Quarantine requirements for the importation of black rhinoceros from Zimbabwe into Australia     

KA DOYLE  BA ROBINSON  DW WILSON 《Australian veterinary journal》1995,72(10):364-368

SUMMARY The proposal by the Zoological Parks Board of New South Wales to import 10 southern black rhinoceros (Diceros bicornis) from Zimbabwe as part of an international project for conservation of the species presented the Australian Quarantine and Inspection Service (AQIS) with a unique challenge. This importation is, at least in the modern era, the first importation of live herbivores from the African continent. Many of the serious animal diseases in the world are endemic in parts of Africa. Knowledge of which of these diseases infect wild species and may be transmitted from the wild species to domesticated species, is limited. This paper describes the strategies adopted by AQIS to facilitate the importation of rhinoceros while maintaining protection of Australian consumers, rural industries, domestic livestock and fauna against the entry and spread of unwanted pests and diseases.  相似文献   

Fractal colonies     

Rice S 《Science (New York, N.Y.)》1994,266(5185):664-665

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Review: The strobilurin fungicides     

DW Bartlett  JM Clough  JR Godwin  AA Hall  M Hamer  B Parr‐Dobrzanski 《Pest management science》2004,60(3):309-309

The original article to which this Correction refers was published in Pest Management Science 58 (7): 649–662 (2002).Copyright © 2004 Society of Chemical Industry  相似文献   

Privilege and exclusion at the farmers market: findings from a survey of shoppers     

Julie Steinkopf Rice 《Agriculture and Human Values》2015,32(1):21-29

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Does sand content in spawning substrate result in early larval emergence? Evidence from a lithophilic cyprinid fish     

Tea Ba&#x;i&#x;  J. Robert Britton  Stephen P. Rice  Andrew G. Pledger 《Ecology of Freshwater Fish》2019,28(1):110-122

The spawning success of lithophilic salmonids is strongly influenced by the fine sediment content (“fines”) of spawning substrates, yet knowledge on the impacts of fines on the spawning of non‐salmonid lithophiles remains limited, despite their ecological and socio‐economic importance in European rivers. Consequently, the aim here was to use an ex‐situ experiment to investigate the impact of sand content on egg survival and timing of larval emergence of the surface‐spawning cyprinid European barbel Barbus barbus. Thirty incubator boxes within a recirculating system were filled with one of five experimental sediment mixtures (0%–40% sand by mass) that each contained 300 fertilised eggs at a depth of 50 mm. Emerged, free‐swimming larvae were captured and counted daily to assess grain‐size effects on larval survival and emergence. Specifically, total proportion of emerged larvae, cumulative daily proportion of emerged larvae and time required to reach 50% emergence were measured during the study. Whilst the proportion of sand in the sediments did not have a significant impact on egg‐to‐emergence survival (mean survival per treatment 75%–79%), it significantly affected the timing of larval emergence to the water column; early emergence was detected in treatments with elevated sand content (on average, 50% emergence after 12–13 days versus 19 days in the control). Similar to findings from salmonid studies, these results suggest high sand content in spawning gravels can influence timing of larval emergence and potentially cyprinid lithophilic fish survival.  相似文献   

不同灌溉方式的水稻生理效应研究     

郑志明  王兆骞  倪文 《中国农村水利水电》1992,(6)

通过常规淹灌、垄作浸润、控水湿润和间歇灌溉等不同灌溉方式对水稻生理效应的研究表明:垄作浸润和控水湿润灌溉的叶片相对含水量较高。垄作浸润和控水湿灌溉既能减少上位叶(倒一、二叶)的叶绿素、全氮量,防止贪青徒长,又能延缓下位叶(倒三、四叶)的衰老,增加光合作用源的功能时间,同时垄作浸润和控水湿润灌溉的水稻叶片有较高的净光合率(NPR)和气孔导度(CS),增强了光合作用源的强度。节水灌溉能提高根系活力,较好地协调水稻高产与根系早衰之间的矛盾。可见垄作浸润和控水湿润灌溉的水稻具有更好的水分代谢和光合素质。  相似文献   

Insecticidal properties of monoterpenoid derivatives to the house fly (diptera: Muscidae) and red flour beetle (coleoptera: Tenebrionidae)     

Pamela J. Rice  Joel R. Coats 《Pest management science》1994,41(3):195-202

Monoterpenoid derivatives were synthesized and their insecticidal activities were evaluated against red flour beetles, Tribolium castaneum (Herbst), in fumigant bioassays and against house flies Musca domestica (L.) in topical, fumigant, and ovicidal bioassays. Acetate derivatives and haloacetate derivatives were compared with each other, and with the parent monoterpenoid to determine structure-activity relationships. Acetate derivatives were more active than the propionate derivatives of cyclic monoterpenoids in the topical, fumigant, and ovicidal bioassays. Pivalates were topically more insecticidal than acetates to adult house flies, while the acetates had the greater ovicidal activity. Acetates and pivalates were more effective than haloacetates in the topical, red flour beetle fumigation and ovicidal bioassays. Fluoroacetates of cyclic monoterpenoids were the most effective house fly fumigants, followed by acetates, and trichloroacetates. Several derivatives were produced that displayed enhanced activity relative to the parent alcohols or phenols.  相似文献   

Clinical pathology of myodegeneration (pancreas disease) in Atlantic salmon (Salmo salar)     

H W Ferguson  D A Rice  J K Lynas 《The Veterinary record》1986,119(12):297-299

The clinical pathology and histopathology of two groups of Atlantic salmon with severe degenerative myopathy (pancreas disease) is described and compared with a third healthy group. One affected group was anorexic and had low plasma protein and albumin levels while the other was feeding and had normal levels. Both diseased groups had plasma and tissue vitamin E and selenium levels lower than the healthy group. Similarly, creatine kinase values were raised in affected groups. If representative of the syndrome as a whole, the results suggest that the myopathy of pancreas disease has a basis in a vitamin E-selenium deficiency, but whether primary or induced is not clear. The results also demonstrate that the myopathy and pancreatic atrophy do not inevitably lead to anorexia or any other clinically obvious sign of disease, despite both cardiac and oesophageal involvement.  相似文献   

Factors affecting dystocia in beef heifers   总被引：3，自引：0，他引：3  

L E Rice  J N Wiltbank 《Journal of the American Veterinary Medical Association》1972,161(11):1348-1358

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Serological Studies of Parasitized Cattle: II. Electrophoretic Properties of Serial Serum Samples          下载免费PDF全文

Christine E. Rice  H. J. Smith    D. Cochrane 《Canadian journal of veterinary research》1967,31(2):37-42

Electrophoretic examinations using cellulose acetate strips were made on 17 serum samples collected at two-week intervals from each of three calves before and for about four months after they were placed on parasite-infected pastures in June, 1964. Four additional serum samples taken during the winter months when the animals were stabled and two obtained after they were again exposed to infected pastures in June 1965, were also examined. Two control animals of the same age, that were placed on clean pasture in 1964 and not exposed to infected pasture until June 1965, were bled on the same dates and their sera examined in parallel. All five calves showed an increase in the proportion and amount of γ-globulin in their serum as they increased in age but the gain was greatest in the two exposed calves that developed the highest complement-fixing titres with nematode antigens. Complement-fixing titres rose slowly in the other exposed calf and its serum γ-globulin level remained relatively comparable to that of the two controls.  相似文献