Publications

TitleAbstractYear
Filter
PMID
Filter
endogenous mink (mustela vison) type c virus isolated from sarcoma virus-transformed mink cells.a previously described type virus stock (designated pp-1r), isolated by cocultivating baboon cells with mink cells transformed by kirsten sarcoma virus (64j1), has been further cloned and characterized. end point-diluted stocks of pp-1r have been obtained that are free of focus-forming activity and lack both kirsten sarcoma and primate type c viral sequences. nucleic acid hybridization experiments show that the cloned virus (milv) is an endogenous, genetically transmitted virus of the mink (mus ...197876684
characterization of a retrovirus isolated from normal mink cells co-cultivated with a dog mammary tumour.a retrovirus antigenically distinct from known type c, b and d viruses was isolated from normal mink (mustela vison) lung cells that had been co-cultivated with 5-iododeoxyuridine- and dexamethasone-treated dog mammary tumour cells. cytogenetic studies of the virus-releasing co-culture showed mitotic figures identical to the normal mink cell line (mvllu) with the exception of a low frequency of cells with extensive chromosomal breakage and uncoiling. the new virus bands at a buoyant density of 1 ...197983351
susceptibility of mink to certain viral animal diseases foreign to the united states.mink (mustela vison) were inoculated with viruses: african horse sickness (ahs), african swine fever (asf), bovine herpes virus ii (bhv2), foot-and-mouth disease (fmd), goat pox (gp), hog cholera (hc), peste des petits ruminants (ppr), rinderpest (rp), swine vesicular disease (svd), vesicular exanthema of swine (ves) and vesicular stomatitis (vs). their susceptibility was measured by development of clinical signs, virus isolation and detection of precipitin and/or virus neutralizing antibodies. ...1979228092
abnormal retino-geniculate and geniculo-cortical pathways in several genetically distinct color phases of the mink (mustela vison).several genetically distinct color phases of mink, which all show an abnormal reduction of pigment in the retinal pigment epithelium and which also show abnormalities of the retinofugal pathways, have been studied. autoradiographic methods have been used to demonstrate the retino-geniculate pathways, and retrograde degeneration or the retrograde transport of horseradish peroxidase has been used for the geniculo-cortical pathways. the retino-geniculate abnormality is mild in some of the color pha ...1979447875
[seasonal changes of testicular function in two mustelids : ferret (mustela furo l.) and mink (mustela vison s.) (author's transl)]. 1979501662
anaesthesia of the ranch mink (mustela vison) and ferret (mustela putorius furo). 1979538879
response of mink (mustela vison) to larval anisakis simplex (nematoda: ascaridida). 1977562861
staphylococcus aureus mastitis in nursing mink affected with aleutian disease.an outbreak of staphylococcal mastitis in nursing female ranch mink (mustela vison) is described. lesions were acute necrotizing mastitis, fatty infiltration of the liver and renal tubules, and adrenal cortical hyperplasia. the presence of aleutian disease in the herd suggests a role of immunosuppression in the outbreak.1979574903
hepatozoon sp. infection in mink from southwestern ontario.schizonts of hepatozoon sp. were found in the lungs of 10 of 18 (56%) mink (mustela vison). schizonts were located in microgranulomas within the pulmonary parenchyma, occasionally in peribronchiolar or perivascular sites.1975811814
paragonimus kellicotti infection in wild carnivores in southwestern ontario: i. prevalence and gross pathologic features.paragonimus kellicotti ward, 1908 was recovered from 16 of 105 mink (mustela vison), 14 of 244 striped skunks (mephitis mephitis), 10 of 446 red foxes (vulpes vulpes), 1 of 31 coyotes (canis latrans), 0 of 326 raccoons (procyon lotor) and 0 of 8 weasels (mustela spp.) collected from southwestern ontario. the majority of carnivores harboring p. kellicotti was collected from two counties (huron and bruce) bordering the east shore of lake huron where 6.0% of the animals (excluding raccoons) were in ...19751113433
paragonimus kellicotti infection in wild carnivores in southwestern ontario: ii. histopathologic features.pulmonary lesions associated with naturally acquired paragonimus kellicotti infection were studied in mink (mustela vison), striped skunks (mephitis mephitis), red foxes (vulpes vulpes) and a coyote (canis latrans). in ,ink a fibrous capsule was formed around mature flukes in dilated bronchioles or bronchi, and there was mild focal interstitial pneumonitis adjacent to fluke eggs in alveoli and migrating parasites. a thick wall, infiltrated heavily with mononuclear cells and eosinophils, surroun ...19751152176
two components of the pineal organ in the mink (mustela vison): their structural similarity to submammalian pineal complexes and calcification.the pineal complex in the mink (mustela vison) consists of a larger ventral and a smaller dorsal pineal. both organs contain pinealocytes, neurons, glial cells, nerve fibers and synapses in an organization characteristic of nervous tissue. the cellular elements are arranged circularly around strait lumina. these lumina correspond to the photoreceptor spaces of submammalian pineals. a 9 + 0-type cilium marks the receptory pole of the pinealocytes which may form an inner-segment-like dendrite term ...19921295547
characterization of a new hybrid mink-mouse clone panel: chromosomal and regional assignments of the glo, acy, np, ckbb, adh2, and me1 loci in mink (mustela vison).to expand the mink map, we established a new panel consisting of 23 mink-mouse clones. on the basis of statistical criteria (wijnen et al. 1977; burgerhout 1978), we developed a computer program for choice of clones of the panel. assignments of the following mink genes were achieved with the use of the hybrid panel: glyoxalase (glo), chromosome (chr) 1; acetyl acylase (acy), chr 5; creatine phosphokinase b (ckbb), chr 10; alcohol dehydrogenase-2 (subunit b) (adh2), chr 8. using a series of clone ...19921352156
hematological and plasma chemical characteristics in beech marten (martes foina).1. the normal values of hematological and clinical-chemical variables in plasma of 21 males and 27 females of beech marten (martes foina) have been illustrated and compared to corresponding normal values in mink (mustela vison) and ferret (mustela putorius). 2. the number of erythrocytes, the hematocrit value, and the hemoglobin concentration were higher in male than in female beech marten. 3. divergences according to age in the investigated variables have been found. 4. the erythrocytes in beec ...19921355036
