Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| potential fitness benefits of group living in the red fox, vulpes vulpes. | for species such as the red fox, spatio-temporal variation in resource availability may promote group living even when the benefits of group formation are not of significant magnitude to promote territorial expansion and delayed dispersal. in this paper we use data from an urban fox population to compare the relative benefits of dispersal and natal philopatry as routes to attaining dominant status and investigate the potential benefits of territory inheritance, alloparental care and reproduction ... | 1998 | 9933538 |
| the spermatogenic cycle in the silver fox (vulpes vulpes): frequency of the different stages prior to and during the breeding season. | in the silver fox the cycle of the seminiferous epithelium could be classified into eight characteristic stages defined on the basis of different, well-defined cell associations. the main criteria for the staging were the type of spermatogonia, the appearance of primary spermatocytes, the occurrence of meiotic figures and secondary spermatocytes and the shape and location of spermatids. in some cases more than one stage could be found within the same transverse tubular section. the average frequ ... | 1998 | 9972497 |
| successful embryo transfer in the silver fox (vulpes vulpes). | surgical embryo transfer in the silver fox was investigated as part of a larger project concerning the conservation of endangered canine species using modern artificial reproduction techniques with the farmed fox as a model. the animals were chosen on the basis of synchrony in natural oestrus. the timing of ovulation and artificial insemination was determined by measuring electrical resistance in the vagina. twenty-nine embryos were flushed from eight humanely killed donor females and transferre ... | 1998 | 9877059 |
| cloning and characterization of the cdna encoding the ph20 protein in the european red fox vulpes vulpes. | the ph20 protein is thought to play a crucial role in mammalian fertilization. the fox ph20 homologue has been cloned from a testis cdna library and the deduced protein sequence shows high levels of homology to ph20 proteins isolated from other species. unlike other ph20 proteins the fox protein does not appear to be membrane associated through a gpi-linkage nor does it show the presence of a transmembrane domain at the c-terminus of the protein. it is in this region that the proteins appear to ... | 1998 | 9801268 |
| [biosynthesis of testosterone in the gonads in silver fox embryos after long-term selection for domesticated behavior]. | fetal gonad weight and testosterone content in serum and gonads were analyzed in silver fox every five days from the 35th day of pregnancy until delivery. fetal testicles were also tested for testosterone production induced by chorionic gonadotropin (cg) in vitro. pregnant females were sampled from an experimental population subjected to selection for domesticated behavior and a commercial population (control). fetal gonad weight was significantly lower in domesticated animals than in controls. ... | 1998 | 9749335 |
| diseases diagnosed in red foxes from the southeastern united states. | diagnostic findings on 51 red foxes (vulpes vulpes) from the southeastern united states examined from 1967 to 1995 were reviewed. etiologic diagnoses included sarcoptic manage (n = 33), traumatic injury and associated complications (n = 5), suspected canine distemper (n = 2), capture myopathy (n = 1), congenital absence of guard hairs (n = 1), intradermal tick infestation (n = 1), otodectic manage (n = 1), and toxicosis (n = 1). the cause of morbidity was not determined for three of the foxes, a ... | 1998 | 9706573 |
| antibodies against rabbit hemorrhagic disease virus in free-ranging red foxes from germany. | antibodies against rabbit hemorrhagic disease virus (rhdv) from 352 red fox (vulpes vulpes) sera collected in germany (mecklenburg-vorpommern) in 1993 were tested by a blocking enzyme-linked immunosorbent assay (elisa) test kit. ninety samples with positive or suspected results also were analyzed by the hemagglutination inhibition test (hit). eighteen serum samples (5%) were positive with the blocking elisa and eight of these also were positive with hit. the 18 positive sera also were tested by ... | 1998 | 9706552 |
| antibodies against orthopoxviruses in wild carnivores from fennoscandia. | two hundred and three sera obtained in 1993-96 from red foxes (vulpes vulpes), lynx (lynx lynx), brown bears (ursus arctos) and wolverines (gulo gulo) in fennoscandia (norway, sweden, and finland) were examined for the presence of anti-orthopoxvirus antibodies by a competition enzyme linked immunosorbent assay (elisa). high prevalences were found for the red foxes in norway (7/62, 11%) and finland (7/14, 50%). while only one of 73 (1%) lynx from finland had anti-orthopoxvirus antibodies, a high ... | 1998 | 9706553 |
| responses of red foxes to first and second infection with sarcoptes scabiei. | the clinical response of red foxes (vulpes vulpes) to the mange mite, sarcoptes scabiei, was characterized by infection of five, 4-mo-old red foxes with s. scabiei originally isolated from a wild red fox. the infected foxes and three uninfected control foxes were monitored with weekly complete blood counts and biweekly serum chemistry profiles, hypersensitivity tests, and evaluation of skin biopsies. after 7 wk, the foxes were treated and held free of infection for 2 mo. six foxes, three previou ... | 1998 | 9706571 |
| mycobacterium bovis in coyotes from michigan. | during a survey for tuberculosis in wild carnivores and omnivores, mycobacterium bovis was cultured from pooled lymph nodes of three adult female coyotes (canis latrans) harvested by hunters in michigan (usa). no gross or histologic lesions suggestive of tuberculosis were seen in these animals. one coyote was taken from montmorency county and two coyotes from alcona county located in the north-eastern portion of michigan's lower peninsula where free-ranging white-tailed deer (odocoileus virginia ... | 1998 | 9706576 |
| effects of cabergoline on reproduction in three families of australian marsupials. | the effects of the prolactin inhibiting drug, cabergoline, on pregnant and lactating marsupials were investigated in four species from three diverse families: the tammar wallaby, macropus eugenii, the quokka, setonix brachyurus, the brushtail possum, trichosurus vulpecula, and the fat-tailed dunnart, sminthopsis crassicaudata. in tammar wallabies, 20 micrograms cabergoline kg-1 injected intramuscularly 1 day before expected birth did not alter the timing of parturition but neonates died within a ... | 1998 | 9713388 |
| canine heartworm (dirofilaria immitis) detected in red foxes (vulpes vulpes) in urban melbourne. | canine heartworm (dirofilaria immitis) was detected by antigen elisa in 8 (6.4%) of 125 red foxes (vulpes vulpes) captured in the melbourne (australia) metropolitan area. circulating microfilariae were also detected by whole blood filtration in six of these foxes. cursory sampling of mosquitos at two of the sites where positive foxes were captured revealed the existence of two known mosquito vectors of dirofilaria. the existence of widespread fox populations in melbourne, together with known mos ... | 1998 | 9735919 |
| [epizootiologic situation of rabies in 1997. urbanization of sylvatic rabies in yugoslavia]. | the federal republic of yugoslavia is situated on the border of a great sylvatic rabies epizootics occurring in central and eastern europe. that is the reason why a relatively small number of rabid animals have been registered. in 1997, 124 rabid animals, mainly red foxes, were identified. in recent years red fox rabies epizootics in yugoslavia has annually spread 15-20 km to the south. rabies in domestic animals, especially dogs, was characterized with furious clinical forms and dog-to-dog tran ... | 1998 | 9769653 |
