Publications

[an experimental study of mixed tularemia and omsk hemorrhagic fever infection in muskrats].	musk-rats were infected simultaneously and at three-day interval with tularemia and omsk hemorrhagic fever (ohf); the course of this mixed infection under the mentioned conditions were studied. virological, microbiological and morphological data indicated that infection of musk-rats with ohf and tularemia caused development of mixed infection in them. a more severe course of mixed infection was associated with enhanced vascular affections caused by the action of the ohf virus. an inhibition of t ...	1975	175620
the muskrat as an intermediate host of echinococcus multilocularis in montana.		1979	448595
the initiation and maintenance of bradycardia in a diving mammal, the muskrat, ondatra zibethica.	1. the cardiac and respiratory responses shown by muskrats in both unrestrained and restrained dives have been compared with responses elicited by stimulation of a number of cardio-depressant receptor inputs, in an attempt to determine which are most important in initiating and maintaining diving bradycardia. 2. in unrestrained voluntary dives heart rate fell from 310 +/- 3 to 54 +/- 3 beats min-1 in 1 to 2 sec, which was significantly below that seen in dives by restrained unanaesthetized or an ...	1979	469759
microsporidal encephalitis in muskrats.	microsporida similar morphologically to encephalitozoon cuniculi were found in granulomatous foci in the brain of 5 of 29 wild-caught muskrats (ondatra zibethica) held in captivity for various periods of time, but not in any of 36 free-living muskrats examined. the significance and possible source of this infection are discussed.	1979	501846
the amino acid sequence of hamster pancreatic ribonuclease.	the amino acid sequence of golden hamster pancreatic ribonuclease was determined by analysis of tryptic, chymotryptic, thermolytic, and cnbr peptides and by automatic sequence analysis of the intact protein. like all rnases with an asn-met-thr sequence at positions 34-36, hamster rnase is glycosylated at position 34 with a complex-type carbohydrated chain. val-17, ala-18, his-55, his-76 and ala-90 have never been observed in other pancreatic rnases. ala-90 replaces ser-90, which had been invaria ...	1979	518928
survey of q-fever agglutinins in birds and small rodents in northern california, 1975-76.	serum samples from 15 species of rodents and 33 species of birds were tested for agglutinins against coxiella burnetii by the microagglutination test. of 759 rodents tested, 21 (3%) were seropositive. antibody positive rodents included muskrats, ondatra zebethica, (11%), rattus spp. (10%), beechey ground squirrels, otospermophilus beecheyi, (6%), wood rats, neotoma fuscipes, (5%), and peromyscus spp. (2%). of 583 birds tested, 118 (20%) were seropositive. this included white crowned sparrows, zo ...	1979	522220
tyzzer's disease in muskrats: re-examination of specimens of hemorrhagic disease collected by paul errington.	organisms typical of those seen in tyzzer's disease of muskrats (ondatra zibethica) were found in tissue sections from two muskrats found dead in iowa in 1947 by paul errington. these findings support further the hypothesis that errington's and tyzzer's diseases of muskrats are a single entity.	1979	522221
[parasitic fauna of the muskrat from the upper ob' pine forest].	the gamasid mites laelaps multispinosus and hirstionyssus isabellinus, flea ceratophyllus (megabotris) rectangulatus, trematodes plagiorchis proximus, p. eutamiatis, p. obensis, p. multiglandularis, quinqueserialis quinqueserialis and opisthorchis felineus, cestodes aprostotandria macrocephala and alveococcus multilocularis, larvae, were found in 78 specimens of ondatra zibethica from water bodies of the upper ob pine forest. the mite l. multispinosus is reported as the most abundant ectoparasit ...	1977	593723
tyzzer's disease in muskrats: occurrence in free-living animals.	tyzzer's disease was diagnosed in four muskrats (ondatra zibethica) found dead over a 2 month period in a single feed-house in a saskatchewan marsh. no dead animals were found elsewhere in the marsh, although several hundred apparently healthy animals were trapped during this period. similarities in the pathology and epizootiology of tyzzer's and errington's diseases of muskrats support an hypothesis that these diseases are a single entity.	1978	691125
[first results of an investigation on trichinosis in wildlife in france (1976--1977) (author's transl)].	201 red foxes, 18 brown rats, 1 muskrat, 1 red squirrel, 1 wood mouse, 8 hares, 3 rabbits, 2 wild boars, 4 roe deers, 1 chamois, 3 reindeers (for farming) were examined by peptic digestion to detect trichinosis. eight foxes captured in the east and south-east of france were found infested by this parasite.	1978	742806
