Influence of orthopedic examination on lameness scores and interobserver and intraobserver agreement in dogs with naturally occurring elbow osteoarthritis     

Karanvir S. Aulakh BVSc & AH  MS  MS  CCRP  DACVS-SA  Kaustubh R. Dongaonkar BVSc & AH  MVSc  Katherine Barnes DVM  MS  CCRP  DACVS-SA  Alberto J. Gines DVM  DECVS  Jude T. Bordelon DVM  MS  MBA  DACVS-SA  Don Hulse DVM  DACVS  DECVS  Harmeet K. Aulakh BVSc & AH  MVSc  DACVIM  Chin-Chi Liu MS  MApStat  PhD 《Veterinary surgery : VS》2020,49(3):455-462

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Effect of sedation or general anesthesia on elbow goniometry and thoracic limb circumference measurements in dogs with naturally occurring elbow osteoarthritis     

Emily Clarke DVM  Karanvir S. Aulakh BVSc & AH  MS  MS  CCRP  DACVS-SA  Caleb Hudson DVM  MS  DACVS-SA  Katherine Barnes DVM  MS  CCRP  DACVS-SA  J. Alberto Gines DVM  DECVS  Chin-Chi Liu MS  MApStat  PhD  Harmeet K. Aulakh BVSc & AH  MVSc  DACVIM 《Veterinary surgery : VS》2020,49(7):1428-1436

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Equine neural angiostrongylosis     

JD WRIGHT  WR KELLY†  J. HAMILTON  AH WADELL† 《Australian veterinary journal》1991,68(2):58-60

Verminous encephalomyelitis due to Angiostrongylus cantonensis larvae was diagnosed in 2 foals at necropsy. The principal clinical feature was tetraparesis, although history and neurological examination revealed progressive and multifocal neurological disease. At presentation, a tentative diagnosis of parasitic larval migration involving the central nervous system (CNS), presumably due to Strongylus vulgaris, was proposed. Dissection of the spinal cord in one case resulted in recovery of intact larvae of both sexes of A. cantonensis. In both foals, histopathology of the brain and spinal cord revealed nematode sections which were consistent with A. cantonensis larvae.  相似文献   

Use of deep nasopharyngeal swabs as a predictive diagnostic method for natural respiratory infections in calves     

Godinho KS  Sarasola P  Renoult E  Tilt N  Keane S  Windsor GD  Rowan TG  Sunderland SJ 《The Veterinary record》2007,160(1):22-25

An epidural puncture was performed using the lumbosacral approach in 18 dogs, and the lack of resistance to an injection of saline was used to determine that the needle was positioned correctly. The dogs' arterial blood pressure and epidural pressure were recorded. They were randomly assigned to two groups: in one group an injection of a mixture of local anaesthetic agents was made slowly over 90 seconds and in the other it was made over 30 seconds. After 10 minutes contrast radiography was used to confirm the correct placement of the needle. The mean (sd) initial pressure in the epidural space was 0.1 (0.7) kPa. After the injection the mean maximum epidural pressure in the group injected slowly was 5.5 (2.1) kPa and in the group injected more quickly it was 6.0 (1.9) kPa. At the end of the period of measurement, the epidural pressure in the slow group was 0.8 (0.5) kPa and in the rapid group it was 0.7 (0.5) kPa. Waves synchronous with the arterial pulse wave were observed in 15 of the dogs before the epidural injection, and in all the dogs after the epidural injection.  相似文献   

Effect of local infusion of NSAID analgesics administered alone or in combination on the pain associated with band castration in calves          下载免费PDF全文

DR Paull  AH Small  C Lee  L Labeur  IG Colditz 《Australian veterinary journal》2015,93(8):271-277

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Agronomic factors affecting the yield and quality of forage maize in Ireland: effect of sowing date and plastic film treatment     

G. P. Keane 《Grass and Forage Science》2002,57(1):3-10

The objectives of these studies were to examine the effects of sowing date and plastic film on the yield and quality of forage maize ( Zea mays L.) in Ireland, a marginal maize-growing area. In 1989–95, comparisons were made of maize sown through clear plastic film (PP treatment), and maize sown in the conventional manner without plastic (NP treatment), in terms of dry-matter (DM) yield and quality (cob, grain and starch contents). The PP treatment significantly increased DM yields in five years, with a mean yield increase of 3·10 t ha⁻¹. Whole-plant DM content increased (significant in four years) by a mean of 0·15; cob content increased (significant in five years) by a mean of 0·32; grain content increased (significant in all of the three years examined) by 0·75; and starch content increased from 236 to 318 g kg⁻¹ DM ( P  < 0·01) in 1995 where the plastic film treatment was used. Organic matter digestibility values were similar for both treatments in 1995. Sowing date in the April-May period had no consistent effect on DM yields, but early sowings did increase cob (significant, except in 1994), grain (significant in one (1995) of the two years tested) and starch ( P  < 0·05) contents (only tested in 1995). Sowing on 11 April 1995 through perforated plastic gave lower yields than the NP treatment sown on the same date, due to severe frost damage in early May.  相似文献   

The speciation of some tributyltin compounds using Mössbauer spectroscopy in different estuarine sediments     

Leopold May  Leah Berhane  Menna Berhane  Charles Counsil  Matthew Keane  Benjamin B. Reed  George Eng 《Water, air, and soil pollution》1994,75(3-4):293-306