a study of tobacco carcinogenesis xlviii. carcinogenicity of n'-nitrosonornicotine in mink (mustela vison).during tobacco processing and smoking, nicotine and nornicotine give rise to n'-nitrosonornicotine (nnn), a highly abundant, strong carcinogen. nnn is known to exert carcinogenic activity in mice, rats and hamsters. major target organs for nnn carcinogenicity in the rat are the esophagus and the nasal mucosa, and in the syrian golden hamster trachea and nasal mucosa. in comparison with the rat, the mink (mustela vison) has a markedly expanded nasal mucosa. therefore, we explored in this study wh ...19921423862
[homology between the lpm system of allotypes in the american mink and the gp system of allotypes in the domestic pig].the 5 alpha-macroglobulin allotypes alpha m1, alpha m2, alpha m3, alpha m4 and alpha m5 were identified in pig. the alpha m1 allotype was reported as a marker of pig alpha-macroglobulin, the latter being homologous to alpha 2-macroglobulins in human and in mink. the allotypes alpha m2-alpha m5 were specified as markers of the second isotypical variant of pig alpha-macroglobulins, which was homologous to mink lpm macroglobulin (alpha 1m). as seen from data obtained by international comparative te ...19911714847
[cloning and sequencing of immunoglobin lambda-chain cdna in american mink (mustela vison].cdna library in the lambda gt11 phage was constructed using poly (a+)-mrna from mink spleen as a template. immunoscreening of the library allowed the identification of 2 lambda-related clones containing 370 and 803 bp insertion (lambda igl-1 and lambda igl-2). analysis of the primary structure of lambda igl-2 demonstrated that it contains a large portion of v lambda-segment, j lambda-segment, c lambda-gene and its 3'-untranslated part. the nucleotide sequences known for the immunoglobulin genes ...19902124200
endogenous zinc excretion in relation to various levels of dietary zinc intake in the mink (mustela vison).endogenous zinc excretion was studied in adult male mink fed experimental diets for 73 d, including a collection period from d 69 to 73. dietary zinc levels were 2.8, 26 or 121 mg/kg wet weight. in accordance with the results of a methodological study, also reported here, the animals had an intramuscular injection of 65zncl2 12 d before the start of the collection period. total fecal (endogenous + unabsorbed) zinc excretion for d 69-73 in the three groups was 2.3, 20.4 and 91.0 mg. the endogenou ...19902199634
sarcocystis sp. in mountain goats (oreamnos americanus) in washington: prevalence and search for the definitive host.during october and november 1986, sarcocystis sp. was detected in 24 of 56 (43%) tongues from hunter-killed mountain goats (oreamnos americanus) in washington (usa). sarcocysts had an unusual sessile polyp-shaped branched wall. mean size of 154 sarcocysts was 71.3 x 37.8 microns (range, 20 to 248 x 10 to 120 microns), and the mean intensity was 2.3 (range, 1 to 28). in an attempt to identify the definitive host, infected tongues were fed to four coyotes (canis latrans), eight domestic dogs, four ...19892509738
subchromosomal localization and order of gla, pgk1, hprt, and g6pd loci on the x chromosome of the american mink (mustela vison).segregation of the x-linked mink markers alpha-galactosidase (gla), phosphoglycerate kinase-1 (pgk1), hypoxanthine phosphoribosyltransferase (hprt), and glucose-6-phosphate dehydrogenase (g6pd) was analyzed in hybrids of gamma-irradiated mink fibroblasts and chinese hamster cells and in hybrids of nonirradiated mink fibroblasts and mouse hepatoma cells. based on this analysis, the order of the four genes is gla-pgk1-hprt-g6pd on the mink x chromosome. cytogenetic analysis of five mink x chinese ...19882846237
[the distribution of 4 genes (alpha gal, pgk-1, hprt and g6pd) on the x chromosome of the american mink (mustela vison)].the segregation of x-linked markers (alpha gal, pgk-1, hprt and g6pd) was analysed in hybrids between gamma ray-irradiated mink fibroblasts and chinese hamster cells, or between mink cells and mouse hepatoma cells. based on the segregation data and the data of cytogenetics analysis of a few hybrids, the order of the mink genes was deduced as alpha gal--pgk-1--hprt--g6pd--qter. this order differs from that reported for human and murine genes, in spite of the very obvious similarity between g-band ...19882849577
genetic map of the american mink: gene conservation and organization of chromosomes. 19873298154
anatomical organization of the visual system of the mink, mustela vison.the organization of the retinogeniculocortical visual system of the mink was studied by anterograde and retrograde tracer techniques, by physiological mapping, and by direct recordings from axonal terminals after injection of kainic acid. in the lateral geniculate nucleus, retinogeniculate afferents are segregated according to eye of origin between the two principal layers, a and a1. within each of these layers there is a further parcellation according to functional type: on-center afferents ter ...19863016036
chromosomal localization of the gene coding for the beta-subunit of na+,k+-atpase in the american mink (mustela vison).the batp gene coding for the beta-subunit of na+,k+-atpase has been localized on chromosome 13 of the american mink (mustela vison) using mink-chinese hamster somatic cell hybrids and pig cdna clones as probes. the aatp gene for the alpha-subunit of na+,k+-atpase is on mink chromosome 2 [(1987) febs lett. 217, 42-44]. consequently, the aatp and batp genes for the na+,k+-atpase occupy separate mink chromosomes.19882841166
[serotonin receptors in the brain of animals selected for their domesticated type of behavior].participation was studied of central serotonin receptors of the first and second types in behaviour change of animals selected by the character of defensive reaction to man. serotonin receptors were determined by radioligand method by binding of the brain preparations 3h-serotonin and 3h-spiperone. an increase of c2 receptors number was found in the frontal brain cortex of the tame brown rats in comparison with the aggressive ones. differences were not found in specific c1-receptor binding in th ...19892816046