contribution to the pathology of strobilocercosis (strobilocercus fasciolaris) in the liver of man and some animals.	tissue reactions with liver strobilocercosis were studied in man, pheasant and muskrat on the basis of histological examination. microscopical changes in the liver induced by completely developed and still quite vital strobilocerci are very similar in all these hosts and in all cysts the parasite was enveloped by a fibrous capsule consisting of two layers. the development of regressive changes and the character of tissue reaction during the death of the parasite are discussed. strobilocercus fas ...	1977	856684
tyzzer's disease in wild-trapped muskrats in british columbia.	a diagnosis of tyzzer's disease (bacillus piliformis infection) was made in a group of recently-trapped muskrats (ondatra zibethica). the major lesions consisted of enteritis and focal necrosis of the liver, with organisms resembling b. piliformis in hepatocytes on the periphery of these foci. the outbreak was associated with recent capture, housing, and the use of sulfaquinoxaline-medicated feed.	1977	864842
experimental chlamydiosis in wild and domestic lagomorphs.	chlamydia psittaci (strain m56, the agent of epizootic chlamydiosis of muskrats and hares) was highly lethal for the snowshoe hare (lepus americans) following intravenous inoculation, whereas the agent was much less virulent for cottontail (sylvilagus floridanus) and albino domestic rabbits (oryctolagus cuniculus). tissue titres of strain m56 were generally higher after 96 hr in the snowshoe hare than in tissues of the other lagomorphs. spleen, liver and bone marrow were apparently the chief sit ...	1976	933312
[behavior and sociology of the muskrat (ondatra zibethicus l.)].	this description of the behaviour of the muskrat is the result of observations made in open-air pens and during the rearing of young animals in direct contact with man. the approximately 100 muskrats observed came from southern lower saxony (population immigrated down the river elbe). as the same facilities of observation had been used to study brown rats, it was possible to compare the behaviour of both species which showed fundamental differences.	1976	986736
[comparative study in structure of myoglobins in semiaquatic animals: castor fiber, ondatra zibethica, lutra lutra].	a degree of similarity in the structure of myoglobins in the semiaquatic animals (beaver, muskrat, otter) is shown by the finger-print method with the determination of amino acids content in peptides. it is established that about 2/3 of the acid sequence in the investigated myoglobins are invariable. an assumption is advanced that these regions of the structure are of most importance in the functional respect.	1975	1216340
selenium in fly ash.	selenium, at concentrations exceeding 200 parts per million (ppm) (dry weight), has been found in white sweet clover voluntarily growing on beds of fly ash in central new york state. guinea pigs fed such clover concentrated selenium in their tissues. the contents of the honey stomachs of bees foraging on this seleniferous clover contained negligible selenium. mature vegetables cultured on 10 percent (by weight) fly ash-amended soil absorbed up to 1 ppm of selenium. fly ashes from 21 states conta ...	1976	1251212
the primary structure of muskrat pancreatic ribonuclease.	pancreatic ribonuclease from muskrat (ondatra zibethica) was isolated and its amino acid sequence was determined from tryptic digests of the performic acid-oxidized and the reduced and aminoethylated enzyme. the peptides have been positioned in the sequence by homology with other ribonucleases. this could be done unambiguously for all peptides except arg-arg (tentative position 32-33) and ser-arg (tentative position 75-76). the amino acid sequences of the peptides were determined by the dansyl-e ...	1976	1279085
the ecology of tularaemia.	tularaemia, a zoonotic disease caused by the bacterium francisella tularensis mccoy, 1912, is reported from north america, europe and northern parts of asia, but not from the southern hemisphere. two subspecies of f. tularensis are recognised: the highly virulent type a and the milder type b, with additional subdivisions reported. tularaemia has been reported in more than 250 animal species including man, other mammals, birds, fish, amphibians, arthropods and protozoa. type a is reported to have ...	1992	1305858
