Wintersweet (Chimonanthus praecox) toxicity in four goats     

RW Numan  SS Ackermann  JS Shelgren 《New Zealand veterinary journal》2016,64(3):179-181

CASE HISTORY: A one-year-old female goat presented with acute onset of recumbency, seizures and vocalisation approximately 5 hours after being given access to branch trimmings from a neighbour's garden. The plant from which the pruned branches came was subsequently identified as wintersweet (Chimonanthus praecox). Three other goats kept in the same paddock displayed similar clinical signs over a period of 4 hours following the initial presentation.

CLINICAL FINDINGS: All four goats were ataxic, displayed tetanic seizures and were in lateral recumbency; they had dilated pupils and were hyperaesthetic, with elevated heart and respiratory rates. After symptomatic treatment, including sedation with diazepam, one of the three goats continued to deteriorate and was subjected to euthanasia. The remaining three goats recovered over 1–14 days with nursing care and physiotherapy.

DIAGNOSIS: Toxicity due to ingestion of wintersweet, which contains the alkaloid calycanthine.

CLINICAL RELEVANCE: Calycanthine is a central nervous system toxin, causing convulsions. Wintersweet shrubs are present in many New Zealand gardens. Practitioners should be aware that the seeds and flowers, and possibly the leaves, of this plant are highly toxic with signs of toxicity including ataxia, hyperaesthesia and seizures.  相似文献   

Antimicrobial resistance genes in Actinobacillus pleuropneumoniae,Haemophilus parasuis and Pasteurella multocida isolated from Australian pigs          下载免费PDF全文

DAE Dayao  JS Gibson  PJ Blackall  C Turni 《Australian veterinary journal》2016,94(7):227-231

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Incidence and risk factors of heat-related illness in dogs from New South Wales,Australia (1997–2017)     

JS Tripovich  B Wilson  PD McGreevy  A Quain 《Australian veterinary journal》2023,101(12):490-501

Heat Related Illness (HRI) in dogs is expected to increase as heatwaves surge due to global warming. The most severe form of HRI, heat stroke, is potentially fatal in dogs. The current study investigated the incidence and risk factors for HRI in dogs in NSW, Australia, from 1997 to 2017. We identified 119 HRI cases during this period, with a fatality rate of 23%. Dog breeds at elevated risk of HRI were Australian Stumpy Tail Cattle Dog, British Bulldog, French Bulldog, Maremma Sheepdog, Italian Greyhound, Chow Chow, Airedale Terrier, Pug, Samoyed, English Springer Spaniel, Labrador Retriever, Golden Retriever, Cavalier King Charles Spaniel, Border Collie, Staffordshire Bull Terrier, and pooled non-Australian National Kennel Council breeds (which included the American and Australian Bulldog) when compared with cross breeds (i.e., the reference variable). As expected, HRI cases were more likely in December and January, during the Australian summer and during hotter years (e.g., 2016). There were no differences in the risk of HRI between males and females nor between desexed or un-desexed dogs; but older dogs were at increased risk of HRI. These findings underscore the need for data collection that will enable the incidence of HRI in dogs to be monitored and to better understand canine risk factors particularly as temperatures will continue to rise due to global warming. The risk of mortality from HRI underpins the need for education programs focussed on prevention and early identification of HRI so that owners present affected dogs to their veterinarian as promptly as possible.  相似文献   

Temporary protection of rainbow trout gill epithelial cells from infection with viral haemorrhagic septicaemia virus IVb          下载免费PDF全文

L Al‐Hussinee  PH Pham  S Russell  L Tubbs  C Tafalla  NC Bols  B Dixon  JS Lumsden 《Journal of fish diseases》2016,39(9):1099-1112

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Bilateral oblique facial clefts,rudimentary eyes and hydrocephalus in an aborted equine foetus          下载免费PDF全文

JS Agerholm  HG Pedersen  FJ McEvoy  S Heegaard 《Reproduction in domestic animals》2017,52(4):692-695

