Publications

TitleAbstractYear
Filter
PMID
Filter
skin acariasis caused by dermanyssus gallinae (de geer): an in-hospital outbreak. 1979436052
[the mite dermanyssus gallinae]. 1978625361
[study of dermanyssus gallinae as a carrier of pasteurella multocida].microbiologic studies and biologic experiments revealed that pasteurella multocida persists in the body of dermanyssus gallinae mites after these engorge with blood from infected birds. depending on the temperature of the environment the carrier status was shown to last from 42 to 64 days. it is reported that the red mite acts as a vector and does not transmit pasteurellae directly. however, the parasite is potentially hazardous in maintaining and passing on the infection through other indirect ...19751210004
a survey of mites on farm animals in libya.in 1985-1988, 2287 farm animals (cattle, camels, sheep, goats, horses, donkeys, dogs and rabbits) suspected of carrying parasitic mites were examined at 58 farms throughout libya. mites were identified on 1303 of these animals. the commonest parasites on cattle were psoroptes and chorioptes, on camels and sheep were sarcoptes and psoroptes, and on goats were sarcoptes and demodex. infested horses carrier psoroptes or chorioptes, and one donkey carried sarcoptes. otodectes was common on dogs, but ...19921288436
louse and mite infestation in domestic animals in northern nigeria.records of domestic animals brought to the veterinary entomology laboratory for diagnosis of suspected lice and mite infestation over a 10 year period were analysed. from a total of 794 suspected cases, 137 (17.3%) and 247 (31.1%) were positive for lice and mange mites respectively. the most common lice species recorded were linognathus vituli (66.7%) on cattle, l. ovillus (83.3%) on sheep, haematopinus suis (100%) on pigs and menacanthus stramineus (54.5%) on poultry. other lice species recorde ...19921305335
temperature influence on life table statistics of the chicken mite dermanyssus gallinae (acari: dermanyssidae).an age-specific life table for the chicken mite dermanyssus gallinae (degeer, 1778) was based on various observations carried out at 25 degrees c. the generation time was calculated to be 16.8 days; the intrinsic rate of natural increase was 0.12 per day, and the net reproductive rate was 7.2. a nonlinear function was found satisfactory to describe the developmental rate of the different immature life-stages at temperatures below 40 degrees c. the stage-specific survival of the immature life-sta ...19921511637
mechanical transmission of venezuelan equine encephalomyelitis virus by hematophagous mites (acari).studies were undertaken to determine whether two species of hematophagous mites could transmit venezuelan equine encephalomyelitis (vee) virus to suckling mice. the chicken mite, dermanyssus gallinae (de geer), mechanically transmitted this virus to previously uninfected mice up to 16 h after taking a blood meal from a viremic animal. in contrast, laelaps kochi oudemans failed to transmit virus to mice in any feeding trials. virus did not replicate in either species of mite but was detected in 2 ...19921552519
susceptibilities of northern fowl mite, ornithonyssus sylviarum (acarina: macronyssidae), and chicken mite, dermanyssus gallinae (acarina: dermanyssidae), to selected acaricides.the relative toxicities of ten acaricides to northern fowl mite, ornithonyssus sylviarum (canestrini and fanzago), and the chicken mite, dermanyssus gallinae (de geer), were determined simultaneously by holding the mites inside disposable glass pasteur pipettes previously immersed in acetone solutions of various concentrations (w/v) of technical grade acaricides. the lc90s (parts per million) of the acaricides after 24 h exposure for the northern fowl mite and the chicken mite, respectively, wer ...19911786744
toxicity of certain pesticides against the chicken mite, dermanyssus gallinae. 19902132965
susceptibility of ornithodoros parkeri (cooley) (acari: argasidae) and dermanyssus gallinae (degeer) (acari: dermanyssidae) to ivermectin.ivermectin was injected into hosts and evaluated for effectiveness against the argasid tick ornithodoros parkeri (cooley) and the chicken mite dermanyssus gallinae (degeer). o. parkeri second stage nymphs (n2s) showed a marked increase in mortality when fed on mice injected intraperitoneally with ivermectin at a dose between 0.1 and 0.2 mg/kg host body weight. for adult o. parkeri and d. gallinae, 0.4 and 0.5 mg, respectively, per kilogram of host body weight were necessary for an increase in mo ...19892724309
spermiogenesis and reproductive biology of dermanyssus gallinae (degeer) (parasitiformes: dermanyssidae). 19883193424
ectoparasites of guinea fowl (numida meleagris galeata pallas) and local domestic chicken (gallus gallus) in southern guinea savanna, nigeria.the ectoparasites of poultry in a southern guinea savanna zone were investigated by the examination of guinea fowl and local domestic chickens in the range and guinea fowl under intensive management. the prevalent ectoparasites of range guinea fowl and local chickens include seven species of lice menacanthus stramineus, menopon gallinae, goniodes gigas, goniocotes gallinae, lipeurus caponis, numidilipeurus tropicalis, damalinia bovis; three mites bdellonyssus bursa, megninia cubitalis, dermanyss ...19883195043
