Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| reinstatement of dermacentor kamshadalus neumann (acari: ixodidae) as a valid species parasitizing mountain goats and sheep in the united states, canada, and russia. | reexamination of dermacentor albipictus (packard, 1869) holdings stored in the united states national tick collection revealed several collections of a morphologically distinct dermacentor species. comparison of these specimens with other dermacentor taxa showed that they are identical to an old taxon originally described as dermacentor variegatus kamshadalus neumann, 1908. for more than a century, this taxon was known only from the male holotype specimen collected in russia, and the name was co ... | 0 | 23926766 |
| temporal dynamics of linkage disequilibrium in two populations of bighorn sheep. | linkage disequilibrium (ld) is the nonrandom association of alleles at two markers. patterns of ld have biological implications as well as practical ones when designing association studies or conservation programs aimed at identifying the genetic basis of fitness differences within and among populations. however, the temporal dynamics of ld in wild populations has received little empirical attention. in this study, we examined the overall extent of ld, the effect of sample size on the accuracy a ... | 0 | 26380673 |
| an ecological study of the bighorn sheep in rocky mountain national park, colorado. | 1946 | 21020476 | |
| amyloidosis in rocky mountain bighorn sheep. | 1962 | 13903485 | |
| prenatal infection of bighorn sheep with prostrongylid lungworms. | 1964 | 14191595 | |
| rocky mountain bighorn sheep (ovis canadensis canadensis) milk. i. gross compositon and fat constitution. | 1965 | 5829180 | |
| the occurrence of oestrus ovis l. (diptera: oestridae) in the bighorn sheep from wyoming and montana. | 1966 | 5942536 | |
| parasites of ovis canadensis canadensis in montana, with a checklist of the internal and external parasites of the rocky mountain bighorn sheep in north america. | 1967 | 6066758 | |
| experimental bluetongue disease in white-tailed deer. | nine white-tailed deer and six sheep were experimentally exposed to the california btv-8 strain of bluetongue virus. the infections were fatal for seven of the nine deer. an additional deer died from exposure to an isolate of bluetongue virus from bighorn sheep. clinical signs and lesions of bluetongue in deer were described. the incubation period, signs and lesions of bluetongue and epizootic hemorrhagic disease of deer appear to be similar. virus isolations were made from the blood and a varie ... | 1968 | 15846890 |
| defensive behavior in female bighorn sheep. | 1969 | 5813254 | |
| physiologic values in wild bighorn sheep (ovis canadensis canadensis) at capture, after handling, and after captivity. | 1970 | 5452079 | |
| mycoplasma isolates from pneumonia in captive rocky mountain bighorn sheep. | 1970 | 5463793 | |
| in vitro detection of homocytotropic antibody in lungworm-infected rocky mountain bighorn sheep. | 1971 | 5573426 | |
| helminths of the rocky mountain bighorn sheep in western canada. | 1971 | 5106578 | |
| the transferrins and hemoglobins of bighorn sheep (ovis canadensis), dall sheep (ovis dalli) and mouflon (ovis musimon). | 1971 | 5120310 | |
| immunoglobulin response of the rocky mountain bighorn sheep. | 1971 | 5156483 | |
| comparative physiologic values in captive and wild bighorn sheep. | 1971 | 5163727 | |
| coccidia of rocky mountain bighorn sheep in western canada. | 1971 | 5167146 | |
| cell adherence reactions in lungworm (protostrongylus) infections of the rocky mountain bighorn sheep. | the immunological response of captive naturally-infected rocky mountain bighorn sheep to the lungworm, protostrongylus stilesi, was examined throughout the seasonal cycle of parasite activity using a cell adherence assay for circulating antibody. the net effect of all stable serum factors on cell adherence was examined by exposure of normal cells to larvae in the presence of test serum (decomplemented-serum test). homocytotropic antibody was examined by exposure of washed normal cells to larvae ... | 1972 | 4258549 |
| parainfluenza-3 virus infection in rocky mountain bighorn sheep. | 1972 | 4341395 | |
| identification and characterization of mycoplasma arginini from bighorn sheep (ovis canadensis) and goats. | 1972 | 5058544 | |
| transplacental transmission of protostrongylus spp. in bighorn sheep. | 1972 | 4634531 | |
| redescription of trichuris (equals trichocephalus) schumakovitschi (savinkova, 1967) from canadian rocky mountain bighorn sheep (ovis canadensis canadensis). | 1973 | 4687486 | |