Knowledge of congenital malformations and their causes in horses is generally sparse. Such conditions require more scientific attention to improve their diagnostics and inform prevention strategies. Here, a unique syndrome of bilateral oblique facial clefts (meloschisis), rudimentary eyes and hydrocephalus is reported in an equine foetus spontaneously aborted at gestation day 224. The cause of abortion was considered to be intrauterine death caused by umbilical cord torsions and subsequent compromised blood flow, but the aetiology of the malformation could not be determined. A detailed history, which includes exposure to a range of pharmaceutical compounds during the early stages of pregnancy, is provided and emphasizes the need for accurate recording of treatments in pregnant animals.  相似文献   

Relationship between sources of pet acquisition and euthanasia of cats and dogs in an animal shelter: a pilot study          下载免费PDF全文

AI Arbe Montoya  JS Rand  RM Greer  C Alberthsen  D Vankan 《Australian veterinary journal》2017,95(6):194-200

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Environmental factors on virulence of <Emphasis Type="Italic">Aeromonas hydrophila</Emphasis>     

Ruan E. F. Abreu  Thaís C Magalhães  Renilde C Souza  Samira TL Oliveira  Adriana MG Ibelli  Fábio N Demarqui  João JS Gouveia  Mateus M Costa  Gisele V Gouveia 《Aquaculture International》2018,26(2):495-507

Aeromonas hydrophila are known for being opportunistic pathogens, harboring various virulence factors and triggering lesions and death in fish. The disease caused by bacteria can make fish inappropriate for human consumption, besides representing a risk to public health. The pathogenesis can be influenced by environmental variables, affecting fish productivity and mortality. The present study aimed to determine whether A. hydrophila harbor the virulence genes aerolysin, hydrolipase, elastase, lipase, cytotonic enterotoxin (ast), lateral flagellum (laf), and polar flagellum (fla) and to evaluate the influence of environmental variables on in vitro growth, in vivo virulence and expression of some of these genes. Polymerase chain reaction (PCR)-based screening for the presence of these virulence genes was performed on 35 isolates. Six isolates containing different profiles of virulence genes were tested for in vitro growth under different conditions of pH, temperature, and ammonia and for in vivo virulence under these same environmental conditions. RT-qPCR was used to quantify the expression of aerolysin, lipase, and fla genes. All the tested environmental factors influenced the growth of A. hydrophila, while pH and ammonia concentrations influenced the bacterial virulence. The expression of the fla gene increased when bacteria were grown in higher ammonia concentration. The mortality established by Aeromonas is influenced by several environmental factors pinpointing the importance of its control in fish farming to avoid higher economic loses associated to bacterial disease outbreaks.  相似文献   

Evaluation of a polyurethane jugular catheter in cats placed using a modified Seldinger technique     

GJW MARTIN  JS RAND 《Australian veterinary journal》1999,77(4):250-254

OBJECTIVE: To describe and evaluate the placement of a new design of polyurethane jugular catheter in cats using a modification of the technique of Seldinger. The maintenance and use of these catheters for repeated blood sampling over several days in healthy and diabetic cats is reported. PROCEDURE: Thirty polyurethane jugular catheters were placed in 10 clinically healthy cats and 10 cats with diabetes mellitus using the modified Seldinger technique. Catheters were placed while the cats were under general anaesthesia. RESULTS: The catheters remained in place for a range of 2 to 14 days (median 5 days) with no major complications. In all cats patency of the catheters was maintained until removal. All cats examined had patent jugular veins when assessed 4 or more weeks after the catheters were removed. CONCLUSIONS: These polyurethane jugular catheters, when placed by a modified Seldinger technique, are effective and safe in cats, and jugular patency returns after the catheters are removed.  相似文献   

Diagnosis and therapy     

JS SMITH 《Australian veterinary journal》1999,77(9):566-566

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Ages of prehistoric earthquakes revealed by cosmogenic chlorine-36 in a bedrock fault scarp at hebgen lake   总被引：3，自引：0，他引：3  

M Zreda  JS Noller 《Science (New York, N.Y.)》1998,282(5391):1097-1099

Cosmogenic chlorine-36 reveals dates of the multiple prehistoric earthquakes that have produced a scarp on the Hebgen Lake fault. Apparent chlorine-36 ages are stratigraphically correct, follow a predicted theoretical pattern, and produce geologically reasonable model ages of 24, 20, 7.0, 2.6, 1.7, and 0.4 thousand years ago. This result demonstrates the feasibility of using cosmogenic chlorine-36 to extract paleoearthquake records from bedrock fault scarps.  相似文献