surface skin lipids of birds--a proper host kairomone and feeding inducer in the poultry red mite, dermanyssus gallinae.a factor in bird skin responsible for d. gallinae feeding on its natural hosts was investigated. both skin and plumage of chickens contained substance(s) attractive to mites which was easily dissolved in benzene derivates, amyl acetate or ethyl acetate, thermostabile up to 100 degrees c, nonvolatile, alkaline hydrolysable, and susceptible to oxidation. components of surface skin lipids were ascertained to be the host-markers when using chromatographic separation and consecutive in vitro feeding ...19883197578
systemic efficacy of ivermectin against dermanyssus gallinae (de geer, 1778) in fowls.the efficacy of ivermectin on females of a laboratory strain of dermanyssus gallinae was tested. ivermectin produced a noticeable systemic effect on the mites when inoculated intra-abdominally into infested chickens at rates greater than 0.6 mg kg-1. the concentrations efficacious against d. gallinae (1.8-5.4 mg kg-1) were unfavourably close to those causing toxicity in experimental birds (greater than or equal to 5.4 mg kg-1). ivermectin administered at 5.4 mg kg-1 was active for 70 h post inoc ...19873564341
use of flumethrin for the control of dermanyssus gallinae in a broiler breeder flock. 19873579754
effects of gamma radiation on development, sterility, fecundity, and sex ratio of dermanyssus gallinae (degeer) (acari: dermanyssidae).protonymphal dermanyssus gallinae were irradiated with 0.50, 0.75, 1.0, 3.0, and 6.0 krad of gamma radiation and subsequently monitored regarding their developmental, feeding, and mating success. also, sex ratios of adults treated as protonymphs were recorded as were sex ratios of embryos and f1 adults produced by these adults. doses up to 1.0 krad did not prevent development of treated protonymphs to the adult stage or stop mating. three krad reduced the number of treated protonymphs attaining ...19873598805
nosocomial dermatitis and pruritus caused by pigeon mite infestation.we report an outbreak of pigeon mite infestation involving two patients, two nurses, and one physician on a medical ward in a municipal hospital. the index patient developed a diffuse, pruritic erythematous maculopapular rash on his trunk and extremities. dermanyssus gallinae, a nonburrowing, blood-sucking avian mite was identified on the patient and his bedding. a second patient who complained of scalp pruritus had mites present on her pillow and bed linen. the intern taking care of both patien ...19873689070
evidence of a juvenile-hormone-like compound in the reproduction of dermanyssus gallinae (acari: dermanyssidae). 19853839266
sulphonamides for the experimental control of the poultry red mite dermanyssus gallinae (de geer, 1778). 19744843109
a case of a mass occurrence of the mite dermanyssus gallinae in town flats. 19715163223
[damaging effect and control of dermanyssus gallinae and parasitic feather loss in laying hens]. 19705534817
in vitro feeding of dermanyssus gallinae. 19715545020
[the tick dermanyssus gallinae--carrier of fowl spirochaetosis]. 19675630080
[a case of mass invasion of bird-ticks, dermanyssus gallinae (redi, 1674) (gamasoidea, dermanyssidae) in humans]. 19685691363
a trap perch for the control of the poultry red mite (dermanyssus gallinae). 19655890944
anaemia in poultry infested with the red mite dermanyssus gallinae. 19676034275
synganglial and neurosecretory morphology of the chicken mite dermanyssus gallinae (degeer) (mesostigmata: dermanyssidae).histological techniques and paraldehyde-fuchsin (paf) staining were used to study the synganglion and to locate neurosecretory regions and neurosecretion within the synganglion of the chicken mite, dermanyssus gallinae. the synganglion, which is formed internally by neuropilar ganglia, gives rise to a single esophageal and paired cheliceral, palpal, pedal (i-iv), and opisthosomal nerves. the neuropilar ganglia are interconnected by commissures and connectives within the synganglion. twelve paf-p ...19846471106
aggregation of the chicken mite, dermanyssus gallinae (acari: dermanyssidae). 19827154024
potential role of dermanyssus gallinae de geer, 1778 in the circulation of the agent of pullurosis-typhus in hens. 19827160791
[acariasis due to dermanyssus gallinae (gamosoidosis) in vienna (author's transl)].four cases of gamasoidosis (avian mite dermatitis) caused by dermanyssus gallinae (de geer 1778) were observed in a factory for optical instruments in vienna. after removal of an infected pigeon nest outside one of the windows in a recess of the wall in front of a fan, no further skin lesions appeared. the darkening of the room during work hours could explain the activity of the mites during day time. although gamasoidosis is mainly seen in rural areas, it is not infrequently encountered in urba ...19817222880
[problems arising from disease during the periods of breeding and rearing canaries and other aviary birds (author's transl)].the hygienic aspects of the various breeding systems are reviewed. the companion aviary is the least hygienic system; the birds are hardest to supervise in this case. breeding in pairs is preferable from either point of view. hygiene in aviaries is determined by all component parts of the cage, which are used in keeping the birds. the walls should be smooth and clean. the most hygienic drinking water supply is ensured by bottle-type nipple drinkers provided with a small ball. feeders should be e ...19807404568
