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Australian Veterinary Journal

E Bani Hassan, M Nouri, S Vogrin, M Pyman
BACKGROUND: Adjusting the dietary cation-anion difference (DCAD) is one of the most efficient ways to stimulate calcium homeostasis in periparturient dairy cattle. However, adjusting DCAD to the recommended negative values (-100 to -150 mEq/kg) is associated with decreased food intake and metabolic acidosis. The critical conditions of the animals at peripartum (i.e. drastic hormonal changes, decreased appetite and negative energy balance) can be detrimental to the health, productivity and welfare of the animals if combined with decreased feed intake caused by unpalatable acidogenic salts...
July 2018: Australian Veterinary Journal
J Pye, J Clulow, A Adkins
OBJECTIVE: To describe the laparoscopic transection of restrictive bands of the mesosalpinx as a useful adjunct to the topical application of prostaglandin E2 to treat mares with suspected uterine tubal blockage. METHODS: A standard left flank laparoscopic approach was made to the abdomen using three laparoscopic portals. If restrictive bands of the mesosalpinx were observed traversing the uterine tube perpendicularly, they were carefully transected and 1 mg of prostaglandin E2 was then applied to the external surface of the uterine tube...
July 2018: Australian Veterinary Journal
C A Evans, E Erregger, F Hemmatzadeh, P D Cockcroft
BACKGROUND: Although predominantly a disease of cattle, bovine viral diarrhoea virus (BVDV) is known to infect other ruminant and camelid species such as sheep and alpacas. The aims of this study were to determine if BVDV-naive alpacas would become acutely infected and seroconvert to the predominant Australian strain of BVDV following co-mingling with a BVDV-1c persistently infected (PI) heifer and to determine what, if any, clinical signs, haematological responses and selected biochemical changes occur with acute BVDV-1c infections in alpacas...
July 2018: Australian Veterinary Journal
N E Lean, N R Perkins, B J Ahern
BACKGROUND: Conventional radiography is currently the most common imaging modality used by veterinarians investigating foals with suspected osteomyelitis. Emerging evidence in adult horses and humans suggests computed tomography (CT) is a superior modality for evaluation of osseous changes in general. This study aimed to evaluate the potential benefits of CT versus conventional radiography in cases of osteomyelitis in foals. METHODS: Cases of osteomyelitis in foals under 6 months of age admitted over a 6-year period at a single referral hospital that had both CT and conventional radiography images were retrieved...
July 2018: Australian Veterinary Journal
B Gummow, Rhh Tan, R K Joice, G Burgess, J Picard
OBJECTIVE: To investigate the seroprevalence and associated risk factors of alphaviruses (Ross River virus (RRV), Barmah Forest virus (BFV) and Whataroa virus (WHAV)) in northern Queensland horses. METHODS: A cross-sectional study of alphavirus antibodies in horses (n = 287) from 147 properties in northern Queensland from September 2013 to June 2014 was conducted. Owners of sampled horses were interviewed on potential risk factors. Data were analysed for associations using multivariable logistic regression...
July 2018: Australian Veterinary Journal
C J Secombe, S R Bailey, M A de Laat, K J Hughes, A J Stewart, J M Sonis, Rhh Tan
The purpose of this article is to provide a review of the current knowledge and opinions about the epidemiology, clinical findings (including sequelae), diagnosis, treatment and monitoring of equine pituitary pars intermedia dysfunction, particularly in the Australian context. This information and the recommendations provided will assist practitioners in making informed decisions regarding the diagnosis and management of this disorder.
July 2018: Australian Veterinary Journal
C Turni, R Singh, P J Blackall
OBJECTIVE: Determine if there is a link between virulence-associated genes of Haemophilus parasuis and the genotype and serovar of isolates. METHODS: Isolates of H. parasuis from 38 farms across six Australian states, representing all serovars present in Australia, were assessed for the presence of virulence-associated genes (vtaA, hhdBA, fhuA, lsgB and capD). Enterobacterial Repetitive Intergenic Consensus PCR (ERIC-PCR) and multilocus sequence typing (MLST), together with existing knowledge of the serovar of the isolates and the health status of the source pig, were used to examine 75 Australian isolates of H...
June 2018: Australian Veterinary Journal
Alan Wilson
No abstract text is available yet for this article.
