experimental infection of domestic ferrets (mustela putorius furo) and siberian polecats (mustela eversmanni) with yersinia pestis.eight domestic ferrets (mustela putorius furo) and two siberian polecats (m. eversmanni) were inoculated subcutaneously with 12 to 1.2 x 10(7) yersinia pestis originally isolated during an epizootic of plague in white-tailed prairie dogs (cynomys leucurus) near meeteetse, park county, wyoming (usa) in 1985. none of the ferrets or polecats developed clinical signs of disease which suggested that black-footed ferrets (m. nigripes), a congener, also would be resistant to plague. all animals receivi ...19911920664
[superovulation induced by the administration of pmsg to mustelids].in this paper, we have attempted to use the technique of superovulation in mustelids. ermine (mustela erminea) and several species of ferret (mustela eversmanni, mustela putorius, mustela putorius furo [correction of hamster (putorius eversmanni, putorius putorius, putorius putorius furo)] have been used as experimental models. we have conducted a detailed study of superovulation and early embryonic development in animals of these species treated with pmsg [correction of gpms]. we have shown tha ...19979411315
susceptibility of the siberian polecat to subcutaneous and oral yersinia pestis determine if the siberian polecat (mustela eversmannii) represents a suitable model for the study of plague pathogenesis and prevention in the black-footed ferret (mustela nigripes), polecats were exposed to 10(3), 10(7), or 10(10) yersinia pestis organisms by subcutaneous injection; an additional group was exposed to y. pestis via ingestion of a plague-killed mouse. plague killed 88% of polecats exposed to y. pestis (71% mortality in the 10(3) group, 100% mortality in the 10(7) and 10(10) gr ...200111763738
pyometra in a siberian polecat (mustela eversmanni).a 2-year-old siberian polecat (mustela eversmanni) from a breeding colony presented for ultrasound evaluation for pregnancy. it was paired with a male for 2.75 months and had remained absent of pregnancy signs when it was anesthetized and clinically evaluated. until this time, the animal had eaten well and shown no outward signs of debility. on palpation, the animal had a fluid-filled tubular structure in the caudal abdomen, consistent in location and size with the uterus. no sign of vaginal dis ...199912086447
genetic diversity and fitness in black-footed ferrets before and during a bottleneck.the black-footed ferret (mustela nigripes) is an endangered north american carnivore that underwent a well-documented population bottleneck in the mid-1980s. to better understand the effects of a bottleneck on a free-ranging carnivore population, we used 24 microsatellite loci to compare genetic diversity before versus during the bottleneck, and compare the last wild population to two historical populations. we also compared genetic diversity in black-footed ferrets to that of two sibling specie ...200212407208
intrageneric diversity of the cytochrome b gene and phylogeny of eurasian species of the genus mustela (mustelidae, carnivora).to illuminate molecular phylogenetic relationships among eurasian species of the genus mustela (mustelidae, carnivora), we determined nucleotide sequences of the complete mitochondrial cytochrome b gene region (1,140 base pairs). molecular phylogenetic trees, constructed using the neighbor-joining and the maximum likelihood methods, showed the common topology of species relationships to each other. the american mink m. vison first branched off and was positioned very remotely from the other spec ...200018517304
phylogenetic relationships and divergence times among mustelids (mammalia: carnivora) based on nucleotide sequences of the nuclear interphotoreceptor retinoid binding protein and mitochondrial cytochrome b genes.phylogenetic relationships among 20 species-group taxa of mustelidae, representing mustelinae (mustela, martes, gulo), lutrinae (enhydra), and melinae (meles), were examined using nucleotide sequences of the nuclear interphotoreceptor retinoid binding protein (irbp) and mitochondrial cytochrome b genes. neighbor-joining and maximum-parsimony phylogenetic analyses on these genes separately and combined were conducted. while irbp performed better than cytochrome b in recovering more-inclusive clad ...200312655187
selective regimes and functional anatomy in the mustelid forelimb: diversification toward specializations for climbing, digging, and swimming.anatomical traits associated with locomotion often exhibit specializations for ecological niche, suggesting that locomotor specializations may constitute selective regimes acting on limb skeletal traits. to test this, i sampled 42 species of mustelidae, encompassing climbing, digging, and swimming specialists, and determined whether trait variation reflects locomotor specialization by performing a principal components analysis on 14 forelimb traits. in addition to brownian motion models, three o ...201729152182
