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81.
A. V. Ivanov N. A. Locmanova A. V. Savchenko 《Moscow University Soil Science Bulletin》2014,69(1):6-10
This paper reveals the features of the soil cover of the territory of the Vetluga-Unzhensk interfluvial area, which is adjacent to the northern part of Uvaly, where contrasting combinations of alpha-humic and organo-accumulative soils are widespread. This is due to abruption of the clayey rocks of the Triassic age on the background of fluvioglacial sand sediments of the Dnieper glaciation, which is due to the complicated history of the formation of the relief of the characterized territory. 相似文献
82.
DANIEL J. BROCKMAN BVSc Diplomate ACVS & ECVS KATE E. BORER BVSc Cert VA Diplomate ECVA STEPHEN J. BAINES MA Vet MB PhD Diplomate ECVS DEZ HUGHES BVSc Diplomate ACVECC VIRGINIA LUIS FUENTES MA Vet MB PhD Diplomate ACVIM 《Veterinary surgery : VS》2009,38(5):631-635
Objective— To report successful surgical treatment of double chambered right ventricle (DCRV) in a cat.
Study Design— Clinical report.
Animals— Cat with DCRV.
Methods— DCRV was diagnosed in a 5-month-old male Maine Coon cat using echocardiography and angiocardiography. At 2 years, despite medical therapy, chylothorax developed. A section of the right ventricular free wall that spanned the fibromuscular obstruction was excised under total venous inflow occlusion (TVIO) using the incised pericardial patch technique.
Results— Short-term recovery was complicated by return of chylothorax but this resolved after thoracocentesis and diuretic therapy. Three years after surgery, the cat is free of clinical signs and no longer on any medical therapy.
Conclusions— Partial right ventriculectomy can be performed under TVIO through an incised pericardial patch.
Clinical Relevance— DCRV in cat can be successfully treated by partial right ventriculectomy performed under TVIO through an incised pericardial patch. 相似文献
Study Design— Clinical report.
Animals— Cat with DCRV.
Methods— DCRV was diagnosed in a 5-month-old male Maine Coon cat using echocardiography and angiocardiography. At 2 years, despite medical therapy, chylothorax developed. A section of the right ventricular free wall that spanned the fibromuscular obstruction was excised under total venous inflow occlusion (TVIO) using the incised pericardial patch technique.
Results— Short-term recovery was complicated by return of chylothorax but this resolved after thoracocentesis and diuretic therapy. Three years after surgery, the cat is free of clinical signs and no longer on any medical therapy.
Conclusions— Partial right ventriculectomy can be performed under TVIO through an incised pericardial patch.
Clinical Relevance— DCRV in cat can be successfully treated by partial right ventriculectomy performed under TVIO through an incised pericardial patch. 相似文献
83.
A. A. Ivanov N. V. Yudina E. V. Mal’tseva E. Ya. Matis L. I. Svarovskaya 《Eurasian Soil Science》2010,43(2):210-215
The influence of humin preparations obtained from low-moor peat by the mechanochemical method on the changes in the microflora
number and hydrocarbon composition in oil-polluted soils was studied. The intense growth of the microorganisms in number especially
in the oil-polluted soil was observed upon the application of humin acids (at a concentration of 0.005 wt %) extracted from
mechanically processed peat. In this case, the content of the extracted bitumoids decreased down to 40 wt %. The soil microflora
stimulated by the humin preparations was shown to have highly destructive oil-oxidizing activity reflected in the indices
of the hydrocarbon biodegradation. The mechanochemical activation of peat allows raising the efficiency of extracting the
humic acids and can be a reason for increasing the availability of their individual components and parts of molecules, including
micro- and macroelements that are used by microbial cells as sources of nutrition and energy. 相似文献
84.
A generalized chronosequence of changes in the morphometric parameters of chernozems in the past 5100 years is analyzed. It
is shown that the development of chernozems in the center of the East European Plain is characterized by both long-term (interglacial,
encompassing the entire Holocene) and short-term (within separate climatic periods of the Holocene) trends. The long-term
trend of the evolution of ordinary chernozems developed from the loess-like calcareous loam consists of a continuous increase
in the thickness of the soil humus profile and an oscillating increase in the depth of the carbonate accumulations. The Late-Holocene
short-term trends of the natural evolution of chernozems are characterized by the high spatial heterogeneity related to the
patterns of climatic fluctuations and to the lithological composition of parent materials. In that period, the thickness of
genetic horizons in the forest-steppe chernozems was increasing faster than that in the steppe chernozems. 相似文献
85.
