Retrospective evaluation of thoracic computed tomography findings in dogs naturally infected by Angiostrongylus vasorum          下载免费PDF全文

Mark E. Coia  Gawain Hammond  Daniel Chan  Randi Drees  David Walker  Kevin Murtagh  Janine Stone  Nicholas Bexfield  Lizzie Reeve  Jenny Helm 《Veterinary radiology & ultrasound》2017,58(5):524-534

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Retrospective Evaluation of Whole Body Computed Tomography for Tumor Staging in Dogs with Primary Appendicular Osteosarcoma          下载免费PDF全文

Jessica L. Talbott  Sarah E. Boston  Rowan J. Milner  Amandine Lejeune  Carlos H. de M. Souza  Kelvin Kow  Nicholas J. Bacon  Jorge A. Hernandez 《Veterinary surgery : VS》2017,46(1):75-80

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Methoxyflurane for Procedural Analgesia at 4470 m Altitude     

Matt Wilkes  Eleanor C. Heath  Nicholas P. Mason 《The Forestry Chronicle》2018,29(3):388-391

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Sleep Characterization at High Altitude     

Nicholas Kanaan  Caleb Phillips  Becky Higbee  David Pomeranz  Michael Shaheen  Kristin Fontes  Patrick Cain  Sean Wentworth  Carolyn Meyer  Grant Lipman 《The Forestry Chronicle》2017,28(4):366

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Parvoviral enteritis and salmonellosis in raccoons with sudden death     

Chun-Ming Lin  Benjamin Hause  Deanna Gualtieri  Nicholas Robinson 《Journal of veterinary diagnostic investigation》2021,33(6):1172

Eight of 9 juvenile raccoons at a rehabilitation center died without obvious prior clinical signs. Gross changes were unremarkable except for mildly distended intestines. Microscopically, crypt loss, distension, necrosis, and regeneration with intranuclear viral inclusions were observed in the small intestine, with marked lymphoid depletion and necrosis in Peyer patches and mesenteric lymph nodes. Immunohistochemistry with a canine parvovirus antibody showed intensive signals of parvoviral antigens in the crypts and lymphoid germinal centers. Metagenomic sequencing allowed assembly of a complete parvoviral genome with >99% identity to canine parvovirus 2a, as well as Salmonella enterica subsp. enterica. Also, S. enterica subsp. enterica serovar Thompson with multiple antimicrobial resistance was isolated from the intestinal contents. Concurrent infection with parvovirus and Salmonella should be included as a differential diagnosis in raccoons with sudden death.  相似文献   

Migrations and movements of Atlantic tarpon revealed by two decades of satellite tagging     

Jiangang Luo  Jerald S. Ault  Bruce T. Ungar  Steven G. Smith  Michael F. Larkin  Thomas N. Davidson  David R. Bryan  Nicholas A. Farmer  Scott A. Holt  A. Scott Alford  Aaron J. Adams  Robert Humston  Adam S. Marton  David Mangum  Russell Kleppinger  Angel Requejo  Julian Robertson 《Fish and Fisheries》2020,21(2):290-318

Understanding large‐scale migratory behaviours, local movement patterns and population connectivity are critical to determining the natural processes and anthropogenic stressors that influence population dynamics and for developing effective conservation plans. Atlantic tarpon occur over a broad geographic range in the Atlantic Ocean where they support valuable subsistence, commercial and recreational fisheries. From 2001 through 2018, we deployed 292 satellite telemetry tags on Atlantic tarpon in coastal waters off three continents to document: (a) seasonal migrations and regional population connectivity; (b) freshwater and estuarine habitat utilization; (c) spawning locations; and (d) shark predation across the south‐eastern United States, Gulf of Mexico and northern Caribbean Sea. These results showed that some mature tarpon make long seasonal migrations over thousands of kilometres crossing state and national jurisdictional borders. Others showed more local movements and habitat use. The tag data also revealed potential spawning locations consistent with those inferred in other studies from observations of early life stage tarpon leptocephalus larvae. Our analyses indicated that shark predation mortality on released tarpon is higher than previously estimated, especially at ocean passes, river mouths and inlets to bays. To date, there has been no formal stock assessment of Atlantic tarpon, and regional fishery management plans do not exist. Our findings will provide critical input to these important efforts and assist the multinational community in the development of a stock‐wide management information system to support informed decision‐making for sustaining Atlantic tarpon fisheries.  相似文献   