| mortality in captive bighorn sheep--clinical, hematological, and pathological observations. | 1973 | 4694583 | |
| serum protein electrophoresis in bighorn sheep with chronic pneumonia. | 1973 | 4694594 | |
| stress and in vitro lymphocyte stimulation by phytohemagglutinin in rocky mountain bighorn sheep. | 1973 | 4705538 | |
| lungworms in the rocky mountain bighorn sheep of western canada. | 1973 | 4750282 | |
| further observations on protostrongylus sp. infection by transplacental transmission in bighorn sheep. | 1974 | 4810213 | |
| size reduction in bighorn sheep (ovis canadensis) at the close of the pleistocene. | 1974 | 4854302 | |
| a serological survey for selected viral infections of rocky mountain bighorn sheep. | 1974 | 4363568 | |
| vaccination trials in desert bighorn sheep against bluetongue virus. | 1974 | 4367519 | |
| contagious ecthyma in bighorn sheep and mountain goat in western canada. | contagious ecthyma (ce) is reported in bighorn sheep (ovis c. canadensis) from several national parks in western canada and in moutain goat (oreamnos americanus) from kootenay national park, british columbia. (this is the first report of ce in mountain goat.) diagnosis was based on clinical signs, histopathology, transmission experiments and the demonstration of a proxvirus with the electron microscope. the infection was transmitted from wild to domestic goat, but not to domestic sheep. most inf ... | 1975 | 1113436 |
| lymphoid cell adherence in protostrongylus (nematoda: metastrongyloidea) infections of rocky mountain bighorn sheep. | 1975 | 1131742 | |
| wyominia tetoni (cestoda: thysanosomatinae) from bighorn sheep in washington. | in washington, eitht california bighorn sheep, ovis canadensis californiana, were necropsied to ascertain age and general physical condition. four were found to harbor wyominia tetoni. | 1975 | 1142552 |
| electrocardiogram of a big-horn sheep (ovis canadensis). | 1975 | 1162880 | |
| observations on epizootiology and distribution of elaeophora schneideri in montana ruminants. | seventy-four moose, 111 elk, 20 mule deer, 8 white-tailed deer, 26 prong-horn antelope, 42 domestic sheep and 3 bighorn sheep from montana or northwestern wyoming were examined post-mortem for evidence of elaeophora schneideri infection in 1973-74. fifteen percent of the mule deer and four percent of the moose were positive for adult arterial worms. this constitutes the first report of e. schneideri in mule deer in montana. no gross signs of blindness or other neurologic disorder were evident in ... | 1975 | 127848 |
| epizootiology of bluetongue: the situation in the united states of america. | bluetongue was first reported in the united states in 1948 in sheep in texas. the virus has now been isolated from sheep in 19 states. when the disease first occurs in a flock, the morbidity may reach 50 to 75% and mortality 20 to 50%. in subsequent years, the morbidity may be only 1 to 2% with very few deaths. difference in breed susceptibility has not been observed. natural bluetongue infection has not been observed in angora or dairy goats. bluetongue virus was first isolated from cattle, in ... | 1975 | 169793 |
| influence of rainfall on lungworm infections in bighorn sheep. | from 1959 through 1968, lungs from 124 rocky mountain bighorn sheep (ovis c. canadensis) from the sun river herd in western montana were examined for lungworm infections. all lungs were infected with protostrongylus stilesi and 104 (84%) contained concurrent infections of p. stilesi and p. rushi. significant correlations were observed between levels of lungworm infection and total rainfall during april, may, and june of each year. an explanation of this in terms of terrestrial snail (intermediat ... | 1976 | 1255913 |
| further studies on trypanosomers in game animals in wyoming. | blood samples were collected from captive and free-ranging elk (cervus canadensis), mule deer (odocoileus hemionus), white-tailed deer, (odocoileus virginianus), black-tailed deer (odocoileus hemionus columbianus), pronghorn (antilocapra americana), moose (alces alces), and bighorn sheep (ovis canadensis) for cultural evidence of trypanosoma sp. infection. eleven of 188 (12%) hunter-killed elk, 22 of 37 (59%) free-ranging elk, and 79 of 119 (66%) captive elk were culture positive in 1973-74. par ... | 1976 | 933315 |
| birth weights and gestation in a captive rocky mountain bighorn sheep. | 1977 | 557522 | |