| survey on viral pathogens in wild red foxes (vulpes vulpes) in germany with emphasis on parvoviruses and analysis of a dna sequence from a red fox parvovirus. | the seroprevalence of canine parvovirus (cpv), canine distemper virus (cdv), canine adenovirus (cav) and canine herpesvirus (chv) infections in red foxes (vulpes vulpes) was determined in fox sera collected between 1991 and 1995. a total of 500 sera were selected and the seroprevalences were estimated to be 13% (65 of 500 sera) for cpv, 4.4% (17 of 383 sera) for cdv, 35% (17 of 485 sera) for cav, and 0.4% (2 of 485 sera) for chv, respectively. no statistically significant differences were observ ... | 1998 | 9825797 |
| comparison of the effectiveness of two protocols of antirabies bait distribution for foxes (vulpes vulpes). | in a plateau and hill region of france (the doubs), two protocols of rabies vaccine bait distribution targeted at foxes were compared: helicopter distribution of vaccine baits alone (control zone) and a combined aerial distribution by helicopter with an additional deposit of vaccine baits at fox den entrances by foot (test zone). in the test zone covering an area of 436 km2, baits were distributed by helicopter at a rate of 13.4 baits/km2. additionally, an average of 11.4 vaccine baits at the en ... | 1998 | 9851010 |
| studies of synaptonemal complexes in farm mammals--a review. | for the last 10 years extensive studies of synaptonemal complexes in farm mammals were carried out. in this article a survey of the obtained results is presented. studies on synaptic behavior of chromosomes at pachytene substage of meiotic prophase i in carriers of centric fusions (cattle, sheep, goat, pig, and blue fox) showed that the trivalent is rarely involved in an association with the sex bivalent. in carriers of reciprocal translocations (pig and cattle) a wide range of synaptic configur ... | 1998 | 9864858 |
| coproantigen detection in a survey of echinococcus multilocularis infection among red foxes, vulpes vulpes schrencki, in hokkaido, japan. | detection of echinococcus coproantigen using sandwich enzyme-linked immunosorbent assay (selisa) was performed on fecal samples of red foxes in hokkaido, japan. fecal samples were collected around fox dens in 1990 and 1992. the antibodies used for selisa recognize heat-resistant antigens, thus all fecal samples were heated to render it safe for handling before examination. detection of taeniid egg in fox feces collected was considered as an indication of e. multilocularis infection. in fecal sam ... | 1998 | 9637302 |
| distribution of sylvatic species of trichinella in estonia according to climate zones. | a survey on trichinellosis among sylvatic and domestic animals from estonia revealed the presence of trichinella nativa (tn), trichinella britovi (tb), and trichinella spiralis (ts). muscle samples were collected from 776 sylvatic and 1,086 domestic animals. muscle larvae from 52 of the 74 positive samples were identified, using random-amplified polymorphic dna analysis; 19 samples showed tn, 27 samples tb, and 4 samples ts. a raccoon dog (nyctereutes procyonoides) and a red fox (vulpes vulpes) ... | 1998 | 9488368 |
| trichinella spiralis in sylvatic hosts from prince edward island. | larvae of trichinella sp. were found in two of 208 red foxes (vulpes vulpes) and one of 125 coyotes (canis latrans) obtained from trappers from prince edward island (canada) in 1995 and 1996. a polymerase chain reaction based dna biotyping method revealed the larvae to be isolates of trichinella spiralis. this is the first verified identification of t. spiralis in sylvatic hosts from canada. | 1998 | 9476239 |
| construction and immunological assessment of salmonella typhimurium expressing fox sperm ldh-c4. | this study examined immune responses of foxes to oral doses of recombinant salmonella typhimurium expressing fox sperm-specific lactate dehydrogenase (fldh). the cdna for fldh was cloned into the expression plasmid pkk233.2 (pkkfldh). salmonella typhimurium aroa- (sl3261) was transformed with either the pkk233.2 plasmid alone (spkk) or the pkkfldh construct (spkfldh). the fldh expressed by spkfldh retained enzymatic activity and was recognized by human ldh-c4-specific antibody. male european red ... | 1998 | 11596868 |
| abundances of red fox and pine marten in relation to the composition of boreal forest landscapes. | the effects of human-caused fragmentation of boreal forest on the abundance of red fox vulpes vulpes l. and pine marten martes martes l. were studied by combining the finnish wildlife-triangle snow-track data (1990-94) with land-use and forest resources data employing the gis. two study areas (each 45 000 km(2) ) located in northern and southern finland were selected for the investigation. the extent of landscape that best explained predator abundance (tracks per 10 km 24 h(-1) ) was the same (a ... | 1998 | 26412368 |
| niche relations among three sympatric mediterranean carnivores. | previous studies carried out in the doñana national park reported that red foxes (vulpes vulpes) were killed by iberian lynxes (lynx pardinus), whereas similar-sized eurasian badgers (meles meles) were not. therefore, we predicted that fox would avoid lynx predation risk by niche segregation whereas we did not expect such a segregation between badger and lynx. as an approach for evaluating our predictions, we compared their diet, activity patterns, and habitat use in an area of doñana where the ... | 1999 | 28307883 |
| comparison between microscopic and automated differential leukocyte counts in the silver fox (vulpes vulpes) and the blue fox (alopex lagopus). | differential leukocyte (wbc) counts in blood from clinically healthy silver foxes (n=32) and blue foxes (n=37) obtained from an automated hematology analyzer (technicon h*1 hematology system) with canine software were compared with microscopic differential wbc counts (m-diff). there was good agreement between the automated differential cell count (a-diff) and the m-diff for neutrophil and lymphocyte percentages. the correlation was lower for monocyte percentages and variable for eosinophil perce ... | 1999 | 12075528 |
| antigen-specific systemic and reproductive tract antibodies in foxes immunized with salmonella typhimurium expressing bacterial and sperm proteins. | attenuated salmonella typhimurium strains are potential 'safe' delivery vectors of an oral immunocontraceptive vaccine for the european red fox (vulpes vulpes). in the present study, model bacterial (escherichia coli heat-labile enterotoxin b subunit, ltb) and fox sperm (fsp10) antigens were expressed in s. typhimurium sl3261 (delta aroa) under the control of the trc promoter. adult female foxes were given three oral immunizations with sl3261 containing either ltb (sl3261/pltb), fsp10 (sl3261/pf ... | 1999 | 10898286 |
| lungworm (crenosoma vulpis) infection in dogs on prince edward island. | crenosoma vulpis is a nematode lungworm that is highly prevalent in the red fox population of atlantic canada. dogs are susceptible to infection with clinical signs consisting primarily of a chronic cough. a recent report of c. vulpis infection in 3 dogs on prince edward island prompted an investigation into the importance of this parasite as a cause of chronic respiratory disease in island dogs. a general prevalence was determined through the necropsy of dogs euthanized at the local humane soci ... | 1999 | 12001335 |
