Identification of factors associated with the development of insect bite hypersensitivity in horses in The Netherlands     

van den Boom R  Ducro B  Sloet van Oldruitenborgh-Oosterbaan MM 《Tijdschrift voor diergeneeskunde》2008,133(13):554-559

An Internet-based questionnaire among horse owners was carried out to identify factors affecting the incidence of insect bite hypersensitivity (IBHI) among horses in the Netherlands. Information was obtained for 794 horses of various breeds, but the breed distribution was not representative for the Dutch horse population. Of the horses for which information was available, 56% suffered from IBH and 44% did not. The most common clinical symptoms were pruritus, scaling, and hair loss, occurring mainly at the base of the tail and along the mane. Breed, age, region (and local habitat), stabling, type of bedding in the stable, use of the horse, deworming frequency, and season were associated with significant differences in IBH incidence. Knowledge of the factors influencing the incidence of IBH may make it possible to reduce the number of animals affected and help alleviate symptoms in affected horses.  相似文献   

Comparison of 2 canine celiotomy closure models for training novice veterinary students     

Julie A. Williamson  Brigitte A. Brisson  Stacy L. Anderson  Robin M. Farrell  Dawn Spangler 《Veterinary surgery : VS》2019,48(6):966-974

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Seasonal variations in the diet and food selection of the Algerian hedgehog Atelerix algirus     

Chafika Mouhoub-Sayah  Hafsa Djoudad-Kadji  Florian Kletty  André Malan  Jean-Patrice Robin  Michel Saboureau 《African Zoology》2018,53(1):1-10

The Algerian hedgehog Atelerix algirus is an insectivorous species. However, the exact composition of its natural diet remains largely undetermined, especially in relation to seasonal variations in food availability. From March to November, we simultaneously analysed the composition of 180 hedgehog faecal samples and food availability in the Soumman Valley, Algeria to assess food selection in this species. The faeces contained 196 different prey species, of which 92% belonged to the class Insecta. The highest prey species diversity was found in the Coleoptera order (100 species recorded) and the highest species occurrence was found in Hymenoptera (65% of the prey items, mainly represented by the harvester ant Messor barbarus, a crop-ravaging species). This study shows that the Algerian hedgehog is mainly a generalist species with a diet that is strongly linked to food availability. However, seasonal variations were observed in prey selection, and a notable shift in food preference was observed during autumn. The exact nature of these changes in feeding behaviour remains to be investigated, notably in relation to changes in energy requirements of this species before hibernation, in terms of quantity and/or quality.  相似文献   

Reduced tongue tone associated with degeneration of the hypoglossal nerve nucleus in a horse with equine motor neuron disease          下载免费PDF全文

M. Robin  A. Malbon  E. Ricci  C. McGowan  F. Malalana 《Equine Veterinary Education》2016,28(8):434-438

Equine motor neuron disease (EMND) is a condition characterised by generalised weakness and muscle atrophy associated with degeneration of motor neurons in the ventral horns of the spinal cord. Despite the frequent detection of cranial nerve nuclei pathology during post mortem examination, associated clinical signs are rarely reported. This report describes a case of EMND in a pony gelding that presented with clinical signs of diffuse neuromuscular weakness associated with marked flaccidity of the tongue, making differentiation from similar neuromuscular conditions, particularly botulism, extremely challenging.  相似文献   

Megninia ginglymura feather mite infestation in a Hamburg poultry flock in the United Kingdom          下载免费PDF全文

Stefaan Van Poucke  Robin Creighton  Anne S. Baker 《Veterinary dermatology》2016,27(2):127-e35

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Mutations in genes causing human familial isolated hyperparathyroidism do not account for hyperparathyroidism in Keeshond dogs     

Skelly BJ  Franklin RJ 《Veterinary journal (London, England : 1997)》2007,174(3):652-654

The roles of the calcium sensing receptor gene (CaSR) and the multiple endocrine neoplasia gene (MEN1) were investigated in Keeshond dogs with familial hyperparathyroidism. Mutations in these genes have been shown to cause familial isolated hyperparathyroidism (FIH) in humans. Affected dogs were identified through measurement of blood calcium and parathyroid hormone levels. Parathyroid tissue and whole blood was used to clone the cDNAs and individual exonic sequences of both candidate genes. No sequence abnormalities were identified when comparing normal and affected dogs, suggesting that a mapping strategy may be the most appropriate approach for identifying the genetic basis of this valuable comparative canine disease model.  相似文献   