| an epizootic of pneumonia in captive bighorn sheep infected with muellerius sp. | an epizootic of pneumonia in 20 captive rocky mountain bighorn sheep (ovis canadensis) is described. the sheep were maintained in large paddocks for about 9 months after which, in the late summer, the entire herd died within a three week period. large numbers of muellerius adults, eggs and larvae were in the lungs of all sheep. first stage larvae were widely disseminated throughout the lungs and apparently elicited a granulomatous pneumonia. pasteurella sp. and other bacteria were isolated from ... | 1977 | 864843 |
| helminth parasites of bighorn sheep in oregon. | the lungs and gastrointestinal tracts from 18 hunter-killed bighorn rams (ovis canadensis californiana) were examined in total or in part for helminth parasites during a two-year study of three separate herds in eastern oregon. prevalence was 100% with the lungworm protostrongylus stilesi. the gastrointestinal fauna from 11 rams comprised cooperia oncophora, marshallagia marshalli, nematodirus oiratianus, oesophagostomum spp., ostertagia occidentalis, o. ostertagi, skrjabinema ovis, trichostrong ... | 1977 | 864844 |
| three new eimeria spp. (protozoa, eimeriidae) from muskoxen, ovibos moschattus, with redescriptions of e. faurei, e. granulosa, and e. ovina from muskoxen and froma rocky moutain bighorn sheep, ovis canadensis. | 1977 | 884633 | |
| prenatal infection of the rocky mountain bighorn sheep (ovis c. canadensis) of alberta with the lungworm protostrongylus spp. | first- and third-stage (infective) larvae of protostrongylus spp. were recovered from the livers of four fetuses of the rocky mountain bighorn sheep of alberta. this record suggests a more cosmopolitan distribution of prenatal infection with lungworms in bighorn sheep than suspected previously. | 1977 | 916136 |
| chlorinated hydrocarbon residues in perianal fat of desert bighorn sheep. | 1978 | 415775 | |
| chronic frontal sinusitis and osteolysis in desert bighorn sheep. | chronic frontal sinusitis and osteolysis in a herd of desert bighorn sheep (ovis canadensis nelsoni) in zion national park, utah, was attributed to bacterial infection secondary to aberrant nasal bot migration. analysis of skulls and live adult sheep (equal to 1 year old) showed that 9 to 22 animals were affected. one ram and 1 ewe were treated by trephination and irrigation. treatment was successful for the ewe, but not for the ram. radiography, thermography, and blood profiles were used in an ... | 1978 | 738941 |
| winter bioenergetics of rocky mountain bighorn sheep. | 1978 | 751706 | |
| transplacental movement of organochlorine pesticide residues in desert bighorn sheep. | 1979 | 444690 | |
| paratuberculosis (johne's disease) in bighorn sheep and a rocky mountain goat in colorado. | between may, 1972 and february, 1978, six cases of paratuberculosis (johne's disease) caused by mycobacterium paratuberculosis were diagnosed in free-ranging rocky mountain bighorn sheep (ovis canadensis) and one rocky mountain goat (oreamnos americanus) on or near mt. evans in colorado. diagnosis of paratuberculosis was based on gross and histopathologic examination of the animals and by isolation of m. paratuberculosis from three sheep and the goat. the clinical signs and pathologic changes se ... | 1979 | 480512 |
| isolation of a chlamydial agent from rocky mountain bighorn sheep. | a total of 53 clinical specimens from both healthy and diseased rocky mountain bighorn sheep (ovis canadensis) were examined for chlamydia. an agent consistently lethal for chicken embryos was recovered from a nasal swab taken from a normal ewe. this agent, designated bhs-15, possesses antigens which fix complement in the presence of anti-chlamydial serum, is susceptible to chlortetracycline, and is resistant to sodium sulfadiazine and streptomycin. attempts to culture the isolate in quality con ... | 1979 | 522218 |
| transplacental transmission of protostrongylus sp. in california bighorn sheep (ovis canadensis californiana) in oregon. | transplacental transmission of protostrongylus sp. was documented for the first time in california bighorn sheep (ovis canadensis californiana) by recovery of third stage larvae from two fetuses. | 1979 | 522227 |
| negative contrast electron microscopic techniques for diagnosis of viruses of veterinary importance. | negative contrast electron microscopy (ncem) was utilized as a routine tool in the diagnosis of viral infections of domestic and wild animals. viruses identified by this technique were observed in infected culture systems or clinical specimens from several species including horses, cattle, sheep, dogs, cats, pigs, deer, rocky mountain bighorn sheep, antelope, and several avian species. viruses were identified by ncem based on their size, morphology, and symmetry and consisted of adenoviruses, he ... | 1980 | 6157508 |