| [studies on the incidence of echinococcus multilocularis in red foxes (vulpes vulpes) in north-east, central and south of poland]. | during the year 1994-1997, a total number of 1042 red foxes orginating from the 33 provinces north-east, central and south of poland under special safety procautions for intestinal stages of echinococcus multilocularis using the mucosal-smer technique were examined. an average of 5.09% (53 foxes) from 10 provinces was infected. in those provinces, the prevalance varied between 1.19% to 35.71%. the infection varied from low to very high but mostly harboured gravid e. multilocularis parasites with ... | 1999 | 16886382 |
| molecular and pharmacological characterization of dominant black coat color in sheep. | dominant black coat color in sheep is predicted to be caused by an allele ed at the extension locus. recent studies have shown that this gene encodes the melanocyte stimulating hormone receptor (mc1-r). in mouse and fox, naturally occurring mutations in the coding region of mc1-r produce a constitutively activated receptor that switches the synthesis from phaeomelanin to eumelanin within the melanocyte, explaining the black coat color observed phenotypically. in the sheep, we have identified a m ... | 1999 | 9892731 |
| liver fluke (opisthorchiidae) findings in red foxes (vulpes vulpes) in the eastern part of the federal state brandenburg, germany--a contribution to the epidemiology of opisthorchiidosis. | parasitological examination of 677 livers from red foxes shot in connection with a rabies control programme were carried out in the eastern districts of the federal state brandenburg/germany in 1996. of the foxes, 32.5% were positive for opisthorchiid flukes. metorchis bilis, the most frequently occurring fluke was found in 28.1% of foxes with numbers between 1 and 185. opisthorchis felineus was found in 6.7% of fox livers. a maximum of 169 specimens was removed from one animal. pseudamphistomum ... | 1999 | 9934964 |
| serological evidence of infection with ehrlichia spp. in red foxes (vulpes vulpes) in switzerland. | serum samples from 1,550 red foxes in switzerland were tested for antibodies to the agents of canine granulocytic and monocytic ehrlichiosis by an indirect immunofluorescent technique. forty-four (2.8%) of the samples were positive for ehrlichia phagocytophila, which is an antigen marker for granulocytic ehrlichiosis. in contrast, none of the samples had antibodies specific to ehrlichia canis, the agent of monocytic ehrlichiosis. | 1999 | 10074544 |
| [pseudo-scabies transmitted by red fox]. | pseudoscabies, i.e. infestation of human skin with animal mites may occasionally occur and should be considered in the differential diagnosis of pruritic and papular skin disease. we report here on a 52-year-old woman with pseudoscabies or canine scabies (sarcoptes scabiei var. canis), transmitted by indirect contact with a red fox in the urban area of berlin. red foxes may live in unhabited areas of metropolitan large cities, i.e. in garages, car wrecks and cellars. full remission of the prolon ... | 1999 | 10097956 |
| nitroaromatic munition compounds: environmental effects and screening values. | available data on the occurrence, transport, transformation, and toxicity of eight nitroaromatic munition compounds and their degradation products, tnt, tnb, dnb, dna, 2-adnt, rdx, hmx, and tetryl were used to identify potential fate in the environment and to calculate screening benchmarks or safe environmental levels for aquatic and terrestrial organisms. results of monitoring studies revealed that some of these compounds persist at sites where they were produced or processed. most of the compo ... | 1999 | 10218448 |
| toxoplasma gondii antibodies in naturally exposed wild coyotes, red foxes, and gray foxes and serologic diagnosis of toxoplasmosis in red foxes fed t. gondii oocysts and tissue cysts. | antibodies to toxoplasma gondii were determined in sera from 222 coyotes (canis latrans), 283 red foxes (vulpes vulpes), and 97 gray foxes (urocyon cinereoargenteus) from indiana, kentucky, michigan, and ohio during 1990-1993. sera were examined in 1:25, 1:100, and 1:500 dilutions by the modified direct agglutination test (mat) with formalinized whole tachyzoites plus mercaptoethanol. antibodies were found in 131 (59.0%) of 222 coyotes, 243 (85.9%) of 283 red foxes, and 73 (75.3%) of 97 gray fox ... | 1999 | 10219302 |
| adenocarcinoma of the mammary gland in a red fox from austria. | a mammary gland adenocarcinoma was diagnosed in an adult red fox (vulpes vulpes) which was shot in austria in august 1995. metastases were found in the kidneys and liver. this is the first reported case of an adenocarcinoma in a fox, and lack of mammary gland carcinoma in this species may be age related. | 1999 | 10231770 |
| thyroid c-cell carcinoma with amyloid in a red fox (vulpes vulpes schrenchki). | an amyloid-producing medullary thyroid carcinoma (mtc) in a red fox (vulpes vulpes schrenchki) bred in a zoo was examined using histopathologic and immunohistochemical techniques. the neoplastic cells had an ill-defined cytoplasmic membrane and abundant, finely granular eosinophilic cytoplasm, containing numerous argyrophilic granules. the neoplastic tissues were divided into various sizes by a vascular connective stroma, which was partly fibrovascular with broad areas of hyalinization containin ... | 1999 | 10421103 |
| transmission trials, its2-pcr and rapd-pcr show identity of toxocara canis isolates from red fox and dog. | toxocara canis isolates from dog and from red fox were compared in transmission trials and with molecular analysis using rapd-pcr technique and comparison of the its2 sequence. after oral infection of bitches with 20,000 embryonated t. canis eggs of vulpine and canine origin, the vertical transmission to pup's was examined. all animals of both groups developed typical clinical symptoms of toxocarosis. the haematological, serological, parasitological and post mortem results showed no differences ... | 1999 | 10435795 |
| costs and benefits of rabies control in wildlife in france. | the author presents an evaluation of the cost of wildlife rabies in france. this study included the vaccination of domestic animals, the reinforcement of epidemiological surveillance networks and the support provided to diagnostic laboratories, the expenses associated with outbreaks of rabies (animal losses and associated economic losses), the clinical observation of those animals which had bitten humans and the preventive vaccination and post-exposure treatment of humans. a substantial percenta ... | 1999 | 10472684 |
| [the electron microscopic analysis of synaptonemal complexes in male hybrids]. | cytogenetic studies of sterile male f1 hybrids may be helpful for the understanding of genetic bases of haldane's rule. the main purpose of this review is to provide several explanations for various meiotic abnormalities associated with impaired fertility. results of cytogenetic studies of gametogenesis in vertebrates (mainly mammals) performed using electron microscopy lead to the conclusion that abnormal morphology of synaptonemal complexes is one of the main factors underlying sterility of hy ... | 1999 | 10519128 |
| ticks and antibodies to borrelia burgdorferi from mammals at cape hatteras, nc and assateague island, md and va. | results of a survey for ixodid ticks and/or serum antibodies to borrelia burgdorferi from 14 species of small to large mammals from eastern coastal areas of the united states are presented. most samples were obtained from july 1987 through june 1989 (excluding december-march) at 3 locales: assateague is. national seashore, worcester co., md., and accomack co., va. (approximately 38 degrees 05' n 75 degrees 10' w), and cape hatteras national seashore, dare co., nc (approximately 35 degrees 30' n ... | 1999 | 10534951 |