a population model for dermanyssus gallinae (acari: dermanyssidae).a model based on a time-varying distributed delay with attrition was developed for simulating the population dynamics of the chicken mite dermanyssus gallinae (degeer, 1778). the model was parametrised according to cohort life table studies conducted under constant temperature conditions and was validated with two independent data set obtained in an experimental poultry house. the predicted mite densities and the stage-structure of the population corresponded to the values observed during experi ...19947628254
mites (acari) infesting commensal rats in suez canal zone, egypt.mites are arthropods distinguished from ticks by usually being microscopical in size and have a hypostome unarmed with tooth-like anchoring processes. they are group in a number of suborders, each with super-families and families including many genera of medical and economic importance. in this paper, commensal rodents (rattus norvegicus, r. r. alexandrinus and r. r. frugivorous) were surveyed in the suez canal zone for their acari ectoparasites. four species of mites were recovered. in a descen ...19957665937
phylogeny of hard- and soft-tick taxa (acari: ixodida) based on mitochondrial 16s rdna sequences.ticks are parasitiform mites that are obligate hematophagous ectoparasites of amphibians, reptiles, birds, and mammals. a phylogeny for tick families, subfamilies, and genera has been described based on morphological characters, life histories, and host associations. to test the existing phylogeny, we sequenced approximately 460 bp from the 3' end of the mitochondrial 16s rrna gene (rdna) in 36 hard- and soft-tick species; a mesostigmatid mite, dermanyssus gallinae, was used as an outgroup. phyl ...19947937832
inefficient mechanical transmission of langat (tick-borne encephalitis virus complex) virus by blood-feeding mites (acari) to laboratory mice.one day after feeding on a viremic mouse, tropical rat mites, ornithonyssus bacoti (hirst), transmitted langat (tick-borne encephalitis virus complex) virus to a naive suckling mouse in one of four trials. however, no transmissions to naive mice by o. bacoti were recorded either immediately after the viremic blood meal (0/4 trials) or on days 4-18 (0/20 trials). after feeding on a viremic mouse, chicken mites, dermanyssus gallinae (de geer), failed to transmit langat virus to naive suckling mice ...19938389878
laboratory transmission of eastern equine encephalomyelitis virus to chickens by chicken mites (acari: dermanyssidae).pools of adult female chicken mites, dermanyssus gallinae (de geer), were allowed to feed on chicks that had been inoculated with eastern equine encephalomyelitis (eee) virus and that had a viremia level of 10(6.2)-10(6.6) plaque-forming units per milliliter of blood. virus remained detectable by plaque assay in samples of these mites for 30 d after the infectious blood meal. virus was not recovered from any of 151 progeny of virus-exposed female mites. mites that had fed on viremic chicks were ...19938433339
prevalence of the poultry red mite, dermanyssus gallinae, in different types of production systems for egg layers in sweden.this study was undertaken between may and december 1994 to investigate the prevalence of hematophagous mites in sweden. a particular aim was to establish the relationship between occurrence of mites and certain types of production systems for egg layers. initially a postal questionnaire study was performed. some months later this was followed up by inspections, sampling, and interviews on farms. the only mite species found was the red poultry mite, dermanyssus gallinae. although this species was ...19958614688
ecdysteroid titers during postembryonic development of dermanyssus gallinae (acari: dermanyssidae).ecdysteroid titers in methanolic extracts of protonymphal and deutonymphal stages of the chicken mite, dermanyssus gallinae (de geer), were measured using radioimmunoassay. highest titers of ecdysteroids were present 24 h after feeding. further studies using high-performance liquid chromatography radioimmunoassay showed that ecdysteroid immunopositive material had the same retention time as 20-hydroxyecdysone and ecdysone. ecdysteroid conjugates appear to be present in polar and apolar fractions ...19968906899
immunohistopathological status of the skin in cases infested with three species of mites.this study was performed on eighty patients with clinical manifestations of scabies. sarcoptes scabiei adult or larva was isolated from 39 patients (48.8%). dermanyssus gallinae (red poultry mite) and dermatophagoides sp. were isolated from 6 and 5 patients respectively. punch biopsies were taken from the patients, stained with haematoxylin and eosin and direct immunofluorescence stain to study the immunopathological status of the skin infested with three species of mites. the results declared t ...19968918029