morphological differentiation of the skull in two closely-related mustelid species (carnivora: mustelidae).alexei v. abramov, andrey yu. puzachenko, and igor l. tumanov (2016) a morphological differentiation (i.e., the amount of morphological space occupied) in two polecat species, mustela putorius and m. eversmanii, has been studied. these closely related species are similar in the body size, the age of origin, and many aspects of their natural history. we have used cranial characters to estimate some parameters of morphological diversity, to compare 'morphological niche breadth' occupied by polecat ...201631966146
trichinella spp. in wild mesocarnivores in an endemic setting.human trichinellosis and trichinella infection in pigs are both still endemic in the balkans, including serbia. because of the flow between the sylvatic and the domestic cycle of trichinella spp., monitoring wildlife has been recommended for the risk assessment of trichinella spp. infection in swine. we have previously shown the presence of trichinella infection in wild carnivores including the wolf and the golden jackal, and here we report on trichinella infection in several other mesocarnivore ...201930922087
reproductive cycle of the steppe polecat (mustela eversmanni).in laboratory conditions, in a natural photoperiod, testicular redevelopment began in late december. maximal testis size was attained by the end of february. testicular regression began in mid-may and was complete by the end of august. oestrus was first observed in late march and continued throughout april. females mated for the first time between 30 march and 8 april. mating generally coincided with peak concentrations of urinary oestrone conjugates and when vaginal lavages contained greater th ...19902156073
photomanipulation of sexual maturation and breeding cycle of the steppe polecat (mustela eversmanni) and other techniques for more rapid propagation of the species.twenty steppe polecats were divided into 2 groups, each consisting of 4 males and 6 females, and subjected to either a natural photoperiod (controls) or alternating periods of short (8 h light/16 hr dark for 8-9 weeks) and long days (16 h light/8 h dark for 16-20 weeks). the experimental photoperiod significantly accelerated sexual maturation in both sexes, with males developing maximal testis size within 57 days and females breeding after an average of 52 days exposure to 16l/8d. males in the e ...19902388043
a comparison of sevoflurane and isoflurane for short-term anesthesia in polecats (mustela eversmanni).twenty-four siberian polecats (mustela eversmanni) from 12 litters were anesthetized with either inhaled sevoflurane or isoflurane. with 7% delivered sevoflurane and 5% delivered isoflurane, time to loss of righting reflex (mean +/- se) with sevoflurane (1.9 +/- 0.1 min) was significantly shorter compared with isoflurane (2.6 +/- 0.1 min). during maintenance at a light plane of anesthesia, systolic arterial pressure was significantly higher with sevoflurane (83 +/- 2 mm hg) compared with isoflur ...19979365939
volatile compounds in anal gland of siberian weasels (mustela sibirica) and steppe polecats (m. eversmanni).the volatile constituents in anal gland secretions of two sympatric mustela species, the siberian weasel (m. sibirica) and steppe polecat (m. eversmanni), were studied by the headspace technique, followed by gas chromatography-mass spectrometry (gc-ms) analysis. nine sulfur-containing compounds were identified. they were 2,2-dimethylthietane, (z)- or (e)-2,4-dimethylthietane, (e)-2,3-dimethylthietane, 2-ethylthietane, (e)-2-ethyl-3-methylthietane, (z)-2-ethyl-3-methylthietane, 2-propylthietane, ...200212184403
possible coding for recognition of sexes, individuals and species in anal gland volatiles of mustela eversmanni and m. sibirica.with a combination of solvent extraction and gas chromatography-mass spectrometry, we found eight new compounds in the two sympatric mustela species, m. eversmanni and m. sibirica. these compounds had not been detected by headspace sampling with solvent desorption. two of the newly detected compounds are nitrogen-containing compounds, indole and o-aminoacetophenone and the remaining are sulfur-containing volatiles. by comparing same and opposite sexes between the two mustela species, we found th ...200312826534
the complete mitochondrial genome sequence of mustela eversmannii (carnivora: mustelidae).in this study, the complete mitochondrial genome of steppe polecat, mustela eversmannii, was sequenced for the first time using muscle tissue. the mitochondrial genome is a circular molecule of 16 463 bp in length and overall base composition is a (32.7%), t (27.3%), c (26.1%), and g (13.9%), which indicates a strong a-t bias. a phylogenetic analysis on the basis of 13 protein-coding genes and two rrna genes of 10 mustela species' mitochondrial genomes using maximum likelihood (ml) and bayesian ...201626367202
