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41.
Transected cranial cruciate ligaments in nine Holstein heifers were replaced with an autograft harvested from fascia on the medial surface of the gluteobiceps muscle and a connected segment of the lateral patellar ligament. There was minimal lameness at month 1, and all animals were sound by month 2. There was no evidence of degenerative joint disease in any stifles examined at necropsy on days 90, 120, or 365. Augmented healing of the severed cranial cruciate ligaments occurred in several animals. The mean failure strength of the cranial cruciate ligament replacements was 29.7% of the failure strength of the contralateral normal cranial cruciate ligament in four heifers. The technique was successful in eight of 13 bulls and cows with ruptured cranial cruciate ligaments. Animals treated successfully had significantly lower body weights than those with unsuccessful outcomes. 相似文献
42.
Field experiments were conducted at Indian Agricultural Research Institute, New Delhi, during 2001–2002 and 2002–2003, to study the effect of inorganic, organic and Azotobacter combined sources of N on cotton (Gossypium hirsutum L.) and their residual effect on succeeding wheat (Triticum aestivum L.) crop. The results indicated considerable increase in yield attributes and mean seed cotton yield (2.33 Mg ha?1) with the combined application of 30 kg N and farmyard manure (FYM) at 12 Mg ha?1 along with Azotobacter (M4). The treatment in cotton that included FYM, especially when fertilizer N was also applied could either improve or maintain the soil fertility status in terms of available N, P and K. Distinct increase in yield attributes and grain yield of wheat was observed with the residual effect of integrated application of 30 kg N ha?1 + FYM at 12 Mg ha?1 + Azotobacter. Direct application of 120 kg N ha?1 resulted 67.4 and 17.7 % increase in mean grain yield of wheat over no N and 60 kg N ha?1, respectively. Integrated application of organic and inorganic fertilizer is therefore, recommended for higher productivity and sustainability of the cotton–wheat system. 相似文献
43.
K.R.E. Squire MVSc MSc PhD J.F. Fessler DVM MS H.D. Cantwell DVM MS W.R. Widmer DVM MS 《Veterinary radiology & ultrasound》1992,33(2):109-113
Bilateral subchondral bone cysts of the femoral condyles were diagnosed by conventional radiography in a 14 month old Appaloosa colt. Surgical debridement was performed, and over the next 18 months the appearance of the cysts was evaluated with radiography and bone scintigraphy. On the preoperative scintigrams, increased radiopharmaceutical uptake was associated with the cysts. Despite continued radiographic enlargement, the cysts did not demonstrate increased radiopharmaceutical uptake post-operatively. 相似文献
44.
A Gis-derived integrated moisture index to predict forest composition and productivity of Ohio forests (U.S.A.) 总被引:9,自引:0,他引:9
Iverson Louis R. Dale Martin E. Scott Charles T. Prasad Anantha 《Landscape Ecology》1997,12(5):331-348
A geographic information system (GIS) approach was used in conjunction with forest-plot data to develop an integrated moisture index (IMI), which was then used to predict forest productivity (site index) and species composition for forests in Ohio. In this region, typical of eastern hardwoods across the Midwest and southern Appalachians, topographic aspect and position (rather than elevation) change drastically at the fine scale and strongly influence many ecological functions. Elevational contours, soil series mapping units, and plot locations were digitized for the Vinton Furnace Experimental Forest in southeastern Ohio and gridded to 7.5-m cells for GIS modeling. Several landscape features (a slope-aspect shading index, cumulative flow of water downslope, curvature of the landscape, and water-holding capacity of the soil) were used to create the IMI, which was then statistically analyzed with site-index values and composition data for plots. On the basis of IMI values for forest land harvested in the past 30 years, we estimated oak site index and the percentage composition of two major species groups in the region: oak (Quercus spp.), and yellow poplar (Liriodendron tulipifera) plus black cherry (Prunus serotina). The derived statistical relationships were then applied in the GIS to create maps of site index and composition, and verified with independent data. The maps show the oaks will dominate on dry, ridge top positions (i.e., low site index), while the yellow poplar and black cherry will predominate on mesic sites. Digital elevation models with coarser resolution (1:24K, 1:100K, 1:250K) also were tested in the same manner. We had generally good success for 1:24K, moderate success for 1:100K, but no success for 1:250K data. This simple and portable approach has the advantage of using readily available GIS information which is time-invariant and requires no fieldwork. The IMI can be used to better manage forest resources where moisture is limiting and to predict how the resource will change under various forms of ecosystem management. 相似文献
45.