| sarcocystis in wild ungulates in alberta. | muscle samples from 557 wild ungulates in alberta, comprising seven species, were examined grossly and/or histologically for cysts of sarcocystis. sarcocystis was found in 100, 96, 94, 75, 75, 73, and 49% of the wapiti (cervus canadensis), moose (alces alces), bison (bison bison), mule deer (odocoileus hemionus), bighorn sheep (ovis canadensis), mountain goat (oreamnos americanus), and white-tailed deer (o. virginianus), respectively. | 1980 | 6780701 |
| identification and control of psoroptic scabies in bighorn sheep (ovis canadensis mexicana). | 1980 | 6947292 | |
| psoroptic scabies in bignorn sheep (ovis canadensis mexicana) in new mexico. | prior to 1978, no reports were made of scabies lesions or mites recovered from any mexican bighorn sheep (ovis canadensis mexicana) examined in the san andres national wildlife refuge in southern new mexico. in 1978, all of five rams harvested by hunters had live mites of the genus psoroptes and active lesions of scabies in their ears and/or on their bodies. deaths due to scabies were not documented during this outbreak although aerial helicopter surveys conducted in march, june and september, ... | 1980 | 7373729 |
| progesterone levels in peripheral plasma of rocky mountain bighorn ewes (ovis canadensis) during the estrous cycle and pregnancy. | 1980 | 7427804 | |
| comparative aspects of biochemical polymorphism in the blood of caprinae species and their hybrids. | biochemical variation at 14 blood loci was reviewed, and specific features compared experimentally in sheep ovis aries, mouflon ovis musimon, goat capra hircus, aoudad ammotragus iervia and in 2 stillborn aoudad x goat hybrids. variation at 3 loci was also studied in dall sheep ovis dalli, bighorn sheep ovis canadensis and rocky mountain goat oreamnos americanus. haemoglobin c production in an anaemic hb ab mouflon and in mouflon x sheep hybrids was examined. mouflon differ from domestic sheep i ... | 1980 | 7458003 |
| transmission of psoroptic mites from bighorn sheep (ovis canadensis mexicana) to domestic sheep, cattle and rabbits. | 1981 | 7198154 | |
| physiologic and hematologic values in nelson desert bighorn sheep. | physiologic and hematologic values were established for two groups of free ranging nelson desert bighorn sheep (ovis canadensis nelsoni). eleven sheep (group i) were captured with a drop net, 16 sheep (group ii) were immobilized with etorphine introduced in projectile syringes. the mean glucose level, respiration rate and leucocyte count values for group i sheep were more than twice those observed in group ii sheep. there were no differences between the groups in the other values. data obtained ... | 1981 | 7253095 |
| survey of chronic sinusitis-induced skull anomalies in desert bighorn sheep. | bone anomalies were found in 20% of 630 skulls from desert bighorn sheep (ovis canadensis) representing populations of california bighorn (o canadensis californiana), lower california bighorn (o canadensis cremnobates), mexican bighorn (o canadensis mexicana), and nelson bighorn (o canadensis nelsoni) that are native to arizona, california, nevada, new mexico, and utah. the anomalies were extremely diverse, ranging from osteonecrosis within the matrix of the paranasal sinuses to extensive lysis ... | 1981 | 7327996 |
| an epizootic of contagious ecthyma in rocky mountain bighorn sheep in colorado. | 1981 | 7338983 | |
| morphological and histochemical observations on the duodenal glands of eight wild ungulate species native to north america. | the duodenal glands of the species examined (alces alces, ovis canadensis, cervus canadensis, oreamnos americanus, bison bison, antilocapra americana, odocoileus virginianas, odocoileus heminous) are confined primarily to the submucosa of the small intestine. in one species, the moose, a significant population of secretory tubules also is observed in the mucosa. the ducts of the duodenal glands pierce the overlying muscularis mucosae to empty most often independently into the intestinal lumen. t ... | 1981 | 6171158 |
| serologic survey for selected microbial agents in mammals from alberta, 1976. | blood samples were taken from humans and several species of free-ranging wild mammals from five different geographic areas of alberta, canada. sera were tested for antibody to eastern equine encephalitis (eee) virus, western equine encephalitis (wee) virus, st. louis encephalitis (sle) virus, powassan (pow) virus, the snowshoe hare (ssh) strain of the california group (cal) of viruses, northway (nor) virus, klamath (kla) virus, infectious bovine rhinotracheitis (ibr) virus, and two bacteria, bru ... | 1981 | 6273600 |
