Publications

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brucella cultures typed by the who brucellosis centre at the commonwealth serum laboratories, melbourne.results of the typing of brucella cultures received at the who brucellosis centre, csl, melbourne, from 1968-1976 are presented. the distribution of the biotypes of cultures recovered throughout australia is shown on a host and state basis and atypical cultures are discussed. cultures identified from australia were br. abortus, biotypes 1, 2 and 4 and strain 19; br. suis, biotype 1 and br. ovis. br. melitensis biotypes 1, 2 and 3 were recorded only as exotic human infections from the mediterrane ...1978105700
plasma thyroxine concentrations in grazing sheep in several areas of australia.plasma thyroxine concentrations were measured by radioimmunoassay in plasma samples from 691 lactating ewes in 26 areas of new south wales, queensland, western australia and tasmania. sheep sampled in new south wales and tasmania had significantly lower plasma thyroxine values (4.0 and 4.3 microgram/100 ml respectively) than those sampled in queensland and western australia (5.4 and 5.3 microgram/100 ml respectively). however, sheep in some districts in southern queensland also had low plasma th ...1978567054
the prevalence of sarcosporidiosis in australian meat animals.the prevalence of sarcocystis infectious in tasmanian sheep, cattle and pigs was assessed during february 1974. serological results indicated that over 90% of sheep and cattle were infected. macroscopic sarcocysts were found in 0.6% of lambs, 8.8% of 2- to 6-tooth (1 to 4 years old) sheep and 66% of full-mouth (4 years and older) sheep. the minimum prevalence in pigs, as determined by microscopic examination of muscle tissues, was 1.4% for animals less than 12 months old and 16.7% for animals ol ...1975812465
the control of hydatid disease and ovine cysticercoses in the australian capital territory and southern new south wales.a survey of human hydatid disease in new south wales and the australian capital territory over the period 1968 to 1973 was made from hospital records in sydney and canberra. the 162 new cases found represent an incidence, of 0-57 per 100,000 per annum, but the 20 patients living in the central west statistical division of new south wales at the time of admission to hospital represent an incidence of 12-6 per 100,000 per annum in that area. a survey of a.c.t. farms revealed dogs carrying the caus ...1977875855
congenital bovine epizootic arthrogryposis and hydranencephaly in australia. distribution of antibodies to akabane virus in australian cattle after the 1974 epizootic.at the end of the 1974 epizootic of bovine congenital arthrogryposis and hydranencephaly in south-eastern new south wales, an australia-wide serological survey (about 4,000 serums) was made to determine the ditribution of cattle possessing serum neutralising antibodies against akabane virus. eighty per cent of the serums from cattle in northern australia (western australia, northern territory, and queensland) were positive. a detailed study in the epizootic area in new south wales (particularly ...19761016149
selenium-responsive unthriftiness of young merino sheep in central victoria.a trial was carried out to determine whether selenium responsive unthriftiness existed on a property in the strathbogie ranges of central victoria where unthriftiness of young sheep has been a problem for 10 to 20 years. white muscle disease had been diagnosed on the property in the previous year and on other properties in the area. eighty merino ewes and lambs were allotted to one of 4 groups in a 2 x 2 factorial designed trial in which sodium selenite (0.1 mg/kg) was given orally to ewes and/o ...19751200935
the laboratory diagnosis of diseases in stock in new south wales: 1890 to 1947. 19892658945
survey of intramammary infections in ewes on the new england tableland of new south wales.samples of mammary secretion were collected aseptically from 1093 ewes in 8 separate flocks. most of the ewes were suckling lambs 4 to 6 weeks old. standard bacteriological tests were carried out on the samples to identify the organisms involved in intramammary infections. data on age, breed, lactational status and clinical status of the gland and its secretion were recorded at the time of sampling. the prevalence of intramammary infection was 14% of ewes (8% of glands). there was a tendency for ...19902334377
genetic architecture and adaptation: quantitative analysis of sheep and refuse tip populations of the australian sheep blowfly, lucilia cuprina.phenotypic differentiation between geographic areas and between sheep and adjacent refuse tip populations was assessed by quantitative analysis of population samples of l. cuprina from new south wales (lismore) and victoria (mansfield). in addition the genetic structure of populations has been defined and compared by biometrical analysis techniques. for all morphological and fitness characters examined significant phenotypic differentiation was observed both between geographic localities and bet ...19873274653
an outbreak of listerial myelitis in sheep. 19902115768
local eradication of haemonchus contortus using closantel. 19911755790
grass tetany: the mineral and species status of sixteen pastures in north-eastern victoria and southern new south wales. 19744852185
