References of "Marlier, Didier"
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See detailEpizootic Rabbit Enteropathy
Licois, D.; Coudert; Marlier, Didier ULg

in Maertens, L.; Coudert, P. (Eds.) Recent advances in rabbits sciences (2007)

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See detailExperimentally induced epizootic rabbit enteropathy: Clinical, histopathological, ultrastructural, bacteriological and haematological findings
Dewrée, Roxane; Meulemans, L.; Lassence, Cédric ULg et al

in World Rabbit Science (2007), 15(2, APR-JUN), 91-102

Epizootic rabbit enteropathy is an emerging disease that has appeared in French intensive enclosed rabbit farms since the beginning of 1997. Common clinical signs are mild watery diarrhoea with ... [more ▼]

Epizootic rabbit enteropathy is an emerging disease that has appeared in French intensive enclosed rabbit farms since the beginning of 1997. Common clinical signs are mild watery diarrhoea with considerable distension of the abdomen. At necropsy, a significant dilation of the stomach and small intestine without gross evidence of acute or chronic enteric lesions (inflammation or congestion) was observed. The purpose of this study was to describe the anatomopathologic changes concerning the small intestine and those concerning the blood profile, in experimentally infected rabbits. In a first part of the experiment, thirty animals were inoculated with a reference inoculum and five were kept as controls for clinical signs examination and histopathological study. In a second part, 17 out of the inoculated rabbits and the 5 controls animals were randomly assigned to blood testing. Microscopic lesions were studied in sections from the different parts of the small intestine (duodenum, jejunum and ileum) by light microscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The histological findings revealed only limited inflammation in inoculated animals. Major villous changes were atrophy, fusion, destruction and loss of epithelial cells. In inoculated rabbits, the congestion and dilation of blood vessels of jejunal lamina propria were significantly higher than in control animals (P<0.005). There was significantly more (P<0.05) apoptosis of cells of the jejunal epithelium in inoculated rabbits than in control animals. Infiltration of polymorphonuclear neutrophiles was observed into the jejunal or ileal tunica muscularis. SEM performed on the intestinal tract of 15 inoculated rabbits revealed blankets and globular particles of mucus associated with numerous bacteria on jejunum and ileum villi. This was; not observed in the intestinal tract of control rabbits. Bacteria were found adhering to the epithelial surface and inside intestinal epithelial cells in a few animals by TEM and by light microscopy after Warthin-Starry staining. None of the bacteria isolated from the intestinal mixed contents and cultivated on usual media, are commonly known as rabbit's pathogens. Regarding the haernatological profile, neutrophil counts significantly increased (P<0.05) and lymphocyte counts significantly decreased (P<0.01), in inoculated rabbits compared to those of the control group. [less ▲]

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See detailMyxomatosis
Bertagnoli, S.; Messud-Petit, F.; Marlier, Didier ULg

in Maertens, L.; Coudert, P. (Eds.) Recent advances in rabbits sciences (2007)

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See detailIncreasing incidence of megabacteriosis in canaries (Serinus canarius domesticus)
Marlier, Didier ULg; Leroy, Cécile ULg; Sturbois, M. et al

in Veterinary Journal (2006), 172(3), 549-552

A total of 312 post-mortem examinations of 178 canaries (Serinus canarius domesticus), 40 parakeets (Melopsittacus undulatus, Nymphicus hollandicus) and 94 parrots (Amazona aestiva, Psitaccus erithacus ... [more ▼]

A total of 312 post-mortem examinations of 178 canaries (Serinus canarius domesticus), 40 parakeets (Melopsittacus undulatus, Nymphicus hollandicus) and 94 parrots (Amazona aestiva, Psitaccus erithacus) were conducted at the Birds and Rabbits Service of the University of Liege, Belgium. After a detailed gross examination, tissue samples were collected for virological and/or bacteriological and/or parasitological examination to complete the diagnosis. In all cases, a microscopic examination of the proventricular mucus layer was undertaken for the detection of the anamorphic ascomycetous yeast Macrorhabdus ornithogaster, which causes the non-zoonotic but important disease in cage birds known as megabacteriosis. At the time of death, megabacteriosis was diagnosed respectively in 28% of canaries and 22.5% of budgerigars (P value for Fisher's exact test = 0.5576), but was not diagnosed in parrots (P value for Fisher's exact test < 0.0001). The incidence of megabacteriosis significantly increases along the years (P value for chi(2) test < 0.0001, Cramer's coefficient = 0.3405). The most common gross lesions seen at necropsy of the 59 megabacteriosis cases was proventricular dilatation (86.1%). All the birds diagnosed as typical megabacteriosis cases were free of Salmonella spp. infections and of any parasitic infections. Four megabacteriosis cases (three canaries, one parakeet) were not included in statistical analysis as salmonellosis, pseudotuberculosis, coccidiosis and chlamydophilosis were diagnosed concomitantly in these birds. With the exception of megabacteriosis, the most frequent causes of death were protozoan (coccidiosis, lankesterellosis) infections (18.4%) and salmonellosis (17.1%) in canaries, and psittacosis (31.5%) and viral hepatitis (26.3%) in parakeets. In parrots, the most common causes of death were psittacosis (28.6%) and aspergillosis (28.5%). (c) 2005 Elsevier Ltd. All rights reserved. [less ▲]