| parasitological survey on wild carnivora in north-western tohoku, japan. | in the winter of 1997-1998, we collected parasitological data from 60 wild carnivora in the north-western part of tohoku region, japan. these included 7 foxes (vulpes vulpes japonica), 20 raccoon dogs (nyctereutes procyonoides viverrinus), 29 martens (martes melampus melampus), 3 weasels (two mustela sibirica itatsi and one m. nivalis namiyei), and one japanese badger (meles meles anakuma). roundworms (toxocara canis in foxes and toxocara tanuki in raccoon dogs), hookworms (ancylostoma kusimaens ... | 1999 | 10535507 |
| prevalence of intestinal helminths of dogs and foxes from jordan. | necropsy of 340 stray and semi-stray dogs (canis familiaris) and nine red foxes (vulpes vulpes) from jordan revealed that 239 dogs (70.3%) and all foxes were infected with at least one intestinal helminth species. no trematodes were found in the intestine of these hosts. the overall infection rates with cestodes, nematodes and acanthocephalans in dogs were 66.8%, 4.4% and 2.9%, respectively. the following cestodes were identified: echinococcus granulosus (9.4%), taenia pisiformis (11.8%), t. hyd ... | 1999 | 10540955 |
| water vole (arvicola terrestris scherman) density as risk factor for human alveolar echinococcosis. | concern is growing in europe about alveolar echinococcosis (ae) with the increase in grassland rodent and red fox populations, intermediate and definitive hosts for echinococcus multilocularis, respectively. the objective of this study was to assess the influence of rodent densities on human ae distribution. spatial poisson regression analyses were performed with geomorphologic features, landscape composition, climatic characteristics, and water vole density as independent variables. the outcome ... | 1999 | 10548289 |
| susceptibility of red and gray foxes to infection by ehrlichia chaffeensis. | red foxes (vulpes vulpes) and gray foxes (urocyon cinereoargenteus) were evaluated for their susceptibility to experimental infection with ehrlichia chaffeensis, the causative agent of human monocytotropic ehrlichiosis. two red foxes and three gray foxes were inoculated intravenously with e. chaffeensis (15b-wtd-ga strain) and were monitored at 7, 14, 21, and 28 days post inoculation (dpi) for evidence of infection using an indirect fluorescent antibody (ifa) assay, light microscopy, polymerase ... | 1999 | 10574528 |
| a complete comparative chromosome map for the dog, red fox, and human and its integration with canine genetic maps. | cross-species reciprocal chromosome painting was used to delineate homologous chromosomal segments between domestic dog, red fox, and human. whole sets of chromosome-specific painting probes for the red fox and dog were made by pcr amplification of flow-sorted chromosomes from established cell cultures. based on their hybridization patterns, a complete comparative chromosome map of the three species has been built. thirty-nine of the 44 synteny groups from the published radiation hybrid map and ... | 1999 | 10610712 |
| helminth fauna of carnivores distributed in north-western tohoku, japan, with special reference to mesocestoides paucitesticulus and brachylaima tokudai. | in the winter of 1998-1999, we collected parasitological data from 54 wild carnivores in the north-western part of tohoku region, japan. these consisted of 38 martens (martes melampus melampus), 14 raccoon dogs (nyctereutes procyonoides viverrinus) and 2 foxes (vulpes vulpes japonica). collected helminth parasites were 11 nematode, 10 trematode, 3 cestode, and a single acanthocephalan species, including 5 hitherto unknown species for this research area or the mainland of japan (honshu). mesocest ... | 1999 | 10651058 |
| investigation of skin samples from red foxes (vulpes vulpes) in eastern brandenburg (germany) for the detection of borrelia burgdorferi s. l. | during earlier investigations a high prevalence of borrelia (b.) burgdorferi s. l. in unfed ixodes (i.) ricinus ticks in the federal state of brandenburg has been demonstrated. in the present study skin samples were obtained from 100 red foxes (vulpes vulpes) from the districts where the highest b. burgdorferi prevalences had previously been found (i.e. uckermark, barnim, märkisch-oderland, oder-spree). bsk- and mkp-medium including inhibitory substances were used for cultivation of spirochaetes ... | 1999 | 10652725 |
| prediction of body composition of live and post-mortem red foxes. | a series of measurements (lengths, circumferences, skinfolds, masses and resistance) was taken on 29 red foxes (vulpes vulpes) of both sexes before and after their death during the autumns of 1994 and 1995. body composition of each carcass was determined by chemical analysis of homogenized samples of viscera, carcass and skin. eight multiple regression models were then developed to predict body water, fat, protein, and mineral mass using body measurements as independent variables taken on live o ... | 1999 | 10231742 |
| [the coat color mutation in silver foxes (vulpes vulpes): morphology of guard hairs]. | the structure of guard hairs was analyzed in the mottling mutants of silver foxes. the mottling mutation occurred in the population of silver foxes which has been subjected to domestication. hairs from the mottling areas were shown to have the following distinctions from silvery-black hairs: the lack of clear grana-shaft separation, a lesser thickness and length, another shape and pattern of guard-hair scales, another thickness ratio between cortical and medullar layers, a lesser number of melan ... | 1999 | 10576059 |
| genetic parameters of coat colour in golden fox (vulpes vulpes l.). | genetic parameters (heritability, genetic and phenotypic correlations) of chosen coat colour traits of golden fox were estimated. 1013 animals, born on the sniaty fox farm (poland) in 1985-1999 were evaluated. in 1993-1999 colour type was additionally assessed for 833 animals, by detailed evaluation of coat colour on the back and sides of the body, throat colour, belly colour and the amount of silver hair. the reml method was used to estimate genetic (co)variance components. data were transforme ... | 2000 | 14564073 |
| [genome multiplication in the trophoblasts and glandular epithelium of endometrium during embryo implantation and placentation of silver fox]. | dynamics of genome multiplication during establishment of interrelations between the trophoblast and the glandular epithelium of endometrium was studied in the course of placenta formation in the silver fox. endometrium response on the embryo implantation exhibits some features of inflammation. in the course of placenta formation the trophoblast gains access to the endometrial glandular epithelium zone, while the endometrial blood vessels grow the other way into the expanding trophoblast zone. t ... | 2000 | 11077681 |
| how can we use the red fox as a bioindicator of organochlorines? | the exposure of red foxes to hexachlorobenzene (hcb), dichlorodiphenyltrichloroethan (ddt), ddt derivatives, and polychlorinated biphenyls (pcbs) in central italy was determined by analyzing muscle and adipose tissue samples from 57 red foxes collected in 1992-1993 in three areas of tuscany, each characterized by different levels of anthropization. chemical analysis showed that hcb occurred in low concentrations, ranging from an average of 0.08 microg/g lipid basis in fat of foxes from pisa, the ... | 2000 | 11031317 |
