Laser-Doppler Measurements of Spinal Cord Blood Flow Changes During Hemilaminectomy in Chondrodystrophic Dogs with Disk Extrusion     

YASMINDA MALIK  DVM    DAVID SPRENG  DVM  Diplomate ECVS & ACVECC    MARTIN KONAR  DVM  Diplomate ECVDI    MARCUS G. DOHERR  DVM  PhD  Diplomate ECVPH    RE JAGGY  PhD  Diplomate ECVN    JUDITH HOWARD  DVM  Diplomate ACVIM    FRANCK FORTERRE  DVM  Diplomate ECVS 《Veterinary surgery : VS》2009,38(4):457-462

Objectives— (1) To assess spinal cord blood flow (SCBF) during surgical treatment of disk extrusion in dogs and (2) to investigate associations between SCBF, clinical signs, presurgical MRI images, and 24-hour surgical outcome.
Study Design— Cohort study.
Animals— Chondrodystrophic dogs with thoracolumbar disk extrusion (n=12).
Methods— Diagnosis was based on clinical signs and MRI findings, and confirmed at surgery. Regional SCBF was measured intraoperatively by laser-Doppler flowmetry before, immediately after surgical spinal cord decompression, and after 15 minutes of lavaging the lesion. Care was taken to ensure a standardized surgical procedure to minimize factors that could influence measurement readings.
Results— A significant increase in intraoperative SCBF was found in all dogs (Wilcoxon's signed-rank test; P =.05) immediately after spinal cord decompression and after 15 minutes. Changes in SCBF were not associated with duration of clinical signs; initial or 24-hour neurologic status; or degree of spinal cord compression assessed by MRI.
Conclusion— SCBF increases immediately after spinal cord decompression in dogs with disk herniation; however, increased SCBF was not associated with a diminished 24-hour neurologic status.
Clinical Relevance— An increase in SCBF does not appear to be either associated with the degree of spinal cord compression or of a magnitude sufficient to outweigh the benefit of surgical decompression by resulting in clinically relevant changes in 24-hour outcome.  相似文献   

A Survey of Logger Concerns When Working with Small Woodland Owners     

Tamara L. Cushing  Francisca Belart  Steve Bowers 《Small-Scale Forestry》2018,17(4):523-534

Many small woodland owners will harvest timber only once in their lifetime. Their expectations of a logging operation do not often match with reality. On the other side of the equation, loggers express frustration when working with small woodland owners. The jobs are smaller and often come with complications not found with industrial forest owners. Adding to this is the fact that the two parties often aren’t speaking the same language. In order to better prepare landowners for this operation, we surveyed logging contractors to learn about the interactions with small woodland owners in Oregon, USA. The mail survey focused on how jobs were bid, use of contracts, and difficulties that loggers had when working with small woodland owners. Results provide information that confirms the challenges present when working with many individual owners who do not have experience with harvest operations. Survey results also confirm that the logging workforce in Oregon is aging on average. Results showed no correlation between the number of years working as a logger and responses to other questions.  相似文献   

Pulmonary adiaspiromycosis in critically endangered northern hairy‐nosed wombats (Lasiorhinus krefftii)          下载免费PDF全文

AB Schaffer‐White  D Harper  M Mayhew  A McKinnon  L Knott  RE Allavena 《Australian veterinary journal》2017,95(11):431-436

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水分胁迫下4种冷季型草坪草抗旱性比较研究   总被引：1，自引：0，他引：1  

初晓辉  岳信龙  任健  陈功  单贵莲 《草原与草坪》2012,32(4):15-19

采用盆栽育苗法,研究了4种冷季型草坪草在不同水分胁迫下的抗旱性,结果表明:1)随着水分胁迫程度的加深,4种冷季型草坪草的外观质量和叶片相对含水量显著下降,细胞质膜透性、MDA含量和Pro含量上升。2)模糊数学综合评价结果表明,4种冷季型草坪草种抗旱性能由强到弱的顺序为:高羊茅>多年生黑麦草>草地早熟禾>匍匐翦股颖。  相似文献   

Everyday leadership: make your mark     

S Mesenhowski  EA Nunamaker  MC Austin-Gundel  ED Casey  L Todd  AJ Bowers  D Brown  JT Feutz  C Gargamelli  M Kohles 《Journal of the American Veterinary Medical Association》2012,241(3):309-312

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Diversity and assembly of weed communities: contrasting responses across cropping systems   总被引：2，自引：0，他引：2  

A LÉGÈRE  F C STEVENSON†  & D L BENOIT‡ 《Weed Research》2005,45(4):303-315

Diversity and weed community composition of mid-season plant stands and autumn seedbanks were examined in spring barley–red clover cropping systems that varied according to crop rotation, tillage and weed management. Weed plant and seed density data collected over 4 years were used in the calculation of species richness (number of species), evenness (Shannon's E) and diversity (Shannon's H′), and in multivariate analysis (canonical discriminant analysis) of weed communities. Weed diversity indices were low (H′ < 2.0) but sensitive to management practices. Evenness had intermediate values (E = 0.4–0.8), suggesting little evidence of truly dominant species, particularly in the seedbanks. The difference in the number of species between treatments was never large (approximately two to four species). Overall, diversity indices were highest in the low disturbance treatments, particularly those with minimum weed management. Factors affecting ordination were somewhat different from those affecting diversity. Tillage had little effect on weed diversity indices but had a more major role in determining weed community composition. Seedbanks in no-till and monoculture-chisel plough treatments appeared to have more distinctive species composition compared with other treatments. Weed species assembly in seedbanks showed little discrimination across treatments and over time, confirming the ability of seedbanks to buffer disturbances across a variety of cropping systems. The use of diversity indices revealed part of the complexity of weed communities associated with disturbance in cropping systems, whereas ordination singled out species–cropping systems associations, which may be more meaningful to weed management.  相似文献   

A08Effects of human-animal interaction on the behaviour and saliva cortisol levels of dogs kept in an animal shelter long term     

R. BARBERO  P. BADINO  R. ODORE  C. GIRARDI  G. RE  L. OZELLA  M. C. OSELLA  P. SAVARINO  & L. BERGAMASCO 《Journal of veterinary pharmacology and therapeutics》2006,29(S1):57-58

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A01Concentrations of lymphocyte muscarinic receptors (MR), platelet α₂-adrenoceptors (α₂-AR) and blood monoamines in the ageing dog     

P. BADINO  R. BARBERO  B. CUNIBERTI  R. ODORE  M. C. OSELLA  A. D'ANGELO  C. GIRARDI  & G. RE 《Journal of veterinary pharmacology and therapeutics》2006,29(S1):51-52

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Protection against ovine footrot using a topical preparation of zinc sulphate     

DJ MARSHALL  RI WALKER  RE COVENY 《Australian veterinary journal》1991,68(5):186-188

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The effects of hydrogen peroxide on the stress response of Atlantic Salmon (Salmo salar)     

Bowers JM  Speare DJ  Burka JF 《Journal of veterinary pharmacology and therapeutics》2002,25(4):311-313

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