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See detailDétermination des espèces bactériennes présentes dans TEC3 par analyse du polymorphisme de longueur de fragments de restriction de l’ADN codant pour l’ARN ribosomial 16S
Szalo, Mihaï; Lassence, Cédric ULg; Marlier, Didier ULg

in Proceedings 3ème colloque international de bactériologie francophone (2006, July 11)

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See detailChlamydophila psittaci chez les canards d’élevages et d’ornement en Région Wallonne
Delleur, Valery ULg; Marlier, Didier ULg

in Proceedings du 3ème colloque international de bactériologie francophone (2006, July)

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See detailViral infections in pigeons
Marlier, Didier ULg; Vindevogel, Henri ULg

in Veterinary Journal (2006), 172(1), 40-51

This review provides a current update on the major viral diseases of the domestic pigeon (Columba livia domestica), based on scientific reports and clinical experience. Paramyxovirus 1, adenovirus ... [more ▼]

This review provides a current update on the major viral diseases of the domestic pigeon (Columba livia domestica), based on scientific reports and clinical experience. Paramyxovirus 1, adenovirus, rotavirus, herpesvirus 1, poxvirus and circovirus infections are described according to common clinical signs and target tissues. Since pigeons are sometimes treated as if they were poultry, the review also summarises the common viral infections of poultry for which pigeons are considered resistant. It is hoped that the review will provide a useful reference for veterinarians and others and offer advice on the diagnosis, treatment and prevention of the major infectious diseases of pigeons. (c) 2005 Elsevier Ltd. All rights reserved. [less ▲]

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See detailTolerance study in broiler chickens after the oral administration of doxycycline with the drinking water
Cambier, Carole ULg; Marlier, Didier ULg; De Busser, J

in Journal of Veterinary Pharmacology and Therapeutics (2006)

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See detailComparaison de l’antibiorésistance vis-à-vis de la fluméquine et de l’enrofloxacine chez des souches d’Escherichia coli d’oiseaux de compagnie ou d’oiseaux de production
Marlier, Didier ULg

in Proceedings du 3ème colloque international de bactériologie francophone (2006)

Les résistances simples ou conjointes à la fluméquine et à l’enrofloxacine sont significativement plus rares chez les oiseaux de compagnie que chez ceux de production et semblent être dues à une sélection ... [more ▼]

Les résistances simples ou conjointes à la fluméquine et à l’enrofloxacine sont significativement plus rares chez les oiseaux de compagnie que chez ceux de production et semblent être dues à une sélection directe après traitement. Chez les oiseaux de production la fréquence des souches résistantes n’est influencée ni par l’âge, ni par la possibilité ou non de traiter les animaux (industrielle vs « bio-label »). Ces observations peuvent s’expliquer par le portage de souches résistantes dès la naissance des poussins; souches acquises au départ du cheptel reproducteur, ce dernier jouant un rôle disséminateur majeur lié à l’aspect typiquement pyramidal de la production avicole (faible nombre de parentaux qui produisent un grand nombre de volailles de production). [less ▲]

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See detailInfectious agents associated with epizootic rabbit enteropathy: Isolation and attempts to reproduce the syndrome
Marlier, Didier ULg; Dewrée, Roxane; Lassence, Cédric ULg et al

in Veterinary Journal (2006), 172(3), 493-500

Epizootic rabbit enteropathy (ERE), a highly lethal (30-80% mortality) disease of broiler rabbits aged 6-14 weeks, first appeared in 1997 in French intensive enclosed rabbitries and is of unknown ... [more ▼]

Epizootic rabbit enteropathy (ERE), a highly lethal (30-80% mortality) disease of broiler rabbits aged 6-14 weeks, first appeared in 1997 in French intensive enclosed rabbitries and is of unknown aetiology. Bacteriological, virological and parasitical examination of the intestinal contents of rabbits that had died either in spontaneous field cases or after experimental reproduction of ERE, were undertaken in an attempt to identify infectious agents that may play a role in the disease. Two bacterial strains, Clostridium perfringens and non-enteropathogenic Escherichia coli, were repeatedly isolated at high faecal counts from naturally infected animals. In field cases, a correlation between typical gross lesions of epizootic enteropathy and the presence of the alpha toxin of Cl. perfringens was observed (P < 0.0001; Chi-squared test). Although attempts to reproduce the disease by inoculation with different pools of cultivable bacterial strains failed, the disease was successfully reproduced by inoculation with one French and two Belgian samples of caecal contents. (c) 2005 Elsevier Ltd. All rights reserved. [less ▲]

