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1.
Harrus S Klement E Aroch I Stein T Bark H Lavy E Mazaki-Tovi M Baneth G 《The Veterinary record》2002,151(3):82-85
Forty-six cats with clinical haemobartonellosis were studied; 75 per cent of the cats of known age were two-and-a-half years old or younger, 50 per cent were intact males and 19.5 per cent were castrated males. The predominant signs of the disease were tachypnoea, lethargy, depression, anorexia, infestation with fleas, pale mucous membranes, icterus, emaciation, dehydration, splenomegaly, anaemia, leucocytosis, increased activities of alanine aminotransferase and aspartate aminotransferase, and azotaemia. Thirty-eight per cent of the cats that were tested for feline leukaemia virus (FeLV) antigen were positive, and 22 per cent of those tested for feline immunodeficiency virus (FIV) antibodies were positive. The prevalence of both FeLV and FIV was much higher than in the general Israeli cat population. The cats infected with both Haemobartonella felis and FeLV had a significantly lower body temperature, were more anaemic and the mean cell volume of their erythrocytes was greater than in the cats with haemobartonellosis alone. 相似文献
2.
Louis A. Helfrich Raymond Bark Charles R. Liston D. L. Weigmann Brent Mefford 《Journal of the World Aquaculture Society》2004,35(2):268-273
Immediate and delayed (96 h) mortality, descaling, and injury rates of striped bass Morone sax-atilis and rainbow trout Oncorhynchus mykiss that were inserted into the entrance (suction side) of a Hidrostal pump were compared to those of control fish that were inserted at the exit (pressure side). Comparisons were made in 158-paired trials of striped bass and 86 trials with rainbow trout. The Hidrostal pump had no significant effect on immediate or delayed (96 h) mortality. Immediate mortality for striped bass and rainbow trout averaged 0.1 and 0%, respectively, and delayed mortality averaged 2.9 and 0.1%, respectively. Mean scale loss after passage for striped bass and rainbow trout was low (0.2 and 1.0%, respectively). Frequency of injury to the head, eyes, skin, and tins of pumped striped bass averaged 1.9, 2.8, 1.9, and 18.7%, respectively, and those of rainbow trout averaged 2.3, 0, 2.4, and 3.1%. No significant relationships were detected between fish mortality and pump speed, injected fish density, and debris load. Results suggest that large Hidrostal pumps have the capacity to transport live striped bass and rainbow trout at high density (1-6 fish/L) with little mortality and body injury. 相似文献
3.
Is ecosystem service research used by decision-makers? A case study of the Murray-Darling Basin,Australia 总被引：1，自引：0，他引：1
This paper investigates the accessibility and usefulness of the Ecosystem Services (ES) framework to policy analysts. Using a mixed methods approach of document analysis and semi-structured interviews we examine how an ES assessment of the benefits of restoring water to the Murray-Darling Basin (MDB) in Australia has been used by government agencies in policy and planning. The ES assessment links changes in water management under the Basin Plan with modelled changes in water quality, river flows and inundation patterns and in turn to modelled freshwater and estuarine ecosystem response. These ecological responses were expressed in terms of incremental ES benefits which were valued monetarily using a variety of valuation techniques. To investigate how these pieces of information were used in the policy debate around the re-allocation of water in the MDB, semi-structured interviews were conducted with 20 Australian, State, and local government officials as well as academics and consultants. The interviews were designed to uncover the complex information dissemination process through networks within and among agencies. The results are mixed as to whether the assessment served to influence public policy. The report has been utilized and cited by Australian federal agencies, the downstream State of South Australia and conservation-based NGOs in their position statements and as such has been used as evidence in support of re-allocation of water in the MDB. A number of interview participants commented that the ES assessment raised awareness and this may lead to broader usage of the information and framework in the implementation phase of MDB water reform. 相似文献
4.
A 2 1/2-month-old, female German Shepherd Dog was examined because of incontinence since birth. Multiple urinary anomalies which included left renal agenesis, right hydronephrosis and hydroureter and urinary bladder dysfunction were found by excretory urography. These abnormalities were confirmed at necropsy. In addition, vesicovaginal continuity with apparent absence of the urethra was also found 相似文献
5.