Analysis of genetic variability of aluminium tolerance response in triticale     

Xianguang Zhang  Robin S. Jessop 《Euphytica》1998,102(2):177-182

Comparative analyses of genetic variability of aluminium tolerance response were made in a range of triticale genotypes of two sets, one consisting of six Australian cultivars (or lines), the other consisting of eight South African lines and an Australian check, by following solution culture and screening under controlled growth cabinet conditions. Results showed that Tahara, Tahara ‘S’ and Abacus were the most Al-tolerant triticales among the Australian genotypes in terms of root regrowth characteristics at 10 μg.g^-1 Al. The 19th ITSN 70-4, along with the standard cultivar Tahara was superior to all other South African genotypes; the eight South African genotypes spanned the range from Al-tolerant, moderately Al-tolerant to Al-sensitive. Regrown root length and percentage of seedlings with root regrowth were the two key indicators for screening and evaluating Al tolerance response. Considerable genetic variability of tolerance to Al stress among the two sets of tested genotypes was revealed by the estimates of genetic parameters. High heritability values were recorded for those two indicators, with associated high levels of relative genetic advance (RGA). Further improvement of varietal tolerance to Al stress in triticale could be anticipated through selection and breeding. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

Cervical Myelopathy Associated with Extradural Synovial Cysts in 4 Dogs   总被引：1，自引：0，他引：1  

Robin E. Levitski  Anne E. Chauvet  David Lipsitz 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1999,13(3):181-186

Three Mastiffs and 1 Great Dane were presented to the University of Wisconsin Veterinary Medical Teaching Hospital for cervical myelopathy based on history and neurologic examination. All dogs were males and had progressive ataxia and tetraparesis. Degenerative arthritis of the articular facet joints was noted on survey spinal radiographs. Myelography disclosed lateral axial compression of the cervical spinal cord medial to the articular facets. Extradural compressive cystic structures adjacent to articular facets were identified on magnetic resonance imaging (1 dog). High protein concentration was the most important finding on cerebrospinal fluid analysis. Dorsal laminectomies were performed in all dogs for spinal cord decompression and cyst removal. Findings on cytologic examination of the cystic fluid were consistent with synovial fluid, and histopathologic results supported the diagnosis of synovial cysts. All dogs are ambulatory and 3 are asymptomatic after surgery with a follow-up time ranging from 1 to 8 months. This is the 1st report of extradural synovial cysts in dogs, and synovial cysts should be a differential diagnosis for young giant breed dogs with cervical myelopathy.  相似文献   

Progress and challenges in freshwater conservation planning     

Jeanne L. Nel  Dirk J. Roux  Robin Abell  Peter J. Ashton  Richard M. Cowling  Jonathan V. Higgins  Michele Thieme  Joshua H. Viers 《水产资源保护:海洋与淡水生态系统》2009,19(4):474-485

• 1. Freshwater ecosystems and their associated biota are among the most endangered in the world. This, combined with escalating human pressure on water resources, demands that urgent measures be taken to conserve freshwater ecosystems and the services they provide. Systematic conservation planning provides a strategic and scientifically defensible framework for doing this.
• 2. Pioneered in the terrestrial realm, there has been some scepticism associated with the applicability of systematic approaches to freshwater conservation planning. Recent studies, however, indicate that it is possible to apply overarching systematic conservation planning goals to the freshwater realm although the specific methods for achieving these will differ, particularly in relation to the strong connectivity inherent to most freshwater systems.
• 3. Progress has been made in establishing surrogates that depict freshwater biodiversity and ecological integrity, developing complementarity‐based algorithms that incorporate directional connectivity, and designing freshwater conservation area networks that take cognizance of both connectivity and implementation practicalities.
• 4. Key research priorities include increased impetus on planning for non‐riverine freshwater systems; evaluating the effectiveness of freshwater biodiversity surrogates; establishing scientifically defensible conservation targets; developing complementarity‐based algorithms that simultaneously consider connectivity issues for both lentic and lotic water bodies; developing integrated conservation plans across freshwater, terrestrial and marine realms; incorporating uncertainty and dynamic threats into freshwater conservation planning; collection and collation of scale‐appropriate primary data; and building an evidence‐base to support improved implementation of freshwater conservation plans.

Copyright © 2008 John Wiley & Sons, Ltd.  相似文献   

Sex change and the genetic structure of marine fish populations   总被引：1，自引：0，他引：1  

Julien Chopelet  Robin S Waples  & Stefano Mariani 《Fish and Fisheries》2009,10(3):329-343

The interaction between environmental forces and dispersal characteristics is largely responsible for the patterns of population structure in marine fish. Yet, crucial gaps in knowledge on life-histories and the relative contributions of numerous environmental factors still hinder a thorough understanding of marine population connectivity. One life-history trait so far overlooked by most fish population geneticists is sequential hermaphroditism, whereby individuals first mature as one sex and later in life reverse into the other sex. Population genetic theory predicts that sex-changing fish will present a higher potential for more spatially structured populations than gonochoristic species, as a result of their naturally skewed sex ratio, which is expected to reduce effective population size and hence increase genetic drift. We gathered published data on genetic population structure in marine fish, as summarized by the popular F _ST index, and – after controlling for several potentially confounding factors – we tested the hypothesis that sex-changing species are more genetically structured than gonochoristic ones. Although we found no evidence to support the theoretical expectations, our results suggest new working hypotheses that can stimulate new research avenues at the intersection between physiology, genetics and fisheries science.  相似文献