Publications

toxoplasmosis in dasyurid marsupials.	during a histopathologic survey of 240 dasyurid marsupials a high prevalence of infection of toxoplasma gondii was found in eight of thenine species examined. amongst the infected species, endemic infection in field animals was proved in dasyuroides byrnei, but there was also good evidence of laboratory infection probably derived from raw sheep tissues in their diet. infection was never demonstrated in animals less than six months of age. the 21 antechinus stuartii examined remained free from in ...	1975	1195500
fine structure of the parotid gland in the crest-tailed marsupial-rat (dasyuroides byrnei).	the parotid gland of dasyuroides byrnei was examined by light microscopy, and transmission and scanning electron microscopy. the acini were composed predominantly of seromucous cells with a few mucous cells. the seromucous cells were light or dark cells containing acidophilic spherical granules of moderate to high electron density and had well-developed cytoplasmic organelles-ordinary mitochondria and large mitochondria with tubular cristae, rer with vesicular or tubular elements, and golgi appa ...	1992	1451758
restricted feeding entrains circadian wheel-running activity rhythms of the kowari.	the effect of daily restricted feeding (rf) on the circadian wheel-running rhythms of the kowari, dasyuroides byrnei, was examined in two experiments. kowaris were presented with a preferred food (determined in a pilot study) during a daily 2-h meal in the light period of a 14:10 light-dark (ld) cycle (expts 1 and 2), during constant dark (dd) immediately after termination of the ld cycle (expt 1), and during dd when kowaris were free running (expt 1). results showed that 1) rf elicited anticipa ...	1991	1928428
fine structure of the mandibular gland in crest-tailed marsupial-rat (dasyuroides byrnei).	the mandibular glands of dasyuroides byrnei were examined by light microscopy, and transmission and scanning electron microscopy. the secretory units consisted of numerous seromucous acini and a few seromucous demilunes. the seromucous acini were almost always capped by demilunes. the acinar seromucous cells contained faintly basophilic, light, coarse, bipatite secretory granules with matrix of low and moderate densities. the demilunar cells were dark compared with acinar seromucous cells and co ...	1990	2303096
glossal squamous cell carcinoma with pulmonary metastasis in a kowari (dasyuroides byrnei)		1990	2334372
an ultrastructural study of developing spermatids and associated sertoli cells during spermiogenesis in the kowari (crest-tailed marsupial rat), dasyuroides byrnei.	ultrastructural changes of developing spermatids and associated sertoli cells during spermiogenesis in the kowari, dasyuroides byrnei, were observed by transmission electron microscopy. the early round spermatid in the kowari showed an acrosomal vacuole containing sparsely distributed material. the acrosomal vacuole grew to some degree and then collapsed upon itself and decreased in size. after the diminution of the vacuole, flattening and condensation of the nucleus began. at this period, the m ...	1990	2336246
phase-response curve to 1-hour light pulses for the marsupial, dasyuroides byrnei.	most australian marsupials are nocturnal and consequently it might be expected that the circadian system of this group may be similar to the circadian system of nocturnal rodents. ten male kowaris (dasyuroides byrnei) were allowed to free-run in constant darkness and were subsequently administered 1-hour light pulses (1000 lux) at known circadian times in their cycles at intervals of greater than 2 weeks. changes in the phase of the kowari's circadian rhythm of wheel-running were measured when t ...	1989	2602492
luteinizing hormone in the kowari, dasyuroides byrnei (marsupialia:dasyuridae), during the oestrous cycle and pregnancy, and the effects of gonadectomy in male and female.	a heterologous double antibody radioimmunoassay has been validated for measurement of lh in plasma of a dasyurid marsupial. basal concentrations in the oestrous cycle of female kowaris were in the range of 0.5-2.0 ng nih-olh-s19 ml-1. many animals showed elevated lh concentrations (3.0-12.0 ng ml-1) between 8 and 15 days before oestrous but no pre-ovulatory surge was detected. gonadectomy resulted in greatly increased concentrations of lh, and decreases in testosterone and progesterone concentra ...	1989	2710960
plasma progesterone and body weight in the pregnant and non-pregnant kowari, dasyuroides byrnei (marsupialia:dasyuridae).	female kowaris are seasonal breeders (may-november) with a gestation of 32.5 +/- 1.8 days (mean +/- s.d., n = 35). the oestrus cycle including pregnancy is 59.0 +/- 6.7 days in duration (mean +/- s.d., n = 12) and is not significantly different from the non-pregnant cycle of 60.3 +/- 7.1 days (mean +/- s.d., n = 15) (p greater than 0.1). animals maintained on a fixed diet show an increase and fall in body weight before oestrus and again at the end of the oestrous cycle or a pregnancy; these chan ...	1989	2710961
