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[serologic detection of rotavirus infection in swine from the region of brittany (author's transl)].indirect immunofluorescence (micromethod) was used to detect antirotavirus antibodies. sera (166) were collected on adult pigs at slaughterhouse in the following french departments: finistere, morbihan and ille et vilaine. antibodies were detected in 83% of the samples.1979231922
[respiratory diseases of swine: some epidemiologic aspects].epidemiological surveys enable to know better the aetiology of respiratory diseases. the surveys carried out in slaughter-houses in brittany (france) in 1980 and 1981, show a worrying situation concerning porcine respiratory diseases. microbiological studies brought out the preponderance of the isolation of mycoplasma hyopneumoniae, pasteurella multocida, bordetella bronchiseptica, streptococcus suis and actinobacillus suis. some patterns of experimental infection with mycoplasma hyopneumoniae a ...19854064626
description and sources of contamination by campylobacter spp. of river water destined for human consumption in brittany, france.presence or absence of campylobacter spp. in water of five rivers upstream from an intake point for drinking water production was investigated, and isolates genetically compared with human, pig and poultry isolates in order to determine their source. river water and drinking water obtained from these rivers were sampled one time per month, over a period of one year, and tested for campylobacter. isolates were typed by pfge. campylobacter was not detected in treated drinking water, but 50% of the ...200919942377
campylobacter from sows in farrow-to-finish pig farms: risk indicators and genetic diversity.sows have been identified as a source of campylobacter contamination in piglets. we carried out a one-year study, in 2008, at 53 farrow-to-finish farms in brittany, france, to determine the proportion of sows excreting campylobacter. we also determined the genotypes of the campylobacter isolates. moreover, generalized estimating equations including repeated effects were used to assess the association between management practices and farm characteristics, and risk of campylobacter shedding by sow ...201121802224
impacts of rainfall events on runoff water quality in an agricultural environment in temperate areas.since a rise in dissolved organic carbon (doc) concentrations has been observed for surface waters at least over the last two decades, a change in weather conditions (temperature and precipitations) has been proposed to partly explain this increase. while the majority of doc delivery from soils to stream occurs during rainfall events, a better understanding of the rainfall influence on doc release is needed. this study has been conducted in brittany, western france, on agricultural experimental ...201121316736
a simplified method for detecting pathogenic yersinia enterocolitica in slaughtered pig tonsils.the aim of this study was to collect preliminary data on the carriage of pathogenic yersinia enterocolitica in slaughtered pigs in france and to test a simplified method for detecting these strains from tonsils. from january to march 2009, 900 tonsil swabs were taken from pigs at one slaughterhouse in brittany, france. the swabs were vortexed in 10 ml psb broth, then 1 ml was added to 9 ml itc broth. the media were incubated for 48 h at 25°c. the psb enrichment broth was streaked on cin plates a ...201020850483
estimation of pig fecal contamination in a river catchment by real-time pcr using two pig-specific bacteroidales 16s rrna genetic markers.the microbiological quality of coastal or river water can be affected by fecal contamination from human or animal sources. to discriminate pig fecal pollution from other pollution, a library-independent microbial source tracking method targeting bacteroidales host-specific 16s rrna gene markers by real-time pcr was designed. two pig-specific bacteroidales markers (pig-1-bac and pig-2-bac) were designed using 16s rrna gene bacteroidales clone libraries from pig feces and slurry. for these two pig ...200919329663
comparison of genetic profiles of campylobacter strains isolated from poultry, pig and campylobacter human infections in brittany, france.five hundred eighty-two campylobacter isolates (177 from humans, 319 from poultry and 86 from pig) collected in brittany, france, in 2003 and 2004 were typed by pulsed-field gel electrophoresis. the number of human cases increased during the hot season, particularly for c. jejuni. twelve genetic groups out of 27 contained human isolates collected over the two years. these groups had 21.3 and 17.0% of the isolates obtained in 2003 and 2004, respectively. in four cases, isolates from 2003 have the ...200918534783