| reproductive management of silver foxes (vulpes vulpes) in captivity. | specific protocols need to be developed that take into consideration the requirements of silver foxes. this study was designed to investigate the reproduction of 26 pairs of silver foxes (vulpes vulpes). reproduction parameters (breeding season, age at puberty, fecundity and fertility) of the foxes were examined under experimental conditions, and new techniques to optimize fox breeding were assessed. staining of the vaginal smears with the double harris-schorr stain allowed for the precise detec ... | 2000 | 10968417 |
| flexible spatial organization of urban foxes, vulpes vulpes, before and during an outbreak of sarcoptic mange. | the social and spatial organization of urban fox groups prior to and during an outbreak of sarcoptic mange was compared with predictions derived from the resource dispersion hypothesis (rdh). we investigated the availability of three key resources. neither daytime rest sites nor breeding sites appeared to be limited in availability. the availability of food deliberately supplied by local householders was examined by questionnaire surveys. the daily and weekly amount of food supplied was greatly ... | 2000 | 10640375 |
| failure to identify alveolar echinococcosis in trappers from south dakota in spite of high prevalence of echinococcus multilocularis in wild canids. | echinococcus multilocularis causes a rare but potentially lethal zoonotic disease in humans. this tapeworm has been known to be endemic in foxes (vulpes vulpes) and coyotes (canis latrans) within the northern united states since the 1960s. one purpose of this study was to provide recent data on the prevalence of e. multilocularis in foxes and coyotes from eastern south dakota. in a survey conducted from 1987 to 1991 and involving 137 foxes and 9 coyotes from this area, 74.5% of the foxes and 4 o ... | 2000 | 10701567 |
| detection of echinococcus granulosus coproantigens in australian canids with natural or experimental infection. | coproparasitological and purging methods for diagnosing canids infected with the intestinal helminth echinococcus granulosus, an important zoonotic parasite, are unreliable. detection of coproantigens in feces of infected dogs by enzyme-linked immunosorbent assay (elisa) is suitable for detecting patent and prepatent infections with a high degree of sensitivity and specificity. in the present study, natural and experimental infections in domestic and wild australian canids were investigated usin ... | 2000 | 10701577 |
| screening for infection of trichinella in red fox (vulpes vulpes) in denmark. | a total of 6141 foxes (vulpes vulpes) were examined for infection with trichinella. the foxes were killed in denmark during the hunting season 1995-1996 and 1997-1998; 3133 and 3008, respectively. foxes included in the investigation came from throughout the country with the exception of the island of bornholm. the right foreleg from each fox was submitted for investigation. the legs were stored at -20 degrees c for 3-10 months prior to examination. following thawing, muscle tissue (10 g) from ea ... | 2000 | 10714460 |
| two taenia species found in japan, with new distribution record of taenia polyacantha leuckart, 1856 (cestoda: taeniidae). | in an epidemiological survey for echinococcus multilocularis in rodents and insectivores from the northernmost part of the central mainland of japan (honshu), two taeniid species, taenia crassiceps and taenia polyacantha, were found in microtus montebelli and apodemus argenteus, respectively. the latter is the first record of distribution in japan, and the former is the second after its first recovery from the central part of japan. although we have found neither larval nor strobilar stage of e. ... | 2000 | 10725694 |
| high prevalence of echinococcus multilocularis in urban red foxes (vulpes vulpes) and voles (arvicola terrestris) in the city of zürich, switzerland. | over a period of 26 months from january 1996 to february 1998, 388 foxes from the city of zürich, switzerland, were examined for intestinal infections with echinococcus multilocularis and other helminths. the prevalence of e. multilocularis in foxes sampled during winter increased significantly from 47% in the urban to 67% in the adjacent recreational area, whereas prevalence rates of other helminths were similar in both areas. seasonal differences in the prevalence of e. multilocularis were onl ... | 2000 | 10726275 |
| [epidemiology of alveolar hydatid disease (ahd) and estimation of infected period of ahd in rebun island, hokkaido]. | an epidemiological study was performed of endemic alveolar hydatid disease (ahd, multilocular echinococcosis), rebun island, hokkaido and the period of ahd infection of patients was estimated. death certificates of the residents of the island were analyzed, and 74 deaths (43 males and 31 females) by ahd were found out of the 3,126 deaths that occurred during the period from 1948 to 1990. the red fox population of the island was estimated on the basis of past researchs. the deaths due to ahd dist ... | 2000 | 10734729 |
| influence of a natural stressor (predator odor) on locomotor activity in the meadow vole (microtus pennsylvanicus): modulation by sex, reproductive condition and gonadal hormones. | sex differences in a variety of non-reproductive behaviors have been indicated to occur in seasonally breeding polygynous promiscuous rodents such as the meadow vole, microtus pennsylvanicus. the present study was designed to assess the effects of reproductive and hormonal status on the locomotor responses of meadow voles following brief exposure to the odors of a natural predator, the red fox (vulpes vulpes). adult male and female meadow voles, which are seasonal photoperiodically-induced breed ... | 2000 | 10737697 |
| chromosome identification and assignment of dna clones in the dog using a red fox and dog comparative map. | we have developed a novel method for identifying dog chromosomes and unambiguously mapping specific clones onto canine chromosomes. this method uses a previously established red fox/dog comparative chromosome map to guide the fish mapping of cloned canine dna. mixing metaphase preparations of the red fox and dog enabled a single hybridization to be performed on both species. we used this approach to map the chromosomal locations of twenty-six canine cosmids. each cosmid contains highly polymorph ... | 2000 | 10780697 |
| invading parasites cause a structural shift in red fox dynamics. | the influence of parasites on host life histories and populations is pronounced. among several diseases affecting animal populations throughout the world, sarcoptic mange has influenced many carnivore populations dramatically and during the latest epizootic in fennoscandia reduced the abundance of red fox by over 70%. while the numerical responses of red fox populations, their prey and their competitors as well as clinical implications are well known, knowledge of how sarcoptic mange affects the ... | 2000 | 10819147 |
| circadian modulation of fos responses to odor of the red fox, a rodent predator, in the rat olfactory system. | we have previously shown that neuronal responses to a biologically neutral odor, cedar wood oil, in the olfactory system are greater in the subjective night compared to subjective day. in the present study, we confirm these results and extend them to a biologically relevant odor, the urine of the red fox, a rodent predator. fos induced by exposure of rats to fox urine or a neutral odor, mineral oil, was markedly enhanced during the subjective night compared to subjective day in the main olfactor ... | 2000 | 10825502 |