muskrats as carriers of pathogenic leptospires in the netherlands.	leptospires were isolated from 24 of 327 (7%) muskrats (ondatra zibethicus) caught in the netherlands. all isolates were identified as leptospira interrogans. one isolate was typed as serovar copenhageni in the icterohaemorrhagiae serogroup, one as serovar lora in the australis serogroup. twenty-one isolates showed a close relationship with serovars grippotyphosa, valbuzzi, muelleri and ratnapura from the grippotyphosa serogroup. one isolate was lost. sera from 196 muskrats were examined by the ...	1992	1315497
[the systemic and regional hemodynamics of laboratory rats and wild muskrats during diving].	1-min forceful immersion in water increased mean arterial pressure by 24% in ondatra, decreased their heart rate by 71% and cardiac output by 36% respective figures in wistar rats were as follows: 19%, 62%, and 46% decrease. by the 50th sec of immersion cerebral blood flow increased 13-fold in ondatra and 6-fold in wistar rats.	1992	1334880
use of dna fingerprinting to determine parentage in muskrats (ondatra zibethicus).	the detection of high levels of genetic variability by dna fingerprinting probes has allowed researchers to accurately assess relatedness. multiple-mating strategies are characteristic of the mating systems of small mammals. as such, techniques that provide an accurate indication of how individuals are related genetically is of great importance to assess the mating system of a species. in this study, we applied the dna fingerprinting technique to captive and wild muskrats (ondatra zibethicus) to ...	2006	1401879
[comparative analysis of spatial organization of myoglobins. ii. secondary structure].	an analysis of probability of distribution curves of alpha-helical sites and bends of polypeptide chains of myoglobins in half-water mammals (beaver, nutria, muskrat, otter) carried out in comparison with those of myoglobins of the horse and sperm whale (x-ray diffraction analysis has revealed their tertiary structure) has revealed a coincidence of the secondary structure sites end bends of the chain in the studied respiratory hemoproteins of muscles. despite a considerable number of amino acid ...	1992	1413113
inuvialuit food use and food preferences in aklavik, northwest territories, canada.	annual frequency of use of 32 species of mammals, fish, birds and plants was examined among 36 (43% of all) inuvialuit households in aklavik, nwt. degree of preference for each of 34 traditional and 12 store-bought foods was examined among 36 adults and 35 (83% of all) inuvialuit school children ages 10-16 years, using a likert-type scale. traditional foods were used on average 676 +/- 464 (mean +/- s.d.) times per year, the most frequent being caribou (145, mean), beluga whale (74), hares (35), ...	1992	1463555
[the electrical activity of the neocortical neurons of muskrats in hypoxia].		1991	1668664
primary afferent projections from the upper respiratory tract in the muskrat.	the central projections of the ethmoidal, glossopharyngeal, and superior laryngeal nerves were determined in the muskrat by use of the transganglionic transport of a mixture of horseradish peroxidase (hrp) and wheat germ agglutinin (wga)-hrp. the ethmoidal nerve projected to discrete areas in all subdivisions of the ipsilateral trigeminal sensory complex. reaction product was focused in ventromedial portions of the principal nucleus, subnucleus oralis, and subnucleus interpolaris. the subnucleus ...	1991	1714922
giardiasis.	giardiasis is one of the most common pathogenic intestinal protozoal infections worldwide. giardia lamblia is the most frequently identified etiologic agent in outbreaks associated with the ingestion of surface water, often due to ineffective filtration or pretreatment. in addition to humans, other sources of infection include beavers, perhaps muskrats, and possibly domestic animals. a low infecting dose (10 to 25 cysts) is reported to be sufficient to produce human infection. clinical manifesta ...	1992	1735095
trigeminal mediation of the diving response in the muskrat.	stimulation of the nasal cavity elicits powerful cardiorespiratory responses similar to the diving response. in the present study, bradycardia and apnea were elicited in muskrats by stimulation of the nasal cavity with ammonia vapors. these responses could be blocked by injections of 2% lidocaine made bilaterally into the medullary dorsal horns of the trigeminal sensory complex. however, the bradycardia due to activation of the baroreceptor reflex with intravenous phenylephrine was retained. the ...	1991	1760738