a genetic comparison of human and wildlife isolates of echinococcus granulosus in queensland: public health implications.to test the hypothesis that the hydatid parasite infecting macropods and dingoes in queensland is a sylvatic strain of echinococcus granulosus, distinct from the domestic strain which produces cysts in sheep and humans.19921346467
epidemiology and control of anaplasmosis in australia.anaplasmosis occurs in those areas of northern and eastern australia infested by the cattle tick boophilus microplus but it has been studied intensively only in queensland. anaplasmosis is predominantly a disease of autumn and winter and of cattle greater than 1 year of age. the complement fixation test has been used in serological surveys of the tick-infested areas of the state. both clinical and subclinical infections occur only in tick-infested areas and they are both more frequent in bos tau ...1979553977
effect of selenium on wool production body weight and mortality of young sheep in western australia. 19715106531
employment of veterinary graduates in new south wales. 19751167133
yersinia species isolated from sheep with enterocolitis.in 40 submissions to the regional veterinary laboratory (rvl) wagga wagga from sheep in southern new south wales from 1981 to 1989, 53 isolates of yersinia sp were recovered from 45 sheep in 37 flocks. of 53 isolates, 26 were identified as y. pseudotuberculosis, 20 as y. enterocolitica, 5 as y. intermedia and 2 as y. frederiksenii. twelve isolates of y. pseudotuberculosis tested in the slide agglutination test all belonged to serotype iii. the 20 y. enterocolitica isolates were categorised bioch ...19912043083
akabane disease in sheep.perinatal lamb mortality, associated with malformations of the cns due to akabane viral infection, occurred in 4 of 9 flocks of ewes lambing on 3 farms between 26 may and 14 november, 1976. cases were restricted to ewes conceiving prior to the second week of march and lambing between 26 may and 19 july. as judged by seroconversion in sentinel flocks on 2 of the farms, field infection with akabane virus occurred mainly between mid-february and mid-april. malformations of the cns occurred in 42.5% ...19883135792
anthelmintic resistance in sheep nematodes in the new england region of new south wales. 19921530557
ovine nasal zygomycosis caused by conidiobolus incongruus.about 700 sheep died on 52 farms in north-western new south wales and south-western queensland over a 3 mo period. affected animals had a marked asymmetrical swelling of the face, extending from the nostril to just anterior to the eyes. they lost condition rapidly and died within 7 to 10 days. at necropsy there was a unilateral severe necrogranulomatous rhinitis with extension of inflammation into the adjacent subcutaneous tissue, nasal septum and hard palate. metastatic lesions were present in ...19921445069
progressive ataxia associated with degenerative thoracic myelopathy in merino sheep.a neurological disorder in merino sheep, characterised clinically by progressive posterior ataxia and microscopically by wallerian degeneration in thoracic segments of the spinal cord, is described. animals of both sexes were affected, with the earliest onset of disease being at 5 months of age. most affected animals died before 2 years of age. the clinical, pathological and epidemiological features suggest that this degenerative thoracic myelopathy is a previously unrecognised entity differing ...19911776933
a survey of antibody to aino virus in cattle and other species in australia.a serological survey of healthy cattle in australia showed that antibodies to aino virus were present in serums from cattle in northern australia and down the east coast as far as central new south wales in 1975, 1976 and 1977, but occurred with a lower frequency than antibodies to akabane virus. in contrast to the findings with akabane virus, no neutralising antibodies to aino virus were detected in serums from camels, dogs or horses. antibodies to both viruses were detected in buffaloes and sh ...1978718555
estimation of direct and indirect losses due to johnes disease in new south wales, australia. 19883232648
anthrax. human cutaneous anthrax--a case report. 19911911169
dieldrin and diazinon resistance in populations of the australian sheep blowfly, lucilia cuprina, from sheep-grazing areas and rubbish tips.populations of l. cuprina collected from adjacent sheep-grazing areas and rubbish tips in victoria (mansfield and warrnambool) and new south wales (lismore) were tested for resistance to the insecticides diazinon and dieldrin. populations from sheep-grazing areas had a significantly higher diazinon rop-1 allele frequency than those from adjacent tips with the victorian populations being more resistant than those from lismore. victorian sheep and tip populations had similar gene frequencies at th ...19846536262
the occurrence of antibody to bluetongue virus in new south wales. i. statewide surveys of cattle and sheep.two state-wide surveys were carried out in 1978 to detect bluetongue (blu) virus antibody in cattle and sheep sera in new south wales (nsw). the first survey showed that blu group antibody in cattle 18-24 months old was confined to the coastal regions (east of the great dividing range) and the hunter valley. however, in the second survey, of cattle more than 5 years old, reactors were much more widely distributed over the north-eastern third of the state and into the western division with preval ...19882856014