The aim of this study was to compare three different enzyme-linked immunosorbant assays (recombinant major antigenic protein 2 (rMAP2)-ELISA, the Immunocomb (Biogal, Israel) and the Snap 3Dx assay (IDEXX Laboratories Inc., USA)) with the indirect immunofluorescent antibody test in detecting anti-Ehrlichia canis immunoglobulin-G (IgG) antibodies. Samples tested were collected from dogs suspected to be naturally infected with E. canis and from experimentally infected dogs.When qualitative results (positive/negative) were compared, there was an overall agreement of 81% (54/67) between the indirect immunofluorescence antibody (IFA) test and the rMAP2-ELISA. An overall agreement of 94% (63/67) was found between the IFA test and the Immunocomb, and an overall agreement of 91% (61/67) was found between the IFA test and the Snap 3Dx assay. In 50 of 67 (74.6%) samples tested, complete agreement in the qualitative results was found in all four tests. Sixteen of 17 samples with disagreement in the qualitative results were found to have IFA titers of 1:320 or less. The sensitivities and specificities of the tests were found to be 0.71 and 0.85 for the rMAP2-ELISA, 0.86 and 0.98 for the Immunocomb, and 0.71 and 1.00 for the Snap 3Dx assay.The tests performed in this study were found to be highly specific in detecting E. canis antibodies. Their sensitivity was found to be low with sera having IFA titers of < or =1:320, while high with sera having titers greater than 1:320. Repeating the serological tests 1-2 weeks after the first antibody assay may overcome the sensitivity problem with titers of < or =1:320. 相似文献
6.
Rosalind H. Bark 《Irrigation and Drainage Systems》2009,23(2-3):79-96
The 2004 Arizona Water Settlements Act (AWSA 2004) when implemented will allocate to two Native American tribes, the Gila River Indian Community (GRIC) and the Tohono O’odham Nation (TON) almost ten percent of Arizona’s total developed water supply, which is 7.04 million acre-feet a year. The successful passage of AWSA, given the scale of the water rights settlement and competing uses for finite water supplies, is the topic of this paper. Key motivations for the settlement are that: (1) the 653,500 acre-feet a year allocation is around a third of the GRIC’s Gila River Adjudication 2001 claim; (2) the GRIC signed a number of water leases and exchanges providing water to municipalities and has not ruled out signing more; and (3) AWSA resolved more than tribal water claims; it also settled thorny issues of Central Arizona Project (CAP) debt repayment (for $2 billion in construction costs) and division of water allocation between federal (Indian) and state (non-Indian) uses including the reallocation of high priority uncontracted CAP water to cities. 相似文献
7.
The Objective Structured Clinical Examination (OSCE) has been used extensively to evaluate clinical skill of medical students. This article reports on its adaptation to veterinary medicine. 相似文献
8.
Harrus S Waner T Friedmann-Morvinski D Fishman Z Bark H Harmelin A 《Veterinary immunology and immunopathology》2003,96(3-4):239-243
In order to evaluate whether infection with E. canis alters the expression of major histocompatibility complex (MHC) class I and/or MHC class II receptors, and by doing so alters the immune response to the organism, flow cytometry was performed on DH82 cells infected with Ehrlichia canis (90% infection) and on uninfected DH82 cells of the same passage, using anti-canine MHC class I and II antibodies. MHC class II expression was evident in 47.6 and 46.2% (mean 46.9%) of uninfected DH82 cells using two different anti-MHC class II antibodies, while no MHC class II expression was evident in DH82 cells infected with E. canis. The present results indicate that infection of DH82 macrophages with E. canis down-regulates their MHC class II receptors. These results suggest a possible mechanism by which E. canis evades the immune system. 相似文献
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A young, crossbred dog with a 13-month history of progressively worsening, recurrent episodes of vomiting, anorexia, depression and dehydration was diagnosed as having a functional hypomotility disorder of the small Intestines. During hospitalisation, the dog's condition Improved only when total parenteral nutrition was administered. When fed orally, the dog developed severe gastric dilatation. Intestinal motility was minimal, but was Induced by neostigmine. Post mortem findings Included dilatation of the duodenum and progressive narrowing of the small bowel up to the lleum. Histopathology revealed various grades of neuronal degeneration and necrosis of the myenteric plexuses throughout the small Intestine. Microscopic changes resembled those reported In dysautonomia, but were limited to small intestinal myenteric plexuses. A locallsed congenital neuronal defect causing a lack of parasympathetic tone Is suspected. 相似文献