Publications

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histopathological survey of protozoa, helminths and acarids of imported and local psittacine and passerine birds in japan.a total of 534 psittacine and passerine birds consisting of 241 imported and 293 local birds were examined histologically. as a result, the following parasites were found: giardia (86 cases), knemido-coptes (26 cases), coccidia (10 cases), ascaridia (6 cases), cryptosporidium (5 cases), sarcocystis (5 cases), tapeworm (4 cases), microfilaria (2 cases), hexamita (1 case), and spiroptera (1 case). high incidences of giardiasis and knemido-coptic infestation were detected in the local birds, but ra ...19921297009
genome sequences of beak and feather disease virus in urban rainbow lorikeets (trichoglossus haematodus).beak and feather disease viral genomes were recovered from two deceased juvenile urban rainbow lorikeets (trichoglossus haematodus) that lacked tail feathers. these genomes share ~95% pairwise identity with two beak and feather disease virus (bfdv) genomes identified in wild and captive australian t. haematodus birds and ~92% identity to those in wild new caledonian t. haematodus deplanchii birds.201525908126
evidence of multiple introductions of beak and feather disease virus into the pacific islands of nouvelle-caledonie (new caledonia).beak and feather disease virus (bfdv) is a circular ssdna virus that causes psittacine beak and feather disease and has almost global presence. here, we report for the first time the presence of in nouvelle-calédonie (new caledonia). one hundred and sixty-eight exotic and 79 endemic birds were sampled in nouvelle-calédonie, 26 were found to be positive for bfdv. we characterized the full genomes of 26 isolates and phylogenetic analysis placed nine of the isolates into the bfdv-j strain, with the ...201222855782
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 ...201323391180
renal carcinoma in a captive edwards lory (trichoglossus haematodus capistratus). 19836887444
encephalomyelitis in free-living rainbow lorikeets (trichoglossus haematodus).several free-living lorikeets in three suburban flocks in eastern australia developed bilateral paralysis, or 'clenching', of their feet. in some birds, this progressively worsened over 1 to 3 weeks to complete paralysis of their leg, body and head movements. histological examination of the hindbrains and spinal cords of severely affected birds revealed perivascular macrophage infiltration, endothelial cell proliferation, with diffuse gliosis, astrocyte activation, neuronal necrosis, axonal dege ...198618766579
glucose absorption by a nectarivorous bird: the passive pathway is paramount.we tested the hypothesis that most sugar absorption across the small intestine's brush border is normally by a mediated pathway, i.e., the na(+)-glucose cotransporter. in nectar-eating rainbow lorikeets (trichoglossus haematodus, 120 g), we measured mediated d-glucose uptake in vitro using the everted-sleeve technique. the apparent michaelis constant (7.7 mm) was similar to that observed in hummingbirds and other birds in general. maximal mediated d-glucose uptake summed along the entire length ...19948048528
basic data on food intake, nutrient digestibility and energy requirements of lorikeets.although knowledge of the nutrient requirements of pet birds has increased a lot over the last few years, basic data on food and water intake and the energy requirements of nectarivorous species, such as lorikeets, are scarce. thus, the aim of this study was to try to generate some of these data for lorikeets kept at maintenance. determination of the daily maintenance energy requirement enables calculation of the daily ration and thus, the appropriate nutrient concentrations in order to maintain ...200717516953
the effect of a single intravenous fluid bolus on packed cell volume and plasma total solids concentration in red-collared lorikeets (trichoglossus haematodus rubritorquis).to determine the effect of a single intravenous (iv) fluid bolus on the hydration of an avian patient, using packed cell volume (pcv) and plasma total solids (ts) to estimate hydration.200818304049
bilateral necrotizing pectenitis causing blindness in a rainbow lorikeet (trichoglossus haematodus).a rainbow lorikeet (trichoglossus haematodus) in good physical condition and otherwise neurologically normal was presented with a history of sudden blindness. gross abnormalities were not detected at necropsy and cultures of aqueous humour and visceral organs failed to yield bacterial growth. in both eyes histopathological examination demonstrated acute necrosis of the pecten associated with a severe heterophilic inflammation and a myriad of giemsa and gram-positive, filamentous, branching nocar ...199718483952
effect of dilution degree of commercial nectar and provision of fruit on food, energy and nutrient intake in two rainbow lorikeet subspecies.a feeding trial was performed on adult rainbow lorikeets of two subspecies: six green-naped lorikeets (trichoglossus haematodus haematodus) and six red-breasted lorikeets (t. haematodus mitchellii). throughout the entire trial, half of the birds from each subspecies had ad libitum access to water-diluted commercial nectar powder and drinking water only, whereas the other half also received ad libitum apple pieces. during three consecutive 14-d periods, the nectar powder was diluted to a differen ...200919367623
win-shift and win-stay learning in the rainbow lorikeet (trichoglossus haematodus).the tendency to win-shift (to better learn to avoid, rather than return to, recently rewarded locations) has been demonstrated in a variety of nectarivorous birds and in honeybees. it is hypothesized to be a cognitive adaptation to the depleting nature of nectar. in the present study we report the first attempt to test for a win-shift bias in a nectarivorous parrot, the rainbow lorikeet (trichoglossus hematodus). this species differs from others tested for a win-shift bias in that it is a facult ...201121604850
