Causes of death in sheep exported live by sea     

RB RICHARDS  RT NORRIS  RH DUNLOP  NC McQUADE 《Australian veterinary journal》1989,66(2):33-38

Post-mortem examinations were conducted on 950 dead and terminally ill sheep during assembly for export and during transport by sea from Fremantle, Western Australia to various Middle East ports. Causes of death were grouped into 5 major categories; inanition (deaths associated with reduced feed intake, including hypocalcaemia and hypomagnesaemia), salmonellosis (enteric and septicaemic), trauma, diseases associated with excessive feed intake (lactic acidosis and enterotoxaemia) and miscellaneous diseases (mostly of farm origin). During assembly the causes of death were salmonellosis 53.4%, miscellaneous diseases 23.8%, trauma 12.6%, inanition 10.2%, acidosis 3.9%, enterotoxaemia 3.4% and no diagnosis was made in 3.4%. During shipping the causes of death in defined populations of sheep in 5 voyages were; inanition 43.4%, salmonellosis 20.2%, trauma 10.6%, miscellaneous diseases 5.9%, enterotoxaemia 1.0% and no diagnosis was made in 19.0%. The range of mortality rates per 10,000 sheep at risk for the first 11 days at sea in 5 voyages were inanition 52.6 to 76.7, salmonellosis 7.8 to 109.8, trauma 2.1 to 17.1, miscellaneous diseases 5.9 to 17.1 and enterotoxaemia nil to 10.3.  相似文献   

Naturally occurring Eperythrozoon ovis infection in sheep reduces wool production     

MJ KABAY  FM SUNDERMAN  RB RICHARDS  TM ELLIS 《Australian veterinary journal》1992,69(9):232-232

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THE LIFE OF BOOKS     

Leidy J 《Science (New York, N.Y.)》1931,73(1896):478-480

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Investigation of Johne's disease in Tasmanian fallow deer (Dama dama)     

RB Jackson  DJ Kennedy  ESG Sergeant 《Australian veterinary journal》2021,99(1-2):44-45

In 2012 when many sheep flocks in northern‐central Tasmania were experiencing a high prevalence of ovine Johne's disease, 34 wild adult fallow deer shot on or near infected properties were negative to microscopic Mptb lesions of the ileo‐caecal valve, terminal ileum and ileo‐caecal lymph nodes. This study demonstrated 95% confidence of detecting Johne's disease in this fallow deer population if ≥10% of animals were shedding Mycobacterium avium subsp. paratuberculosis in their faeces, or if ≥21% of animals were sub‐clinically infected.  相似文献   

Ulcerative dermatitis associate with Uronema sp infection of farmed sand whiting Sillago ciliata     

PA GILL  RB 《Australian veterinary journal》1997,75(5):357-357

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A field case of ivermectin resistance in Ostertagia of sheep     

N. SWAN  J J GARDNER  RB BESIER  R. WROTH 《Australian veterinary journal》1994,71(9):302-303

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Endemic Microsporum canis infection in a sheep flock     

RB JACKSON  BF PEEL  C DONALDSON-WOOD 《Australian veterinary journal》1991,68(3):122-122

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Victor Wallace Smith          下载免费PDF全文

RB Richards 《Australian veterinary journal》2015,93(5):173-173

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Magnetic resonance imaging and computed tomography findings of Dyke‐Davidoff‐Masson‐like syndrome in a cat          下载免费PDF全文

RB Song  EN Glass  M Kent  FA Castro  A de Lahunta 《Australian veterinary journal》2015,93(10):377-380

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Measurement of cardiac output by transesophageal Doppler ultrasonography in anesthetized dogs: comparison with thermodilution     

T Lazic  DH Riedesel  RB Evans 《Veterinary anaesthesia and analgesia》2003,30(2):104-105

Thermodilution (TD) is the standard method for cardiac output (CO) monitoring in human medicine. Although called the ‘gold standard’, TD is related to numerous complications and data misinterpretations. Recently, a noninvasive, continuous, ultrasound‐based technique for CO measurement has been developed (Hemosonic 100, Arrow Intl). This study compared transesophageal Doppler ultrasonography (TED) for measuring CO with TD in anesthetized dogs. In this study, ten dogs were used to simultaneously measure CO by TED and TD. All dogs were pre‐medicated with acepromazine at 0.1 mg kg^?1 IM, induced with thiopental at 10 mg kg^?1 IV, and maintained on isoflurane at end‐tidal concentrations of 1.3%. Baseline and four different levels of CO were used for comparison. Low CO levels were induced by caudal vena cava occlusion. High CO levels were induced by the constant IV infusion of dopamine, dobutamine, or norepinephrine. Each level of CO allowed one comparison between TED and TD. Forty‐nine paired comparisons of CO were determined ranging from 0.73 to 10.9 L minute^?1. Simple linear regression was used to determine the correlation between the two techniques. Correlation coefficient (r²) was 0.53. Bland and Altman statistical method was used for assessing agreement between the two methods. The difference between the TD and TED when all data were included was 0.82 (bias) ± 1.63 L minute^?1 (mean ± SD). At low CO levels (baseline and caudal vena cava occlusion), the correlation coefficient was 0.77, bias was 0.35 ± 0.64 L minute^?1. At high CO levels (dopamine, dobutamine, or norepinephrine), the correlation coefficient was 0.39. It was concluded that TED was not a reliable monitoring method in determining CO when positive inotropes were used. TED might have importance in situations of low CO values; however, further investigation is warranted.  相似文献