the blowfly strike problem of sheep in new south wales.a field survey was undertaken between 1972-76 to reappraise the nature of the blowfly problem in new south wales. for 2 years, 1972-1974, some 80,000 sheep were kept under observation and 12,481 strikes were reported, most due to lucilia cuprina. breech strike was still the basic problem but tail strike associated with scouring had become an important component where pastures have been improved. breech strike was controlled at minimal cost by managerial practices such as docking tails the correc ...1979518435
antibodies to akabane virus in australia.neutralising antibody to akabane virus was shown to develop in cattle in northern australia throughout the year and also on the east coast of new south wales in the summer during 1975/1976. other species found to have antibody to akabane virus were buffaloes, horses, camels and sheep, but no antibody was found in domestic chickens, ducks, wallabies or man. the biting midge culicoides brevitarsis has been detected in all the major areas where antibody was demonstrated in this study.1978655964
the incidence of thiabendazole resistance in field populations of haemonchus contortus on the northern tablelands of new south wales.a survey was undertaken to assess the incidence of thiabendazole resistance in field populations of h. contortus in sheep flocks on 40 farms distributed throughout the sheep grazing area of the northern tablelands of new south wales. treatment with thiabendazole at 66 mg/kg reduced h. contortus ova output by 96-100% in 18 flocks while in the remaining 22 there was a range of responses down to levels where the anthelmintic was without apparent effect. factors which may contribute to the high inci ...1979543833
immunogenicity of specific bordetella pertussis surface antigens in diphtheria-tetanus-pertussis (dtp) vaccines.the predominant causative organism of whooping cough in australia is of a serotype which has normally been associated overseas with unvaccinated communities. australian dtp vaccines pass the statutory mouse test for bordetella pertussis potency but this test is now believed to be relatively insensitive to certain factors, especially the major type-specific agglutinogens, which are presumably also important in the human host-parasite relationship. because endemic b. bronchiseptica infections make ...19882897927
caprine retrovirus infection in new south wales: virus isolations, clinical and histopathological findings and prevalence of antibody.caprine arthritis-encephalitis virus (caev) was isolated by explant cultures of carpal synovial membranes and lung from 7 goats in new south wales. these goats were clinically affected with the arthritic, neurologic, and pneumonic forms of caev infection either singly or in combination. caev antibody was detected by the gel immunodiffusion precipitin (gdp) test in 5 of the 7 goats. serum samples from 2,708 goats, from 115 herds, were examined for caev antibody using the gdp test. approximately o ...19863024613
experimental infection with murray valley encephalitis virus. pigs, cattle, sheep, dogs, rabbits, macropods and chickens.a total of 142 young animals including 10 domestic and 14 feral pigs, 12 hereford calves, 12 crossbred and 24 merino lambs, 11 dogs, 8 domestic and 16 feral rabbits, 14 grey kangaroos, 9 agile wallabies and 12 chickens was exposed to infection with 4 strains of murray valley encephalitis virus (mve), mainly using orally infected culex annulirostris mosquitoes. in terms of their viraemic response, the animals were grouped into high (grey kangaroos, rabbits), moderate (pigs, dogs, chickens) and lo ...19852990398
abnormalities in the electrocardiograms of young sheep and lambs grazing natural pastures low in selenium. 19685689334
the prevalence of itchmite, psorergates ovis, among sheep flocks with a history of fleece derangement.an investigation of sheep flocks in the main sheep raising areas of new south wales showed that the itchmite psorergates ovis was frequently associated with fleece derangement. in 26 of the 41 flocks examined, p. ovis was the only ectoparasite detected. p. ovis and the sheep body louse damalinia ovis, were found in 5 flocks. no external parasites were found on sheep examined from the 10 remaining flocks. the type of fleece derangement most frequently recorded was rubbing which in some cases was ...19902375718
abortions in sheep due to listeria ivanovii. 19912018457
an outbreak of vibriosis in sheep in new south wales. 19695815888
trapping sheep blowflies using bait-bins.a bait-bin designed to attract and kill sheep blowflies is described. it is composed of a garbage bin plus lid, attractant and insecticide-treated offal. fly entry holes are covered with differentiator wire to increase selectivity of kill. placing bait-bins in preferred habitats of blowflies to optimise kill is outlined and temporal insecticide strategies to increase effectiveness of kill and reduce blowfly resistance are suggested. preliminary data supporting the effectiveness of bait-bins in r ...19902375714