[animal mite-induced epizoonoses and their significance in dermatology].different mite species may infest humans temporarily; such arthropods should be considered a possible cause of pruritic skin reactions of unclear origin. pseudo-scabies is a common problem. this self-limiting dermatosis may often be misdiagnosed. several mite species including sarcoptes scabiei var. canis, sarcoptes scabiei var. bovis, notoedres cati, cheyletiella yasguri, cheyletiella blakei, dermanyssus gallinae and ophionyssus natricis may infest human skin, causing symptoms. other less commo ...19969036121
[parasitic pruritus: bird mite zoonosis].in three women with persistent pruritus, aged 49, 28 and 4 years, infestation with the bird or chicken mite (dermanyssus gallinae) was demonstrated. these mites live in narrow openings and cracks close to the bird housing during the daytime. at night they attack the birds on whose blood they live. when their host disappears, they may attack men, notably when their breeding places are in or near houses. mite bites result in urticarial and itchy papulovesicular skin eruptions. treatment of bird mi ...19969053746
occupational otitis externa in chicken catchers.otitis externa is only occasionally occupational in origin and infestations of the ear are even less common. two cases of occupational otitis externa due to infestation with dermanyssus gallinae, the red poultry mite, are reported occurring in poultry workers.19979176622
resistance of the red poultry mite to pyrethroids in france.the resistance of dermanyssus gallinae, the red poultry mite, to a pyrethroid acaricide, permethrin, and to an organophosphate, dichlorvos, was examined on five french poultry farms which had experienced problems in controlling mite populations and on one farm with no problems. the concentration of permethrin required to kill 50 per cent of the mites on the five farms was between eight and 40 times the concentration required on the control farm. in contrast, no resistance to dichlorvos was detec ...19979194299
health of laying hens in an aviary system over five batches of birds.mortality and health were studied in laying hens kept in an aviary system on a practical scale. all management inputs were done by university staff. five batches of birds (trials) during a period of 6 years with approximately 4,700 birds per trial were included in the study. the aviary was a three-tiered "marielund" system divided into 4 pens. three hybrids, reared on litter with access to perches, were used; lohmann selected leghorn (lsl), lohmann brown (lb) and an experimental cross (slu-1329) ...19989787500
the poultry red mite dermanyssus gallinae (de geer, 1778): current situation and future prospects for control.the current importance of dermanyssus gallinae, mainly in egg layer, in europe is pointed out. the limits of conventional control methods are underlined (development of mite resistance--future insecticide legislation and animal welfare legislation). alternative control methods such as feeding deterrents or biological control, are reviewed in the context of poultry pest management.19989823064
[farm animals as disease vectors of parasitic epizoonoses and zoophilic dermatophytes and their importance in dermatology].different pest arthropods and dermatophytes occurring primarily in farm animals may be transmissible to man and produce human dermatoses. the movement and cutaneous penetration habits of external parasites often cause crusted papules, severe itching and dermatitis or may damage their hosts by blood-sucking or by sensitizing them to their saliva. furthermore different dermatophytes should be considered a possible cause of human skin lesions. farm animals (cattle, pig, poultry, and rabbit) can tra ...199910501677
avian mite bites acquired from a new source--pet gerbils: report of 2 cases and review of the literature.cutaneous manifestations of avian mite bites are not well recognized by physicians or patients. clinical signs and symptoms are usually caused by bites from avian mites that have infested domestic poultry or birds nesting in or near human habitation. this report details 2 cases of pruritic papules acquired from avian mites that had infested pet gerbils and reviews the dermatologic literature about avian mites.200111176688
long term dynamics of dermanyssus gallinae in relation to mite control measures in aviary systems for layers.1. the dynamics of the poultry red mite, dermanyssus gallinae, in aviary systems for layers were studied in an empirical study in sweden between 1994 and 1997. fluctuations were monitored with mite traps at monthly intervals during 3 laying cycles at each of 2 commercial poultry farms. 2. when mites were first detected in the system it then took about 5 months for the populations to reach equilibrium levels around which they fluctuated. within flocks when the population growth was unaffected by ...200011201430
effect of permethrin impregnated plastic strips on dermanyssus gallinae in loose-housing systems for laying hens.the effect of permethrin impregnated plastic strips (die no mite strips) was evaluated on dermanyssus gallinae populations in aviary systems for layers in sweden. two application strategies of the strips were tested: (a) attached in the housing system, allowing the birds to rub against the strips and thereby get the acaricide released onto their plumage, and (b) attached out of reach of the hens, at two different sites (perches and egg-belt lids) of the inner surfaces of the system, where the mi ...200111705658