[genetics and evolution of the mink lpm-system. viii. characteristic changes in the antigenic structure of lpm-protein and alpha2- macroglobulin in mustelidae family].interspecific variability of the isotypic structure of two macroglobulins (lpm and alpha 2m) in mustelidae family was investigated using monospecific rabbit antisera against lpm and alpha 2m mustela vison. it was established that all the species studied may be divided into four groups, according to the degree of their homology with lpm: 1) m. vison; 2) m. altaica, m. erminea, kolonocus sibirica, putorius eversmany, p. putorius, luteola lutreola; 3) vormela peregusna; 4) martes martes, m. foina, ...19882461887
chronic corneal edema in aged ranch mink.chronic corneal edema occurred in 53% of 116 ranch mink (mustela vison) 8 to 11 years old. most were royal pastel females, the main group at risk. bilateral in 46 of 66 affected mink studied, the edema evolved over a month or so until the cornea became opaque, diffusely pale blue-gray or white, and greatly thickened. the swollen cornea did not become ulcerated, pigmented, or vascularized, even after it had been severely edematous for a year or two. the edema supervened as a consequence of sponta ...19873617398
[distribution of alpha 2m-globulin and lpm-protein in the organs and tissues of the american mink].distribution in the organs and tissues of two proteins of alpha-macroglobulin fraction, that differ in their antigenic structures, has been studied in the american mink. the both proteins (alpha 2m and lpm) are present in hepatocytes, in cells of the follicular epithelium of the ovary, in the thymic bodies, in the alveolar macrophages of the lungs and in the splenic lymphoid nodes. joint localization of alpha 2m and lpm is revealed in the connective tissue of all the organs examined. the excepti ...19882453189
interactions between melatonin and prolactin during gestation in mink (mustela vison).immature female mink, 8 weeks of age in july, were treated with implants releasing melatonin. mating, which induced ovulation, took place during the normal breeding season in the following march. circulating prolactin and progesterone concentrations did not undergo the expected gestational increases, and no embryos implanted. a similar absence of gestational changes in prolactin and progesterone values ensued in primiparous mink treated with the melatonin implant 2-3 days after the second of 2 m ...19902401973
regional assignment of the genes for tk1, galk, aldc, and esd on chromosome 8 in the american mink by chromosome-mediated gene transfer.a panel of clones of mink-chinese hamster somatic cell hybrids was analysed to obtain data for assigning the genes for thymidine kinase-1 (tk1), galactokinase (galk), subunit c of aldolase (aldc), and esterase d (esd) to specific mink chromosomes. the results demonstrate that the genes for tk1, galk, aldc and esd are syntenic and located on mink chromosome 8. prometaphase analysis of transformed mouse cells obtained by transfer of mink genes by means of metaphase chromosomes demonstrated the pre ...19853862931
mink-mouse interspecific hybridomas.mink-mouse interspecific hybridomas were produced by fusion of the american mink spleen cells with the nso cells. seven cloned lines of the mink-mouse hybridoma were isolated, and their functional mink ig secretion and karyological characteristics are given. during cytogenetic analysis of mink-mouse hybridoma cell lines, we observed the elimination of mink chromosomes, and inter- and intralineral variability of the numbers of the cells with particular quantities of mink dna. we did not find that ...19911937502
influence of dienestrol diacetate on reproductive performance of female mink (mustela vision). 19715115545
instinctive predatory behavior of mustelids (mustela putorius f. furo, mustela vison f. dom.) modified by benzodiazepine derivatives.the predatory behavior of the ferret and of the mink consists mainly of instinctive behavioral patterns that are elicited by simple external stimuli. an important stimulus is size of the prey; the time needed to catch and kill defensive prey depends on the size of the prey in relation to that of the predator. benzodiazepine derivatives like chlordiazepoxide or lorazepam affect the prey catching of both species significantly. drugged animals (2 mg/kg orally) need less time to overpower their prey ...19816113610
[activation of expression of two immunoglobulin sn-genes in the american mink with aleutian disease].110 ranch-raised minks were injected with the aleutian disease virus. allotypes of constant regions of gamma-heavy chains of the mink immunoglobulins secreted have been analysed during 3 months. activation of the expression of two markers (h3 and/or h4) up to minor or to nominal level (above 200 micrograms/ml) was observed. no such enhancement of expression of two other allotypes (h6 and h8) was found. the results suggest that the expression of two mink immunoglobulin ch genes induced by viral i ...19911916255
[the behavior of the x chromosomes in intra- and interspecific hybrid cells of murine teratocarcinoma pcc4azal].we have demonstrated that x chromosomes are reactivated in hybrids obtained by fusion of mouse pcc4azai teratocarcinoma cells (xo, 39hprt-) with splenocytes from mouse females heterozygous in hprt gene. these hybrids are capable of spontaneous differentiation. we also obtained similar interspecies hybrids of pcc4azai cells with bone marrow cells of the american mink. the majority of such hybrids remained undifferentiated, however, after long-term cultivation at high cell density they differentia ...19911857596
igg allotypes of the domestic mink: genetics, expression and evolution.a brief review summarized the results we obtained with the identification, analysis of population distribution, genetics, expression, and evolution of 12 igg allotypes in the american mink and several closely related mustelids. the american mink is a unique species with respect to expressed allotypic polymorphism of ig lambda chains. in contrast to the rabbit, human, mouse and rat, the phenotypic expression of igc gamma allotypes shows unusual variations which mask their true genetic relationshi ...19911817564