[effect of cryopreservation on the morphology of blastocysts of the ferret mustela eversmanni].in this study, we have undertaken an attempt to use the technique of cryopreservation of a mustelid embryo-sing mustela eversmanni as the experimental model. ferret blastocysts were frozen with glycerol or dmso. characteristic feature of blastocyst morphology, as well as changes in their ultrastructure after freezing and cryopreservation have been examined by techniques of light and electron microscopy. when glycerol was used, damage of ferret blastocysts induced by freezing was more significant ...19989884998
vaccination of black-footed ferret (mustela nigripes) x siberian polecat (m. eversmanni) hybrids and domestic ferrets (m. putorius furo)against canine inactivated canine distemper vaccine with adjuvant and a modified-live virus (mlv) vaccine were evaluated using black-footed ferret (mustegla nigripes) x siberian polecat (mustela eversmanni) hybrids us surrogates for endangered black-footed ferrets. for comparative purposes, we also vaccinated domestic ferrets (mustela putorius furo) with the mlv vaccine. response to vaccination was measured by clinical observation, hematology, dynamics of serum virus neutralizing antibodies, and challenge w ...19968827666
[wild mammals of the grand duchy of lithuania in the works of jean-emmanuel gilibert].among the many topics of lively scientific work that jean emmanuel gilibert (1741-1814) conducted in grodno and vilnius, an important place is occupied by his observations of wild mammals. royal patronage and care from antoni tyzenhauz, treasurer of the grand duchy of lithuania and the governor of grodno, allowed gilibert to keep and observe wild fauna captured by royal services in royal forests, including białowieża primeval forest. such was an origin of a female bison kept by gilibert in grodn ...201526445747
evaluation of oral and subcutaneous delivery of an experimental canarypox recombinant canine distemper vaccine in the siberian polecat (mustela eversmanni).we assessed the safety and efficacy of an experimental canarypox-vectored recombinant canine distemper virus (cdv) subunit vaccine in the siberian polecat (mustela eversmanni), a close relative of the black-footed ferret, (m. nigripes), an endangered species that is highly susceptible to the virus. siberian polecats were randomized into six treatment groups. recombinant canine distemper vaccine was administered s.c. at three dose levels (10(4.5), 10(5.0), and 10(5.5) plaque-forming units [pfu] p ...200312723797
the role of polecats of the genus putorius cuvier, 1817 in natural foci of adiaspiromycosis.adiaspiromycosis provoked by the fungus emmonsia crescens was diagnosed in two different species of polecats. in total, 76.2% of steppe polecats (putorius eversmanni) and 35.6% of dark polecats (p. putorius) were infected. the infection was not demonstrated at all in ferrets (p. furo) reared as fur animals. the differences found in the extent and intensity of infection in the two species of wild polecats are explained by different ecological requirements of these related carnivores. the habitat ...19751238314
the effect of the breeding season, cryopreservation and physiological extender on selected sperm and semen parameters of four ferret species: implications for captive breeding in the endangered black-footed the present investigation, comparative baseline information on selected sperm characteristics of ejaculate spermatozoa of the domestic (mustela putorius furo), fitch (mustela sp.) and black-footed ferrets (mustela nigripes) and the siberian polecat (mustela eversmanni) are presented. the main emphasis was to establish differences and similarities among these species in relation to semen and sperm quality during the breeding season, in cryopreservation success and in supporting sperm motility ...200919210927
noninvasive monitoring of fetal growth and development in the siberian polecat (mustela eversmanni).the siberian polecat (mustela eversmanni) is the preferred species to assess procedures and establish normative values for application in the related and endangered black-footed ferret (mustela nigripes). this study was undertaken to physically, ultrasonographically, and radiographically evaluate fetal development in a spontaneously breeding captive siberian polecat population. ultrasonographically, fetal sac enlargement allowed presumptive pregnancy detection as early as 12 days of gestation, t ...199810065851
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