evaluation of a sampling trap for dermanyssus gallinae (acari: dermanyssidae).traps made by rectangular pieces of 3 mm thick corrugated cardboard of four different sizes, 200 by 140 (a), 140 by 100 (b), 100 by 70 (c), and 200 by 40 mm (d), were evaluated as a sampling device for the chicken mite, dermanyssus gallinae (de geer). mites were trapped during 2, 4, 6, 8, and 10 d, respectively, in a poultry house heavily infested with the parasite. significantly greater numbers of mites were collected by trap b. additionally, significantly more mites were collected during the s ...200111777073
first in vitro cycle of the chicken mite, dermanyssus gallinae (degeer 1778), utilizing an artificial feeding device.the red poultry mite, dermanyssus gallinae, is one of the most economically deleterious ecto-parasites of layer hens worldwide. d. gallinae is difficult to eliminate from infested poultry farms, and even to study, because it resides on the host only during the bloodmeal at night, and hides in the crevices of poultry houses during the day. here, the life-cycle of d. gallinae was reproduced entirely in vitro. mites were incubated in a glass pipette at 30 degrees c, 60-95 degrees relative humidity ...200111814045
[persistent scalp infestation by dermanyssus gallinae in an emilian country-woman].a case of persistent infestation of the scalp due to dermanyssus gallinae.--infestation due to dermanyssus gallinae, the common red mite of poultry, in a country-woman aged 69 years from crevalcore (emilia-romagna region, northern italy), is described. the case was unusual either for its location, the scalp, and for its persistence, 9 months. specimens of the mite were also found in the henhouse adjacent to the patient's house. apparently the woman recovered by means of daily washing of camomile ...200111921537
[structure of subepidermal tissue of gamasid mites (electron microscopy data)].fine structure of the subepidermal tissue was investigated in the adult predatory mite hypoaspis miles (gamasina: laelapidae) and bloodsucking mite dermanyssus gallinae (gamasinae: dermanyssidae) of both sexes. this tissue is analogous to the fat body of other arthropodes. the subepidermal tissue of females consists of two types of cells: cells containing a synthetic apparatus and secretory granules; cells containing storage substances. in the subepidermal tissue of h. miles, cells being similar ...200212325273
traps containing acaricides for the control of dermanyssus gallinae.in sweden, the poultry red mite, dermanyssus gallinae, is the only haematophagous mite of poultry. after obtaining a blood meal the parasite spends most of its life off the host aggregated in cracks and crevices where mating and reproduction occur. cardboard traps (1000 mm x 40 mm x 3 mm; 160 mm x 140 mm x 3 mm and 100 mm x 70 mm x 3 mm) containing 2% metriphonate were placed where mites gathered, out of reach of the hens, in two different types of multi-tiered floor systems for layers. in two s ...200212446095
activation of the poultry red mite, dermanyssus gallinae (acari: dermanyssidae), by increasing temperatures.the poultry red mite, dermanyssus gallinae, is a parasite of layers in europe. in order to improve our understanding of the host-searching behaviour of these mites their sensitivity to slowly increasing temperatures was studied under laboratory conditions. temperatures increasing as slowly as 0.005 degrees c/s (over a one min period) were effective in activating the mites. the speed of the temperature change is more important than the temperature change itself for this activation process. this k ...200112455876
dermatitis in humans associated with the mites pyemotes tritici, dermanyssus gallinae, ornithonyssus bacoti and androlaelaps casalis in israel.multiple erythematous papules accompanied by severe pruritus were observed in humans bitten by the mites (acari) pyemotes tritici (newport) (pyemotidae), dermanyssus gallinae (de geer) (dermanyssidae), ornithonyssus bacoti hirst (macronyssidae) and androlaelaps casalis (berlese) (laelapidae). eight case histories are presented and the impact of these species on human health is discussed.200212510897
the poultry red mite, dermanyssus gallinae, a potential vector of erysipelothrix rhusiopathiae causing erysipelas in hens.erysipelas is a bacterial disease caused by erysipelothrix rhusiopathiae, which may infect swine as well as several other species of mammals and birds, including domestic fowl. in poultry, erysipelas may cause sudden high mortality due to septicemia. this communication describes the first isolation of e. rhusiopathiae from the haematophagous poultry red mite, dermanyssus gallinae degeer (acari: dermanyssidae), that was collected on three farms where hen erysipelas was diagnosed. the bacteria wer ...200312823843
diseases of free-ranging chickens in the qwa-qwa district of the northeastern free state province of south africa.a total of 177 free-ranging chickens from 19 qwa-qwa villages were bled from wing veins over a period of 6 months (june-november 2000). serological tests indicated that 5% of chickens tested had been exposed to newcastle disease, 43% to infectious bronchitis and 63% to mycoplasma gallisepticum infection. mcmaster and visser sieve techniques were used to determine helminth and coccidia from pooled fresh faecal samples. helminths isolated in 37% of the villages investigated were heterakis, ascarid ...200312836740