scanning electron microscopic study of the tongue in the rainbow lorikeet (trichoglossus haematodus).the dorsal lingual surfaces of rainbow lorikeet (trichoglossus haematodus) were examined by scanning electron microscopy. macroscopically, the tongue of the rainbow lorikeet has a finger-like shape. three parts are distinguished in the dorsal surface of the tongue: the apex, body, and root of the tongue. the apex of the tongue has numerous processes inclined toward medial side from lateral side. these processes are rod-like structure and smooth surfaces. many grooves are observed in both lateral ...201121882592
eimeria haematodi sp. n. (protozoa: eimeriidae) from the rainbow lorikeet, trichoglossus haematodus, in papua new guinea.eimeria haematodi sp. n. is described from the rainbow lorikeet, trichoglossus haematodus, in papua new guinea. oocysts ovoid to slightly pyriform, and measured 24.7 to 40.0 by 20.8 to 35.0 micronm (32.3 by 27.6 micronm). oocyst wall approximately 1.5 micronm thick and two-layered. micropyle (5 to 7 micronm) and oocyst residuum (10 to 12 micron) present; polar granule absent. sporocysts ellipsoidal, 12.0 to 17.0 by 7.9 to 9.8 micronm (13.3 by 8.4 micronm), with thin convex stieda body, and granu ...1977859078
comparison of body temperature readings between an implantable microchip and a cloacal probe in lorikeets (trichoglossus haematodus sp.).body temperature readings can be a useful diagnostic tool for identifying the presence of subclinical disease. traditionally, rectal or cloacal thermometry has been used to obtain body temperatures. the use of implantable microchips to obtain these temperatures has been studied in a variety of animals, but not yet in avian species. initially, timepoint one (t₁), nine lorikeets were anesthetized via facemask induction with 5% isoflurane and maintained at 2-3% for microchip placement and body temp ...201425270528
morphological and molecular characterization of eimeria haematodi, coccidian parasite (apicomplexa: eimeriidae) in a rainbow lorikeet (trichoglossus haematodus).eimeria haematodi was first described in 1977 from the rainbow lorikeet (trichoglossus haematodus) in papua new guinea. in the present study, we re-describe this coccidian species morphologically and molecularly from a rainbow lorikeet bird in western australia (wa). the oocysts were ovoid to slightly piriform and measured 28.5-37.8 by 25.8-33.0 µm (33.3 by 28.1 µm). oocyst wall was approximately 1.5 µm thick and bilayered. micropyle (5-7 µm) and oocyst residuum (8.0-10.0 µm) present; polar gran ...201525795281
mechanism and rate of glucose absorption differ between an australian honeyeater (meliphagidae) and a lorikeet (loriidae).efficient mechanisms of glucose absorption are necessary for volant animals as a means of reducing mass during flight: they speed up gut transit time and require smaller volume and mass of gut tissue. one mechanism that may be important is absorption via paracellular (non-mediated) pathways. this may be particularly true for nectarivorous species which encounter large quantities of sugar in their natural diet. we investigated the extent of mediated and non-mediated glucose absorption in red watt ...200818978218
a serologic survey for avian polyomavirus and pacheco's disease virus in australian cockatoos.sera collected from wild and captive australian cockatoos and other psittacine species (n = 411) were tested for antibodies to avian polyomavirus (apv) and pacheco's disease virus (pdv). of 144 wild sulphur-crested cockatoos (cacatua galerita) sampled at three regions in new south wales (nsw) 96 (64.4%) birds had positive (>/= 1:32) neutralizing antibody titres to avian polyomavirus (range 1:32-1:2048). two of 17 wild long-billed corellas (cacatua tenuirostris) were also apv-antibody positive. h ...199818483996
fatal coxiellosis in swainson's blue mountain rainbow lorikeets (trichoglossus haematodus moluccanus).three swainson's blue mountain rainbow lorikeets (trichoglossus haematodus moluccanus), ranging from 6 to 8 months of age, presented with lethargy, emaciation, and progressive neurologic signs. the first one died 24 hours after the onset of clinical signs, and the other two were euthanized 10 to 14 days after the onset of progressive neurologic disease. clinical signs in these lorikeets included head pressing, hemiparesis, seizures, obtunded mentation, weakness, and lethargy. two of the lorikeet ...200818424842
tyzzer's disease in a neonatal rainbow lorikeet (trichoglossus haematodus).a captive-born 8-day-old male rainbow lorikeet (trichoglossus haematodus) was found dead. histologically, there were necrotizing hepatitis, myocarditis, and ventriculitis. silver stain revealed argyrophilic filamentous bacilli within hepatocytes, smooth myofibers of the gizzard, and cardiac myofibers surrounding foci of necrosis. immunohistochemistry using anti-clostridium piliforme rt and msk strain antisera reacted positively against bacilli within hepatocytes, cardiac myofibers, smooth myofib ...200111355664
sugar preferences of avian nectarivores are correlated with intestinal sucrase activity.nectar-feeding birds generally demonstrate preference for hexose solutions at low sugar concentrations, switching to sucrose/no preference at higher concentrations. species vary in the concentration at which the switch from hexose preference occurs; this could reflect physiological constraints that would also influence nectar selection when foraging. we recorded concentration-dependent sugar type preferences in three opportunistic/generalist australian nectarivorous species: dicaeum hirundinaceu ...201323995481
means-end comprehension in four parrot species: explained by social complexity.a comparative approach is required to investigate the evolutionary origins of cognitive abilities. in this paper, we compare the performance of four parrot species, spectacled parrotlets (forpus conspicillatus), rainbow lorikeets (trichoglossus haematodus), green-winged macaws (ara chloroptera) and sulphur-crested cockatoos (cacatua galerita triton) in standardized string-pulling and string-choice paradigms. we varied the spatial relationship between the strings, the presence of a reward and the ...201323397182
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