the characteristics and causes of sheep losses in the victorian mallee.the extent and causes of sheep losses in the semi-arid mallee region of north-western victoria were assessed by interviewing the owners of 79 randomly selected farms running 241 flocks in 1987/88 and 245 flocks in 1988/89. mean annual losses were higher in ram flocks (21%) than in ewe flocks (7%), in flocks of non-merino sheep (rams 24%, ewes 11%, weaners 5%) than in merino (rams 11%, ewes 6%, wethers 4%, weaners 4%) and in ewe flocks 3 or more years old (10%) than in young ewe flocks (3.5%). in ...19958585847
phalangeal bone ash as an aid in diagnosing some nutritional causes of lameness in sheep.normal bone ash levels were determined on first phalangeal bones from lambs dying of acute causes and from abattoir specimens. first phalanges were chosen because they represent a whole bone thereby ensuring constant and natural proportion which would be difficult if sampling only a portion of a bone. no practical difference in percentage ash, expressed in terms of green bone weight, was found between fore or hind feet of young male or female sheep. consequently a single regression equation can ...19854084147
changes in animal disease patterns in the riverina of new south wales. 19714931393
control of ostertagia ostertagi infections in australia.the control of ostertagia ostertagi infections in australia is aimed specifically at young cattle in their first and second year of grazing after weaning. mature breeding stock are not routinely treated. the recommended strategy is preventive, using an integrated approach of timed anthelmintic treatments in relation to the epidemiology of ostertagiasis in different environments. best results are obtained when treatments, given at weaning and 6 months later, are combined with a move to 'safe' pas ...19883284168
a pilot survey into hydatid disease incidence levels in sheep and cattle of new south wales. 19854062744
meningoencephalitis and other conditions associated with histophilus ovis infection in sheep.histophilus ovis was isolated from 29 sheep in 20 flocks and 2 artificial insemination (ai) centres in southern new south wales from 1984 to 1990. the clinical and pathological findings were consistent with previous reports and included polyarthritis (7 flocks), epididymo-orchitis (5), meningoencephalitis (3), pneumonia (3), septicaemia (2), mastitis (1) and metritis (1). six sheep had meningoencephalitis, a syndrome not previously associated with h ovis infection in sheep, which was similar pat ...19911807244
field trials of a formulation containing moxidectin and 6 in 1 vaccines for sheep.to assess the efficacy and safety of a formulation containing moxidectin and 6 in 1 vaccine in sheep under field conditions.19968894039
johne's disease in sheep.johne's disease was identified in sheep flocks on 6 farms in one area of the central tablelands of new south wales. the sources of infection were not determined and no common source of all infections was identified. the disease was not diagnosed in cattle that were run on 4 of the farms.19846497808
neonatal lamb losses due to feral pig predation.an investigation into causes of low lamb marking percentages was made on a property in north-west new south wales from 1971 to 1975. investigations revealed that from 11 to 70% of the ewes in lamb were losing all their lambs. observations suggested that feral pig predation was a factor in the perinatal loss. in 1975, 2 groups of ewes were placed in adjoining paddocks prior to lambing. feral pigs were excluded from one paddock for most of lambing by means of an electric fence. in this paddock, 11 ...1978743055
serological survey of the prevalence of toxoplasma gondii antibodies in rams in sheep flocks in new south wales.serum samples from 5724 rams on 534 farms in new south wales were tested in the indirect fluorescent antibody test for toxoplasmosis. nine per cent of rams had titres of 64 or higher and 41% of flocks had either one or more rams with a titre of 64 or higher. there were significant differences in the geographical distribution of infected flocks, ranging from 57.8% of flocks infected on the tablelands to 41% on the slopes and 22.4% on the plains. there were significantly more infected commercial f ...19826760848
an outbreak of micrencephaly in lambs in new south wales. 19744856951
an outbreak of malignant catarrhal fever in young rusa deer (cervus timorensis).on the basis of clinical signs and histological findings eight 9-month-old male rusa deer (cervus timorensis) were diagnosed with sheep associated-malignant catarrhal fever. following a variable course involving rectal temperatures around 40.5 degrees c, depression, inappetence, diarrhoea, corneal opacity and hypopyon all animals died or were euthanased over a 5-week period. severe multifocal vasculitis, mainly periglomerular and in the arcuate vessels were consistent histological findings which ...19979406629
anthelmintic evaluation of thiabendazole, phenzidole and phenzidole plus phenothiazine in field trials in new south wales. 19655892954
differentiation of australian isolates of mycobacterium paratuberculosis using pulsed-field gel electrophoresis.to examine strain variation amongst australian isolates of mycobacterium paratuberculosis.19979469224