stereotaxic atlas of the brainstem of the muskrat, ondatra zibethicus.	the muskrat is an aquatic rodent of moderate size and possesses dramatic respiratory and cardiovascular behaviors in response to submersion, stimulation of the upper respiratory tract, or environmental cues. this report provides a stereotaxic atlas of the muskrat's brainstem in the transverse plane to facilitate studies requiring an accurate localization of discrete brain structures. plates are presented of brainstem sections between the obex and superior colliculus separated by 450 microns. eac ...	1991	1868351
calcium uptake by mitochondria isolated from muskrat and guinea pig hearts.	subsarcolemmal and interfibrillar mitochondria were isolated from the hearts of the diving muskrat and non-diving guinea pig and direct and indirect measurements of calcium uptake were examined in vitro. the calcium-stimulated respiration rate and 45ca uptake were measured and found to be greater in muskrat than in guinea pig mitochondria. muskrat mitochondria were able to endure a greater external calcium concentration than guinea pig mitochondria before exhibiting indications of inner membrane ...	1991	2061704
myosin atpase activity of muskrat, guinea pig and rat hearts.		1990	2157790
prevalence of giardia spp. in beaver and muskrat populations in northeastern states and minnesota: detection of intestinal trophozoites at necropsy provides greater sensitivity than detection of cysts in fecal samples.	surveys of the prevalence of the intestinal protozoan giardia spp. in animal populations have relied almost exclusively on the detection of cysts in fecal samples. we have determined the prevalence of giardia spp. in beaver and muskrat populations in four northeastern states and minnesota by using both the detection of trophozoites in mucosal scrapings from live-trapped animals at necropsy and the detection of cysts in fecal samples collected from kill-trapped animals. in muskrats the prevalence ...	1990	2178552
giardia sp.: comparison of electrophoretic karyotypes.	species in the genus giardia have been named on the basis of host specificity, cell dimensions, and median body morphology. despite these criteria, the species taxonomy of giardia is still in question. to investigate giardia taxonomy on a molecular level, giardia chromosomal dna was analyzed by orthogonal-field-alternation gel electrophoresis (ofage) and transverse alternating field electrophoresis (tafe). chromosomal dna of g. duodenalis isolates (human, muskrat, sheep, dog, beaver), g. muris ( ...	1990	2226707
controlled bradycardia induced by nasal stimulation in the muskrat, ondatra zibethicus.	respiration was disrupted and bradycardia induced in anesthetized muskrats by stimulating the nasal cavity with a stream of either water or various concentrations of ammonia vapors. when responses induced by either ammonia or water were compared, ammonia vapors were considered preferable because the responses could be maintained reliably through relatively rapid periods of stimulation, and the post-stimulus recovery of heart rate and respiration was more predictable. moreover, the bradycardia in ...	1990	2229892
comparison of respiration in rat, guinea pig and muskrat heart mitochondria.	1. subsarcolemmal and interfibrillar mitochondria were isolated from the hearts of the diving muskrat and non-diving guinea pig and rat. respiration rates, respiratory control ratio (rcr) and phosphorous to oxygen (p:o) ratios determined. 2. there was no significant difference in these values among the three species or between mitochondrial populations. 3. mitochondrial yield as measured by citrate synthase of whole heart homogenates was greatest in the rat, intermediate in the muskrat and lowes ...	1990	2253469
susceptibility of wild mammals to infection with naegleria fowleri.	animals of 4 families of small wild mammals were live-trapped and inoculated intranasally with naegleria fowleri to determine patterns of susceptibility. of the 7 species of animals examined, only rodents were susceptible to n. fowleri. susceptible animals were eastern gray squirrel, hispid cotton rat, muskrat, and house mouse. mammals that were not susceptible at a dose of 10(6) were opossum, raccoon, and eastern cottontail rabbit. perhaps rodents and humans share a common anatomical or physiol ...	1990	2254821
ribonuclease in different chromosomal species of the mole rat, superspecies spalax ehrenbergi: concentration in the pancreas and primary structure.	ribonucleases are found in considerable quantities in the pancreas of a number of mammalian taxa and a few reptiles. the ribonuclease content varies greatly in different species. large quantities are found in ruminants and species that have a ruminant-like digestion and in a number of species with coecal digestion. this is a response to the necessity of digesting large amounts of rna derived from the microflora of the stomach of ruminants or species with ruminant-like digestion or of the coecum ...	1990	2309013