[comparative cytogenetic analysis of cells of mouse-mink inter-species hybridoma lines].the comparative cytogenetic analysis of the interspecific mouse-mink hybridoma cells revealed a segregation of the great number of the mink chromosomes, inter- and intraline variability according to the number of cells with the mink dna and its quantity in the cells. no characteristics of the mink chromosomal material distribution in the hybridoma cells which secreted the immunoglobulins of the american mink or lost its secretion were found. the great changes in the karyotype of the hybrid cells ...19911805468
b2-like repetitive sequence from the x chromosome of the american mink (mustela vison).in analysis of the repeats from the mink x chromosome (chr), we have identified a b2-like repetitive sequence of 195 base pairs (bp) flanked by short direct repeats of 14 bp. it contains regions homologous to the split intragenic rna polymerase iii promoter and a 3' a-rich region followed by an oligo(da) sequence. a feature of the repeat is the presence of a perfect polypyrimidine tract 22 bp in length absent from the known alu- and alu-like sequences. alignment of the mink b2-like sequence and ...19911797231
sarcocystis and other coccidia in foxes and other wild carnivores from montana.sarcocystis spp sporocysts were found in feces of 10.1% of 198 red foxes (vulpes vulpes), in 3.2% of 61 bobcats (lynx rufus), in 16.6% of 12 mountain lions (felis concolor), in 16.6% of 6 fisher (martes pennanti), and in none of 20 wolverines (gulo gulo), 4 mink (mustela vison), or 10 raccoons (procyon lotor). sarcocystis muris and toxoplasma gondii were not found in laboratory mice inoculated with feces of bobcats and mountain lions.19826816776
[interspecies mouse-mink hybridomas as producers of mink immunoglobulin].the work is aimed at establishing the interspecies mouse-mink hybridomas from the fusion of american mink b-lymphocytes with the murine cell line nso. the hybridoma (lime 10-b5) continued to secrete mink immunoglobulin l-chains in the culture for 6 months with constant reclonings. the hybridoma clone was characterized by a decrease in the secretory activity of cells. the karyological study et this clone has not reliably revealed the mink chromosomes in the genome of hybrid cells.19911796509
ultrastructure of the pineal gland of the mink (mustela vison).the pineal gland of the mink (mustela vison) was examined, using light and electron microscopy. its cellular structure was compared with that of the pineal gland in other mammalian species, including that of a close taxonomic relative, the ferret. the pineal gland of the mink was composed to pinealocytes and neuroglial cells, as well as numerous neuron cell processes and nerve endings, which provide extensive neural input to the pineal gland. a high degree of vascularity, extent of neural innerv ...19827103235
feed consumption and food passage time in mink (mustela vison) and european ferrets (mustela putorius furo).the amount of feed consumed per day and the rate of food passage was measured in mink and european ferrets. daily feed consumption averaged 40 and 42 g dry matter per kg body weight for male mink and ferrets and 53 and 49 g dry matter per kg body weight for female mink and ferrets, respectively. using ferric oxide as a feed marker, no differences were observed in food passage time between mink and ferrets or between males and females within each species. the mean time of food passage was 187 min ...19817265904
studies on nerves of the upper respiratory tract in the ferret and the mink.the central localization of the superior laryngeal nerve (sln), recurrent laryngeal nerve (rln) and pharyngeal nerve (phar) in the ferret (mustela putorius furo) and mink (mustela vision) was determined by neuronal tract tracing techniques. the anterograde transport of horseradish peroxidase (hrp)/wheat germ aggluttinin conjugated hrp mixtures (wga-hrp) revealed afferent fibres of the sln projecting ipsilaterally in the tractus solitarius (ts) before terminating in the ipsilateral nucleus of the ...19957540189
prevalence of antibodies to toxoplasma gondii in wild mammals of missouri and east central kansas: biologic and ecologic considerations of transmission.sera from 273 wild mammals from missouri and kansas (usa), collected between december 1974 and december 1987, were tested for the presence of antibodies to toxoplasma gondii using the sabin-feldman dye test. sixty-five (24%) had antibodies at titers of > or = 1:8, including 38 (66%) of 58 carnivores, 14 (15%) of 94 omnivores, 13 (11%) of 117 herbivores, and none of four insectivores. the prevalence of antibodies in mice (mus musculus and peromyscus spp.) and rats (rattus norvegicus and sigmodon ...19957563419
investigation of mink mhc (mhcmuvi) class i molecules by isoelectric focusing (ief).mink (mustela vision) class i leucocyte antigens, here abbreviated mhcmuvi according to the proposal given by klein et al. (1990), were characterized by isoelectric focusing (ief), using triton x-114-extracted and neuraminidase-treated membrane proteins from spleen cells, followed by immunoblotting and development with a murine monoclonal antibody raised against denatured major histocompatibility complex (mhc) class i antigens. muvi class i antigens were investigated in a group of 97 danish mink ...19911681893
experimental evaluation of mink and apodemus speciosus in the echinococcus multilocularis life-cycle in hokkaido, japan.the epizootiological status of mink (mustela vison) as definitive hosts and apodemus speciosus as intermediate hosts in the transmission of echinococcus multilocularis in hokkaido, japan, were evaluated by orally inoculating mink with protoscoleces, and a. speciosus with eggs of the cestode, respectively. no tapeworms were recovered from the alimentary tract of the mink, and no hydatid cysts were recovered from the viscera of the egg-inoculated a. speciosus. we conclude that mink and a. speciosu ...19921512885
[trichinelliasis in the wild and domestic animals of kamchatka province].the results of many years' observations and literature data allowed one to determine the species of wild and domestic mammalians, vectors of trichinelliasis in kamchatka. the variability of trichinelliasis prevalence in individual mammalian species were found in relation to their habitation place. significant fluctuations of the index are presented by years. cases of trichinelliasis in wild american minks (acclimatized species) and in pigs were noted.19921435527
