Canine Diabetes Mellitus—A Report of Fourteen Cases     

JOAN B. DIXON  J. SANFORD 《The Journal of small animal practice》1961,2(1-4):9-17

Abstract— Fourteen cases of canine diabetes mellitus are described. Eleven were bitches and three were male dogs and the average age at diagnosis was seven years. The most constant symptoms were polydipsia with polyuria, persistent hyperglycaemia, glycosuria and ketonuria. Seven cases were treated by daily injections of a long-acting preparation of insulin supported by a low-carbohydrate diet. Treatment with tolbutamide was attempted without success in three cases.  相似文献   

A CONDITION RESEMBLING FACIAL ECZEMA IN SHEEP IN NEW SOUTH WALES     

C. H. R. DENT B.V.Sc.  JOAN C. ROFE B.V.Sc. 《Australian veterinary journal》1967,43(2):71-71

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SURVIVAL OF SEEDS OF WILD OATS (AVENA FATUA L, AND AVENA LUDOVICIANA DUR.) AND CHARLOCK (SINAPIS ARVENSIS L.) IN SOIL UNDER LEYS     

JOAN M. THURSTON 《Weed Research》1966,6(1):67-80

Summary. Survival of wild oat seeds (mainly Avena fatua ) under leys on clay soils was investigated in two field experiments. During the first year under ley the number of seeds decreased by 41 % and 86% respectively. Subsequent decreases were less, and after 5 years under ley there were still enough of the original seeds left to produce infestation of a cereal crop. These results suggest that a long ley is not an efficient way of eliminating wild oat seeds from soil, and that a 1-year ley may be almost as effective as one of 5 years.
When a ley was ploughed, the number of wild oats germinating decreased as the number of years under ley and the age of the seeds increased, but was scarcely affected by the weather. In contrast, charlock ( Sinapis arvensis ) germination did not decrease with increasing age of seeds up to 5 years, but was greatest in years with most rain during April and May.
Survivance de semences de Folle Avoine (Avena fatua L . et A . ludovieiana Dur.) et de Moutarde des champs (Sinapis arvensis L.) dans le sol sous prairie temporaire  相似文献   

THE EFFECT OF COMPETITION FROM CEREAL CROPS ON THE GERMINATION AND GROWTH OF AVENA FATUA L. IN A NATURALLY-INFESTED FIELD     

JOAN M. THURSTON 《Weed Research》1962,2(3):192-207

Summary. The effect of winter wheat, winter rye, winter barley, spring barley, and fallow cultivated as for a winter cereal, on germination and growth of wild oats ( A. fatua ) was investigated on a naturally-infested field. Treatments were continued for 2 years on the same plots and in the third year all plots were cropped with spring barley. Wild oats were not allowed to shed seeds.
A. fatua was controlled by a dense crop of an autumn-sown cereal. The crop genus was unimportant provided it grew well on the site; its effectiveness depended on its density when the wild oats germinated in spring. Winter wheat and winter rye were equally effective. Even in a light crop of barley, wild oats grew much less vigorously than on the fallow plots. Beyond a certain crop density dependent on soil fertility, further increase in crop did not decrease the size of wild oats. The heaviest crop did not completely suppress the wild oats.
The crop affected the wild oats mainly by decreasing growth of the seedlings, but under winter wheat and winter rye some wild oat seeds may have remained dormant, germinating in the spring barley in the third year, perhaps because the crops decreased the soil moisture content. Nitrogenous fertilizer increased the weight of both crops and wild oats. Barley was more severely affected by soil acidity than wild oats and on acid areas of barley plots the wild oats were larger than where the pH was higher. In wheat and rye which were scarcely affected by soil acidity the size of the wild oat plants was unaffected by soil pH.
L'effet du competition des céréales sur la germination et le développement d' Avena fatua dans un champ naturellement infesté .  相似文献   

'Detection times' and 'clearance times' for drugs in horses and other animals: a reappraisal     