clinical, pathological and epidemiological aspects of flood plain staggers, a corynetoxicosis of livestock grazing agrostis avenacea.flood plain staggers, a corynetoxicosis of grazing livestock, occurred on flood plains of the darling river in northern new south wales between spring 1990 and autumn 1991, associated with the grazing of agrostis avenacea with diseased inflorescences. over this period 1722 cattle, 2466 sheep and 11 horses died on 31 farms. clinical signs were similar in sheep and cattle, being characterised by intermittent episodes of cerebral convulsion superimposed on varying degrees of cerebellar dysfunction. ...19957661820
scrapie-free merino and poll dorset sheep from australia and new zealand have normal frequencies of scrapie-susceptible prp genotypes.as natural scrapie occurs only in sheep of specific prp genotypes, one proposed aetiology was that scrapie is simply a genetic disease. however, cheviot and suffolk sheep of scrapie-susceptible genotypes are found in australia and new zealand, both generally accepted to be scrapie-free countries. a study of more common australia and new zealand sheep breeds (merinos and poll dorsets) was carried out in order to obtain more generally applicable estimates of australia and new zealand sheep prp gen ...19989714260
application of elisa to the serological diagnosis of virulent ovine footrot.the sensitivity and specificity of an elisa that detects antibody in the serum of sheep against dichelobacter nodosus was investigated. the sensitivity of the assay was determined in two trials in which sheep free of virulent footrot were exposed to a virulent strain of d. nodosus. in the first trial up to 96.6% of sheep that developed severe foot lesions were seropositive 2 weeks later. the proportion of seropositive sheep depended on the interval between exposure to d. nodosus and collection o ...19947801518
australian exotic animal disease control plans. 19734351133
the return to coree: the surgical connection.samuel wilson purchased coree in 1865. in 1874 he donated 30000 pound sterling to melbourne university to build the wilson hall, used for ceremonial occasions including medical graduation. samuel mccaughey purchased coree in 1881. in 1919 he left large bequests used by sydney university to found the first chair of surgery. this was held by frances percival sandes from 1921 to 1928. david mccaughey died of general peritonitis at coree in 1899, his son samuel married una mckellar who was thomas du ...199910030818
epidemiology of hydatid disease in eastern new south wales. i. geographical distribution and incidence in sheep. 19666007743
anthrax explodes in an australian summer.anthrax occurred on 83 properties in an area of north central victoria between 26 january and 26 march in the summer of 1997. anthrax had not been recorded in the outbreak area since records were initiated in 1914, although anthrax did occur in the general area in the 1880s to 1890s. standard australian control measures were applied to the properties, including quarantine, tracing movements of animals on and off affected properties, secure disposal of carcases by burning, enhanced surveillance o ...199910475947
experiences with vaccination and epidemiological investigations on an anthrax outbreak in australia in 1997.between january and february 1997, there was a severe outbreak of anthrax on 83 properties in north-central victoria, australia. vaccination was used as a major tool to control the outbreak by establishing a vaccination buffer zone 30 km by 20 km. in all, 78, 649 cattle in 457 herds were vaccinated in a three week program. in the face of the outbreak, there was a delay before vaccination was able to stop deaths. in the 10 days following vaccination 144 cases of confirmed anthrax occurred and 38 ...199910475972
prevalence of the causes of fleece derangement among sheep flocks in new south wales.an investigation of sheep flocks with unknown histories of fleece derangement, selected at random from the main sheep raising areas of new south wales, showed that psorergates ovis was present in 53 of the 177 flocks surveyed and in 162 of the 3495 sheep examined. of the single causes of fleece derangement, the most prevalent was grass seed contamination (15.7%) followed by infestation with sheep body lice, bovicola ovis, (14.7%) and infestation with itch mite (7.8%). the prevalence of fleece de ...19938216084
poisoning of sheep in new south wales by the blue-green alga anacystis cyanea (kuetz.) dr. and dail. 19665336172
morphological characterization of adult echinococcus granulosus as a means of determining transmission patterns.host induced changes in morphological characters of the rostellar hooks of echinococcus granulosus were used to determine the origin of infection in definitive hosts in rural areas of southeastern australia where wild and domestic cycles of transmission may interact. the morphological characters studied vary depending on the species of intermediate host (macropod marsupials, sheep) in which protoscoleces develop, and these characters are retained in adult worms. it was therefore possible to dete ...19938437058