coronavirus infection in mink (mustela vison). serological evidence of infection with a coronavirus related to transmissible gastroenteritis virus and porcine epidemic diarrhea virus.antibodies to a transmissible gastroenteritis virus (tgev)-related coronavirus have been demonstrated in mink sera by indirect immunofluorescence, peroxidase-linked antibody assays and immunoblotting. this is the first serological evidence of a specific coronavirus infection in mink. the putative mink coronavirus (mcv) seems to be widespread in the danish mink population with a prevalence approaching 100%. analysis by immunoblotting has shown that mcv is closely related to tgev by the spike (s), ...19921319622
the central localization of the vagus nerve in the ferret (mustela putorius furo) and the mink (mustela vison).the location of vagal preganglionic neurones (vpn) has been determined in nine ferrets (mustela putorius furo) and seven mink (m. vison) using neuronal tract-tracing techniques employing horseradish peroxidase (hrp) and wheat-germ agglutinin conjugated hrp (wga-hrp) mixtures injected into the nodose ganglion of the vagus nerve. labelled vpn were located ipsilaterally in the dorsal motor nucleus of the vagus (dmnx), nucleus ambiguus (na), and reticular formation (rf) of the medulla oblongata. in ...19937686926
isolation and cultivation of blastocyst-derived stem cell lines from american mink (mustela vison).ten embryonic stem (es) cell lines from mink blastocysts were isolated and characterized. all the lines had a normal diploid karyotype; of the ten lines studied, five had the xx and five had the xy constitution. testing of the pluripotency of the es-like cells demonstrated that 1) among four lines of genotype xx, and x was late-replicating in three; both xs were active in about one-third of cells of line mes8, and analysis of glucose-6-phosphate dehydrogenase revealed no dosage compensation for ...19921282024
anatomy of the retina of the mink (mustela vison).the retina of the normal pigmented mink has been studied by light and electron microscopy. this retina resembles the typical vertebrate retinia in its patterns of lamination and synaptic interconnectivity. rod and cone outer segments and receptor spherule and pedicle endings are found. at least two different types of horizontal cell processes are seen with the electron microscope, suggestive of rabbit a and b types. ribbon and conventional synapses are found in both plexiform layers; conventiona ...1977856884
seroprevalence of toxoplasma gondii in danish farmed mink (mustela vison s.).one hundred and ninety-five mink sera randomly selected from 17 danish mink farms were evaluated for the presence of toxoplasma gondii antibodies in the latex agglutination test. six (3%) sera contained t. gondii antibodies in titres of 1:64 or more. the estimated 3% prevalence means that 300,000 mink out of a total mink population of ten million might be infected with toxoplasma gondii. this large number of possible sero-positive mink in denmark indicates that there exists a potential risk of a ...19948091606
immunolocalization of scrapie amyloid in non-congophilic, non-birefringent deposits in golden syrian hamsters with experimental transmissible mink encephalopathy.transmissible mink encephalopathy (tme), a naturally occurring subacute spongiform encephalopathy in commercially ranch-reared mink (mustela vision), is characterized neuropathologically by spongiform changes in the neuropil, intracytoplasmic neuronal vacuolation and astrocytic hypertrophy and hyperplasia. amyloid deposits have not been observed in brain tissue sections from animals with natural and experimental tme using conventional histochemical stains such as congo red. to determine if amylo ...19938103204
metabolizable energy requirement for maintenance and body composition of growing farm-raised male pastel mink (mustela vison).the requirement of metabolizable energy (me) for maintenance was studied in 31 male pastel farm-raised mink. the procedure used was a body balance regression technique that included an initial baseline group, a group allowed feed ad libitum, and a group allowed feed at the level of 65% of average intake of the ad libitum animals. the requirement for me was 147.8 +/- 6.06 kcal/wtkg 0.734/day. this value falls within the range of estimates of maintenance requirements noted for younger animals of o ...1978722343
a syndrome of hereditary tyrosinemia in mink (mustela vison schreb.).a hereditary disease in mink (mustela vison schreb.) leading to death when the affected kits are about six weeks old has been investigated. the disorder is inherited as a simple autosomal recessive character. strongly elevated plasma tyrosine concentration is an outstanding feature of the disease. an enzyme defect in tyrosine aminotransferase (ec 2.6.1.5) or 4-hydroxyphenylpyruvate dioxygenase (ec 1.13.11.27) is considered together with the possibility of a parallel between the disease in mink a ...1979487250
the suprachiasmatic nucleus of the mink (mustela vison): apparent absence of vasopressin-immunoreactive neurons.the hypothalamic suprachiasmatic nucleus is centrally involved in generation of several circadian rhythms. neurons of the mammalian suprachiasmatic nucleus express a number of neuropeptides including vasopressin. the suprachiasmatic nucleus of the mink (mustela vison) is easily distinguished from neighbouring hypothalamic areas and the underlying optic chiasm as a small nucleus containing densely packed parvocellular neurons. a dorsal and ventral subdivision were clearly recognized within the mi ...19938364967
high plasma cholesterol in mink (mustela vison) without atherosclerosis.mink fed a commercial ration moderately high in cholesterol or fed a cholesterol-free semipurified diet have plasma cholesterol-free semipurified diet have plasma cholesterol concentrations similar to that found in human beings living in industrialized countries. in contrast with human beings, 80% of the plasma cholesterol in mink is carried in the high density lipoprotein fraction. aortas and coronary arteries from animals up to 8 yr old were found to be free of fatty streaks and atheroscleroti ...1977189781
protein sequence evidence for monophyly of the carnivore families procyonidae and mustelidae.the amino acid sequence of the eye lens protein alpha-crystallin a of the ring-tailed cat, bassariscus astutus, has been determined. the sequence of the bassariscus alpha a chain, which is 173 residues long, was compared with the previously determined set of 41 mammalian alpha a sequences. among the investigated carnivores (dog, cat, sloth bear, american mink, gray seal, and california sea lion) the bassariscus alpha a sequence exclusively shares two amino acid replacements with the alpha a chai ...19863444403
