A systemic fungal disease in Atlantic salmon parr, Salmo salar L., caused by a species of Phialophora     

A. E. ELLIS  I. F. WADDELL  D. W. MINTER 《Journal of fish diseases》1983,6(6):511-523

Abstract. A fungal infection of Atlantic salmon parr (0 +) occurring at low water temperatures, principally in January, is reported from fish farm hatcheries in western Scotland. Clinical signs and histopathology of the disease are described, illustrated, discussed and compared with those of certain other fungal diseases of salmonids. The fungus, provisionally placed in the hyphomycete genus Phialophora is described and illustrated from pure culture, with a discussion of its taxonomic position.  相似文献   

Bizzare forms of erythrocytes in a specimen of plaice, Pleuronectes platessa L.     

A. E. ELLIS 《Journal of fish diseases》1984,7(5):411-414

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The role of Aeromonas salmonicida extracellular products in the pathology of furunculosis   总被引：5，自引：0，他引：5  

A. E. ELLIS  T. S. HASTINGS  A. L. S. MUNRO 《Journal of fish diseases》1981,4(1):41-51

Abstract. The extracellular products (ECP) of Aeromonas salmonicida , prepared by the cellophane overlay method, are lethal to rainbow trout when administered parenterally. Sublethal doses when injected i.p. or i.m. are shown to reproduce all the lesions that have been described in the literature as being associated with furunculosis. In addition, meningitis may be an important feature of furunculosi s and is reproduced by injection of ECP. A serum factor, probably an α-globulin, present in normal serum of rainbow trout, is capable of neutralizing the toxic effects of ECP. The pathology is discussed with reference to the proteolytic and leucocidal properties of the ECP and its effects upon the eosinophilic granular cells which are caused to disperse and degranulate with the possible release of histamine.  相似文献   

Serological response of vaccinated sheep after challenge with Corynebacterium pseudotuberculosis     

SS SUTHERLAND  TM ELLIS  MJ PATON  AR MERCY 《Australian veterinary journal》1992,69(7):168-169

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Use of magnetic particles to improve the diagnosis of sheep-associated malignant catarrhal fever by polymerase chain reaction     

TM ELLIS  AM MASTERS 《Australian veterinary journal》1997,75(7):520-521

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Weight gains of lambs treated with a soluble glass bullet containing cobalt, selenium and copper     

N J S ELLIS  M. SHALLOW  G J JUDSON 《Australian veterinary journal》1987,64(3):93-94

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AN INVESTIGATION OF WEATHERING IN SOME ARCTIC-ALPINE SOILS ON THE NORTHEAST FLANK OF OKSSKOLTEN,NORTH NORWAY1     

S. ELLIS 《European Journal of Soil Science》1980,31(2):371-385

Morphological, particle size and mineralogical analyses of three soils indicate that the degree of weathering during pedogenesis has been of a low order. Textural characteristics and mineral content variations arc attributed largely to inheritance from the till parent material, rather than to pedological processes. These observations suggest that frost action as a soil weathering process in this particular environment is minimal. Hydration and dissolution by chelation are discussed as possible alternative mechanisms, but their operation is probably impaired by restricted water availability resulting from the extensive duration of seasonally frozen ground conditions.  相似文献   

Effects of feeding lupin seed naturally infected with Phomopsis leptostromiformis to sheep and pigs     

J. G. ALLEN  M. J. DOLLING  T. M. ELLIS  H. G. MASTERS  H. G. PAYNE  G. SMITH  P. McR. WOOD 《Australian veterinary journal》1984,61(6):178-180

Lupin seed, 10% of which was naturally infected with Phomopsis leptostromiformis was obtained from 2 different sources and stored either conventionally, or in a warm and humid environment, for 45 weeks. Only very low levels of toxicity were apparent during the storage period and in the warm, humid environment the level of infection of P. leptostromiformis was gradually reduced and eventually eliminated. The 2 batches of infected seed, and non-infected lupin seed, were fed to sheep as sole rations for 40 weeks, or as part of feedlot rations for 10 weeks, and to baconer pigs as part of grower and finisher rations for 16 weeks. In the 40-week feeding trial mild lupinosis developed in sheep fed from one batch of infected seed, but there was no evidence of lupinosis in sheep fed the feedlot rations, or pigs fed the grower and finisher rations. It is suggested that lupin seed with levels of Phomopsis-infection of up to 10% could be safely fed to sheep and pigs under commercial conditions.  相似文献   

The in vitro resistance of canine staphylococci to trimethoprim and sulphamethoxazole alone and in combination     

M. HINTON  M. MARSTON  JULIA CRISFIELD 《Journal of veterinary pharmacology and therapeutics》1981,4(1):33-38

The in vitro resistance of 40 strains of Staphylococcus aureus isolated from dogs to trimethoprim, sulphamethoxazole and co-trimoxazole (SXT) was assessed using the disc diffusion technique on Diagnostic Sensitivity Test Agar (DSTA), DSTA with 5% lysed horse blood (DSTA + B), IsoSensitest Agar (ISTA) and Wellcotest Sensitivity Test Agar (WSTA).
When sensitivity was based on a zone width of ≥4 mm all 40 strains were sensitive to SXT on DSTA + B and ISTA, 39 were sensitive on WSTA while only 31 (77.5%) were sensitive on DSTA.
A comparison of the results obtained for each strain for trimethoprim and sulphamethoxazole with those obtained with the Oxford strain of S. aureus and using a scheme for interpretation recommended by Garrod & O'Grady (1971) indicated that the proportion of strains classed as sensitive for therapeutic purposes was 5%, 55%, 47.5% and 15% respectively on DSTA, DSTA + B, ISTA and WSTA.  相似文献   

South-west England grassland survey 1983. 2. Trends in cropping pattern, reseeding and sward composition 1970–83     

S. PEEL  ELIZABETH A. MATKIN  JULIA A. ELLIS  A. HOPKINS 《Grass and Forage Science》1985,40(4):467-472

Seventy-eight farms in south-west England, originally visited in 1970–72, were revisited in 1983 in order to identify changes in land use and re-seeding over the c. 12-year period; changes in sward composition were assessed on fifty-nine of these farms. The results were also compared with Ministry of Agriculture, Fisheries and Food (MAFF) Census results and MAFF Seeds Branch data.
The proportion of tillage had declined from 29 to 24%. This was in agreement with census results for the south-western counties, but contrasted with those for England and Wales as a whole, which showed an increase from 38.8 to 41.7% tillage. It is indicative of grass becoming more predominant in south-west England as east England has become more dominated by tillage cropping.
There had also been a decline in the amount of short-term grassland. In 1970–72 17% of the grassland was intended to last from 1 to 4 years; in 1983 the proportion was only 10%. That these intentions were being carried out was confirmed by the fact that in 1983 there was more grassland in each of the age categories 5·8,9·20 and over 20 years. The trend towards older grassland confirms that shown by regional and national census data, and the trend away from short-term swards is in line with deliveries of herbage seed which indicate reduced use of Italian ryegrass (Lolium multiflorum).
Botanical composition had changed appreciably, with the proportion of Lolium perenne having increased in swards of all ages, e.g. from 35 to 51% in swards 5–8 years old and from 17 to 31% in those aged over 20 years. Other sown species, predominantly Dactylis glomerata and Phleum pratense , had declined markedly in swards over 4 years old. The proportions of Agrostis spp., Festuca spp. and Poa trivialis had fallen, but Holcus lanatus had increased slightly. There had been a marked reduction in infestations of perennial broad-leaved weeds, particularly Ranunculus , but also Rumex and Cirsium spp.  相似文献