molecular epidemiology of mycobacterium avium subsp. paratuberculosis: is900 restriction fragment length polymorphism and is1311 polymorphism analyses of isolates from animals and a human in australia.the distribution and prevalence of strains of mycobacterium avium subsp. paratuberculosis were determined among sheep, cattle, and other species with johne's disease in australia. a total of 328 isolates were evaluated from numerous farms in new south wales, victoria, tasmania, and south australia, australia. restriction fragment length polymorphism (rflp) analysis of genomic dna using bsteii and an is900 probe and is1311 polymorphism analysis using pcr and restriction endonuclease analysis (pcr ...200010970365
serological studies of australian and papua new guinean cattle and australian sheep for the presence of antibodies against bluetongue group viruses.following isolation of a virus (csiro19) from insects in australia and its identification as bluetongue virus serotype 20 (btv20), a nationwide survey of antibodies in cattle and sheep sera was undertaken. initial studies using the serum neutralization (sn) test showed that the distribution of btv20 antibodies in cattle was confined to the northern part of australia. group-reactive antibody tests (agar gel diffusion precipitin, agdp, and complement-fixation, cf) showed group-reactive cattle sera ...19836306901
methods for assessing the impact of avermectins on the decomposer community of sheep pastures.this paper outlines methods which can be used in the field assessment of potentially toxic chemicals such as the avermectins. the procedures focus on measuring the effects of the drug on decomposer organisms and the nutrient cycling process in pastures grazed by sheep. measurements of decomposer activity are described along with methods for determining dry and organic matter loss and mineral loss from dung to the underlying soil. sampling methods for both micro- and macro-invertebrates are discu ...19938346652
factors affecting the prevalence and severity of footrot in a merino flock selected for resistance to haemonchus contortus.an outbreak of virulent footrot occurred in three lines of sheep selected for different levels of resistance to haemonchus contortus, providing an opportunity to examine the factors affecting footrot severity. the selection lines did not differ significantly in average footrot score, but various other factors were found to have an effect. in breeding ewes, the average score was 10.2 (maximum possible score 20) and the prevalence of footrot was 96%. there was a significant age effect, with averag ...19938257313
wildlife reservoir for human hydatidosis. 19968668088
ovine johne's disease in australia--the first 20 years.to review the history of ovine johne's disease in australia.200111549048
naphthalophos combinations with benzimidazoles or levamisole as effective anthelmintics for sheep.to investigate the relative efficacy and safety of the anthelmintic naphthalophos in sheep, either given alone or in combination with benzimidazole (fenbendazole and albendazole) or levamisole anthelmintics.19968894038
serological survey for toxoplasma infections in sheep.a factorial-design survey was performed to determine the prevalence of specific antibody against toxoplasma in young and adult sheep from 6 areas in 3 different geoclimatic zones in south australia. serum samples obtained from 1,159 sheep belonging to 59 flocks were tested by a conventional indirect haemagglutination test (ihat) as well as by an enzyme-linked immunosorbent assay (elisa) which used class-specific conjugates to detect both igg and igm against toxoplasma. titres greater than 64 wer ...19873606503
epidemiological studies on ovine brucellosis in selected ram flocks.the epidemiology of ovine brucellosis was investigated in 6 ram flocks in which anomalous reactions to the complement fixation test was recorded. it was shown that rams can become infected as young as 4 months of age. naturally infected animals have an epididymitis and excrete brucella ovis in their semen or they may only show a serological response for a short time then recover. the base line titres of chronically infected animals stay relatively constant. the importance of abortive infection a ...19827150131
quarantine requirements for the importation of black rhinoceros from zimbabwe into australia.the proposal by the zoological parks board of new south wales to import 10 southern black rhinoceros (diceros bicornis) from zimbabwe as part of an international project for conservation of the species presented the australian quarantine and inspection service (aqis) with a unique challenge. this importation is, at least in the modern era, the first importation of live herbivores from the african continent. many of the serious animal diseases in the world are endemic in parts of africa. knowledg ...19958599567
border disease in merino breeding flocks in western new south wales. 19827200768
pyrrolizidine alkaloid poisoning of sheep in new south wales.pyrrolizidine alkaloid poisoning of sheep in new south wales was reviewed, based on the records of the new south wales department of agriculture's regional veterinary laboratories. the plant species causing significant mortalities were echium plantagineum and heliotropium europaeum. the syndrome of hepatogenous chronic copper poisoning was more frequently diagnosed than primary pyrrolizidine alkaloid poisoning, particularly when grazing e. plantagineum. the data indicated that adult crossbred ew ...19873632498