June 2018: Australian Veterinary Journal
S J Symes, J L Allen, P D Mansell, K L Woodward, K E Bailey, J R Gilkerson, G F Browning
BACKGROUND AND OBJECTIVE: Noroviruses have been recognised as a significant cause of neonatal enteritis in calves in many countries, but there has been no investigation of their occurrence in Australian cattle. This study aimed to establish whether bovine noroviruses could be detected in faecal samples from Australian dairy cattle. It also sought to determine whether bovine coronaviruses, also associated with neonatal enteritis in calves, could be detected in the same faecal samples. METHODS: A selection of faecal samples that were negative for rotaviruses from dairy farms located in three geographically distinct regions of Victoria were pooled and tested by reverse transcription-PCR for the presence of noroviruses (genogroup III), neboviruses and bovine coronaviruses...
June 2018: Australian Veterinary Journal
Bob Knight
No abstract text is available yet for this article.
June 2018: Australian Veterinary Journal
R F Slocombe
The only lesion found in a crossbred calf that died suddenly was a rare tumour in the myocardium of the left ventricle. The mass appeared similar to tumours discovered incidentally in the hearts of abattoir specimens in Italy, described as adenomatoid tumours. These are bimorphic tumours presumed to have a mesothelial origin. Although in a published study from Italy these tumours were considered incidental and clinically unimportant, I suggest that in this case the mass may have interfered with cardiac conduction, causing sudden death of the calf...
June 2018: Australian Veterinary Journal
K A Bond, L Franklin, B Sutton, M A Stevenson, S M Firestone
OBJECTIVE: To describe the epidemiological and clinical features of acute Q fever in Victoria from 1994 to 2013. DESIGN: Retrospective case series and spatiotemporal analyses of human notification data. METHODS: Records for all confirmed cases of Q fever in Victoria notified between 1994 and 2013 were reviewed. Clinical and epidemiological features of the cases were described and spatiotemporal analysis undertaken for all cases potentially acquired within Victoria...
June 2018: Australian Veterinary Journal
T Heath
No abstract text is available yet for this article.
June 2018: Australian Veterinary Journal
A M Cullimore, G D Lester, C J Secombe, K Campbell
CASE REPORT: A 7-year-old Clydesdale gelding was referred with a history of progressive lethargy and ventral oedema. The horse developed diarrhoea after treatment with antibiotics by the referring veterinarian. History, clinical signs, imaging and laboratory findings were consistent with hypertrophic cardiomyopathy complicated by antibiotic-associated colitis. Progression of clinical signs prompted euthanasia and the antemortem diagnosis of hypertrophic cardiomyopathy was confirmed at postmortem examination...
June 2018: Australian Veterinary Journal
K J Stanger, H McGregor, Jwa Larsen
OBJECTIVE: Identify the cause of outbreaks of diarrhoea during winter that are not attributable to gastrointestinal nematodes in weaned Merino sheep in the high rainfall regions of south-eastern Australia and determine the efficacy of antimicrobials used to treat this syndrome. METHODS: We investigated 45 outbreaks on 24 farms. Faecal samples from affected animals were cultured for Yersinia, Campylobacter and Salmonella spp. Risk factors, including rainfall, temperature and worm egg count (WEC), were assessed...
May 2018: Australian Veterinary Journal
D Mendez, L Foyle, R Cobbold, R Speare
BACKGROUND: To determine the rabies vaccination status of Queensland veterinarians and veterinary students and their perception of zoonotic risk from Australian bat lyssavirus (ABLV). DESIGN: Cross-sectional questionnaire surveys. METHODS: Questionnaires were sent by post in 2011 to veterinary surgeons registered in Queensland, to final-year veterinary students at James Cook University via SurveyMonkey® in 2013 and to final-year veterinary students at James Cook University and University of Queensland via SurveyMonkey® in 2014...
May 2018: Australian Veterinary Journal
D A Watt
No abstract text is available yet for this article.
May 2018: Australian Veterinary Journal
C C Shekell, M J Thomson, R I Miller, J T Mackie
CASE REPORT: A 6-year-old speyed female Bull Arab-cross dog was found to have a small tonsillar nodule. Histological examination revealed a well-differentiated mast cell tumour (MCT). At initial staging, no evidence of concurrent cutaneous or visceral MCTs was found on a complete blood count, a single lateral thoracic radiograph, abdominal ultrasound or cytology of the spleen and regional lymph nodes. A diagnosis of primary tonsillar MCT was made. At 40 months postoperatively, the dog is alive with no evidence of gross tumour progression, in contrast to some previous reports of rapid disease progression and metastasis in dogs with primary oral MCTs...
May 2018: Australian Veterinary Journal
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