ASH SOILS IN WESTERN SUDAN     

L. P. WHITE 《European Journal of Soil Science》1967,18(2):309-317

The ash soils of the Jebel Marra region of Western Sudan are developed on a relatively recently deposited felspathic ash and do not contain allophane. Though they show some specific characteristics of ash soils elsewhere, many features are common to other soils of entirely different origin in the same region. Because of their immaturity, variation due to altitude and rainfall, which may differ considerably over short distances in the Jebel Marra, Massif, is minimal.  相似文献   

Systemic treatment of bacterial skin infections of dogs and cats   总被引：1，自引：0，他引：1  

STEPHEN D. WHITE 《Veterinary dermatology》1996,7(3):133-143

Abstract Antibiotics and immunostimulants are used in the systemic treatment of bacterial skin infections in small animals. The major antibiotic groups commonly utilized are the macrolides, lincosamides, potentiated sulphonamides, β-lactamase-resistant penicillins, cephalosporins and fluoroquinolones. Empirical usage, culture and sensitivity, mode of action, dosages, efficacy and side-effects are reviewed. A summary of the veterinary literature relative to immunostimulants is also included. Résumé— Antibiotiques et immunostimulants sont utilisés dans le traitement systémique des infections bactériennes cutanées des animaux de compagnie. Les families d'antibiotiques les plus utilisées sont les macrolides, les lincosanides, les sulfonamides potentialisés, les pénicillines résistantes à la lactamase, les céphalosporines et les fluoroquinolones. L'utilisation empirique, l'isolement et l'antibiogramme, le mode d'action, les dosages, l'efficacité et les effets secondaires sont présentés. Un résumé de la littérature vétérinaire concernant les immunostimulants est également inclus. [White, S. D. Systemic treatment of bacterial skin infections of dogs and cats. (Traitement systémique des infections bactériennes cutanées du chien et du chat). Veterinary Dermatology 1996; 7 : 133–143.] Resumen Para el tratamiento sistémico de ls infecciones bacterianas cutáneas en pequeños animales se usan antibióticos e inmunoestimulantes. Los grupos de antibióticos más frecuentemente utilizados incluyen los macrólidos, lincosamidas, sulfonamidas potenciadas, penicilinas beta-lactamasa resistentes, cefalosporinas y fluoroquinolonas. Se revisan su uso empirico, cultivo y sensibilidad, mecanismo de acción, dosis, eficacia y efectos colaterales. Se incluye un resumen de la literatura veterinaria sobre immunoestimulantes. [White, S. D. Systemic treatment of bacterial skin infections of dogs and cats. (Tratamiento sistemico de las infecciones bacterianas cutaneas de perros y gatos). Veterinary Dermatology 1996; 7 : 133–143.] Zusammenfassung— Antibiotika und Immunstimulantien werden in der systemischen Behandlung von bakteriellen Hautinfektionen bei Kleintieren eingesetzt. Die Hauptgruppen der gewöhnlich verwendeten Antibiotika sind Markrolide, Lincosamide, potenzierte Sulfonamide, beta-Laktamase-resistente Penicilline, Cephalosporine und Fluroquinolone. Die empirische Anwendung, Kultur und Empfindlichkeit, Wirkungsweise, Dosierung, Wirksamkeit und Nebenwirkungen werden dargestellt. Eine Zusammenfassung der Veterinärliteratur bezüglich Immunstimulantien wird miteingeschlossen. [White, S.D. Systemic treatment of bacterial skin infections of dogs and cats (Systemische Behandlung von bakteriellen Hautinfektionen bei Hund und Katze). Veterinary Dermatology 1996; 7 : 133–143.]  相似文献   

Effect of replacing fishmeal and oil with simple or complex mixtures of vegetable ingredients in diets fed to Nile tilapia (Oreochromis niloticus)     

T.L. BORGESON  V.J. RACZ  D.C. WILKIE  L.J. WHITE  & M.D. DREW 《Aquaculture Nutrition》2006,12(2):141-149