| a comparative chromosome map of the arctic fox, red fox and dog defined by chromosome painting and high resolution g-banding. | a complete set of paint probes, with each probe specific for a single type of dog chromosome, was generated by dop-pcr amplification of flow-sorted chromosomes. these probes have been assigned to high-resolution g-banded chromosomes of the dog and arctic fox by fluorescence in-situ hybridization. on the basis of these results we propose improved nomenclature for the g-banded karyotypes of the dog and artic fox. a comparative map between the arctic fox, red fox and dog has been established based ... | 2000 | 10841053 |
| [molecular phylogeny of canidae using mitochondrial cytochrome b dna sequences]. | 372 bp mitochondrial cytochrome b dna of blue fox, red fox, raccoon dog, and wolf were sequenced. combined with the dna fragments of dog, simien fox, and african wild dog, sequences were aligned and analyzed. there are 113 nucleotide sites substituted (30%). molecular phylogenetic tree constructed by nj method suggests that african wild dog is the earliest divergent. wolf, dog, and simien fox which belong to genus canis are combined into one branch which diverged earlier than raccoon dog, red fo ... | 2000 | 10883533 |
| diagnosis of canine echinococcosis: comparison of coproantigen detection with necropsy in stray dogs and red foxes from northern jordan. | the sandwich enzyme linked immunosorbent assay (elisa) was used as a diagnostic test for echinococcus granulosus infection by detecting coproantigens in 94 stray dogs canis familiaris and eight red foxes (vulpes vulpes) from northern jordan. the results were analyzed in relation to actual helminth infection as revealed by necropsy. the infection rate of dogs with e. granulosus was 13.8% with a worm load ranging between 3-> 10,000 per infected dog. in contrast, eight of 13 e. granulosus infected ... | 2000 | 10887653 |
| identification of a premature stop codon in the melanocyte-stimulating hormone receptor gene (mc1r) in labrador and golden retrievers with yellow coat colour. | we have examined whether black/yellow coat colour in labrador retrievers is controlled by allelic variants at the extension locus. as the gene encoding the melanocyte-stimulating hormone receptor (mc1r) has been shown to correspond to the extension locus in several species, we have determined the genomic mc1r sequence in labrador retrievers with black and with yellow coat colour. using primers based on the fox (vulpes vulpes) mc1r sequence we initially isolated and sequenced the innerpart of the ... | 2000 | 10895310 |
| neosporosis. aspects of epidemiology and host immune response. | neospora caninum is a recently recognized protozoan parasite which has been described as causing a neuromuscular paralysis in dogs and is emerging as a major cause of bovine infertility and abortion worldwide. the parasite is known to infect a range of warm blooded animals but the disease predominates in dogs and cattle. it is not yet known if n. caninum can infect and cause disease in people. the dog has recently been identified as the definitive host and the parasite may be transmitted through ... | 2000 | 11193706 |
| sylvatic trichinellosis in southwestern spain. | the epidemiology of trichinella spp. in their main sylvatic hosts, wild boar (sus scrofa ferus and red fox (vulpes vulpes), in extremadura (southwestern spain) was studied. we examined 88 trichinella spp.-positive wild boar muscle-tissue samples from a total of 29,333 killed animals, referred to the veterinary parasitology department (university of extremadura, spain) by the extremadura veterinary service. additionally, 227 red foxes killed during the hunting season and thus not subject to veter ... | 2000 | 10941739 |
| primary structure of fox (vulpes vulpes) proinsulin based on sequence studies of pancreatic peptides and cdna. | insulin and c-peptide were extracted and purified from fox (vulpes vulpes) pancreas using gel filtration, ion-exchange chromatography and hplc. chromatographic data for the insulin, as well as for its oxidized and carboxymethylated chains proved it to be identical to that of polar fox (alopex lagopus) and dog. the sequence analysis of a peptide which was assumed to be the corresponding c-peptide revealed that it comprises 23 amino acid residues and is identical to the c-peptide fragment isolated ... | 2000 | 10969870 |
| a parasitological survey of wild red foxes (vulpes vulpes) from the province of guadalajara, spain. | an epizootiological survey of leishmaniosis, coccidiosis and parasitic helminths in 67 foxes (vulpes vulpes) was conducted in guadalajara (central spain). examination for parasitic protozoa revealed prevalences of 74% leishmania (determined by molecular methods) and 2.9% coccidia oocysts (fecal flotation). survey of parasitic helminths (fecal flotation/necropsy) demonstrated the presence of nine species, including six nematodes, two cestodes and one trematode. nematodes were the most common para ... | 2000 | 10996735 |
| reciprocal chromosome painting illuminates the history of genome evolution of the domestic cat, dog and human. | domestic cats and dogs are important companion animals and model animals in biomedical research. the cat has a highly conserved karyotype, closely resembling the ancestral karyotype of mammals, while the dog has one of the most extensively rearranged mammalian karyotypes investigated so far. we have constructed the first detailed comparative chromosome map of the domestic dog and cat by reciprocal chromosome painting. dog paints specific for the 38 autosomes and the x chromosomes delineated 68 c ... | 2000 | 10997780 |
| serological investigations of red foxes (vulpes vulpes l.) for determination of the spread of tick-borne encephalitis in northrhine-westphalia. | serum samples from 786 red foxes shot between january 1995 and august 1996 in the southern half of northrhine-westphalia, located in western germany, were tested for the presence of antibodies against tick-borne encephalitis (tbe) virus using the immunozym fsme igg all species-elisa (immuno, heidelberg, germany) as a screening test: 759 sera were negative, 23 (2.9%) were borderline, and four (0.5%) were positive. nine of the 27 elisa reactive sera were confirmed by the tbe western-blot (immuno, ... | 2000 | 11048431 |
| an epidemiological and ecological study of human alveolar echinococcosis transmission in south gansu, china. | human alveolar echinococcosis (ae) is usually a rare, highly pathogenic zoonotic disease, transmitted across the northern hemisphere between fox and rodent hosts. in china the first cases were described in 1965; however very few epidemiological studies have been undertaken since. following identification in 1991 of a serious focus of human ae in south gansu province, detailed village-based community and ecological studies were carried out between 1994 and 1997. hepatic ultrasound mass screening ... | 2000 | 11080507 |
| evidence of puumala hantavirus infection in red foxes (vulpes vulpes) in belgium. | 2000 | 11083049 | |
| host association and seasonal activity of amblyomma americanum (acari: ixodidae) in missouri. | from june 1993 through june 1996, 2,260 adult, 4,426 nymphal, and 2,178 larval lone star ticks amblyomma americanum (l.) were collected in missouri from vertebrate hosts and by dragging a cloth over vegetation. prevalence, mean intensity, and relative abundance of each stage varied among hosts. the relative abundance of adult lone star ticks was highest on white-tailed deer, but this stage was also collected from raccoons, opossum, red fox, coyotes, and wild turkey. nymphs were collected from gr ... | 2000 | 11128501 |
