| clinical and pharmacological properties of ivermectin in rabbits and guinea pigs. | when 400 micrograms ivermectin/kg was administered subcutaneously to rabbits infected with the ear mite psoroptes cuniculi it significantly reduced the clinical score, and when 500 micrograms ivermectin/kg was administered subcutaneously to guinea pigs with mange due to trixacaurus caviae it resulted in a clinical cure. in rabbits a subcutaneous dose of 400 micrograms/kg produced high and sustained concentrations of ivermectin in the tissues and body fluids for at least 13 days and its rate of d ... | 1992 | 1553807 |
| cross-reactivity between the house dust mite dermatophagoides pteronyssinus and the mange mites psoroptes cuniculi and p. ovis. i. demonstration of antibodies to the house dust mite allergen dpt 12 in sera from p. cuniculi-infested rabbits. | the cross-reactivity of the mange mites psoroptes cuniculi (pc) and psoroptes ovis (po) antigens with the house dust mite dermatophagoides pteronyssinus (dp) antigens has been studied. cross-reactivity between mange mite and house dust mite antigens was demonstrated by both elisa and immunoelectrophoresis by use of a sheep anti-dp antiserum. both pc and po were demonstrated to contain eight cross-reacting antigens. sera from rabbits infested with pc were demonstrated to produce antibodies to the ... | 1986 | 2426321 |
| therapeutic efficacy of linalool for the topical treatment of parasitic otitis caused by psoroptes cuniculi in the rabbit and in the goat. | | 1997 | 9330264 |
| genetic evidence suggests that psoroptes isolates of different phenotypes, hosts and geographic origins are conspecific. | the second internal transcribed spacer of the rrna gene was characterised in 15 psoroptes isolates collected from the ears or bodies of rabbits, goats, sheep and cattle originating from four continents. morphologically, the isolates were differentiated as psoroptes cuniculi, psoroptes ovis and psoroptes cervinus. genotypically, the isolates were highly homogeneous, except for the existence of different rdna classes. in view of previous phenotypic data, a possible conspecificity of these species ... | 1998 | 9846608 |
| the use of entomopathogenic fungi for the control of parasitic mites, psoroptes spp. | in vitro trials were carried out to evaluate the potential of fungal pathogens as biological control agents of parasitic mites, psoroptes ovis (hering) (acari: psoroptidae) from rabbit hosts (synonym: psoroptes cuniculi). the fungus hirsutella thompsonii fisher showed no pathogenicity. metarhizium anisopoliae (metschinkoff), however, showed a high level of pathogenicity; 3 days after exposure to fungal conidia all mites were dead and 6 days after exposure 60% of the dead adult females, 10% of th ... | 2000 | 10946133 |
| the prevalence and pathogenicity of chorioptes bovis (hering, 1845) and psoroptes cuniculi (delafond, 1859) (acari: psoroptidae) infestations in feral goats in new zealand. | between october 1976 and january 1980 a total of 368 feral goats was examined in new zealand for the presence of chorioptes bovis and 434 for the presence of psoroptes cuniculi. the seasonal pattern of c. bovis infestation in feral goats was similar to that seen in sheep and cattle. the prevalence of infestation reached 100% in july and august (winter) and declined to 27% in february and march (summer). fewer goats were infested with p. cuniculi and prevalence of infestation reached a maximum of ... | 1983 | 6605609 |
| psoroptic ear mange (psoroptes cuniculi, delafond, 1859) in domestic and wild ruminants in israel. | otoacariasis, caused by psoroptes cuniculi (delafond, 1859) is reported in sheep (ovis aries), domestic goats (capra aegagrus hircus), mountain goats (capra ibex nubiana) and yaez (a cross between domestic and mountain goats). captive and captured deer (gazella gazella and gazella dorcas) were found negative for ear mites. sheep and mountain goats were found to be the most affected while goats and yaez only sporadically so. the clinical manifestations are described and the results are discussed ... | 1985 | 4002605 |
| kinetic elisa for detection of antibodies to psoroptes sp. (acari: psoroptidae) in bighorn sheep (ovis canadensis). | a kinetic enzyme-linked immunosorbent assay (elisa) was developed using antigenic extracts prepared from psoroptes cuniculi mites and sera from 37 psoroptes sp.-infested and 43 uninfested bighorn sheep (ovis canadensis). serial dilutions of these serum samples, representing 3 bighorn sheep subspecies and 9 geographic areas, gave parallel responses when plotted as log dilution versus log kinetic rate. therefore, all 80 samples were run at a single dilution (1:100) and positive/negative cutoff val ... | 1991 | 1919915 |