| prevalence of antibodies of selected infectious disease agents in the peninsular desert bighorn sheep (ovis canadensis cremnobates) of the santa rosa mountains, california. | 1982 | 6285010 | |
| fatal pneumonia of bighorn sheep following association with domestic sheep. | during 1979-1980 acute fibrinopurulent bronchopneumonia resulted in high mortality or total loss of herds of bighorn sheep (ovis canadensis) in california and washington. contact with domestic sheep occurred shortly before the onset of disease in each case. circumstantial evidence indicated that the apparently healthy domestic sheep transmitted pathogenic bacteria to the bighorns, resulting in mortality. pasteurella multocida and corynebacterium pyogenes were isolated from pulmonary tissue of de ... | 1982 | 7047767 |
| blood group comparisons between european mouflon sheep and north american desert bighorn sheep. | blood group systems in true sheep (ovis) provide an additional method by which phylogenetic relationships can be measured. of the eight genetic systems of blood groups identified in domestic sheep, all appeared to have their homologue in european mouflons and at least six might have their equivalent in north american desert bighorns. the red cells of the european mouflon, which is believed to be ancestral to domestic sheep, cross-reacted with domestic sheep blood-group typing reagents much more ... | 1982 | 7096977 |
| chronic cranial osteitis in a rocky mountain bighorn sheep. | 1982 | 7131664 | |
| cranial lesions attributable to chronic sinusitis in bighorn sheep--. | 1982 | 7174487 | |
| reproductive gambling in bighorn sheep (ovis): a simulation. | 1982 | 7176663 | |
| the baermann technique for estimating protostrongylus infection in bighorn sheep: effect of laboratory procedures. | the modified baermann funnel technique was evaluated to determine the effects of time of baermannization, fecal preparation, type and size of funnel, and type of filter on the number of first stage larvae of protostrongylus spp. recovered from feces of rocky mountain bighorn sheep (ovis canadensis). more larvae were recovered when fecal pellets were baermannized for 24 hr compared to 8 hr, and when feces were crushed than when left intact. use of small funnels resulted in the recovery of more la ... | 1983 | 6842742 |
| pathology of spontaneous and experimental infection of north american wild ruminants with mycobacterium paratuberculosis. | spontaneous paratuberculosis was studied in free-ranging and captive bighorn sheep (ovis canadensis), and rocky mountain goats (oreamnos americanus). lesions of paratuberculosis in these species resembled the disease in domestic sheep and goats. mycobacterium paratuberculosis cultured from bighorn sheep was used to orally infect bighorn x mouflon (ovis musimon) hybrid sheep, elk (cervus elaphus nelsoni), mule deer (odocoileus hemionus), and white-tailed deer (odocoileus virginianus). clinical pa ... | 1983 | 6879954 |
| hematologic, serum chemistry and serologic values of dall's sheep (ovis dalli dalli) in alaska. | in june 1979, 73 dall's sheep were captured near tok, alaska to determine selected hematologic and serum metabolite parameters and to determine the presence of antibodies to selected pathogens. hematology and serum metabolite values were compared with values for domestic sheep and bighorn sheep (ovis canadensis). antibodies were detected against brucella sp. (4%), campylobacter feti (30%), contagious ecthyma virus (23%) and bovine parainfluenza type 3 virus (1%). antibodies were not detected aga ... | 1983 | 6887435 |
| isolations of aerobic bacteria from wild desert bighorn sheep (ovis canadensis nelsoni and o. c. mexicana) in arizona. | nasal, pharyngeal, cervical and vaginal swab specimens were obtained from 74 desert bighorn sheep for the purpose of investigating the normal aerobic bacterial flora of wild sheep. a total of 281 isolates was obtained and identified by standard microbiologic tests. one hundred seven of these isolates were gram positive and included bacillus sp. (36%), staphylococcus epidermidis (8%), s. aureus (4%), corynebacterium sp. (diphtheroids, 4%), and streptococcus sp. (48%). gram negative isolates total ... | 1983 | 6887449 |
| experimental infection of some north american wild ruminants and domestic sheep with mycobacterium paratuberculosis: clinical and bacteriological findings. | mycobacterium paratuberculosis originally isolated from bighorn sheep (ovis canadensis) with spontaneous paratuberculosis was used to orally inoculate rocky mountain elk (cervus elaphus nelsoni) calves, mule deer (odocoileus hemionus) fawns, white-tailed deer (odocoileus virginianus) fawns, bighorn x mouflon (ovis musimon) hybrid lambs, and domestic lambs. all experimentally exposed animals became infected. during the first year of infection, hybrid and domestic sheep were able to control the in ... | 1983 | 6644916 |