| [distribution of opisthorchiid liver flukes in red foxes (vulpes vulpes) in western brandenburg]. | 226 (= 43.9%) out of 515 red foxes originating from the western districts of the federal state brandenburg were positive for opisthorchiid flukes. metorchis bilis, opisthorchis felineus and pseudamphistomum truncatum occurred in prevalences of 36.9, 8.9 and 0.2% respectively. although low fluke burden were predominant the maximum number of each fluke species isolated was 419, 46, and 78 respectively. no clear relations were found between the liver fluke prevalence and the proportion of surface w ... | 2000 | 11153218 |
| milk intake in blue fox (alopex lagopus) and silver fox (vulpes vulpes) cubs in the early suckling period. | milk intake of fox cubs (2-16 days of age; body weight, 96-649 g) in ten blue fox litters and ten silver fox litters were measured by the water isotope dilution (wid) technique following a single intraperitoneal injection of tritiated water (3hho). litter size varied from four to 14 in blue foxes and from three to eight in silver foxes. silver fox cubs had higher birth weights than blue foxes. inter-species body weights and growth rates were apparently dependent on litter size and the dam's cons ... | 2000 | 11064289 |
| preference for various nest box designs in farmed silver foxes (vulpes vulpes) and blue foxes (alopex lagopus). | nest box choice experiments were carried out outside the breeding season on adult silver and blue fox vixens with no previous permanent nest box experience. nest boxes were varied in height of placement, number of rooms, presence of entrance room or platform and light conditions. only one parameter was varied in any one experiment. both fox species clearly preferred an elevated multi-room nest box; while silver foxes showed preference for boxes supplied with a platform, blue foxes preferred boxe ... | 2000 | 10719195 |
| communication ecology of webbing clothes moth: 1. semiochemical-mediated location and suitability of larval habitat. | we tested two hypotheses: 1) that there is semiochemical-mediated attraction of male and female webbing clothes moth (wcm), tineola bisselliella (hum.) (lepidoptera: tineidae) to suitable larval habitat; and 2) that selection of optimal larval habitat has fitness consequences. in binary or ternary choice arena bioassay experiments that prevented wcm from contacting test stimuli, males and females were attracted to dried but untanned animal pelts (red squirrel, muskrat, beaver, coyote, red fox an ... | 2001 | 11521394 |
| humoral and cell-mediated immune responses of foxes (vulpes vulpes) after experimental primary and secondary oral vaccination using sag2 and v-rg vaccines. | humoral and cell-mediated immune responses of 36 captive foxes to two oral vaccines against rabies currently used for foxes in europe were studied. the street alabama dufferin (sad) mutant gif (sag2) vaccine has been selected by double mutation from the sad virus. the vaccinia recombinant virus (v-rg) expresses the rabies glycoprotein. both vaccines induce similar humoral and cell-mediated responses after primary and secondary oral administration. we observed a typical anamnestic response, altho ... | 2001 | 11166908 |
| [hantavirus infection epidemiology in belgium]. | in europe, puumala (puu) is a hantavirus responsible for a human disease called nephropathia epidemica and its natural reservoir is the red bank vole, (clethrionomys glareolus). although the population densities and the prevalence rates of infection were high in red bank voles in southern belgium during the 1996 and 1999 epidemic years, the percentages of infected rodents were low in 1997 and 1998, when only a few positive sites were found. antibodies against puu virus were mainly detected in th ... | 2001 | 11697188 |
| seroprevalences of toxoplasma gondii and neospora caninum in swedish red foxes (vulpes vulpes). | the prevalences of antibodies to the protozoan parasites toxoplasma gondii and neospora caninum were investigated by the direct agglutination test (dat) and elisa, respectively, in 221 red foxes (vulpes vulpes) from different parts of sweden. a total of 84 (38%) of the analysed sera had antibodies to t. gondii, but none of the foxes had antibodies to n. caninum. the results indicate that t. gondii infection is fairly common in swedish red foxes and that the infection is present in most parts of ... | 2001 | 11705663 |
| is it possible to orally vaccinate juvenile red foxes against rabies in spring campaigns? | the rabies antibody status of juvenile foxes (vulpes vulpes) was evaluated in large-scale, long-term oral vaccination campaigns. between 9% (n = 659) and 21% (n = 42) of the juvenile foxes examined in 1993-94 and 1997, respectively, showed rabies virus neutralizing antibody (nab)-titers > or = 0.5 iu/ml following bait distribution in spring. the presence of nab may be due to either the passive transfer of maternal antibodies, or active immunization derived from spring vaccination campaigns. the ... | 2001 | 11765716 |
| red foxes (vulpes vulpes) in ireland as hosts for parasites of potential zoonotic and veterinary significance. | intestinal washes, faecal flotations and serological examinations for antibodies to toxoplasma gondii and neospora caninum were used to assess the prevalence of parasites in carcases of foxes killed on roads or shot in the dublin area and surrounding counties. the ascarids uncinaria stenocephala and toxocara canis were prevalent, as was the trematode alaria alata. taenia species, eggs of capillaria species and sporocysts of sarcocystis species were also found. only one fox out of 70 examined was ... | 2001 | 11808662 |
| a field study to control echinococcus multilocularis-infections of the red fox (vulpes vulpes) in an endemic focus. | foxes harbouring e. multilocularis represent an important source for human infection with this parasite which causes alveolar echinococcosis. to minimize the risk of human infection, a control study was conducted to reduce the prevalence of e. multilocularis-infection in foxes in an focal endemic area of 5000 km2. foxes were given access to baits containing 50 mg praziquantel. twenty baits per km2 were distributed by airplane during 14 campaigns. the effects of control measures were monitored by ... | 2001 | 11811893 |
| bait-delivered cabergoline for the reproductive control of the red fox (vulpes vulpes): estimating mammalian non-target risk in south-eastern australia. | cabergoline (cab) is a potent dopamine agonist and an inhibitor of prolactin (prl). in red foxes (vulpes vulpes), a single oral dose of 100 microg kg(-1) cab can cause abortions and postnatal cub mortality from at least day 21 of the 52-day pregnancy. the abortifacient activity of cab is owing to the suppression of prl, which is essential for luteotrophic support in some eutherian species. postnatal cub mortality probably results from a reduction in the development of the mammary ductile system, ... | 2001 | 11999299 |
| effectiveness of cabergoline for termination of pregnancy in silver fox (vulpes vulpes fulva). | red foxes (vulpes vulpes) are a major pest species in europe and australia. traditional methods of control such as hunting or poisoning are no longer sufficient or feasible. as with domestic dogs and cats, prolactin (prl) in the vixen is an essential luteotropin during the second half of gestation. hence, prl inhibitors such as cabergoline have been used to induce abortions. eighteen mated silver fox vixens (three groups of six foxes each) were treated orally with a placebo of paraffin oil (i), ... | 2001 | 11885743 |