homovanillic acid, vanillylmandelic acid and 5-hydroxyindole-3-acetic acid are undetectable in urine of the muskrat.		1985	2414020
[effect of muskrat on the cardiovascular system in anesthetized dogs].	muskrat and musk are secretions from the fragrant glands of male adult musk-rat (ondatra zibethica) and musk-deer respectively. in this paper, the pharmacological effects of muskrat and musk are studied. the result shows that a dose of 24 mg/kg iv of muskrat or musk can decrease the hr, map, lvp, lvdp/dt max and tpr in anesthetized dogs. but muskrat has an effect of reducing mho while musk has not. in addition, an injection of 120 mg/kg of muskrat or musk endures hypoxia in mice. but this functi ...	1989	2505807
genetic diversity of avian and mammalian chlamydia psittaci strains and relation to host origin.	genetic relationships were reported for chlamydia psittaci derived from psittacine birds, pigeons, turkeys, humans, cats, muskrats, cattle, and sheep and for c. trachomatis, including representative strains of the three biovars, through physical analysis of genomic dna including dna fingerprinting with restriction endonuclease sali, dna-dna hybridization in solution with s1 nuclease, and southern analysis with genomic dna probes. a total of 26 strains were divided into four groups of c. psittaci ...	1989	2565333
high-resolution electron microscopic evidence for the filamentous structure of the cyst wall in giardia muris and giardia duodenalis.	high-resolution morphological studies of the cyst wall of giardia spp. were performed using low-voltage scanning electron microscopy (lvsem) and transmission electron microscopy (tem). the cyst wall was composed of membranous and filamentous layers. the membranous layer consisted of an inner and an outer cyst membrane separated by a thin layer of cytoplasm. the filamentous layer contained individual filaments that ranged from 7 to 20 nm in diameter when measured by lvsem, formed a dense meshwork ...	1989	2795382
the density of beta-adrenoreceptors in cardiac muscle membranes of muskrats and guinea pigs.	1. cardiac membranes were prepared and then incubated with a range of concentrations of the beta-adrenergic ligand, dihydroalprenolol. specific binding to the receptor was measured and receptor density and binding affinities were determined. 2. the receptor density was about 40% greater in the guinea pig heart than in the muskrat heart. the reduced beta-receptor density in the muskrat heart helps explain the previous findings of a lesser pumping ability and decreased responsiveness to isoprotere ...	1988	2850964
glucose oxidation and oxygen consumption of isolated guinea pig and muskrat hearts.	glucose in krebs-henseleit buffer was presented to isolated langendorff perfused muskrat and guinea pig hearts that were paced at 240 beats/min. glucose uptake (amount removed from the perfusion fluid) was 3 times greater in the muskrat hearts than in the guinea pig heart. glucose oxidation (amount converted to co2) and oxygen consumption did not differ in the hearts of the two species. when glucose is the only exogenous substrate, isolated muskrat hearts extract more glucose than guinea pig hea ...	1987	2881679
[arterial vascularization of the intestine of the muskrat (ondatra zibethicus)].		1988	3052171
[comparative studies on the pharmacological activities of muskrat and musk].		1988	3058347
cross-species transmission of giardia spp.: inoculation of beavers and muskrats with cysts of human, beaver, mouse, and muskrat origin.	giardia cysts isolated from humans, beavers, mice, and muskrats were tested in cross-species transmission experiments for their ability to infect either beavers or muskrats. giardia cysts, derived from multiple symptomatic human donors and used for inoculation of beavers or muskrats, were shown to be viable by incorporation of fluorogenic dyes, excystation, and their ability to produce infections in the mongolian gerbil model. inoculation of beavers with 5 x 10(5) giardia lamblia cysts resulted ...	1988	3063208
the muskrat in biomedical research.	muskrats are aquatic rodents of moderate size which are plentiful throughout north america, but are not used commonly in the laboratory. recently, we tested the feasibility of muskrats as experimental models and have found them to be acquired and cared for easily in conventional laboratory animal facilities. some of their natural characteristics and diseases are described. the husbandry techniques that we used are presented and form a base for the preparation of future guidelines for the mainten ...	1988	3065574