| psoroptic scabies in desert bighorn sheep (ovis canadensis nelsoni) from northwestern arizona. | scabies due to infestation by psoroptes ovis was monitored from 1979 through 1981 in nelson's desert bighorn sheep in northwestern arizona. visual examinations for ear lesions and evaluations of ear scrapings were used to assess the prevalence of mites in sheep that were live-captured or killed during the hunting season. the prevalence of psoroptic scabies in live-captured sheep for the years 1979, 1980, and 1981, was 25%, 25%, and 0%, respectively, and was higher in rams (1979, 65%; 1980, 100%) ... | 1983 | 6644933 |
| experimental contagious ecthyma in mule deer, white-tailed deer, pronghorn and wapiti. | hand-reared mule deer fawns (odocoileus hemionus), white-tailed deer fawns (odocoileus virginianus), pronghorn fawns (antilocapra americana) and wapiti calves (cervus elaphus nelsoni) were exposed to contagious ecthyma lesion material obtained from rocky mountain bighorn sheep (ovis canadensis canadensis) to determine the susceptibility and pathogenesis in these species. all four species developed mucocutaneous proliferative lesions of the oral cavity, grossly and histologically compatible with ... | 1983 | 6685778 |
| preliminary evaluation of ivermectin for control of psoroptes ovis in desert bighorn sheep. | 1983 | 6687742 | |
| anaplasma infections in wild and domestic ruminants: a review. | anaplasma marginale can be transmitted, will grow and can survive in a large number of domestic and wild animals. it is pathogenic in cattle, and usually produces nonapparent or mild infections in other species. anaplasma marginale has been recovered from cattle, sheep, goats, water buffalo (bubalus bubalis), white-tailed deer (odocoileus virginianus), mule deer (odocoileus hemionus hemionus), black-tailed deer (odocoileus hemionus columbianus), pronghorn (antilocapra americana americana), rocky ... | 1984 | 6716555 |
| muellerius capillaris (mueller, 1889) (nematoda: protostrongylidae): an unusual finding in rocky mountain bighorn sheep (ovis canadensis canadensis shaw) in south dakota. | lungs and fecal samples from nine hunter-killed rocky mountain bighorn sheep were examined for lungworms. all samples contained adults and/or larvae of muellerius capillaris (mueller, 1889). protostrongylus spp., the lungworms commonly reported from bighorn sheep, were not present in any samples. larvae of m. capillaris bear a spine on the dorsal side of the posterior end and are shorter than dorsal-spined larvae of other lungworms recorded from north american ungulates. larvae similar in shape ... | 1984 | 6530714 |
| pathologic changes and microorganisms found in bighorn sheep during a stress-related die-off. | an all-age die-off of rocky mountain bighorn sheep (ovis c. canadensis shaw) occurred from late october 1980 through march 1981 in waterton canyon, colorado, with a loss of 75 to 85% of the sheep. the cause of death was a subacute to chronic bronchopneumonia and the primary etiologic agents isolated from the respiratory system were a pasteurella sp., p. multocida, corynebacterium pyogenes, and protostrongylus stilesi dikmans, 1931. the underlying predisposing factors that initiated this die-off ... | 1984 | 6530718 |
| mating in bighorn sheep: multiple creative male strategies. | rocky mountain bighorn rams obtained copulations by defending single estrous ewes (tending), fighting tending rams for temporary access to defended ewes (coursing), or moving and holding ewes away from other rams beyond the periphery of a traditional tending area (blocking). coursing and blocking illustrate a feature of many male alternative mating strategies: the ability of males regularly to create mating opportunities. | 1984 | 6539948 |
| epidemiology of two orbiviruses in california's native wild ruminants: preliminary report. | between 1978 and 1983 we collected more than 1,500 serum samples from california's native black-tailed deer (odocoileus hemionus columbianus), 4 races of mule deer (o. h. sp.), tule elk (cervus elaphus nannodes), roosevelt elk (c. e. roosevelti), pronghorn antelope (antilocapra americana), california bighorn sheep (ovis canadensis californiana), peninsular bighorn sheep (o. c. cremnobates) and desert bighorn sheep (o. c. nelsoni) and analyzed them for agar gel precipitating (agp) antibodies to b ... | 1985 | 2989899 |