[localization of the gene for the na+,k+-atpase alpha subunit on chromosomes of the american mink]. 19873040360
chromosomal localization of the gene coding for alpha-subunit of na+,k+-atpase in the american mink (mustela vison).the gene coding for the alpha-subunit of na+,k+-atpase has been localized on chromosome 2 of the american mink (mustela vison) using the somatic cell hybrids mink-chinese hamster and pig cdna clones as hybridization probes.19873036574
assessment of humoral immune response in mink (mustela vison): antibody production and detection.a method for investigating the humoral immune response in mink (mustela vison) was developed between october 1993 and march 1994. protein a, 1:8000 dilution, had a high affinity for mink immunoglobulin, while anti-ferret (mustela putorius) antibody, 1:200 dilution, had a weaker affinity. four adult mink were immunized with a hapten, dinitrophenol (dnp), conjugated to a large carrier protein, keyhole limpet hemocyanin (klh), and received two boosters at 3-week intervals. this provoked a strong t- ...19968722279
functional organization of primary visual cortex in the mink (mustela vison), and a comparison with the cat.the functional organization of geniculocortical afferents and the visual responses of neurons in primary visual cortex (area 17) were studied in barbiturate-anesthetized, paralyzed minks and cats. responses of the afferents were studied after silencing intrinsic cortical activity with injections of kainic acid. in both species, afferents were segregated into patches on the basis of eye of origin. in the mink, but not in the cat, there was a further segregation on the basis of center type, with o ...19873558898
[comparative analysis of the peroxidase activity of myoglobins in mammals].studies have been made on the peroxidase activity of metmyoglobins in animals from various ecological groups--the horse equus caballus, cattle bos taurus, beaver castor fiber, otter lutra lutra, mink mustela vison and dog canis familiaris. it was found that the level of this activity in diving animals depends on the duration of their diving, whereas in terrestrial species--on the strength of muscular contraction.19873564776
tissue migration, growth, and morphogenesis of filaroides martis (nematoda: metastrongyloidea) in mink (mustela vison). 19724656829
a natural killer cell assay for the mink using a mouse lymphoma as the target cell line.a natural killer cell assay was developed for the mink (mustela vison) using mink peripheral mononuclear cells as effector cells and a mouse lymphoma cell line as targets. baseline levels of natural killer cell activity were established in fertile mutation mink, primary infertile dark mink and secondary infertile dark mink with autoimmune orchitis. blood samples were taken from dark mink at the end of march and from mutation mink during the first 2 weeks in april. statistically significant diffe ...19873599894
[selection-induced modification of the defence reaction to man in the american mink (mustela vison schreb.)]. 19873623095
levels of cadmium, mercury and lead in otter and mink faeces from the united kingdom.over 500 faeces of otter (lutra lutra) from britain, with a small sample from northeast greece, were analyzed for cd, hg and pb. a small sample of mink (mustela vison) faeces was also analyzed. mean concentrations of metals (mg kg-1 dry weight) in otter faeces ranged from 1.53 to 3.97 cd, 0.25 to 0.74 hg and 12.4 to 20.9 pb. mink faeces generally contained less cd and hg, but more pb. metal concentrations in faeces may reflect both natural and anthropogenic sources. estimates of daily cd and pb ...19863749871
regional assignments of eight genes on chromosome 2 in the american mink.chromosomal rearrangements involving mink chromosome 2 in mink-chinese hamster and mink-mouse hepatoma somatic hybrids were identified. by means of these rearrangements, we assigned the genes for hk1, got1, and pp to 2pter----p22, those for pgd, pgm1 and eno1 to 2q24.4----qter, and that for np and adk to 2pter----p11.1.19853863748
tyrosine aminotransferase deficiency in mink (mustela vision): a model for human tyrosinemia ii.mink pseudodistemper, a recessive disease associated with high blood tyrosine levels, is an animal analogue of the human inborn error of metabolism, tyrosinemia ii. affected mink and man have eye and skin lesions. affected mink have no hepatic tyrosine aminotransferase (tat) activity, as measured immunologically and biochemically. hepatic mitochondrial aspartate aminotransferase is increased to 188% of control. this new genetic animal model of tat deficiency should allow new studies of tyrosine ...19816117279
thermoregulation of polecat and raccoon dog: a comparative study with stoat, mink and blue fox.1. oxygen consumption (ml x kg0.75 per min) in relation to ambient temperature (ta) in the raccoon dog (nyctereutes procyonoides), polecat (mustela putorius), mink (mustela vison) and stoat (mustela erminea) is described by equations y = 14.2 - 0.23x, y = 26.3 - 0.47x, y = 26.9 - 0.33x and y = 39.0 - 1.06x, respectively. resting metabolic rate (rmr) of blue fox (alopex lagopus) could be measured only at thermoneutrality. 2. in polecats, calorigenic response to noradrenaline was about 40% above t ...19836131765
zoo-fish analysis: the american mink (mustela vison) closely resembles the cat karyotype.the 24 human chromosome-specific dna probes were used to visualize segments of conserved synteny on metaphase chromosomes of the american mink (mustela vison). a comparison with the hitherto known gene mapping data shows a high degree of correspondence. the human chromosomes were found conserved in only 34 segments of common synteny. the mink arrangement proved to be very similar to the arrangement found in the cat, thus corroborating the well-known high karyotype conservation described for felo ...19979088638
distribution of aujeszky's disease virus in experimentally infected mink (mustela vison).eight mink (mustela vison) were inoculated orally with aujeszky's disease virus (adv). three mink were killed at the onset of clinical signs and the other mink died spontaneously after inoculation. the incubation period ranged from 72 to 96 hours and was followed by a short illness characterised by increasing salivation, vomiting and retching, depression and coma. microscopically, lesions were confined to the brain stem and consisted of a discrete non-suppurative encephalitis. viral antigen was ...19979151474