| comparison of the nuclear organiser region activity in four taxa of the family canidae. | four species of the family canidae were cytogenetically studied. the activity of nors was detected with the use of silver staining. the number of nors was characteristic for a given karyotype. for the dog found on autosomes 7, 17, 20 and on sex chromosome (y), for the racoon dog on autosomes 1, 4, 13 and on sex chromosome (y), for the silver fox only on autosomes 8, 9, 13 and for the blue fox on autosomes 13, 15, 17, 18, 20 and 22. the results demonstrate that nor activity is similar in all the ... | 2001 | 14564024 |
| distemper vaccination of farmed fur animals in finland. | the most important farmed fur animal species in finland are the american mink (mustela vison), blue fox (alopex lagopus), silver fox (vulpes vulpes) and raccoon dog (nyctereutes procyonoides); all are susceptible to canine distemper. the only distemper vaccines currently available are for mink, although they also have been used for fox and raccoon dogs in emergency situations. the efficacy in eliciting neutralizing antibodies and the safety of three mink-distemper vaccines were studied under fie ... | 2001 | 11267694 |
| elimination of rabies from red foxes in eastern ontario. | the province of ontario (canada) reported more laboratory confirmed rabid animals than any other state or province in canada or the usa from 1958-91, with the exception of 1960-62. more than 95% of those cases occurred in the southern 10% of ontario (approximately 100,000 km2), the region with the highest human population density and greatest agricultural activity. rabies posed an expensive threat to human health and significant costs to the agricultural economy. the rabies variant originated in ... | 2001 | 11272485 |
| bovine tuberculosis in free-ranging carnivores from michigan. | during a survey of carnivores and omnivores for bovine tuberculosis conducted in michigan (usa) since 1996, mycobacterium bovis was cultured from lymph nodes pooled from six coyotes (canis latrans) (four adult female, two adult male), two adult male raccoons (procyon lotor), one adult male red fox (vulpes vulpes), and one 1.5-yr-old male black bear (ursus americanus). one adult, male bobcat (felis rufus) with histologic lesions suggestive of tuberculosis was negative on culture but positive for ... | 2001 | 11272505 |
| serological evidence for naturally occurring transmission of neospora caninum among foxes (vulpes vulpes). | the study describes the time course of the neospora caninum-specific antibody response in experimentally infected foxes, in naturally n. caninum-seropositive vixens and their litters. an immunofluorescence test, a tachyzoite surface antigen based elisa and an immunoblot assay were established for this purpose. the immunoblot patterns of naturally seropositive and experimentally infected foxes revealed a high degree of similarity and resembled those reported for other intermediate host species. r ... | 2001 | 11306121 |
| theobromine intoxication in a red fox and a european badger in sweden. | a red fox (vulpes vulpes) and a european badger (meles meles) were found dead on a golf-course in october 1997 near stockholm (sweden). at necropsy, both animals were obese and the main finding was acute circulatory collapse. theobromine intoxication was suspected as chocolate waste was available at a nearby farm and no other cause of death could be detected. gastric contents and samples of liver from both animals were analyzed by reversed-phase high pressure liquid chromatography for the presen ... | 2001 | 11310889 |
| echinococcus multilocularis in carnivores from the klatovy district of the czech republic. | a unique human case of alveolar echinococcosis was described in 1979 from the klatovy district of the czech republic. however, there were no previous epidemiological studies in this area focusing on detection of the source of infection--echinococcus multilocularis adults producing eggs. during the period june 1997 to april 1999, 29 out of a total of 46 (63.3%) red foxes (vulpes vulpes) in the klatovy district and one of four foxes (25.0%) in the pilsen south district were found to be infected wi ... | 2001 | 11345074 |
| immunogenicity and efficacy of the oral rabies vaccine sad b19 in foxes. | studies on the immunogenicity and efficacy of sad b19 attenuated rabies virus vaccine in foxes under laboratory conditions were conducted. twenty-seven foxes (vulpes vulpes) were offered a vaccine bait containing 10(6.3) ffu/ml sad b19. blood samples were collected 60, 110 and 190 days post-vaccination. on day 190 post vaccination the animals and 14 controls were challenged with a canid street rabies virus. twenty-four of the 26 vaccinated foxes (92.3%) survived the challenge, whereas all the co ... | 2001 | 11393813 |
| isolation of pathogenic yersiniae from wild animals in bulgaria. | pathogenic yersinia strains were isolated between december 1998 and april 1999 from 37 wild animals: rabbit (lepus europeus), boar (sus scrofa scrofa), asiatic jackal (canis aureus), red fox (vulpes vulpes), mouflon (ovis musimon), european river otter (lutra lutra), beech marten (martes foina), polecat (musleta putorius) and wild cat (felis silvestris). it was established that among the wild animals y. enterocolitica strains of serotype 0:3 predominated, accompanied by y. pseudotuberculosis str ... | 2001 | 11393816 |
| [increase in the prevalence of echinococcus multilocularis infection in red foxes in lower saxony]. | echinococcus multilocularis is a tapeworm having carnivores as final hosts, the red fox in particular, dog and cat less frequent. its two host life cycle consists of a larval cycle which predominantly takes place in the liver of rodents such as mice but it can also develop in musk rats as intermediate hosts. man can also be infected and serves as a wrong intermediate host. he develops an alveolar echinococcosis which usually ends lethal without medical treatment. the prevalence of e. multilocula ... | 2001 | 11417378 |
| control of red fox (vulpes vulpes) fertility with cabergoline: dose response and timing of intervention. | cabergoline, a potent dopamine agonist and inhibitor of prolactin secretion, was investigated as a potential fertility control agent in the red fox ( vulpes vulpes). sixty silver fox vixens were selected randomly and artificially inseminated. cabergoline was fed to groups of 12 vixens in a minced beef ration either as a single dose of 25, 50 or 100 microg kg(-1), or a dose of 50 microg kg(-1) that was repeated 2 days later (2 x 50 microg kg(-1)). four foxes from each group of 12 were given caber ... | 2001 | 11425339 |
| phylogenetic implications of the 38 putative ancestral chromosome segments for four canid species. | chromosome homologies between the japanese raccoon dog (nectereutes procyonoides viverrinus, 2n = 39 + 2-4 b chromosomes) and domestic dog (canis familiaris, 2n = 78) have been established by hybridizing a complete set of canine paint probes onto high-resolution g-banded chromosomes of the raccoon dog. dog chromosomes 1, 13, and 19 each correspond to two raccoon dog chromosome segments, while the remaining 35 dog autosomes each correspond to a single segment. in total, 38 dog autosome paints rev ... | 2001 | 11435696 |
| first report of trichinella nativa in red foxes (vulpes vulpes schrencki) from otaru city, hokkaido, japan. | forty-three red foxes (vulpes vulpes schrencki) and nine raccoon dogs (nyctereutes procyonoides viverrinus) were captured in otaru city, hokkaido, japan and examined by muscle digestion for the presence of trichinella sp. larvae. of the foxes, five (11.6%) were positive for larvae of trichinella nativa while none of the raccoon dogs were found to be positive. this finding suggests that the red foxes are important reservoir hosts of sylvatic trichinellosis in otaru, hokkaido. this is the first re ... | 2001 | 11438434 |