The effect of replacing fishmeal with simple or complex mixtures of plant proteins in tilapia diets was examined. Diet formulations were arranged in a 2 × 4 factorial design with two types of plant protein mixtures used to replace fishmeal (simple: soybean meal and maize gluten meal or complex: soybean meal, maize gluten meal, dehulled flax, pea protein concentrate and canola protein concentrate) and four levels of protein originating from fishmeal (1000 g kg^?1, 670 g kg^?1, 330 g kg^?1 and 0 g kg^?1). Diets contained equal digestible protein (380 g kg^?1) and digestible energy (17.6 MJ kg^?1). The average daily gains, specific growth rates and feed efficiencies of fish fed diets with 0 g kg^?1 fishmeal were significantly lower than fish fed diets with the 330 g kg^?1, 670 g kg^?1 or 1000 g kg^?1 fishmeal levels. Fish fed the complex diets had significantly higher average daily gains, specific growth rates, feed : gain ratios and protein efficiency ratios than those fed the simple diets. Intestinal villus length decreased with decreasing levels of fishmeal and increased with increased diet complexity but the effects were not significant. Replacement of fishmeal with a complex mixture of plant ingredients may allow a greater replacement of fishmeal in diets fed to Nile tilapia.  相似文献   

Hindlimb response to tactile stimulation of the pastern and coronet     

H. M. CLAYTON  A. D. WHITE  L. J. KAISER  S. NAUWELAERTS  M. LAVAGNINO  N. C. STUBBS 《Equine veterinary journal》2010,42(3):227-233

Reasons for performing study: Lightweight tactile stimulators attached to the hind pasterns increase the height of the hind hoof flight arc but details of the induced changes in swing phase kinematics and kinetics have not been investigated. Hypotheses: Stimulators on the hind pasterns are associated with increased hindlimb joint flexions and increased positive work performed by the hip and tarsal musculature. Materials and methods: Nine nonlame horses trotted 4 times with and without 55 g tactile stimulators loosely attached around the hind pasterns. Height of the flight arc and peak flexion angles of the hindlimb joints were measured and net positive and negative work performed across each joint during the swing phase were calculated using inverse dynamics analysis and compared across paired conditions. Results: Speed and stride duration did not change but stimulators were associated with a reduction in hind stance duration. The flight arc was higher with stimulators due to increased flexions of the stifle, tarsal, metatarsophalangeal and distal interphalangeal joints. Positive work increased in the tarsal musculature, but not in the hip musculature, and negative work increased across the stifle, metatarsophalangeal and distal interphalangeal joints. Potential relevance: The effects of tactile stimulation of the hind pasterns on joint motion and muscle activation may be used in physiotherapy and rehabilitation to restore or increase flexion of the hindlimb joints with the exception of the hip joint. The ability to stimulate concentric activity of the tarsal musculature may have therapeutic applications in conditions such as toe dragging.  相似文献   

Comments on 'Considerations on the use of time-domain reflectometry (TDR) for measuring soil water content' by W.R. Whalley     

I. WHITE  J.H. KNIGHT  S.J. ZEGELIN  G.C. TOPP 《European Journal of Soil Science》1994,45(4):503-508

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ISOLATION OF THE MONKEY BRAIN: IN VITRO PREPARATION AND MAINTENANCE     

WHITE RJ  ALBIN MS  VERDURA J 《Science (New York, N.Y.)》1963,141(3585):1060-1061

Sustained viability of the primate brain, as a totally isolated organ preparation, was achieved by utilizing an extracorporeal (compatible donor) circulation. Five rhesus monkey brains, completely isolated neurogenically and vascularly, were perfused in vitro for 30 to 180 minutes. Retention of biological activity was evidenced by: (i) persistent electrocortical activity, and (ii) significant mean A-Vo(o2) (5.8 volumes percent) and V-Aco(co2) (5.0 volumes percent) differences across the isolated brain.  相似文献   

Strangulated tesricle of a cryptorchid (dog)     

WHITE PT  JOHNSON P 《Journal of the American Veterinary Medical Association》1955,126(937):312

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The value of soil sterilants for the control of clubroot on a field scale   总被引：1，自引：0，他引：1  

S. T. BUCZACKI  J. G. WHITE 《Plant pathology》1979,28(1):36-39

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Control of the mushroom phorid Megaselia halterata (Wood) with dichlorvos applied by an automatic atomiser     

P. F. WHITE 《Plant pathology》1981,30(1):37-40

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Control of lettuce big-vein disease by soil sterilisation     

J. G. WHITE 《Plant pathology》1980,29(3):124-130

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