influences of vector biology on transmission of arboviruses and outbreaks of disease: the culicoides brevitarsis model.the use of a model to appraise arboviral epizootics is described, and examples are given which demonstrated long-distance wind-dispersal of the biting-midge vector culicoides brevitarsis from the same endemic source. vector abundance is characterised by peaks and troughs of abundance, the patterns of which vary between localities and annually. short term climatic effects can change rapidly the age structure of a population, thus increasing the number of midges that can transmit a virus and profo ...19958545983
the efficacy of formulations of triclabendazole and ivermectin in combination against liver fluke (fasciola hepatica) and gastro-intestinal nematodes in cattle and sheep and sucking lice species in cattle.to assess the efficacy of two formulations of triclabendazole and ivermectin in combination against liver fluke (fasciola hepatica), gastro-intestinal nematodes and sucking louse species in cattle and sheep.200212465830
historical records of the veterinary profession in australia. 3. animal health and associated legislation in new south wales, from the foundation of the colony until 1900. 2. the bruce era. 19714942230
efficacy of ivermectin controlled-release capsules for the control and prevention of nasal bot infestations in sheep.to investigate the therapeutic and prophylactic efficacy of an ivermectin controlled-release capsule against nasal bots (oestrus ovis) in sheep.19979034497
ovine johne's disease: the risk associated with sheep imported into western australia.to assess the risk of johne's disease not being detected in sheep imported from new south wales into western australia.19989741723
the potential of nematophagous fungi to control the free-living stages of nematode parasites of sheep: studies with duddingtonia flagrans.the nematophagous fungus, duddingtonia flagrans, isolated from a fresh sheep faecal sample obtained from a farm in northern new south wales, australia, was subjected to a number of in vivo investigations in both surgically modified and normal sheep to determine its capacity to survive passage through the gastrointestinal tract. single and sustained dosing experiments established that between 5 x 10(5) and 10(6) chlamydospores/day resulted in a substantial (> 80%) reduction in the number of infec ...19989653996
waavp/pfizer award for excellence in veterinary parasitology research. my involvement in, and some thoughts for livestock parasitological research in australia.being presented with the waavp pfizer award for excellence in parasitological research is the pinnacle of my career. in accepting i acknowledge the support that i have received from workmates, colleagues, friends and family over the years that i have been involved in this field of endeavour. parasitic disease is the most significant threat to the australian sheep industry. a lack of understanding of drug action, the absence of epidemiologically-based treatment programs and incorrect or excessive ...200010681027
ovine johne's disease. 19979404611
specificity of absorbed elisa and agar gel immuno-diffusion tests for paratuberculosis in goats with observations about use of these tests in infected goats.to determine the specificity of serological tests that are currently used in veterinary diagnostic laboratories in australia for detection of mycobacterium avium subsp paratuberculosis infection in goats.200315084016
prevalence of caseous lymphadenitis and usage of caseous lymphadenitis vaccines in sheep flocks.to estimate the prevalence of caseous lymphadenitis (cla), determine the current usage of vaccines against cla and to measure the effectiveness of these vaccines on sheep farms.200315084020
combining data from morphological traits and genetic markers to determine transmission cycles in the tape worm, echinococcus granulosus.species of echinococcus (cestoda: taeniidae) require 2 mammalian hosts to complete their life-cycle; a carnivorous definitive host, and a herbivorous or omnivorous intermediate host. for most species of echinococcus, the definitive host range is restricted to 1 or a few species, but the intermediate host range is very broad. programmes to control hydatid disease attempt to break the life-cycle of the parasite and their effectiveness is therefore enhanced by an understanding of local patterns of ...19989778641
shiga toxin-producing escherichia coli in sheep and pre-slaughter lambs in eastern australia.sheep and lambs from 14 farms in southern queensland and one from central new south wales were surveyed to determine the prevalence of shiga toxin-producing escherichia coli (stec). stec, isolated from 45% of 144 sheep faeces collected on the farms and 36% of 72 lamb faeces from abattoir yards, were tested for the presence of genes encoding virulence factors. most (64%) of the 117 stec isolates contained shiga toxin 1 and 2 genes, 22% contained those encoding shiga toxin 1, and 14% contained gen ...199910347885
australian farm work injuries: incidence, diversity and personal risk factors.information on farm work-related injuries was sought to assist in the design of effective farm safety prevention programs. a telephone survey was conducted using a stratified random sample of 919 sheep/wool, beef cattle and dryland broadacre cropping farms from three shires in the wheat/sheep belt of new south wales. the adjusted response rate was 84%. there were 425 reported injuries over an 18-month period. one in five farms reported at least one injury per year, while one in 12 farms reported ...19969437142