effects of co2 inhalation on acid-base balance and thermal recovery following cold water dives by the muskrat (ondatra zibethicus).	thermoregulatory, cardiac, and blood gas responses of muskrats to co2 inhalation were examined during recovery from controlled dives in 3 degrees c water. it was shown that co2 levels previously recorded in the winter lodges of this species are sufficient to reduce postdive oxygen consumption and rate of rewarming in unrestrained animals. postdive exposure to 5-10% co2 reduced recovery of abdominal and subcutaneous temperature (tb) in the middorsal lumbar region, but did not affect interscapular ...	1986	3088072
corrections in the names of rodent coccidia (apicomplexa, coccidiasina).	the following new taxonomic combinations are introduced for coccidia whose names were previously given erroneously: dorisa bengalensis (bandyopadhyay & ray, 1982) n. comb. from the indian palm squirrel funambulus pennanti in india; eimeria sicistae from the intestine of the birch mouse sicista tianschanica in the ussr; e. hydrochaeri carini, 1937 emend. from the capybara hydrochaerus hydrochaerus in south america; frenkelia sp. (doby, jeannes & rault 1965) from the brain of the water vole arvico ...	1987	3123645
ultrastructural evidence for the presence of bacteria, viral-like particles, and mycoplasma-like organisms associated with giardia spp.	giardia trophozoites and cysts, isolated from mammalian and avian hosts, were examined by transmission electron microscopy (tem), scanning electron microscopy (sem), and by fluorescent light microscopy for the presence of microbial symbionts. mycoplasma-like organisms were observed on the surfaces of trophozoites isolated from the prairie vole, laboratory rat, and beaver. intracellular bacteria were observed by tem in the trophozoites and cysts of g. microti and by fluorescence microscopy in tro ...	1988	3284999
arterial blood supply to the stomach of the muskrat (ondatra zibethicus).		1988	3291640
experimental infection of the squirrel (sciurus vulgaris) and the muskrat (ondatra zibethica) with tahyna virus (california group, bunyaviridae).	two squirrels aged 16 weeks and three muskrats aged 24 weeks were subcutaneously infected with a dose of 400 smicld50 of the extraneurally passaged "236" strain of tahyna virus. viremia was detected in one squirrel (48 and 96 hours post infection) and in two muskrats (24 and 48 hours p.i.). seroconversion was demonstrated by plaque-reduction neutralization test (prnt) 21 days p.i. in all animals.	1987	3297950
[parasites in east germany. 8. helminths of ondatra zibethica].	in 1984/85 80 muskrats have been investigated by helminthological autopsy. helminth infection was established in 72 animals. altogether 4 trematodes, 7 cestodes and 2 nematodes were found. 2 cestodes were detected for the first time in the muskrat. relations between parasite fauna and biotope are recognizable.	1987	3300434
presence of giardia spp. and absence of salmonella spp. in new jersey muskrats (ondatra zibethicus).	of 220 muskrat fecal specimens collected from 12 sites in southwestern new jersey, 154 (70%) were found to contain cysts of the protozoan parasite giardia spp. cysts from selected muskrat fecal specimens infected mongolian gerbils, but attempts to cultivate trophozoites removed from these gerbils were unsuccessful. salmonella spp. were not detected in any of the muskrat fecal specimens.	1987	3310886
immunochemical diversity of the major outer membrane protein of avian and mammalian chlamydia psittaci.	immunochemical properties of the major outer membrane protein (momp) of 16 strains of chlamydia psittaci isolated from psittacine birds, budgerigars, a pigeon, turkeys, humans, cats, a muskrat, sheep, and cattle and a strain of c. trachomatis, l2/434/bu, were compared by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and by immunoblotting analysis with hyperimmunized rabbit antisera to strains of parrot, turkey, feline, and bovine origin. the momps of the strains showed variation in m ...	1988	3366861
isolation of members of the haemophilus-pasteurella-actinobacillus group from feral rodents.	46 feral rodents, including a common vole (microtus arvalis), house mice (mus musculus), muskrats (ondatra zibetica), house rats (rattus rattus) and brown rats (r. norvegicus) were examined for bacteria of the haemophilus-pasteurella-actinobacillus group. haemophilus spp. (only m. musculus examined) were not obtained. all animal species were found contaminated by p. pneumotropica and/or actinobacillus spp. almost all m. musculus (96%) and most rattus spp. (76%) were contaminated by p. pneumotrop ...	1986	3512906