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See detailEnteritis and enterotoxaemia in rabbits
Marlier, Didier ULg

in Duchesnes, C.; Menozzi, M. G.; Pelkonen, S. (Eds.) et al Diagnosis and typing of clostridia in medical and food microbiology (2006)

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See detailNouveaux animaux de compagnie : infections à Salmonella enterica et état sanitaire
Huybens, Nathalie ULg; Delleur, Valéry; Poulipoulis, Anastassios ULg et al

in Annales de Médecine Vétérinaire (2006), 150(4), 241-246

Human transmission of Salmonella enterica from new companion animals is usually suspected even though very few data according Salmonella infections in these animal species are available. The prevalence of ... [more ▼]

Human transmission of Salmonella enterica from new companion animals is usually suspected even though very few data according Salmonella infections in these animal species are available. The prevalence of Salmonella enterica infections in the digestive tract of 450 new companion animals ( 45 ferrets, 7 birds, 308 rodents, 82 rabbits and 8 reptiles) coming from pet shops or individual owners was determined by bacteriological examinations of anal swabs or pooled fresh faeces. Only one Salmonella Enteritidis strain was isolated from a ferret in a pet shop. The symptomatic or asymptomatic Salmonella carriage in ferrets, rodents and rabbits is thus not as frequent as what was suspected. [less ▲]

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See detailBeak Trimming
Marlier, Didier ULg

in Veterinary Journal (2005), 170

To trim or not to trim beaks? It is always a good time to raise this difficult question. Indeed, since the release of the Brambell Committee report1 on welfare in the UK in 1965, discussion on the welfare ... [more ▼]

To trim or not to trim beaks? It is always a good time to raise this difficult question. Indeed, since the release of the Brambell Committee report1 on welfare in the UK in 1965, discussion on the welfare of beak-trimmed birds has continued unabated. The aim of this new book (with its 15 contributors) is not, of course, to close the debate but merely to consolidate the huge amount of scientific information available on methods welfare and alternatives to beak-trimming. In the Preface, it is stated that the book will be of interest to welfare groups, policy makers, scientists, industry leaders and students of poultry science who wish to acquaint themselves with the welfare issues associated with beak-trimming and the potential solutions for reducing the need to beak-trim poultry. This goal is achieved to the extent that most of the information (although sometimes rather concisely) is presented in the eight chapters of this 174 page book. The first chapter describes the methods and reasons for beak-trimming. Chapter 2 raises the ethical question of beak-trimming and gives some of the pros and cons of the arguments. Pain and nerve injuries induced by beak-trimming are presented in Chapters 3–5 and the production responses (improved liveability, plumage quality and feed efficiency during egg laying) of beak-trimmed birds are assessed in Chapter 6 with bird health and handling issues associated with beak-trimming in Chapter 7. The last chapter is devoted to alternatives to beak-trimming. It includes environmental enrichment methods; a consideration of the genetics of feather pecking and cannibalism; dietary recommendations to reduce cannibalism in chickens and laying hens; manipulation of light intensities and colour to modify behaviour; management of body weight; application of abrasive strips in the feed trough to blunt the tips of the beaks of laying hens and the use of fitted devices and stock wound spray in injured birds to prevent further pecking. Among all these alternatives, the genetic solution might well prove to be the most sustainable, efficacious and cost effective. Overall, however, throughout the book this reviewer had the feeling, rightly or wrongly, that it was mostly written by opponents of beak-trimming and that arguments of the defence were sometimes omitted. [less ▲]

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See detailEuropean College of Rabbit Medicine and Surgery?
Vindevogel, Henri ULg; Marlier, Didier ULg

in Veterinary Record : Journal of the British Veterinary Association (2004), 154(13), 412-412

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See detailRisk evaluation of the transmission of the avian influenza virus to humans
Saegerman, Claude ULg; Meulemans, G.; Van Reeth, K. et al

in Annales de Médecine Vétérinaire (2004), 148(2), 65-77

Since mid-december 2003, an epizootic of highly pathogenic avian influenza (type A, sub-type H5N1) occurs in eastern and south-eastern Asia. This epizootic is historically unprecedented in its virulence ... [more ▼]

Since mid-december 2003, an epizootic of highly pathogenic avian influenza (type A, sub-type H5N1) occurs in eastern and south-eastern Asia. This epizootic is historically unprecedented in its virulence, geographical spread, and economic consequences for the agricultural sector. Implications for human health were registered in Vietnam and in Thailand. This paper summarizes the current knowledge about the risk evaluation of the transmission of avian influenza virus to humans. The current asian epizootic has highlighted the key role of global health information systems and also the need for exhaustive notification of human and animal cases. It reinforces the concept of veterinary public health. [less ▲]