mechanisms involved in the spontaneous occurrence of diploid-triploid chimerism in the mink (mustela vison) and chicken (gallus domesticus).diploid-triploid chimeras have been observed both in man and in a number of laboratory and livestock animals. the mechanism(s) of their origin remains enigmatic. one approach is to calculate for each proposed mechanism the expected frequencies of zygotes bearing different gonosomic complements in the two cell lines. observed samples are then compared with the expectations. the mechanisms that have been considered include: (1) fertilization of a blastomere, (2) absorption of the second polar body ...19836578004
progressive retinal degeneration in ranch mink.retinal degeneration was prevalent in a large group of sapphire and pastel mink (mustela vison) kept for studies on slow viral diseases. nearly 78% of those two to eight years old were affected. the retinopathy was equally common in both sexes but more frequent in sapphires (85%) than in pastels (63%), and it was severe more often in sapphires than in pastels. by light microscopy, the primary change appeared to be progressive degeneration of fully developed photoreceptors, beginning in their out ...19846710807
nitrogen balance in adult female mink (mustela vision) in response to normal feeding and short-term fasting.ten adult female mink (mustela vison) were studied in a 7 d balance experiment consisting of a 2 d pre-surgery feeding period, followed by surgery, 1 d of recovery 4 d of ad libitum feeding, and a 2 d fasting period. in this experiment (expt a) the animals had osmotic pumps implanted for continuous release of radioactively-labelled p-aminohippuric acid (p-aminobenzoyl-2-[3h]glycine; [3h]pah; n 10) and 14c-labelled inulin ([14c]in; n 5). repeated 24 h collections of urine, corrected to 100% [3h]p ...19979292762
pseudomonas aeruginosa. iv. iv. pyocine typing of strains isolated from the blue fox (alopex lagopus), mink (mustela vison), and dog (canis familiaris) and from their environment.investigation of a total of 354 ps. aeruginosa strains by "active" pyocine typing, using govan & gillies' indicator strains (21, 24) by which it may be possible to demonstrate the sources and routes of pseudomonas infection revealed that: (1) of the isolated pyocine-producing types 85.5% could be fitted into govan & gillies' classification, (2) 11.1% of all strains tested did not produce pyocine, (3) p3 was the only pyocine type isolated from an enzootic of fatal, haemorrhagic pneumonia in exper ...19806770343
a hammondia-like coccidian with a mink-muskrat life cycle.a tissue cyst-forming coccidian morphologically resembling the known species hammondia has a mink-muskrat life cycle. cysts are found in skeletal muscle of muskrats (ondatra zibetheca). mink (mustela vison) fed infected muskrat carcasses shed oocysts for 4 to 6 days after a prepatent period of 6 to 8 days. the oocysts, 99% of which are unsporulated in mink feces, measure 11.5 to 12 microns x 10 to 11 microns. sporulated oocysts have 2 sporocysts, each with 4 sporozoites. the present work was ins ...19827047765
chronic toxicity of fumonisins from fusarium moniliforme culture material (m-1325) to mink.adult female mink (mustela vison) were fed a diet that contained fusarium moniliforme culture material that provided dietary concentrations of 89 ppm fumonisin b1, 21 ppm fumonisin b2, and 8 ppm fumonisin b3 for 87 days. during the trial, there was mild lethargy in the mink fed fumonisins, but no other clinical signs or differences in feed consumption (measured during the first two weeks), body weights, or survivability were observed between the fumonisin-treated and control mink. several hemato ...19957574884
development of immortalized endometrial epithelial and stromal cell lines from the mink (mustela vison) uterus and their effects on the survival in vitro of mink blastocysts in obligate diapause.mink endometrial cell lines were established by stable transfection of a plasmid vector encoding the sv40 large t antigen driven by the human beta-actin promoter. a second plasmid vector, psv2neo, was employed for selection of transfected cells. specificity and homogeneity of consequent cell lines were evaluated by immunocytochemistry employing antibodies against cytokeratin, desmin, and vimentin. cytokeratin was found exclusively in epithelial cells, whereas vimentin appeared primarily in strom ...19957578673
activities of carbohydrate and amino acid metabolizing enzymes from liver of mink (mustela vison) and preliminary observations on steady state kinetics of the enzymes.the activity and some kinetic parameters of the key enzymes of the glycolysis, the gluconeogenesis and the amino acid catabolism from the liver of male and female mink have been determined and compared to the corresponding activities from rat and cat. the activities of glucose-6-phosphatase and pyruvate kinase are dependent on sex, both being higher in females. except for pyruvate carboxylase the glycolytic and the gluconeogenic enzyme activities of the mink are higher than those of rat and cat; ...19957584847
insulin-like growth factor ii in the mink (mustela vison): determination of a cdna nucleotide sequence and developmental regulation of its expression.mink cdna for insulin-like growth factor ii (igf-ii) has been isolated by cdna synthesis from bulk mrna and subsequent pcr-screening. positive clones were sequenced and analyzed. analysis of a cdna revealed that, compared with human, the mature mink igf-ii peptide contains 68 instead of 67 amino acids with a serine insertion at residue 40. with this exception, the homology between the human and mink mature peptide is 100% and is 94% between rat and mink. comparing igf-ii transcripts in fetal and ...19937686523
[predatory terrestrial mammals--the definitive hosts of diphyllobothrium klebanovskii].to clarify the definitive hosts of diphyllobothrium klebanovskii in the far east, 2198 individuals of 18 terrestrial predatory and omnivorous mammal species were surveyed. it was established that 47.1 +/- 8.56% of brown bears, one of the two dissected black bears, 1.7 +/- 1.2% of wolves, 1.6 +/- 0.71% of dogs, 0.3 +/- 0.14% of american minks and 2.8 +/- 2.75% of pigs were invaded by a tapeworm. obligatory hosts of the parasite were brown and black bears, and the remaining species were optional h ...19938028565
