Causes of perinatal deaths in foals in New Zealand in the 2007 and 2008 seasons     

AG Wolfe  AC Johnstone  IG Mayhew 《New Zealand veterinary journal》2013,61(1)

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Sublethal doses of fipronil intensify synapsin immunostaining in Atta sexdens rubropilosa (Hymenoptera: Formicidae) brains          下载免费PDF全文

Priscila Cintra‐Socolowski  Thaisa C Roat  Roberta CF Nocelli  Pablo H Nunes  Rafael AC Ferreira  Osmar Malaspina  Odair C Bueno 《Pest management science》2016,72(5):907-912

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Anadenanthera colubrina (Vell.) Brenan produces steroidal substances that are active against Alternaria alternata (Fr.) Keissler and that may bind to oxysterol‐binding proteins     

Viviane AC Campos  Fabiano J Perina  Eduardo Alves  Jaqueline Sartorelli  Amanda M Moura  Denilson F Oliveira 《Pest management science》2014,70(12):1815-1822

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The influence of different dietary oil qualities on growth rate,feed utilization and oxidative stress in Atlantic cod     

M.A. Kjær  I.A. Aursnes  G.M. Berge  M. Sørensen  Y. Marchenko  T. Gjøen  B. Ruyter 《Aquaculture Nutrition》2014,20(2):192-204

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Sensor‐based assessment of herbicide effects     

J C Streibig  J Rasmussen  D Andújar  C Andreasen  T W Berge  D Chachalis  T Dittmann  R Gerhards  T M Giselsson  P Hamouz  C Jaeger‐Hansen  K Jensen  R N Jørgensen  M Keller  M Laursen  H S Midtiby  J Nielsen  S Müller  H Nordmeyer  G Peteinatos  A Papadopoulos  J Svensgaard  M Weis  S Christensen 《Weed Research》2014,54(3):223-233

Non‐destructive assessment of herbicide effects may be able to support integrated weed management. To test whether effects of herbicides on canopy variables could be detected by sensors, two crops were used as models and treated with herbicides at BBCH 20 using a logarithmic sprayer. Twelve days after spraying at BBCH 25 and 42 days after sowing, nine sensor systems scanned a spring barley and an oilseed rape field experiment sown at different densities and sprayed with increasing field rates of glyphosate and tribenuron‐methyl. The objective was to compare ED₅₀s for crops and weeds derived by the different sensors in relation to crop density and herbicides. Although sensors were not directly developed to detect herbicide symptoms, they all detected changes in canopy colours or height and crop density. Generally ED₅₀s showed the same pattern in response to crop density within herbicide, but there were marked differences between barley and oilseed rape. We suggest that the results of comparing the various sensor outputs could become a stepping stone to future standardisation for the benefit of the research and development of sensors that will detect herbicide effect on crops and weeds, particularly at the most vulnerable stages of development of the canopy.  相似文献   

Unsuitability of indigenous South American Rutaceae as potential hosts of Diaphorina citri     

Patrícia A de C Felisberto  Eduardo A Girardi  Leandro Pea  Guilherme Felisberto  George AC Beattie  Silvio A Lopes 《Pest management science》2019,75(7):1911-1920

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The magnetic stability of spin-dependent tunneling devices     

S Gider  B Runge  AC Marley  SSP Parkin 《Science (New York, N.Y.)》1998,281(5378):797-799

The tunneling resistance between two ferromagnetic metal layers that are separated by a thin insulator depends on the relative orientation of the magnetization M of each layer. In a memory device, independent switching of the magnetically soft layer is achieved by making the other layer either exchange-biased or magnetically hard. The repeated reversal of M of the soft layer by field cycling can demagnetize the other magnetically hard layer and thus erase the tunnel junction's memory. The M of exchange-biased structures was stable at least to 10(7) cycles, whereas in hard structures, M generally decayed logarithmically with the number of field cycles. The decay was very sensitive to the thickness of the hard layer and the composition of the soft layer. However, no decay was observed when the moment reversal was accomplished by coherent rotation, establishing that demagnetization results from the formation and motion of domain walls in the soft layer during field cycling.  相似文献   

Does the capacity for energy utilization affect the survival of post‐smolt Atlantic salmon,Salmo salar L., during natural outbreaks of infectious pancreatic necrosis?     

Rørvik KA  Alne H  Gaarder M  Ruyter B  Måseide NP  Jakobsen JV  Berge RK  Sigholt T  Thomassen MS 《Journal of fish diseases》2007,30(7):399-409

If osmotic stress and reduced seawater tolerance are predisposing factors for infectious pancreatic necrosis (IPN) outbreaks in farmed Atlantic salmon, increased survival by enhancing access to energy would be expected. The aim of the present study was, therefore, to increase energy access in 1-year old Atlantic salmon after sea transfer by increasing the level of dietary fat, by exchanging some of the dietary oil with more easily oxidized medium chain triacylglycerols, or by dietary supplementation of potentially energy enhancing additives such as clofibrate and tetradecylthioacetic acid (TTA). A natural outbreak of IPN occurred 8 weeks after sea transfer, and a significant dietary effect explaining 76% of the variation in mortality was observed. Relative percentage survival for the fish fed TTA in sea water was 70% when compared with the unsupplemented control, reducing mortality from 7.8 to 2.3%. Muscle fat content and plasma chloride were related to IPN mortality, suggesting that reduced hypoosmoregulatory capacity might be a predisposing factor to the onset of an IPN outbreak. Based on the observation of a threefold increase in white muscle mitochondrial fatty acid oxidizing activity by TTA, it is suggested that TTA has resulted in a re-allocation of dietary fatty acids from storage to energy producing oxidation.  相似文献   

Clinical effects of ivermectin in the treatment of Sarcoptes scabiei var canis in farm foxes     

G N Berge  E Smeds 《Nordisk veterinaermedicin》1984,36(5-6):156-161

The efficacy of ivermectin against natural infection of the mange mite Sarcoptes scabiei var canis in foxes was evaluated. The investigations consisted of two field studies and one controlled study. In experiment 1, ivermectin was given as a single subcutaneous dose at 200 micrograms/kg in six foxes. In experiment 2, was one group, consisting of five animals, administered 200 micrograms ivermectin/kg s.c. twice with an interval of 35 days. Group two, consisting of four animals, was given one subcutaneous injection of 400 micrograms ivermectin/kg. In experiment 3, ten foxes were given 1 ml 0.2% Eqvalen s.c. (i.e. 340-440 micrograms ivermectin/kg). A control group of ten animals was not medicated. Before and after treatment a clinical evaluation and skin scraping for microscopic examination was carried out in all three experiments. The results indicated that ivermectin was a good alternative in the therapy of the Sarcoptes mange in foxes by moderate mite infection. A progressive clinical improvement of the mange lesions was evident in the treated foxes. Mites were not detected in skinscraping, except in one animal in experiment 3. It was concluded that ivermectin should be administered, in an initial dose of 400 micrograms/kg and a repeated dose of 200 micrograms/kg 2-3 weeks after the first treatment.  相似文献   

L'embryogenèse de Meloidogyne arenaria (Neal, 1889) Chitwood, 1949     

J. Berge  A. Cuany 《EPPO Bulletin》1973,2(9):73-83

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