gas exchange in the lung of a dasyurid marsupial: morphometric estimation of diffusion capacity and blood oxygen uptake kinetics.	placental and marsupial mammals differ in the balance of their cardio-respiratory systems. to determine if differences also occur in lung structure, a morphometric study of the lungs of a dasyurid marsupial, dasyuroides byrnei, was undertaken. the total lung volume was large, but a comparatively smaller proportion was devoted to gas exchange tissue. eighty-seven percent of lung parenchyma was air space. the volume of capillary blood was lower than would be predicted on a body mass basis, but the ...	1989	2781168
use of helium-oxygen to examine the effect of cold acclimation on the summit metabolism of a marsupial, dasyuroides byrnei.	to determine whether marsupial mammals increase their metabolic capabilities during cold acclimation, the metabolism of both warm and cold acclimated dasyuroides byrnei was examined by exposure to cold in a helium-oxygen atmosphere. mean values of heat production and conductance were significantly higher in a helium-oxygen atmosphere than in air. body temperature did not change until metabolic capacity was exhausted. both cold and warm acclimated groups could maintain a metabolic scope of 10-11 ...	1985	2864187
retinal projections in two australian polyprotodont marsupials: kowari, dasyuroides byrnei, and fat-tailed dunnart, sminthopsis crassicaudata (dasyuridae).	retinal projections were examined in two small dasyurids, the kowari and the fat-tailed dunnart, following injections of 3h-proline into one eye. in both animals retinal fibres terminate in the dorsal and ventral lateral geniculate nuclei (lgd, lgv), the lateral posterior nuclear complex, the pretectum, the superior colliculus, the suprachiasmatic nucleus of the hypothalamus and the nuclei of the accessory optic system. the lateroposterior thalamic complex and the accessory optic nuclei receive ...	1988	3349353
topography and ultrastructure of sensory nerve endings in the joint capsules of the kowari (dasyuroides byrnei), an australian marsupial.	the present investigation in concerned with the topography and ultrastructure of sensory nerve endings in the joint capsules of the kowari (dasyuroides byrnei), an australian marsupial. material for light and electron microscopy was obtained from shoulder, elbow and knee joint capsules. on the basis of differences in the organization of the connective tissue belonging to the fibrous layer, 3 variants of capsule structure have been distinguished: a rigid, a flaccid and an intermediate type. whils ...	2013	3605642
evolution of marsupials traced by their neurohypophyseal hormones: microidentification of mesotocin and arginine vasopressin in two australian families, dasyuridae and phascolarctidae.	neurohypophyseal hormones of two species belonging to the family dasyuridae, namely dasyurus viverrinus (eastern native cat) and dasyuroides byrnei (kowari), and of the single living member of the family phascolarctidae, phascolarctos cinereus (koala) have been isolated and characterized by their retention times in high-pressure reverse-phase partition chromatography and either amino acid composition or amino acid sequence through a gas-phase microsequencer. mesotocin and arginine vasopressin ha ...	1987	3666414
restricted feeding and circadian activity rhythms of a predatory marsupial, dasyuroides byrnei.	there is considerable disagreement as to whether food availability entrains circadian activity rhythms in omnivorous laboratory rodents. however, in carnivorous mammals a restricted feeding regime could act as a zeitgeber because the predator should hold a periodism correlated to that of the prey. nevertheless, a restricted feeding schedule does not dominate the ld cycle for entrainment of circadian activity rhythms of the nocturnal predator dasyuroides byrnei, nor does it entrain the free-runni ...	1986	3823161
schwannoma in a kowari (dasyuroides byrnei).		1985	4084148
the behaviour of dasyuroides byrnei (marsupialia) in captivity.		2003	4450819
inheritance of red cell glucose-phosphate isomerase in the australian marsupial, dasyuroides byrnei.		1981	7225092
the marsupial mhc: the tammar wallaby, macropus eugenii, contains an expressed dna-like gene on chromosome 1.	in the placental mammal major histocompatibility complex (mhc) three main families of class ii genes, dr, dq, and dp, have been recognized. each family contains genes that code for one or more a- and b-chains. recent evidence has indicated that a fourth family can be described, the dn/do family. these four families arose sometime early in mammalian evolution. our purpose was to deduce the mhc of an early mammalian ancestor of marsupials and eutherians. using primers designed to conserved regions ...	1994	8028029