| subclinical psoroptic otocariasis in brazilian sheep with comments on a technique for mite collection. | subclinical psoroptic otocariasis associated with psoroptes cuniculi (delafond) was diagnosed in four out of ten herds of sheep. transmission of mites between sheep and goats and vice versa was detected in herds kept on the same pastures for over 2 years. flushing the ear canals of sheep and goats with approximately 50 ml of water appeared to be more efficient than swabbing or otoscopic examination for diagnosis and/or mite collection. | 1992 | 1563304 |
| observations on the potential for natural transfer of psoroptes cuniculi and chorioptes bovis (acari: psoroptidae) between goats and sheep. | goats and sheep were pastured together and held in close contact in yards twice a month for 21 months. the goats had a high prevalence of both the rabbit ear canker mite, psoroptes cuniculi and the chorioptic mange mite, chorioptes bovis. the sheep were not infested with p. cuniculi at the beginning of the study and viable c. bovis could not be detected. at no time during the study did p. cuniculi establish in the ears of sheep, despite a maximum prevalence of >95% p. cuniculi in goats. this may ... | 1989 | 16031519 |
| clinical development and serological antibody responses in sheep and rabbits experimentally infested with psoroptes ovis and psoroptes cuniculi. | psoroptes ovis of sheep origin, and psoroptes cuniculi of rabbit origin were used in experimental infestations. in experiment i, groups of four rabbits and four sheep were infested with 50-100 mites of each isolate on the skin of the back (skin infestation, si) or in the external auditory canal (aural infestation, ai). in rabbits, si and ai with p. cuniculi and ai with p. ovis induced in all animals typical ear lesions and pronounced antibody reactions to p. cuniculi antigens in elisa. after si ... | 2004 | 15350666 |
| tactic responses of the parasitic mite, psoroptes ovis, to light and temperature. | the astigmatid mite, psoroptes ovis (hering) (acari: psoroptidae), is an obligate, non-burrowing ectoparasite of vertebrates, of particular economic importance in domestic sheep flocks where it causes clinical psoroptic mange. to help understand the behaviour which facilitates transmission via the environment, the responses of p. ovis derived from rabbits (syn. psoroptes cuniculi) to temperature and light were examined in the laboratory. on a vertical surface of uniform temperature, the presence ... | 2004 | 15285139 |
| the in vitro response of sheep scab mites to pyrethroid insecticides. | the response of sheep scab mites to pyrethroid insecticides and organophosphate compounds was studied in vitro with the objective of finding a simple test for detecting insecticide resistance in scab mites. psoroptes cuniculi from rabbits or p. ovis from sheep were enclosed in small 'tea bags' made from heat sealable paper prior to dipping in insecticide. mites failed to die 24 h after a 1 min dip in working concentrations of insecticidal sheep dips. with flumethrin a variety of different condit ... | 1999 | 10423014 |
| the effects of temperature and humidity on the off-host survival of psoroptes ovis and psoroptes cuniculi. | the effects of both temperature and humidity on the survival of the mites psoroptes ovis and psoroptes cuniculi were considered in laboratory assays. when p. ovis and p. cuniculi were maintained at 95% humidity, maximum survival decreased linearly with increasing temperature, from approximately 15 days at 9 degrees c to 5 days at 30 degrees c. there was no significant difference between p. ovis and p. cuniculi in the effects of temperature on maximum survival. adult male p. ovis and p. cuniculi ... | 1999 | 10423008 |
| the feeding behaviour of psoroptes spp. mites on rabbits and sheep. | a scanning electron microscope (sem) study of the mouthparts of psoroptes cuniculi from rabbits and p. ovis from sheep established that they are identical in morphology and are adapted for surface feeding rather than piercing the epidermis. haemoglobin was found in both p. cuniculi and p. ovis on rabbits but not in p. ovis on sheep and it is concluded that the haemoglobin is derived from small haemorrhages on the surface of inflamed rabbit skin. this inflammation is caused by the deposition of a ... | 1987 | 2443631 |