T. TOBIN  JOAN COMBIE  THOMAS E. NUGENT 《Journal of veterinary pharmacology and therapeutics》1982,5(3):195-197

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IMAGING DIAGNOSIS—INTRA-ABDOMINAL NECROTIC LIPOMA     

TARA N. HAMMOND  JOAN REGAN 《Veterinary radiology & ultrasound》2008,49(4):365-367

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Lupoid Dermatosis in Five German Short-haired Pointers     

MARGREET W. VROOM †  MANDy J. THEAKER‡  JOAN R. REST§  STEPHEN D. WHITE¶ 《Veterinary dermatology》1995,6(2):93-98

Résumé— La dermatose lupoïde du Braque Allemand doit être considéré comme une génodermatose bien que le nombre de cas décrit soit faible. Cette maladie concerne de jeunes chiens. Aucune prédisposition sexuelle n'est notée. Pour l'instant, cette maladie n'a été observée que chez le Pointer. Le diagnostic repose sur l'examen clinique et l'examen histopathologique des biopsies cutanées. Le pronostic est généralement réservé, mais l'utilisation des acides gras et un traitement symptomatique peuvent être préconisés. [Vroom, M.W., Theaker, M.J., Rest, J.R., White, S.D. Lupoid dermatosis in five German short-haired pointers (Dermatose lupoïde chez cinq Braques Allemands). Resumen— La dermatosis lupoide del Pointer Alemán de pelo corto podria ser un genodermatosis, aunque el número de casos descritos es bajo. Esta enfermedad se presenta en perros jóvenes. No hay predisposición por sexo. Hasta el momento sólo se ha descrito como tal en el Pointer Alemán de pelo corto. El diagnóstico se realiza mediante examen clinico e histopatológico de biopsias cutáneas. El pronóstico es grave, pero se recomienda un tratamiento sintomático y con ácidos grasos. [Vroom, M.W., Theaker, M.J., Rest, J.R., White, S.D. Lupoid dermatosis in five German short-haired pointers (Dermatosis lupoide en cinco perros Pointer alemán de pelo corto). Abstract— Lupoid dermatosis of the German short-haired pointer may be a genodermatosis, although the number of cases reported is low. The disease occurs in young dogs. There is no sex predisposition. Until now the disease has only been consistently described in the German short-haired pointer. Diagnosis can be made by clinical examination together with histopathological examination of skin biopsies. The prognosis is usually poor, but fatty acid and symptomatic treatment should be attempted.  相似文献   

Occurrence of barley yellow dwarf viruses in some common grasses (Gramineae) in south west England     

D. A. KENDALL  S. GEORGE  & B. D. SMITH 《Plant pathology》1996,45(1):29-37

The incidence and distribution of aphid transmitted barley yellow dwarf (BYD) viruses (PAV-, RPV- and MAV-like isolates) are described in 14 species of common pasture and hedgerow grasses from five localities of south-west England during 1987 and 1988. Isolates were identified by indirect 'sandwich' ELISA using the monoclonal antibodies MAC91, MAC92 and MAFF2. More infection was detected in 1987 than in 1988 but this was mainly due to a sharp decline at one site. Intensity of infection was greater in Poa annua and Lolium perenne populations than in most other species. BYD was not detected in Arrhenatherum elatius Elymus repens Agrostis canina and A. stolonifera . All three isolates of BYD were widespread. MAV was associated more with localities further north and RPV more with those further south. PAV was common only at the southern-most site. This geographical distribution was reasonably consistent in both years. Given these trends, susceptible grass species fell broadly into three groups with respect to isolate frequency, those predominently infected by RPV and MAV (seven spp.), those equally infected by all isolates (two spp.) and a single species, Poa annua , infected mainly by PAV. Some implications of these findings for the epidemiology and control of BYD viruses are briefly considered.  相似文献   