[intermediate host of the trematode quinqueserialis quinqueserialis (trematoda, notocotylidae) in the ussr and the morphology of its parthenitae and larvae].	a high infection rate of muskrat with the trematode q. quinqueserialis was recorded in pribaikalje. its intermediate host is the mollusc gyraulus (anisus) stroemi. morphology and biology of parthenites and larval phases of the development are studied and characters of the biology of this trematode are found out.	2007	3528992
[a new natural intermediate host of echinococcus multilocularis in france: the muskrat (ondatra zibethicus l.)].	the musk rat is a natural intermediate host of echinococcus multilocularis in the territoire de belfort (east france). its role in a selvatic cycle is discussed. when hunted, it can transmit the parasite to man, through dog infection.	1986	3545032
the primary structure of the hemoglobin alpha-chain of the arctic ground squirrel.	the amino acid sequence of the alpha-chain from the arctic ground squirrel citellus parryii) is reported. the tryptic peptides prepared from the hemoglobin were isolated by reverse phase hplc and sequenced. data from the tryptic peptides were supported by that from cyanogen bromide peptides and acid cleavage peptides which were partially sequenced. comparison with other rodent alpha-chains shows 15 differences with mouse, 20 with rat, 25 with muskrat, 16 with mole rat, 33 with the guinea-pig and ...	1987	3608432
prevalence of giardia sp. in a beaver colony and the resulting environmental contamination.	the prevalence of giardia sp. in a beaver (castor canadensis) colony in colorado was determined by the collection and analysis of fecal samples over a period of 14 mo. environmental contamination was monitored through the use and analysis of water filter samples. beaver shed cysts of giardia sp. in their feces throughout the year with temporal variations in the prevalence, and became infected as kits and remained infected as juveniles and adults. beaver served as amplification hosts for giardia ...	2013	3682082
occurrence of campylobacter jejuni and giardia species in muskrat (ondatra zibethica).	a total of 189 muskrat fecal samples were surveyed for campylobacter and giardia species. campylobacter jejuni was recovered from 47.5% of these samples, and giardia species were detected in 82.5%. these findings indicate that muskrat may be of importance to the health both of humans and of domestic animals.	1985	3896141
[the susceptibility of the muskrat to the virus of tick-borne encephalitis].		1966	4167339
[some observations on behavior of the adrenergic system in the muskrat ondatra zibethica l].		1967	4167709
[muskrat--a natural carrier of toxoplasma].		1973	4204005
agents of psittacosis-lymphogranuloma venereum group isolated from muskrats and snowshoe hares in saskatchewan.	agents lethal to chicken embryos and mice were isolated from the blood and spleen of 2 muskrats and 2 snowshoe hares which died during the cataclysmic die-off of 1961 in central saskatchewan. the 4 isolates are probably identical. one of them was identified as a member of the psittacosis-lymphogranuloma venereum (plv) group of organisms on the basis of morphological and tinctorial properties and on the possession of group specific antigens. application of the method of specificity differences pe ...	1966	4226345
the susceptibility of muskrats and snowshoe hares to experimental infection with a chlamydial agent.	muskrats (ondatra zibethicus) and snowshoe hares (lepus americanus) were exposed experimentally by various routes to a chlamydial agent (designated strain m56) originally isolated during a die-off of muskrats and snowshoe hares which occurred in saskatchewan during 1961. both species were susceptible to experimental infection. whereas m56 was highly lethal for snowshoe hares (18 deaths/19 exposed), it was less virulent for muskrats (6 deaths/20 exposed). the degree of susceptibility of muskrats ...	1970	4246008
dracunculus insignis (leidy, 1858) and larval eustrongylides sp. in a muskrat from ontario, canada.		1972	4261033
properties of a chlamydia psittaci isolated from muskrats and snowshoe hares in canada.		1971	4328689
energy metabolism of oiled muskrats.		1974	4420701
[experimental mixed infection in muskrats (omsk hemorrhagic fever and tularemia)].		1974	4613000
occurrence of some helminth parasites in the muskrat, ondatra zibethicus, from crawford county, kansas.		1972	4667884