The total mercury content has been determined in gray forest soils, chernozems, chestnut soils, and in different parent materials
in the Transbaikal region. The mercury content is below the clarke value in the intrusive, effusive, and alluvial soil-forming
rocks (0.004–0.024 mg/kg). In the humus horizons of the soils, it reaches 0.011–0.026 mg/kg, which is higher than the clarke
value for the pedosphere. The mean background content of mercury in the soils of the Transbaikal region is 0.018 mg/kg. No
significant positive correlation between the mercury content and the humus content of the soils has been revealed. 相似文献
86.
D Jordan JJ-C Chin VA Fahy MD Barton MG Smith DJ Trott 《Australian veterinary journal》2009,87(6):222-229
Objective To describe how various antimicrobials are used in commercial pig herds in Australia and for what disease conditions.
Procedure Managers of large pig herds (> 200 sows) across Australia and their veterinarians participated in an internet-based survey in 2006. Questions were asked about herd management, the occurrence of bacterial diseases and the type and frequency of antimicrobial use. An antimicrobial usage index for each herd was derived as a summary of the risk of selection for antimicrobial resistance. Relationships between responses were explored with univariate and multivariate analysis.
Results Responses were received for 197 herds estimated to represent at least 51% of all large pig herds in Australia. Most piggeries relied on drugs of low importance in human medicine (e.g. tetracyclines, penicillins and sulfonamides). For the two drugs of high importance in human medicine that can be legally prescribed to pigs in Australia, ceftiofur use was reported in 25% of herds and virginiamycin in none. Infections attributed to Lawsonia , Mycoplasma and Escherichia coli motivated the most use of antimicrobials. No useful association was found between management factors and the antimicrobial use index.
Conclusion Most antimicrobial use in the Australian pig industry is based on drugs of low importance to public health. Enhanced control of E. coli infections without reliance on antimicrobials would further reduce the risk of selecting for antimicrobial resistance relevant to public health. The amount of variation in the usage index between herds suggests that antimicrobial use should be constantly reviewed on a herd by herd basis. 相似文献
Procedure Managers of large pig herds (> 200 sows) across Australia and their veterinarians participated in an internet-based survey in 2006. Questions were asked about herd management, the occurrence of bacterial diseases and the type and frequency of antimicrobial use. An antimicrobial usage index for each herd was derived as a summary of the risk of selection for antimicrobial resistance. Relationships between responses were explored with univariate and multivariate analysis.
Results Responses were received for 197 herds estimated to represent at least 51% of all large pig herds in Australia. Most piggeries relied on drugs of low importance in human medicine (e.g. tetracyclines, penicillins and sulfonamides). For the two drugs of high importance in human medicine that can be legally prescribed to pigs in Australia, ceftiofur use was reported in 25% of herds and virginiamycin in none. Infections attributed to Lawsonia , Mycoplasma and Escherichia coli motivated the most use of antimicrobials. No useful association was found between management factors and the antimicrobial use index.
Conclusion Most antimicrobial use in the Australian pig industry is based on drugs of low importance to public health. Enhanced control of E. coli infections without reliance on antimicrobials would further reduce the risk of selecting for antimicrobial resistance relevant to public health. The amount of variation in the usage index between herds suggests that antimicrobial use should be constantly reviewed on a herd by herd basis. 相似文献
87.
Lucy VA Metcalfe Peter J O’Brien Stratos Papakonstantinou Stephen D Cahalan Hester McAllister Vivienne E Duggan 《Irish veterinary journal》2013,66(1):22
A 15 year-old grey Thoroughbred gelding presented for investigation of chronic weight loss and recent onset of respiratory difficulty. Clinical examination confirmed tachypnoea with increased respiratory effort. Thoracic ultrasound examination detected pleural effusion. The dyspnoea was related to the large volume of pleural effusion and, following post-mortem examination, to the presence of a large mediastinal mass. Multiple pigmented masses, likely melanomas, were detected peri-anally. Thoracic radiography, cytological examination of the pleural fluid and a fine needle aspirate of a thoracic mass led to a presumptive diagnosis of malignant melanoma and this was confirmed at post mortem examination. Further metastatic spread to the central nervous system and right guttural pouch was also identified. In conclusion this case manifests the potential malignant behaviour of equine melanomas, and a review of proposed therapies for melanoma treatment highlights the therapeutic options and current areas of research. 相似文献
88.
The characteristics of the formation of a ground beetle community in winter rye, spring wheat, spring rape, and oat agrocenoses under conditions of the forest-steppe in the Ob River Region have been studied. It has been established that the use of the chemical agents specified by the technology of growing these crops does not substantially change the carabid community inhibiting the agrocenoses. 相似文献
89.
90.