dermatitis due to dermanyssus gallinae of pigeons. 195313057373
pigeons acting as vector in acariasis caused by dermanyssus gallinae (degeer, 1778). 195813519841
some observations on the life-cycle of atoxoplasma, with particular reference to the parasite's schizogony and its transmission by the mite dermanyssus gallinae. 195813590302
an infestation of a human habitation by dermanyssus gallinae (degeer, 1778) (acarina: dermanyssidae) in new york city resulting in sanguisugent attacks upon the occupants. 195813595207
[functional and histological features of the gonotrophic cycle of the chicken mite dermanyssus gallinae (gamasoidea, dermanyssidae)]. 196314078197
longevity of the mites dermanyssus gallinae and liponyssus sylviarum. 196314099848
dermanyssus gallinae (d. avium) . strophulus or "insect" bites. diet or d.d.t. 196414277166
[experimental infection of ticks dermanyssus gallinae redi and bdellonyssus bacoti hirst with q fever]. 195514380143
[dermatitis pruriginosa produced by the mite dermanyssus gallinae (de geer, 1778)]. 195914442623
[on mass attacks of ticks dermanyssus gallinae on humans]. 196014444850
preliminary studies of the monitoring of dermanyssus gallinae in free-range poultry farms. 200314965107
acaricidal activity of plant essential oils against dermanyssus gallinae (acari: dermanyssidae).the acaricial activity of 56 plant essential oils against poultry house-collected adult dermanyssus gallinae de geer was examined using direct contact and fumigation methods. in a filter paper contact bioassay, 100% mortality at 0.07 mgcm-2 was observed in bay, cade, cinnamon, clove bud, coriander, horseradish, lime dis 5f, mustard, pennyroyal, pimento berry, spearmint, thyme red and thyme white oils, whereas the mortality of these oils was significantly decreased at 0.02 mgcm-2. in fumigation t ...200415063940
red mite (dermanyssus gallinae) prevalence in laying units in northern england. 200415222342
variation in the population of dermanyssus gallinae in a free range laying unit and effectiveness of chemical control. 200415222366
parasites of columba livia (aves: columbiformes) in tenerife (canary islands) and their role in the conservation biology of the laurel pigeons.the prevalence and intensity of the parasites from 50 wild doves (columba livia) from the city of santa cruz de tenerife, in the island of tenerife (canary archipelago), were studied. the following ectoparasites were found in apparently healthy pigeons (prevalences are shown in percentage (%) and mean intensities with their standard deviations): the acari dermanyssus gallinae (de geer, 1778) (6, 241.0 +/- 138.9) and tinaminyssus melloi fain, 1962 (10%, 218.3 +/- 117.3); the louses, columbicola c ...200415490756
influence of dermanyssus gallinae and ascaridia galli infections on behaviour and health of laying hens (gallus gallus domesticus).(1) the effect of infections with dermanyssus gallinae (poultry red mite or chicken mite) and ascaridia galli (roundworm) on the behaviour and health of laying hens was investigated. (2) six groups of 15 pullets (isa brown) were kept in indoor pens from 18 weeks of age. two groups were artificially infected with d. gallinae, two groups with a. galli and two groups were kept as uninfected controls. the hens were observed for behavioural reactions and physiological changes (weight gain and various ...200515835249
azadirachtin-impregnated traps for the control of dermanyssus gallinae.the effect of neem oil (azadirachtin), originating from the tree azadirachta indica, was investigated as a potential compound to control the poultry red mite, dermanyssus gallinae. in vitro tests were performed to determine the most appropriate formulation of neem extracts and concentration of the substance to be used. cardboard traps containing 20% neem oil were placed at the mites' aggregation sites, out of reach of the hens, in a floor system for layers containing approximately 2400 birds. tr ...200515890446
scanning electron microscopy of foreleg tarsal sense organs of the poultry red mite, dermanyssus gallinae (degeer) (acari:dermanyssidae).scanning electron microscopy (sem) studies on the poultry red mite, dermanyssus gallinae (degeer), showed that the tip of the foreleg tarsus of both sexes and early instar stages (larvae, protonymph and deutonymph) bears a cluster of 10 blunt peg-type sensillae. diversity in size, shape and surface features of the wall of these sensillae characterize the sensilla complex (sensory field). two short setae (1 and 2) with smooth walls lack detectable pores, whereas three medium-sized setae (4, 5 and ...200515896970
vectorial role of some dermanyssoid mites (acari, mesostigmata, dermanyssoidea).among transmissible diseases, vectorial diseases represent a major problem for public health. in the group of acarina, while ticks are the most commonly implicated vectors, other arthropods and notably dermanyssoidea are also involved in the transmission of pathogenic agents. since the role of this superfamily is at present largely unknown, we have reviewed the vectorial role of these mites in the appearance, survival and propagation of pathogens. various authors have shown that dermanyssoidea a ...200515991823