Melissa C. Paoloni DVM Dominique G. Penninck DVM DVSc Antony S. Moore BVSc MVSc 《Veterinary radiology & ultrasound》2002,43(6):562-567
In a retrospective study of 21 dogs with intestinal adenocarcinoma, the signalment, clinical presentation, laboratory findings, ultrasonographic features, treatment, and outcome were reviewed. Anorexia (n = 16), vomiting (n = 15), diarrhea (n = 10), and weight loss (n = 9) were the most common clinical signs reported. Ultrasonographic features that were evaluated included location, length, wall thickness, echogenicity, regional motility, layering, regional lymphadenopathy, and fluid accumulation proximal to the lesion site. All lesions were transmural and associated with complete loss of wall layering. Maximum wall thickening at the lesion site ranged from 7 to 17 mm (median 12 mm, mean 11.9 mm). Most of the dogs had a lesion measuring from 23 to 63 mm in length, (median 40 mm, mean 42 mm). Most intestinal lesions were poorly echogenic and had an irregular lumen. Fluid accumulation proximal to the lesion site was identified in 17 of 21 dogs, and in 13 of 17 dogs the fluid accumulation was considered moderate to severe. Regional lymphadenopathy and/or nodular mesentery/omentum were noted in 12 of 21 dogs. The tumor was located in small intestine for 15 dogs and in the colon for the remaining 6 dogs. Fifteen dogs were treated by surgical resection of the intestinal mass. Their median survival time was 233 days. Only gender appeared to influence survival. Female dogs lived a median of 28 days, whereas male dogs lived a median of 272 days. 相似文献
46.
R. L. WILLER DVM K. A. JOHNSON MVSc PhD FACVSc DiplomateACVs T. M. TURNER DVM D. L. PIERMATTEI DVM PhD DiplomateACVs 《Veterinary surgery : VS》1990,19(5):334-340
The efficacy of partial carpal arthrodesis was evaluated retrospectively in 39 dogs (45 carpi) with severe sprains of the middle carpal joints, the carpometacarpal joints, or both. The carpometacarpal joint was the most frequently injured joint. Jumping or falling from heights was the cause of injury in 49% of these animals. Of the 25 owners who responded to a mailed questionnaire (mean follow-up, 32 months), all stated their animal had improved or greatly improved after partial carpal arthrodesis and all were pleased or very pleased with the final surgical result. Hyperextension persisted in 11% of the cases and degenerative joint disease of the antebrachiocarpal joint was present in 15.5% of the cases. No dogs with partial carpal arthrodesis required panarthrodesis at a later date. 相似文献
47.
Singh K Kinjavdekar P Amarpal Aithal HP Gopinathan A Singh GR Pawde AM Pratap K 《Veterinary research communications》2007,31(2):133-142
Xylazine–ketamine combination was evaluated for its efficacy and safety after epidural administration in uraemic and healthy
goats. The combination (xylazine 0.025 mg/kg and ketamine 2.5 mg/kg) was administered to uraemic (n = 6) and healthy (n = 6) animals in the lumbosacral epidural space. The combination was evaluated in terms of clinical, physiological, haematological
and biochemical parameters. The onset of analgesia was faster in healthy animals than in uraemic animals. Xylazine and ketamine
produced complete analgesia of tail, perineum, inguinal and thigh regions in all animals of both groups. However, healthy
animals showed longer duration of complete analgesia than did uraemic animals. Greater ataxia was recorded in healthy animals
than in uraemic animals. The heart rate showed a significant decrease in both groups; however, respiratory rate and rectal
temperature did not show any significant changes. Haemoglobin, packed cell volume and total leukocyte count decreased non-significantly
in both groups. Total leukocyte count was significantly higher in uraemic animals. A significantly higher value of urea nitrogen
and creatinine was recorded in uraemic animals. The blood electrolytes (Na+, K+ and Cl−) and blood gases (P
o
2 and P
co
2) did not show any significant changes in both groups; however, base excess was significantly higher in uraemic animals. The
effects produced by the combination on different systems were transient and values normal as the effect of the drugs wore
off. The results suggest that the combination when used epidurally in uraemic goats produced effective and safe surgical analgesia. 相似文献
48.
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This paper reports the results of wheat plants exposed to SO2. The SO2-treated and control plant samples were periodically analyzed with respect to their carbohydrate content, caloric values, phytomass accumulations and net primary productivity. An initial increase, but later decrease in all these parameters was recorded in SO2-treated plants. These effects in wheat plants have been interpreted in terms of energy budget of plants under SO2-stress condition. 相似文献