molecular characterization of porcine circovirus type 2 isolates from post-weaning multisystemic wasting syndrome-affected and non-affected pigs.porcine circovirus type 2 (pcv2) is recognized as a primary cause in post-weaning multisystemic wasting syndrome (pmws). in this study, both pcv1 and pcv2 types were studied in pigs originating from pmws-affected (+) and non-affected (-) herds from brittany. pcv2 was identified by pcr in 100 % of animals from pmws(+) herds and in 76 % from pmws(-) herds, while pcv1 was not detected. the complete sequences of 38 pcv2 isolates were determined and 23 new variants were identified, displaying between ...200414769887
modeling flow and nitrate fate at catchment scale in brittany (france).in the intensive pig-farming (sus scrofa) area of brittany (western france), many surface and subsurface water resources are contaminated by nitrate (no3) with concentrations that chronically exceed the european community 50 mg l(-1) drinking standard. to ensure sustainable water supply, the fate of no3 must be considered in both surface water and ground water. the fate of n was investigated in a britain catchment, the coët-dan watershed, with an integrated management tool: the hydrological swat ...200314674524
perception of the environmental impacts of current and alternative modes of pig production by stakeholder groups.the current industrial pig production model is in crisis, due to its association with environmental pollution, doubtful product quality and lack of animal well-being. in bretagne (france), a region of intensive pig production, a survey of seven stakeholder groups concerned with pig production was conducted, as part of a research programme dedicated to the assessment of the environmental impact of different modes of pig production. a very large majority of pig producers (93%) and their suppliers ...200312877871
forty years of achievement in french research on digestive physiology in the pig.the contribution of the research group set up by rérat in the early 1960s in jouy-en-josas, and then expanded to rennes, is summarised. as digestive processes are a major key to the nutritional status of monogastric animals, original methodologies based on advanced experimental surgery were developed in the pig to quantify the digestion and absorption yield, to know their factors of variation, and to understand their physiological and nutritional consequences. the group also extended its experti ...200111434517
isolation of porcine circovirus-like viruses from pigs with a wasting disease in the usa and europe.samples of lung, liver, kidney, pancreas, spleen, and lymph node from pigs with postweaning multisystemic wasting syndrome from california (usa) and samples of mesenteric lymph nodes from similarly diseased pigs from brittany (france) were examined by light microscopy, in situ hybridization (ish), and/or virus isolation. whole genomic probes for porcine circovirus (pcv) and chicken anemia virus (cav) were used for ish. tissue homogenate supernatants were inoculated onto pk/15 cells for virus iso ...19989526853
risk factors for high sow mortality in french swine herds.episodes of high sow mortality rates affect profitability of swine farms. however, relevant control actions are difficult to implement. the objective of this study was to identify the risk factors for high levels of sow mortality rate (hm) in french swine herds. a case-control study was carried out in 102 swine herds located in brittany (western france). level of sow mortality of a herd was quantified by the annual mortality rate using sow-days as denominator. fifty-five (53.9%) herds which expe ...19989500168
analysis of the relationship between seroprevalence of aujeszky's disease and pig density within the different areas of brittany.data of the first general serological screening for aujeszky's disease in brittany are analysed. brittany is divided in 4 'départements' and 1,263 'communes'. relationships between seroprevalence and pig density are analysed, using a spatial moving average, at the 'commune' level. pig density is related to seroprevalence of aujeszky's disease, but this relationship is very different from one area to another.19979220608
isolation of two h1n2 influenza viruses from swine in france.samples collected in 1987 and 1988 in brittany from influenza-infected swine made it possible to isolate and antigenically characterize two h1n2 recombinant viruses (sw/france/5027/87 and sw/france/5550/88). the former virus was cloned and reinoculated to swine to allow reproduction of the disease and reisolation of a strain similar to the original one. the serodiagnostic tests carried out on both the original sera and those from the experimentally infected animals confirmed that the virus was a ...19947979974