prevalence of the poultry red mite (dermanyssus gallinae) in england. 200516113169
[distribution and control of acari as vectors of human disease in urban population of moscow].human ectoparasites, such as itch mites and the follicular mites demodex brevis and d. folliculorum are notified on the territory of moscow. the bird and rodent mites ornythonyssus bacoti and the larvae of harvest mites may attack human beings indoors. the ticks ixodes ricinus and i. persulcatus begin to inhabit the tree belts and environs of moscow and other cities and towns. in the cities and towns of more southern regions of the russian federation, the red hen-mites dermanyssus gallinae are a ...200516212087
preliminary study of intermittent lighting regimens for red mite (dermanyssus gallinae) control in poultry houses. 200616751311
[tarsal sensory complex of the red chicken mite dermanyssus gallinae (acari: dermanyssidae)].the tarsal sensory complex of the red chicken mite dermanyssus gallinae is situated on dorsal surface of each fore leg near the claw. it comprises 28 sensilla of 5 morphological types: 4 sw-up (single-wall upper-pore) (gustatory organs), 8 sw-wp (single-wall wall-pore) (olfactory organs), 8 dw-wp (double-wall wall-pore) of two subtypes (thermo-chemoreceptory organs), 6 np-tb (no pore--tubular body) (tactile organs), and 2 reduced sensilla. no sex or stage dimorphism was revealed. morphological d ...200616755721
ability of a proteinase inhibitor mixture to kill poultry red mite, dermanyssus gallinae in an in vitro feeding system.the development of a reliable in vitro feeding system has enabled the rapid testing of presumptive anti-mite factors, a mixture of protease inhibitors (pi), by incorporating these into the blood feed. mites were collected from a caged-hen facility and underwent a regime of starvation under varying conditions of temperature and darkness to determine the optimum conditions that encouraged mites to feed in the in vitro system. the efficacy of two anti-coagulants, heparin (hs) and acid citrate gluco ...200616797846
comparison of four methods of extracting dna from d. gallinae (acari: dermanyssidae).dermanyssus gallinae is one of the most serious ectoparasites of poultry and it has been implicated as a vector of several major pathogenic diseases. molecular detection of such pathogens in mites is crucial and therefore, an important step is the extraction of their dna from mites. so, we compared four dna extraction protocols from engorged and unfed individual mites: a conventional method using a cethyl trimethyl ammonium bromide buffer (ctab), a chelex resin, a qiamp dna extraction kit and a ...200616820136
a house dust mite allergen homologue from poultry red mite dermanyssus gallinae (de geer).tropomyosin is an allergenic, actin-binding protein and a proposed vaccine candidate from several species of parasite. tropomyosin cdna, obtained by polymerase chain reaction (pcr) amplification from dermanyssus gallinae rna, encoded a predicted protein with 89% and 88% identity to tropomyosins from the ticks boophilus microplus and haemaphysalis longicornis, respectively, and 85% identity to the house dust mite (hdm) tropomyosin der p 10. mouse antibodies raised against hdm tropomyosin reacted ...200616879312
[invasion of dermanyssus gallinae (de geer, 1778) in poultry farms in the toruń region].the studies were conducted in three big fully automaticised egg-laying farms within the boundaries of toruń voivodship, where dermanyssus gallinae (de geer 1778) was present. the increased invasion of the parasite on one of the farms resulted in the presence of all clinical symptoms of dermanyssosis. a considerable decrease in the body weight, anaemia and organism exhaustion were observed. a growth in the hens' death rate from 1% (when they were not contaminated) to 4% was observed. there was al ...200016886334
contact and fumigant toxicity of oriental medicinal plant extracts against dermanyssus gallinae (acari: dermanyssidae).the acaricidal activity of methanolic extracts from 40 oriental medicinal plant species and a steam distillate of cinnamomum camphora towards poultry house-collected adult dermanyssus gallinae de geer was examined using direct contact and vapour phase toxicity bioassays. results were compared with those of 15 acaricides currently used. in filter paper contact toxicity bioassays using adult d. gallinae, c. camphora steam distillate (0.0051 mgcm(-2)) was the most toxic material, followed by extrac ...200717289270
experimental infection of salmonella enteritidis by the poultry red mite, dermanyssus gallinae.dermanyssus gallinae is an important ectoparasite of laying hens in europe and it is suspected of being a vector of pathogens. we carried out an in vitro study to evaluate the role of d. gallinae as a vector of salmonella enterica subsp. enterica serotype enteritidis. two means of infecting the mite were tested: through the blood meal and after cuticular contact. mites became carriers of salmonella immediately after the infection with 29% and 53%, respectively, for oral route and cuticular conta ...200717382475
comparison of the vidas system, fta filter-based pcr and culture on sm id for detecting salmonella in dermanyssus gallinae.to compare different analytical methods for detecting salmonella in dermanyssus gallinae.200717397483