klebsiella infection in muskrats.		1973	4742083
role of environment in the population dynamics of the muskrat in yakutia.		1974	4825908
the muskrat as reservoir in natural foci of adiaspiromycosis.		1974	4836175
tularemia epidemia: vermont, 1968. forty-seven cases linked to contact with muskrats.		1969	4891088
leptospira interrogans serotypes ballum and grippotyphosa isolated from the muskrat.		1972	5007902
initiation of diving bradycardia in muskrats.		1972	5033459
seasonal metabolic organization in the muskrat (ondatra zibethica). i. changes in growth, thyroid activity, brown adipose tissue, and organ weights in nature.		1971	5113544
[characteristics of the adrenergic apparatus of adipose tissue in muskrat mammary glands].		1971	5153366
tyzzer's disease in muskrats.		1971	5163737
the mitotic and meiotic chromosomes of the muskrat (ondatra zibethica l.).		1969	5354236
yersinia philomiragia sp. n., a new member of the pasteurella group of bacteria, naturally pathogenic for the muskrat (ondatra zibethica).	a bacterium experimentally pathogenic for muskrats (ondatra zibethica), white mice, mountain voles (microtus montanus), and deer mice (peromyscus maniculatus) was isolated from the tissues of a sick muskrat captured on the bear river migratory bird refuge (brigham city, utah) and from four surface water samples collected within 15 miles of that point. in culture, the cells are chiefly coccoid, but in the tissues of muskrats and voles they resemble the bizarre forms of yersinia pestis, except for ...	1969	5361214
[non-icteric leptospirosis associated with water contaminated by muskrats].		1969	5392893
[composition of muskrat and guineda-pig milk].		1969	5396701
[the afferent innervation of muskrat mammary glands].		1969	5404177
[muskrats, ondatra (fiber zibethicus, linnaeus), carriers in france of various leptospirian serotypes: isolation of the 1st french strain related to the hebdomadis serogroup].		1969	5409111
a survey of helminths of the muskrat, ondatra z. zibethica miller, 1912, in portage county, ohio.		1967	5624878
synhimantus (nematoda) associated with gastric squamous tumors in muskrats.		1968	5689986
[leptospirosis among muskrats in the primorsk region].		1968	5735284
the effect of protein intake on maximum urine and renal tissue water-solute concentrations in the muskrat (ondatra zibethica osoyoosensis, lord).		1968	5758863
+listeria carrier state in muskrats].		1966	5990506
[studies on the distribution of rabies in muskrats (ondatra zibethica l.) in a biotope of the usedom island].		1966	5998338
the chromosomes of the muskrat.		2003	6006810
ptyalincola ondatrae, gen. et sp. n. (trematoda: brachylaimidae), a fluke inhabiting the salivary glands of muskrats.		1967	6035713
temperature-related nerve function in warm- and cold-climate muskrats.		1967	6054880
heart rate values for beaver, mink and muskrat.	1. implanted ecg transmitters were used to determine heart rates for several activities of beaver (castor canadensis), mink (mustela vison), and muskrat (ondatra zibethicus) under free-ranging laboratory conditions within an aquatic tank. 2. all three species exhibited bradycardia when diving but mink heart rates returned to pre-dive levels if the dive lasted greater than 30 sec. 3. heart rates for all other behaviours were significantly (p less than 0.05) higher than for diving and averaged abo ...	1982	6128113
muskrats and waterborne giardiasis.		1983	6133129
metabolic effects of swimming velocity and water temperature in the muskrat (ondatra zibethicus).	metabolic rates, vo2, were studied in four muskrats (ondatra zibethicus) swimming in a water channel at velocities of 0.2 to 0.75 m/s in water at temperatures of 25 and 30 degrees c. at both water temperatures, vo2 increased linearly with increasing swimming velocity. the vo2 was higher for muskrats swimming in water at 25 than 30 degrees c. the metabolic performance of swimming appears to be influenced by the interaction of swimming velocity and water temperature.	1983	6136374
[experimental animal information file: muskrats (suncus murinus)].		1983	6349547
[occurrence of natural tularemia foci in kamchatka].	the focus of tularemia in the ust-kamchatsky region belongs probably to the flood-plain and swamp type with muskrats and tundra voles being the main carriers. in autumn 1980 for the first time three cultures were isolated in this region: 1 from a tundra vole and 2 from muskrats. the presence of antibodies to tularemia antigen in norway rats was revealed in the passive hemagglutination test.	1983	6353814
[experimental animal information file: chromosomes of muskrats (suncus murinus)].		1984	6375576