker for sexing birds of relatively distant species. the chd gene corresponds to the aim because of its high degree of conservation and different lengths in z and w chromosomes due to different intron sizes. dna was isolated from feathers and the amplification of the chd gene was performed with the following sets of polymerase chain reaction (pcr) primers: 2550f/2718r and p2/p8. sex de ... | 2015 | 22553188 |
| seasonal thermoregulation in the burrowing parrot (cyanoliseus patagonus). | birds exposed to seasonal environments are faced with the problem of maintaining thermogenic homoeostasis. previous studies have established that birds native to the holarctic increase their resting metabolic rate at different ambient temperatures (rmrta) and basal metabolic rate (bmr) in winter as an adaptation to cold temperature since winters are more severe, while their non-holarctic counterparts generally decrease their winter bmr as an energy saving mechanism during unproductive and dry wi ... | 2013 | 24229804 |
| pharmacokinetics after intravenous administration of flunixin meglumine in budgerigars (melopsittacus undulatus) and patagonian conures (cyanoliseus patagonus). | to investigate the disposition kinetics of flunixin meglumine when administered iv to budgerigars (melopsittacus undulatus) and patagonian conures (cyanoliseus patagonus). | 2013 | 23276097 |
| the high andes, gene flow and a stable hybrid zone shape the genetic structure of a wide-ranging south american parrot. | while the gene flow in some organisms is strongly affected by physical barriers and geographical distance, other highly mobile species are able to overcome such constraints. in southern south america, the andes (here up to 6,900 m) may constitute a formidable barrier to dispersal. in addition, this region was affected by cycles of intercalating arid/moist periods during the upper/late pleistocene and holocene. these factors may have been crucial in driving the phylogeographic structure of the ve ... | 2011 | 21672266 |
| do leucocytes reflect condition in nestling burrowing parrots cyanoliseus patagonus in the wild? | the different leucocyte types are an important part of the immune system. thus, they have been used in ecological studies to assess immune function and physiological stress in wild birds. it is generally assumed that increased stress and decreased condition are associated with an increase in the ratio of heterophils to lymphocytes, the h/l ratio. we studied leucocyte profiles in relation to body condition in nestling burrowing parrots (cyanoliseus patagonus) in north-eastern patagonia, argentina ... | 2009 | 18854224 |
| truly hypervariable dna fingerprints due to exceptionally high mutation rates. | the power of dna fingerprinting is due to comparatively high mutation rates of minisatellite and microsatellite dna sequences. studying the mating system of a parrot species (burrowing parrots, cyanoliseus patagonus) using oligonucleotide probes, we observed mutation rates that are several orders of magnitude higher than those described anywhere in the literature. most plausibly, the respective values are based on 3-4 loci with mutation rates of up to 100%. | 2002 | 11870758 |
| the importance of scale-dependent ravine characteristics on breeding-site selection by the burrowing parrot, cyanoliseus patagonus. | in birds, the environmental variables and intrinsic characteristics of the nest have important fitness consequences through its influence on the selection of nesting sites. however, the extent to which these variables interact with variables that operate at the landscape scale, and whether there is a hierarchy among the different scales that influences nest-site selection, is unknown. this interaction could be crucial in burrowing birds, which depend heavily on the availability of suitable nesti ... | 2017 | 28462019 |
| unrewarded object combinations in captive parrots. | in primates, complex object combinations during play are often regarded as precursors of functional behavior. here we investigate combinatory behaviors during unrewarded object manipulation in seven parrot species, including kea, african grey parrots and goffin cockatoos, three species previously used as model species for technical problem solving. we further examine a habitually tool using species, the black palm cockatoo. moreover, we incorporate three neotropical species, the yellow- and the ... | 2014 | 25984564 |