field efficacy of phoxim 50% (byemite) against the poultry red mite dermanyssus gallinae in battery cages stocked with laying hens.infestations with the poultry red mite dermanyssus gallinae represent a major ectoparasite problem in poultry and can affect egg layers worldwide. there is presently a lack of an ectoparasiticide in europe for poultry which can assure a 0-day withholding period for eggs. in this study, byemite (phoxim 50%, bayer healthcare, animal health division) was administered to treat a d. gallinae infestation in a poultry house stocked with egg-laying hens kept in a cage system. a layer house was sprayed t ...200717543456
detection of salmonella sp. in dermanyssus gallinae using an fta filter-based polymerase chain reaction.salmonella spp. bacteria are responsible for some of the most important zoonoses worldwide. because dermanyssus gallinae (degeer) (acari: dermanyssidae) has been recently reported to be an experimental vector of salmonella enteritidis, it would be of benefit to evaluate the presence of this bacterium in mites. a molecular detection tool associating a simple filter-based dna preparation with a specific 16s rdna salmonella sp. polymerase chain reaction (pcr) amplification was described. the limit ...200717550434
colonization and organ invasion in chicks experimentally infected with dermanyssus gallinae contaminated by salmonella enteritidis.the poultry red mite (dermanyssus gallinae) is the most important and common ectoparasite of laying hens in europe. this haematophagous mite has been experimentally demonstrated to be a vector of salmonella enteritidis by acquiring bacteria through the blood meal or cuticular contact. we have evaluated another route of infection by orally inoculating chicks with mites previously infected by s. enteritidis. two methods of infecting the mites were tested: mites contaminated by cuticular contact or ...200717620177
[palpal sensory organ in the chicken mite dermanyssus gallinae (acari: dermanyssidae)].palptarsus of the chicken mite bears 5 single-wall upper-pore (sw-up) chemo-mechanoreceptor sensilla (type a); 4 double-wall upper-pore (dw-up) chemosensitive sensilla (type b), and 6 no-pore (np) mechanoreceptor sensilla (type m). the author assumes that sensilla of the type a participate in perception of the aggregation pheromone; of the type b, in perception of trophic stimuli; and of the type m, in determination of mechanical properties of the substrate.200717722642
recovery of equine encephalomyelitis virus (western type) from chicken mites.the western type of equine encephalomyelitis virus has been isolated from chicken mites (dermanyssus gallinae) in nature during an outbreak of the equine disease in the southwest.194517780323
the isolation of the st. louis encephalitis virus from chicken mites (dermanyssus gallinae) in nature. 194417835066
dermatitis in a horse associated with the poultry mite (dermanyssus gallinae).this is the first documented case report of dermatitis associated with the poultry mite (dermanyssus gallinae) in a horse. it occurred in a 16-year-old horse that was in contact with domestic hens. clinical signs consisted of severe pruritus, with self-induced hair loss mainly on the head. despite the multiple skin scrapings performed during both day- and nighttime, mites were only isolated from the in-contact poultry and from the horse's environment, and not the horse. the animal was treated us ...200818177291
nosocomial dermatitis caused by dermanyssus gallinae.the mite dermanyssus gallinae may cause pruritic dermatitis in humans. we describe a case of nosocomial infestation with d. gallinae from an abandoned pigeon nest suspended on the front wall of the hôpital henri mondor near a window. close surveillance and regular destruction of pigeon nests could prevent these incidents of infection in humans.200818205530
what's eating you? pigeon mite (dermanyssus gallinae). 200718246875
pseudoscabies caused by dermanyssus gallinae in italian city dwellers: a new setting for an old dermatitis. 200818384564
acarological diagnostic research at the diagnostic centre for plants during the period 2004-2006.during the period 2004-2006, 1691 samples of different origin were examined at the diagnostic centre for plants. we received 1046 samples of imported plant material for detection and identification of quarantine organisms. more than 200 samples were checked on mites and insects to get a phytosanitary certificate for export and 391 samples were investigated for diagnostic reason. the berlese-funnel and dissecting microscopy technique were used to separate mites from the samples. for identificatio ...200718399474
prevalence of parasites of the local scavenging chickens in a selected semi-arid zone of eastern kenya.a study to identify and estimate the prevalence of parasites of local chickens in a semi arid area of kenya was conducted between march 2005 and august 2006. three hundred and sixty (360) local chickens purchased from yathui division of machakos were examined. of those, 93.3% had helminths. nematodes were recovered in 268 (74.4%) chickens whereas 245 (68.1%) had cestodes. tetrameres americana (37.7%), ascaridia galli (33.3%) and heterakis gallinarum (22.8%) were the most important nematode speci ...200818422252
Displaying items 1 - 100 of 248