the pattern of respiration with increasing metabolism in a small dasyurid marsupial.	previous studies have indicated that the pattern of respiration in marsupial and placental mammals may be different. some marsupials have larger tidal volumes and slower respiratory rates under basal conditions. this study examined the respiratory responses of a small marsupial, dasyuroides byrnei, to increasing metabolic demand. the highest metabolic rate elicited by cold exposure in a helium-oxygen atmosphere was 10.4 times the basal metabolic rate. basal tidal volumes and respiratory rates we ...	1993	8235129
informative enzyme/probe combinations for the multilocus dna fingerprinting of marsupials.	dna fingerprinting has become an invaluable tool in the study of population genetics, paternity success, and individual identification; however, the species specificity of some methods has made the wide-range screening of many different species very time-consuming. in this study we describe the development and application of reliable and informative dna fingerprinting techniques in a range of marsupial species using three different restriction enzyme and two oligonucleotide probe combinations. s ...	1997	9378146
isolation and partial characterization of tammar wallaby luteinizing hormone and development of a radioimmunoassay.	tammar wallaby (macropus eugenii) luteinizing hormone (lh) was purified from pituitaries collected from wild and captive populations by salt sequential precipitation, ion exchange chromatography and gel filtration. pituitary tissue (5 g) yielded 1.8 mg of purified wallaby luteinizing hormone (me-14b), as verified by sodium dodecyl sulfate polyacrylamide gel electrophoresis (sds-page). a heterologous radioimmunoassay has been developed for measurement of lh in plasma of marsupials using a monoclo ...	1997	9402258
anatomy and chromosomes of two intersexual dasyurid marsupials.	the intersexual phenotypes of marsupials with xxy and xo chromosome constitutions imply that not all sexual dimorphisms are under the control of testicular hormones and, ultimately, the sry gene on the y chromosome. it has been hypothesised that there is a gene on the x chromosome that determines whether either a scrotum will form (one copy of the gene) or a pouch with teats (two copies of the gene). here, we describe the anatomy and chromosomes of two intersexual dasyurid marsupials. one, a das ...	2003	14588187
the development of the olfactory organs in newly hatched monotremes and neonate marsupials.	olfactory cues are thought to play a crucial role in the detection of the milk source at birth in mammals. it has been shown that a marsupial, the tammar wallaby, can detect olfactory cues from its mother's pouch at birth. this study investigates whether the main olfactory and accessory olfactory system are similarly well developed in other marsupials and monotremes at birth/hatching as in the tammar. sections of the head of various marsupial and two monotreme species were investigated by light ...	2011	21592102
oral squamous cell carcinoma in three related kowari (dasyuroides byrnei).	we report three kowari (dasyuroides byrnei) with squamous cell carcinoma affecting the gingiva. these cases occurred in rapid succession in a related group of individuals of similar age, suggesting a familial tendency to this condition and a typical age of presentation. other conditions affecting the oral cavity can mimic the appearance of oral squamous cell carcinoma in this species, and so knowledge of this condition can assist the veterinarian in making rapid decisions regarding prognosis and ...	2017	28196645
novel adenovirus detected in kowari (dasyuroides byrnei) with pneumonia.	a male kowari (dasyuroides byrnei) originating from a zoo facility was delivered for post mortem evaluation in hungary. acute lobar pneumonia with histopathologic changes resembling an adenovirus (adv) infection was detected by light microscopic examination. the presence of an adv was confirmed by obtaining partial sequence data from the adenoviral dna-dependent dna-polymerase. although the exact taxonomic position of this novel marsupial origin virus could not be determined, pairwise identity a ...	2017	28198195
neutron diffraction measurements of weld residual stresses in three-pass slot weld (alloy 600/82) and assessment of the measurement uncertainty.	this paper describes in detail two neutron diffraction residual stress measurements, performed on the engin-x neutron scattering instrument at the isis facility in the uk and on the salsa instrument at the institut laue-langevin in grenoble, france. the measurements were conducted as part of the net task group 6 (tg6) international measurement round robin on an alloy 600/82 multi-pass weldment - a slot in an alloy 600 plate filled with three alloy 82 weld beads, simulating a repair weld. this al ...	2020	33117107