DEVELOPMENT OF A MORPHOMETRIC MAGNETIC RESONANCE IMAGE PARAMETER SUITABLE FOR DISTINGUISHING BETWEEN NORMAL DOGS AND DOGS WITH CEREBELLAR ATROPHY     

RYAN A. THAMES  IAN D. ROBERTSON  THOMAS FLEGEL  DIANA HENKE  DENNIS P. O'BRIEN  JOAN R. COATES  NATASHA J. OLBY 《Veterinary radiology & ultrasound》2010,51(3):246-253

Neurodegenerative diseases affect the cerebellum of numerous dog breeds. Although subjective, magnetic resonance (MR) imaging has been used to detect cerebellar atrophy in these diseases, but there are few data available on the normal size range of the cerebellum relative to other brain regions. The purpose of this study was to determine whether the size of the cerebellum maintains a consistent ratio with other brain regions in different ages and breeds of normal dogs and to define a measurement that can be used to identify cerebellar atrophy on MR images. Images from 52 normal and 13 dogs with cerebellar degenerative diseases were obtained. Volume and mid‐sagittal cross‐sectional area of the forebrain, brainstem, and cerebellum were calculated for each normal dog and compared between different breeds and ages as absolute and relative values. The ratio of the cerebellum to total brain and of the brainstem to cerebellum mid‐sagittal cross‐sectional area was compared between normal and affected dogs and the sensitivity and specificity of these ratios at distinguishing normal from affected dogs was calculated. The percentage of the brain occupied by the cerebellum in diverse dog breeds between 1 and 5 years of age was not significantly different, and cerebellar size did not change with increasing age. Using a cut off of 89%, the ratio between the brainstem and cerebellum mid‐sagittal cross‐sectional area could be used successfully to differentiate affected from unaffected dogs with a sensitivity and specificity of 100%, making this ratio an effective tool for identifying cerebellar atrophy on MR images.  相似文献   

The development of recruitment fisheries oceanography in the United States     

ARTHUR W. KENDALL  & GARY J. DUKER 《Fisheries Oceanography》1998,7(2):69-88

Recruitment fisheries oceanography studies the impact of the environment on the annual production of young to fished populations (finfish as well as invertebrates). Interannual variation in recruitment is the most important source of biological variability facing fisheries managers. Because most variation in recruitment occurs during early, mainly planktonic stages, recruitment fisheries oceanography usually integrates studies of plankton and physical oceanography. The concepts upon which these studies rest were first expressed in the late 1800s by Spencer Fullerton Baird, the first Commissioner of the US Commission of Fish and Fisheries. These concepts appear to have been independently developed by Johan Hjort and others in northern Europe in the early 1900s, and brought back to the United States through contacts between Hjort and Henry Bryant Bigelow, who passed the ideas to his students at Harvard University, including Lionel Albert Walford and Oscar Elton Sette. Although both Walford and Sette did their initial work in recruitment fisheries oceanography off the US east coast, as federal fisheries scientists, they were sent to California in response to the decline of the sardine fishery, where they incorporated the ideas of Hjort into the programme that has become the California Cooperative Oceanic Fisheries Investigations (CalCOFI). The original plan for CalCOFI research was to provide a test of Hjort's ideas. Scientists working with CalCOFI implemented this plan and conducted subsequent research that had its roots in the ideas expressed by Baird. This research was in marked contrast to the fishery-yield orientation of most fisheries research that was being conducted at the time on the west coast of North America, under the dominating influence of William Francis Thompson. In recent years, federal fisheries programmes have investigated recruitment processes of a number of other fish stocks, and considerable effort has been expended toward refining the conceptual framework beyond the hypotheses of Hjort. This paper expands on this history, making note of scientists who were particularly important in the evolution of this discipline. We conclude that although recruitment fisheries oceanography has become a well-established field of study, and many technological advances have been made, the recruitment process is still not well understood and fluctuations in year-class abundance remain a major source of uncertainty in managing marine fisheries.  相似文献