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See detailL'Entéropathie Epizootique du Lapin (EEL) : un bilan provisoire des résultats après 20 mois de recherches
Marlier, Didier ULg; Dewrée, Roxane; Licois, Dominique et al

in Proceedings of the 10èmes Journées de la Recherche Cunicole (2003, November 20)

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See detailL'Entéropathie Epizootique du Lapin (EEL) : étude du rôle des infections par clostridium perfringens dans l’étio-pathogénie de ce syndrome
Dewrée, Roxane; Licois, Dominique; Coudert, Pierre et al

in Proceedings of the 10èmes Journées de la Recherche Cunicole (2003, November 20)

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See detailEssais de reproduction expérimentale de l'entéropathie épizootique du lapin (EEL) avec des inoculums originaires de Belgique et des Pays-Bas et avec des souches bactériennes isolées de ces inoculums ainsi que de TEC2 et TEC3 (inoculums INRA)
Licois, Dominique; Dewrée, Roxane; Coudert, Pierre et al

in Proceedings of the 10èmes Journées de la Recherche Cunicole (2003, November 20)

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See detailA review of the major causes of digestive disorders in the European rabbit
Marlier, Didier ULg; Dewrée, Roxane; Delleur, Valéry et al

in Annales de Médecine Vétérinaire (2003), 147(6, DEC-JAN), 385-392

Digestive diseases frequently occur in rabbitries, inducing high mortality rates and huge economic losses. The major causes of these pathological conditions are described in this review. The current state ... [more ▼]

Digestive diseases frequently occur in rabbitries, inducing high mortality rates and huge economic losses. The major causes of these pathological conditions are described in this review. The current state of knowledge on two diseases of unknown origin, the so called Rabbit Epizootic Enteropathy and Mucoid Enteropathy is also presented. [less ▲]

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See detailExamination of Escherichia coli from poultry for selected adhesin genes important in disease caused by mammalian pathogenic E. coli
Stordeur, Philippe; Marlier, Didier ULg; Blanco, J. et al

in Veterinary Microbiology (2002), 84(3), 231-241

A collection of 1601 extraintestinal and intestinal Escherichia coli isolated from chickens, turkeys and ducks. in Belgium, France and Spain, was hybridised with gene probes specific for fimbrial and ... [more ▼]

A collection of 1601 extraintestinal and intestinal Escherichia coli isolated from chickens, turkeys and ducks. in Belgium, France and Spain, was hybridised with gene probes specific for fimbrial and afimbrial adhesins (F17, F18, S (Sfa/F1C), Bfp, Afa, Cs31A, Intimin (Eae), Aida-1) of intestinal, urinary and invasive E. coli of mammals and with a probe specific for the P (Pap/Prs) fimbrial adhesin of urinary and invasive E. coli of mammals and birds. Three hundred and eighty-three strains (23.9%) were P-positive, 76 strains (4.8%) were Afa-positive, 75 strains (4.7%) were F17-positive, 67 strains (4.2%) were S-positive, 23 (1.4%) were Intimin-positive. and all were F18-, Cs31A-, Aidal- and Bfp-negative. The 75 F17-positive strains harboured different major subunit A-encoding gene variants, but the f17Ac variant was the most frequent (52 strains, 69,3%) and seven strains (9.3%) were not typeable. The f17G gene variant coding for the GII adhesin was the most frequent (56 strains, 75.0%), whereas the f17GI gene variant was present in four strains (5%) and 15 strains (20.0%) were not typeable. All Afa-positive strains harboured the afa-8 variant. The 23 Intimin-positive E. coli tested positive for the beta -variant (16 strains; 69.6%) or for the gamma -variant (seven strains;, 30.4%) of the eae gene. Chicken and turkey E. coli were more frequently probe-positive (43.6 and 43.1 %, respectively) than duck E. coli 31.5%) and extraintestinal E. coli were also more frequently probe-positive (48.4%) than intestinal strains (18.5%). Different combinations of probe positive hybridisation results were observed in 72 of the 540 probe-positive E. coli (13.3%). The most frequent combinations were between AfaE-8 and F17 probes (47 strains; 8.7%) and between P and S probes (13 strains. 2.4%). Although f17- and afa-8-related DNA sequences can be plasmid-located in mammalian E. coli. they were not in avian E. coli. Besides the P fimbrial adhesin, F17 and S fimbrial and Afa-VIII and Intimin afimbrial adhesins may thus represent colonisation factors of avian pathogenic E. coli. (C) 2002 Elsevier Science B.V. All rights reserved. [less ▲]

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