| use of a quadrivalent modified-live bluetongue virus vaccine in wildlife species. | three hundred and twenty-seven animals comprised of deer, mouflon sheep and bighorn sheep were vaccinated with an experimental quadrivalent, modified-live, bluetongue virus (btv) vaccine. no untoward effects due to the vaccine were noted nor were abortions observed in vaccinated pregnant mouflon sheep. precipitating antibodies to btv and epizootic hemorrhagic disease (ehd) virus were identified in the serum of several animals prior to vaccination. virus neutralizing antibodies to 3 of the 5 sero ... | 1985 | 2989912 |
| psoroptes ovis (acarina: psoroptidae) in a rocky mountain bighorn sheep (ovis canadensis canadensis) in idaho. | 1985 | 3841164 | |
| seroprevalence of respiratory syncytial virus in free-ranging bighorn sheep. | sera from 187 (42%) of 447 free-ranging bighorn sheep (ovis canadensis) in 9 western states had antibody titers to respiratory syncytial virus (rsv). titers were from 1:5 to 1:640, as determined by the standard virus neutralization test. results of the survey indicated that rsv is widespread in free-ranging bighorn sheep populations and that rsv may be an important factor in the bighorn sheep pneumonia-complex. | 1985 | 3878355 |
| survey of desert bighorn sheep in california for exposure to selected infectious diseases. | from february 1983 to june 1985, 188 desert bighorn sheep (ovis canadensis nelsoni, = 161 and oc cremnobates, = 27) from 18 herds in 17 mountain ranges and one captive herd were caught, marked, and had blood, fecal, and nasal mucus samples collected. nasal swab specimens were cultured bacteriologically and virologically specifically for parainfluenza-3 (pi-3) virus. bacterial flora differed from herd to herd. pathogenic pneumophilic bacteria (eg, pasteurella sp) seldom were found. parainfluenza- ... | 1985 | 3878356 |
| the role of wild north american ungulates in the epidemiology of bovine brucellosis: a review. | published reports of brucella abortus infections in wild north american ungulates and domestic cattle herds were reviewed to determine if infection in these species was related. bison (bison bison) were frequently found infected, but are probably a minor threat to livestock due to their current limited distribution. most elk (cervus elaphus) were free of infection except where their range was shared with infected bison or livestock. deer (odocoileus spp.), pronghorns (antilocapra americana), moo ... | 1985 | 3908724 |
| lymphocyte blastogenesis, complement fixation, and fecal culture as diagnostic tests for paratuberculosis in north american wild ruminants and domestic sheep. | the efficacy of the lymphocyte blastogenesis and complement-fixation tests and fecal culture for detection of mycobacterium paratuberculosis infection was assessed in bighorn sheep (ovis canadensis), elk (cervus elaphus nelsoni), mule deer (odocoileus hemionus), white-tailed deer (o virginianus), bighorn x mouflon (o musimon) hybrid sheep, and domestic sheep. spontaneously infected bighorns were tested at the time of capture; experimentally infected animals were tested monthly for 12 months or p ... | 1985 | 4073642 |
| yohimbine antagonism to xylazine in free-ranging mule deer and desert bighorn sheep. | 1985 | 4077656 | |
| immobilization of free-ranging desert bighorn sheep, tule elk, and wild horses, using carfentanil and xylazine: reversal with naloxone, diprenorphine, and yohimbine. | 1985 | 4077657 | |
| isolation and serologic evidence of a respiratory syncytial virus in bighorn sheep from colorado. | 1986 | 3735590 | |
| experimental infections of free-ranging rocky mountain bighorn sheep with lungworms (protostrongylus spp.; nematoda: protostrongylidae). | twelve free-ranging rocky mountain bighorn lambs (ovis canadensis canadensis), each exposed experimentally to 125-1,000 infective third-stage larvae of protostrongylus stilesi and p. rushi, shed significantly more first-stage larvae in their feces than did control lambs, but showed no clinical signs of illness and had equivalent summer and overwinter survival as control lambs. two adult ewes, each exposed to 925 infective larvae, showed no increase in numbers of first-stage larvae in their feces ... | 1987 | 3625896 |
| capture methods in five subspecies of free-ranging bighorn sheep: an evaluation of drop-net, drive-net, chemical immobilization and the net-gun. | six hundred thirty-four bighorn sheep (ovis canadensis) were captured in the western united states between 1980 and 1986, using four different methods: drop-net (n = 158), drive-net (n = 249), chemical immobilization (n = 90) and net-gun (n = 137). the net-gun was found to have considerable advantages over the use of ground nets and chemical immobilization methods for capturing bighorn sheep. evaluation of specific outcome categories for individual sheep, including normal, compromised (stress-in ... | 1987 | 3682090 |