staggers in sheep associated with the ingestion of tribulus terrestris.the history of an unusual locomotory disturbance of sheep is traced from its first recognition in 1937 through to the most recent outbreak in 1981-83. the condition occurred only at certain times and in restricted areas of the central and northern slopes districts of new south wales. outbreaks were repeatedly associated with drought periods during which sheep grazed large areas of tribulus terrestris for many months at a time. many thousands of sheep were affected, but the prevalence varied grea ...19846529397
control of gastrointestinal nematodes in australia in the 21st century.because the australian livestock industries rely overwhelmingly on year-round grazing of pastures, nematode parasites are of major concern. nematode parasitism is recognized as the cause of the most economically important diseases of sheep, while in cattle, the relative importance of nematode parasitism will probably increase following the eradication of diseases such as brucellosis and tuberculosis. the extraordinarily high prevalence of resistance to benzimidazoles, levamisole and morantel in ...19938484214
molecular epidemiological confirmation and circumstances of occurrence of sheep (s) strains of mycobacterium avium subsp. paratuberculosis in cases of paratuberculosis in cattle in australia and sheep and cattle in iceland.distinct strains of mycobacterium avium subsp. paratuberculosis with a tendency to segregate in either sheep, or cattle and other ruminants, have been described and are known as s and c strains, respectively. these strains can be distinguished by a polymorphism in the is1311 element and other dna-based methods. c strains are relatively easy to culture from tissues and faeces of animals with paratuberculosis but s strains are difficult to culture. a retrospective survey of archival formalin-fixed ...200111267791
epidemiology and control of menangle virus in pigs.to describe the epidemiology and eradication of menangle virus infection in pigs.200111301749
laboratory and field studies of an antigen capture elisa for bluetongue virus.an improved bluetongue antigen capture elisa (btace) technique was evaluated for its ability to detect the full range of 24 bluetongue (blu) serotypes. the btace detected all 24 serotypes in cell culture fluids, including eight serotypes where the representative strains originated from both australia and also from the south african reference collection. the amount of infectious virus required to obtain a positive btace result varied between 100-1000 tcid50. this was approximately 10-fold more se ...200010716347
sheep deaths after accidental ingestion of gypsum fertiliser. 19979034493
algal infection in sheep grazing irrigated pasture. 200111301751
sensitivity and specificity of pooled faecal culture and serology as flock-screening tests for detection of ovine paratuberculosis in australia.the flock-level sensitivity of pooled faecal culture and serological testing using agid for the detection of ovine johne's disease-infected flocks were estimated using non-gold-standard methods. the two tests were compared in an extensive field trial in 296 flocks in new south wales during 1998. in each flock, a sample of sheep was selected and tested for ovine johne's disease using both the agid and pooled faecal culture. the flock-specificity of pooled faecal culture also was estimated from re ...200211849717
gender and drought: experiences of australian women in the drought of the 1990s.a unique collaborative, sociological study undertaken during 1995-7, explored the social construction of drought as a disaster, looking at farm families in two australian states: queensland (beef producers) and new south wales (sheep/wheat producers). a decision was made to interview the women and men separately to test our hypothesis that there would be gender issues in any analysis of a disaster, but particularly one which has had so much long-term impact on individuals, families and communiti ...200010718013
isolation of mycobacterium avium subsp paratuberculosis from the semen of rams with clinical johne's disease. 200111789915
prevalence of virulent footrot in sheep flocks in southern new south wales. 19947848187
dietary protein for young grazing sheep: interactions with gastrointestinal parasitism.effects of protein supplementation and of nematode control on production responses in young grazing sheep and on nematode population dynamics were assessed. young merino wether sheep (n = 270) were allocated to one of three supplementation (su) treatments and one of three regimes of nematode control (drench, dr) in a factorial design. each of the nine treatments was replicated three times in a randomised complete block. animals received no supplement (su0) or were given supplements at a level eq ...19958747911
efficacy of a novel copper-based footbath preparation for the treatment of ovine footrot during the spread period.to determine the efficacy of a novel copper based footbath preparation (chf-1020) for treatment of ovine footrot during the spread period.19968941419
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