The speciation of several tributyltin (TBT) compounds used in marine antifouling paints was studied by tin Mössbauer spectroscopy in both spiked anoxic and oxic estuarine sediments. These compounds included TBT acetate, chloride, fluoride, and oxide. To assist in the determination of the products, possible speciation products were also examined: TBT carbonate, sulfate, and sulfide. The study indicated that TBTF remains in its polymeric form after interaction with both types of sediments. TBT sulfate is unaltered in the spiked sediments. The data reported in this paper support the hypothesis that the speciation of the other TBT compounds examined in spiked sediments depends upon the nature of the sediment.  相似文献   

Spatial scaling of wildland fuels for six forest and rangeland ecosystems of the northern Rocky Mountains, USA   总被引：1，自引：1，他引：0  

Robert E. Keane  Kathy Gray  Valentina Bacciu  Signe Leirfallom 《Landscape Ecology》2012,27(8):1213-1234

Wildland fuels are important to fire managers because they can be manipulated to achieve management goals, such as restoring ecosystems, decreasing fire intensity, minimizing plant mortality, and reducing erosion. However, it is difficult to accurately measure, describe, and map wildland fuels because of the great variability of wildland fuelbed properties over space and time. Few have quantified the scale of this variability across space to understand its effect on fire spread, burning intensity, and ecological effects. This study investigated the spatial variability of loading (biomass) across major surface and canopy fuel components in low elevation northern Rocky Mountain forest and rangeland ecosystems to determine the inherent scale of surface fuel and canopy fuel distributions. Biomass loadings (kg?m^?2) were measured for seven surface fuel components??four downed dead woody fuel size classes (0?C6?mm, 6?C25?mm, 25?C75?mm, and 75?+?mm), duff plus litter, shrub, and herb??using a spatially nested plot sampling design within a 1?km² square sampling grid installed at six sites in the northern US Rocky Mountains. Bulk density, biomass, and cover of the forest canopy were also measured for each plot in the grid. Surface fuel loadings were estimated using a combination of photoload and destructive collection methods at many distances within the grid. We quantified spatial variability of fuel component loading using spatial variograms, and found that each fuel component had its own inherent scale with fine fuels varying at scales of 1?C5?m, coarse fuels at 10?C150?m, and canopy fuels from 100 to 500?m. Using regression analyses, we computed a scaling factor of 4.6?m for fuel particle diameter (4.6?m increase in scale with each cm increase in particle diameter). Findings from this study can be used to design fuel sampling projects, classify fuelbeds, and map fuel characteristics, such as loading, to account for the inherent scale of fuel distributions to get more accurate fuel loading estimations.  相似文献   

National fuel-treatment budgeting in US federal agencies: Capturing opportunities for transparent decision-making     

Keith M. Reynolds  Paul F. Hessburg  Robert E. Keane  James P. Menakis 《Forest Ecology and Management》2009,258(11):2373-2381

The Ecosystem Management Decision Support (EMDS) system has been used by the US Department of Agriculture, Forest Service and Bureaus of the Department of the Interior since 2006 to evaluate wildfire potential across all administrative units in the continental US, and to establish priorities for allocating fuel-treatment budgets. This article discusses an EMDS fuels-treatment decision-support application, agency experiences with the application, and the extent to which it addressed concerns in Congress, and those of the General Accountability Office. EMDS aids the budget allocation process by providing a rational, transparent, and reproducible process that can be clearly communicated to Congressional staff and oversight personnel. However, practical application of this decision-support process was not without challenges, which included missing or suboptimal data, clearly articulated fuels management objectives, and improved understanding (via re-assessing decision logic from prior years) of trade-offs in decision-making.  相似文献   

Climate change effects on historical range and variability of two large landscapes in western Montana,USA     

Robert E. Keane  Lisa M. HolsingerRussell A. Parsons  Kathy Gray 《Forest Ecology and Management》2008

Quantifying the historical range and variability of landscape composition and structure using simulation modeling is becoming an important means of assessing current landscape condition and prioritizing landscapes for ecosystem restoration. However, most simulated time series are generated using static climate conditions which fail to account for the predicted major changes in future climate. This paper presents a simulation study that generates reference landscape compositions for all combinations of three climate scenarios (warm-wet, hot-dry, and current) and three fire regime scenarios (half historical, historical, and double historical fire frequencies) to determine if future climate change has an effect on landscape dynamics. We applied the spatially explicit, state-and-transition, landscape fire succession model LANDSUM to two large landscapes in west-central Montana, USA. LANDSUM was parameterized and initialized using spatial data generated from the LANDFIRE prototype project. Biophysical settings, critical spatial inputs to LANDSUM, were empirically modeled across the landscape using environmental gradients created from historical and modeled future climate daily weather data summaries. Successional pathways and disturbance probabilities were assigned to these biophysical settings based on existing field data and extensive literature reviews. To assess the impact of changes in climate and fire regime, we compared simulated area burned and landscape composition over time among the different simulation scenario combinations using response variables of Sorenson's index (a global measure of similarity) and area occupied by the dominant vegetation class (simple indicator of change in landscape composition). Results show that simulated time series using future predicted climate scenarios are significantly different from the simulated historical time series and any changes in the fire regime tend to create more dissimilar and more variable simulated time series. Our study results indicate that historical time series should be used in conjunction with simulated future time series as references for managing landscapes.  相似文献