Koi herpesvirus and carp oedema virus: Infections and coinfections during mortality events of wild common carp in the United States     

Soumesh K. Padhi  Isaiah Tolo  Margaret McEachran  Alexander Primus  Sunil K. Mor  Nicholas B. D. Phelps 《Journal of fish diseases》2019,42(11):1609-1621

Koi herpesvirus (KHV; cyprinid herpesvirus‐3) and carp oedema virus (CEV) are important viruses of common and koi carp (Cyprinus carpio); however, the distribution of these viruses in wild common carp in North America is largely unknown. During the summers of 2017 and 2018, 27 mass mortalities of common carp were reported from four states in the USA (Minnesota, Iowa, Pennsylvania and Wisconsin), the majority of which were distributed across eight major watersheds in southern Minnesota. Samples from 22 of these mortality events and from five clinically healthy nearby carp populations were screened for KHV, CEV and SVCV using real‐time polymerase chain reaction (qPCR). KHV was confirmed in 13 mortality events, CEV in two mortality events and coinfections of KHV/CEV in four mortality events. Nucleotide sequence analysis revealed that the KHV and CEV detected here are closely related to European lineages of these viruses. While molecular detection alone cannot conclusively link either virus with disease, the cases described here expand the known range of two important viruses. This is also the first reported detection of KHV and CEV coinfections in wild carp populations.  相似文献   

Occurrence,abundance and associations of Topeka shiners (Notropis topeka) in restored and unrestored oxbows in Iowa and Minnesota,USA     

Nicholas T. Simpson  Alexander P. Bybel  Michael J. Weber  Clay L. Pierce  Kevin J. Roe 《水产资源保护:海洋与淡水生态系统》2019,29(10):1735-1748

Using historical fisheries data to predict tuna distribution within the British Indian Ocean Territory Marine Protected Area,and implications for its management     

Nicholas Dunn  David Curnick 《水产资源保护:海洋与淡水生态系统》2019,29(12):2057-2070

Comparative SAR Evaluations of Annonaceous Acetogenins for Pesticidal Activity     

Kan He  Lu Zeng  Qing Ye  Guoen Shi  Nicholas H. Oberlies  Geng-Xian Zhao  C. Jesse Njoku  Jerry L. McLaughlin 《Pest management science》1997,49(4):372-378

The activities of 44 Annonaceous acetogenins, which were originally isolated by monitoring plant fractionations with the brine shrimp lethality test (BST), were evaluated in the yellow fever mosquito larvae microtiter plate (YFM) assay. The results clearly demonstrate that most acetogenins have pesticidal properties. The structure–activity relationships indicate that the compounds bearing adjacent bis-THF (tetrahydrofuran) rings with three hydroxyl groups are the most potent. Bullatacin ( 1 ) and trilobin ( 7 ) gave the best activities against YFM with LC₅₀ values of 0·10 and 0·67 mg litre^-1, respectively. Compounds showing LC₅₀ values below 1·0 mg litre^-1 in this assay are usually considered significant as new lead candidates for pesticidal development. In the BST, the corresponding LC₅₀ values were 1·6×10^-3 ( 1 ) and 9·7×10^-3 ( 7 ) mg litre^-1. This is the first report of pesticidal structure–activity relationships for a series of Annonaceous acetogenins which are known to act, at least in part, as potent inhibitors of mitochondrial NADH: ubiquinone oxidoreductase. © of SCI.  相似文献