use of prediction models to forecast and analyse airborne spread during the foot-and-mouth disease outbreaks in brittany, jersey and the isle of wight in 1981.between march 4 and 26, 1981 the french veterinary authorities reported a series of 14 outbreaks of disease due to type o foot-and-mouth (fmd) virus, 13 in brittany and one in normandy. the united kingdom reported fmd type o in jersey on march 19 and in the isle of wight on march 22. the field and laboratory investigations on the farm in the isle of wight are outlined. the way in which short and long range numerical models were used to forecast the airborne spread of fmd from brittany to the uk ...19827064324
[epizootic swine influenza on animal farms in brittany].since 1976, seroepidemiological surveys using radial haemolysis and isolation trials from samples collected from pigs at the abattoir showed that brittany was an important reservoir of swine subclinical infections due to the human influenza a viruses h3n2. influenza a h1sw n1sw subclinical infections sporadically occurred from 1979 to 1981. in january 1982 an epizootic started in finistère which spread from west to east. the h1sw and n1sw antigens of 28 stains isolated from 1979 to 1982 were stu ...19836658105
effect of confinement, climatic conditions and litter parity on the seasonal variations of the fertility rate and prolificacy.prolificacy and fertility in sows were analysed according to the month of service, the regional locations of the herd, the type of building (confinement or open front) and the parity of the sows. fertility varied throughout the year and was lowest in august, september and october. the regional location of the herd had little or no effect. primiparous sows were less fertile than multiparous sows, regardless of the type of building. results for closed buildings were better than those for semi-outd ...19846486687
[further aujeszky's disease foci in brittany]. 19715105221
[immunovirologic markers of the risk of influenza a h3n2 among swine].a seroepidemiological survey using the radial haemolysis test has been performed on a representative sampling of the pig herds in brittany. since 1978, influenza a h3n2 strains spread in that reservoir giving subclinical infections. we detected antibodies directed against the influenza prototypes isolated during the human outbreaks from 1973 to 1977. only one h3n2 virus was isolated in 1980: its antigenic structure was in agreement with the previous serological data. in 1984 outbreaks of swine i ...19854095329
[the persistence of activity of h1n1 (swine) influenza virus in pig breeding units during non-epidemic phases].a study is carried on in a group of 16 commercial breeding-finishing units in brittany (france). the aim of this study is to try to reveal the persistence of activity of the influenza virus within these intensive units after an acute epizootic. in each farm two batches of pigs are selected, individually identified and followed from suckling period to slaughter. serological controls are conducted every month on the same pigs. both influenza and aujeszky's disease antibodies are apprehended. furth ...19853004802
blue-eared pig disease in brittany: a new test. 19921553812
blue-eared pig disease in brittany. 19921546437
report on the first outbreaks of the porcine reproductive and respiratory syndrome (prrs) in france. diagnosis and viral isolation.we describe the first known occurrence in france of the porcine reproductive and respiratory syndrome (prrs), a new porcine disease that first appeared in germany in november 1990. outbreaks of the disease appeared in november 1991 in brittany (france), with comparable clinical features to those observed in other countries, were definitively confirmed by a serological analysis from the affected animals using an immunoperoxidase monolayer assay with prrs-virus infected alveolar macrophages. furth ...19921319124
[do the eosinophilic granulomas observed in brittany represent a form of anisakiasis? the larvae of thynnascaris aduncum do not produce these granulomas experimentally].to explain the enigmatical origin of gastric eosinophilic granulomas prevailing among patients in brittany (france), we have tried to experiment with the larvae of thynnascaris (thynnascaris aduncum (rud.)), a nematode found in the sardine (sardina pilchardus (walbaum)), a fish sometimes eaten raw in our country. in a preliminary experiment, larvae of thynnascaris were observed to penetrate the mucosa of the rabbit stomach in vitro at room temperature. but in vivo, whatever the means, the ways a ...19751242122
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