Extensive resection and anastomosis of the descending (small) colon in a mare following strangulation by a mesenteric lipoma     

AJ DART  JR SNYDER  JR PASCOE 《Australian veterinary journal》1991,68(2):61-64

A 17-year-old Quarter Horse, Arabian crossbred mare presented with a history of having had abdominal pain for 2 d. At surgery there was 2.6 m of descending colon strangulated within the pedicle of a mesenteric lipoma. The lipoma was resected and the descending colon appeared viable so was replaced, and the mare recovered from anaesthesia. Post-operatively, the mare failed to stabilise so was taken back to surgery. There was 2 m of infarcted descending colon which was resected and anastomosed. A drain and stainless steel stay sutures were incorporated into the ventral suture line. Post-operatively the ventral wound became infected but was resolved with therapy. The diagnosis, surgical and post-operative management and outcome are discussed.  相似文献   

Traumatic rupture of the urinary bladder in a horse     

C. BECK  AJ DART  SA McCLINTOCK  DR HODGSON 《Australian veterinary journal》1996,73(4):154-155

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Negative findings from serological studies of equine morbillivirus in the Queensland horse population   总被引：2，自引：0，他引：2  

MP WARD  PF BLACK  AJ CHILDS  FC BALDOCK  WR WEBSTER  BJ RODWELL  SL BROUWER 《Australian veterinary journal》1996,74(3):241-243

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Producing progeny from endangered birds of prey: treatment of urine-contaminated semen and a novel intramagnal insemination approach.     

Juan Manuel Blanco  George F Gee  David E Wildt  Ann M Donoghue 《Journal of zoo and wildlife medicine》2002,33(1):1-7

Wild raptors brought into an ex situ environment often have poor semen quality that is further compromised by urine contamination. Generally, it is believed that in birds, artificial insemination into the cloaca or caudal vagina of females requires large doses of high-quality spermatozoa to maximize fertility. In an effort to define and overcome some of the challenges associated with reproduction in wild raptors, the objectives of this study were to 1) evaluate the frequency, impact, and remediation of urine contamination in fresh ejaculates for the purpose of maintaining sperm motility and viability in vitro, and 2) develop a deep insemination method that allows low numbers of washed sperm to be placed directly into the magnum to increase the probability of producing fertilized eggs. The species evaluated include golden eagle (Aquila chrysoetos), imperial eagle (A. adalberti), Bonelli's eagle (Hiernaetus fasciatus), and peregrine falcon (Falco peregrinus). Semen samples were collected and pooled by species, and a minimum of 25 pooled ejaculates per species were evaluated for urine contamination, pH, sperm viability, and sperm motility; the samples were either unwashed or washed in neutral (pH 7.0) or alkaline (pH 8.0) modified Lake's diluent. Female golden eagles and peregrine falcons were inseminated via transjunctional, intramagnal insemination with washed spermatozoa from urine-contaminated samples. Urine contamination occurred in 36.8 +/- 12.8% (mean +/- SEM) golden eagle, 43.1 +/- 9.1% imperial eagle. 28.7 +/- 16.1% Bonelli's eagle, and 48.2 +/- 17.3% peregrine falcon ejaculates. The pH in urine-contaminated semen samples ranged from 6.48 +/- 0.3 to 6.86 +/- 0.2, and in noncontaminated samples it ranged from from 7.17 +/- 0.1 to 7.56 +/- 0.1. Sperm viability and motility were reduced (P < 0.05) in all species for unwashed vs. washed sperm after 30 min incubation at room temperature. Two peregrine falcon chicks and one golden eagle chick hatched after intramagnal insemination. This study demonstrates that urine contamination, a common and lethal acidifier in manually collected raptor ejaculates, can be circumvented by immediate, gentle seminal washing. Furthermore, these processed sperm, when deposited by transjunctional intramagnal insemination, can produce live young.  相似文献   

Lasers and laser-tissue interaction.   总被引：2，自引：0，他引：2  

George M Peavy 《Veterinary Clinics of North America: Small Animal Practice》2002,32(3):517-34, v-vi

Light produced by a laser differs from incandescent light in that it is monochromatic, coherent, and intense; and it is these properties that allow lasers to be used as such unique tools in biomedical research and patient care. The effect of a laser beam on tissue is dependent on the optical and mechanical properties of the tissue, and the wavelength, power parameters, and time domains of the laser exposure. Understanding these principles is not only important for the selection of an appropriate laser system for a specific application, but also is essential for that application to be successful.  相似文献   

Relationships between landcover proportion and indices of landscape spatial pattern   总被引：10，自引：0，他引：10  

Eric J. Gustafson  George R. Parker 《Landscape Ecology》1992,7(2):101-110

Recent studies have related percolation theory and critical phenomena to the spatial pattern of landscapes. We generated simulated landscapes of forest and non-forest landcover to investigate the relationship between the proportion of forest (P_i) and indices of patch spatial pattern. One set of landscapes was generated by randomly assigning each pixel independently of other pixels, and a second set was generated by randomly assigning rectilinear clumps of pixels. Indices of spatial pattern were calculated and plotted against P_i. The random-clump landscapes were also compared with real agricultural landscapes. The results support the use of percolation models as neutral models in landscape ecology, and the performance of the indices studied with these neutral models can be used to help interpret those indices calculated for real landscapes.  相似文献   

Conservative management of minimally displaced radial fractures in three horses     

S. MATTHEWS  AJ DART  BA DOWLING  DR HODGSON 《Australian veterinary journal》2002,80(1):44-47

Minimally displaced, spiral, radial fractures were diagnosed in three adult horses. Two horses had open fractures and in one horse the fracture was closed. A diagnosis was made on radiographs taken 24 h, 5, and 9 days after the fracture. There was minimal displacement of the fracture fragments despite the considerable time which had elapsed between fracture and diagnosis and an unfavourable prognosis with internal fixation, so conservative therapy was the preferred method of treatment. One horse developed a sequestrum and draining sinus, which was treated surgically under general anaesthesia 3 months after diagnosis of the fracture. Other complications were minimal and transient. Two horses were being used for pleasure riding 12 months after fracture and one horse was pasture sound at 8 months.  相似文献   

The benefits of implementing a pet insurance program for clinic staff          下载免费PDF全文

George Guernsey 《The Canadian veterinary journal. La revue veterinaire canadienne》2002,43(2):99

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Surgical correction of anorectal atresia and rectovaginal fistula in an alpaca cria     

DB CARRARO  AJ DART  NPH HUDSON  CM DART  DR HODGSON 《Australian veterinary journal》1996,74(5):352-354

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High-resolution maps of forest-urban watersheds present an opportunity for ecologists and managers     

Kirk M. Stueve  Tom P. Hollenhorst  John R. Kelly  Lucinda B. Johnson  George E. Host 《Landscape Ecology》2015,30(2):313-323

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