| effects of capture on biological parameters in free-ranging bighorn sheep (ovis canadensis): evaluation of drop-net, drive-net, chemical immobilization and the net-gun. | blood samples and physiological data were collected from 634 bighorn sheep captured between 1980 and 1986 in the western united states. bighorn sheep were evaluated for physiological parameters (temperature, pulse and respiration), selected biochemical parameters (cortisol, creatine phosphokinase (cpk), serum glutamic oxaloacetic transaminase (sgot), lactic dehydrogenase (ldh), alkaline phosphotase (ap), potassium, sodium, chloride, creatinine, blood urea nitrogen (bun), selenium, glucose, total ... | 1987 | 3682091 |
| effects of capture on biological parameters in free-ranging bighorn sheep (ovis canadensis): evaluation of normal, stressed and mortality outcomes and documentation of postcapture survival. | blood samples and physiological data were collected from 634 bighorn sheep (ovis canadensis) captured by four different methods between 1980 and 1986 in the western united states. these parameters were evaluated for selected physiological, biochemical and hematological values. postcapture biological parameters were compared among bighorn sheep according to four different outcomes; normal, stressed or compromised, capture myopathy (cm) mortality, and accidental mortality. significant differences ... | 1987 | 3682092 |
| experimental contact transmission of pasteurella haemolytica from clinically normal domestic sheep causing pneumonia in rocky mountain bighorn sheep. | two rocky mountain bighorn lambs (ovis canadensis canadensis) were held in captivity for 120 days before being housed with two domestic sheep. the lambs were clinically normal and had no pasteurella spp. on nasal swab cultures. the domestic sheep were known to carry pasteurella haemolytica biotype a in the nasal passages. after being in close contact for 19 days. p. haemolytica biotype a was cultured from nasal swabs of one of the bighorn lambs. by 26 days, both bighorn sheep developed coughs, w ... | 1988 | 3193561 |
| haemolytic effect of pasteurella haemolytica on blood from young mammals. | on agar plates containing young lamb blood, pasteurella haemolytica produces a wide outer zone of partial haemolysis in addition to the narrow zone of complete clearing seen on adult sheep blood agar. to determine whether this phenomenon was limited to lamb blood, samples from young animals of 20 mammalian species were examined. two species--the barbary sheep (ammotragus lervia) and scimitar horned oryx (oryx tao)--possessed blood that gave this effect provided that the samples were taken from y ... | 1988 | 3194597 |
| susceptibility of rocky mountain bighorn sheep and domestic sheep to pneumonia induced by bighorn and domestic livestock strains of pasteurella haemolytica. | bighorn sheep were inoculated intratracheally with suspensions of nonhemolytic pasteurella haemolytica biotype t (10(12) organisms) unique to wild bighorns, with beta-hemolytic p. haemolytica biotype t (10(12) organisms) isolated from clinically normal domestic sheep or intradermally with half a dose of a cattle vaccine containing p. haemolytica biotype a (10(5) organisms). the bighorn strain caused lobar necrotizing bronchopneumonia whereas both domestic livestock strains precipitated fatal sep ... | 1988 | 3196974 |
| response of vaccinated and unvaccinated bighorn sheep (ovis canadensis canadensis) to experimental respiratory syncytial virus challenge. | five rocky mountain bighorn sheep (ovis canadensis canadensis), approximately 5 mo old and without detectable antibody titers to respiratory syncytial virus (rsv), were assigned to two groups to study the effects of rsv challenge inoculation in vaccinated (n = 3) and unvaccinated (n = 2) bighorns. the three lambs vaccinated with a modified live bovine rsv vaccine developed a detectable antibody response to the vaccine. vaccinated and unvaccinated lambs challenged with an ovine isolate of rsv dev ... | 1988 | 3373644 |
| susceptibilities of 14 cell lines to bluetongue virus infection. | the effect of bluetongue virus (btv) infection was investigated in 14 cell lines. the cell lines included the following vertebrate cells: baby hamster kidney, african green monkey kidney (vero), rabbit kidney, bovine kidney, canine kidney, bovine turbinate, bovine endothelium (cpae), bighorn sheep tongue, equine dermis, gekko lung, rainbow trout gonad, and mouse fibroblast (l929); they also included the following invertebrate lines: mosquito and biting midge. comparisons between the cell lines w ... | 1988 | 2853175 |