can sines: a family of trna-derived retroposons specific to the superfamily canoidea.a repetitive element of approximately 200 bp was cloned from harbour seal (phoca vitulina concolour) genomic dna. the sequence of the element revealed putative rna polymerase iii control boxes, a poly a tail and direct terminal repeats characteristic of sines. sequence and secondary structural similarities suggest that the sine is derived from a trna, possibly trna-alanine. southern blot analysis indicated that the element is predominately dispersed in unique regions of the seal genome, but may ...19948052527
[rapid karyotyping of mammalian cells].the use of "pipette" method ensures rapid preparation of standardized whole metaphase spreads. experiments with human, murine, chinese hamster, american mink, green african monkey, dog, and vole cells demonstrated that g-banded whole metaphase spreads can be obtained in less than two hours after the beginning of work with cell or tissue culture. due to that, it became possible to start karyotyping of animal tissue explants, as well as fetal cells present in human amniotic fluid, on day 3 to 4 af ...19948188049
demonstration of the x-linkage and order to the genes gla, g6pd, hprt, and pgk in two vole species of the genus microtus.using a variety of genetic methods, it is shown in this paper that the genes gla, g6pd, hprt, and pgk are x-linked in the vole microtus subarvalis. the order of these genes has been investigated in two vole species, m. subarvalis and m. kirgisorum, by using the mapping technique of goss and harris (1977a, b), which depends on the analysis of gamma-ray-induced gene segregation. the experimental data were processed with the computer programme rhmap (ginsburg et al., 1993). the analysis indicated t ...19948258299
[chromosome localization and analysis of synteny analysis of some genes in swine, cattle, and sheep (artiodactyla)].using the hybrid cell lines pig-american mink, cow-american mink, and sheep-american mink, the localization of some genes included in a large conservative block localized on human chromosome (chr) 17 was performed by means of electrophoresis of proteins and southern blot hybridization. genes nf1, rara, prkca, and erbb2 were assigned to chr 12 in swine; tk1 and umph2, to chr 19 in cattle; and tk1, umph2, and pepa, to chr 11 in sheep. the conserved synteny of these genes in three representatives o ...19989879008
the gastrointestinal bacteria of mink (mustela vison l): influence of age and diet.total numbers of aerotolerant and anaerobic bacteria, and densities of enterobacteriaceae, lactobacilli, staphylococci, salmonella and shigella, and campylobacteria were enumerated in the contents of the stomach, small intestine (and the associated mucosa), and colon of mink beginning at 2 weeks of age to adulthood, and in adults that were fed diets with different levels and types of fiber or food deprived. highest densities of all bacterial groups were found in the colon at all ages (up to 10(8 ...19989926461
chromosomal and regional localization of the loci for igkc, iggc, aldb, hoxb, gpt, and prnp in the american mink (mustela vison): comparisons with human and mouse.chromosomal localization of the genes for gamma- and kappa-immunoglobulins (iggc and igkc, respectively), aldolase b (aldb), prion protein (prnp), homeo box b (hoxb), and glutamate pyruvate transaminase (gpt) were determined with the use of mink-rodent hybrid cells. analysis of segregation of the mink markers and chromosomes in these hybrid cells allowed us to assign the gene for hoxb to chromosome (chr) 8, iggc to chr 10, prnp and igkc to chr 11, aldb to chr 12, and gpt to chr 14 in mink. furth ...19958563168
immunotoxicity studies in mink (mustela vison) chronically exposed to dietary bleached kraft pulp mill effluent.the immunotoxic potential of bleached kraft pulp mill effluent (bkme) to cell-mediated immunity in mink (mustela vison) was investigated october 1993 through may 1994. for 26 weeks, 20 mink were fed a diet based upon fish caught within 6 km downstream of a bleached kraft mill in saskatchewan, canada. water for this group contained 25% softwood-run bkme. twenty control mink were fed nutritionally matched diets based upon fish from lakes receiving no municipal or industrial effluent and tap water. ...19968722256
immunization of ducks for type c botulism.a single subcutaneous immunization with a vaccine used for protecting ranch mink (mustela vison) against type c botulism reduced morbidity and mortality in mallard (anas platyrhynchos) and northern pintail (anas acuta) ducks challenged with approximately 4.5 x 10(4) and 2.25 x 10(4) mouse lethal doses (mld50), respectively, of botulinum toxin at 10 and 15 days post-immunization (pi). there was no significant protection at 5 days pi. protection persisted in mallards for 90 days pi. to simulate us ...199910574530
[adrenal function in the mink mustela vison selected for the type of behavior].glucocorticoid function of adrenals and its reactivity to stress caused by immobilization and to acth stimulation have been studied in the male minks selected both for domestic and aggressive behavior towards man. in autumn period the regression of cortisol content in adrenals was observed in domesticated males and particularly in aggressive ones compared with control. at the same period the increased level of cortisol in blood as the result of immobilization was noticed in aggressive minks comp ...19958779285
effects of dietary exposure to fumonisins from fusarium moniliforme culture material (m-1325) on the reproductive performance of female mink.adult female mink (mustela vison) were fed diets that contained fusarium moniliforme culture material that provided low- or high-dose dietary concentrations of 86 or 200 ppm fumonisin b1, 22 or 42 ppm fumonisin b2, and 7 or 12 ppm fumonisin b3, respectively, from approximately two weeks prior to breeding through gestation and lactation. breeding performance of the females was not affected by consumption of the fumonisin diets. however, 58% of the mated females fed the high-dose diet (254 ppm tot ...19968781082
serogroups and antimicrobial susceptibility among escherichia coli isolated from farmed mink (mustela vison schreiber) in denmark.escherichia coli is commonly found in outbreaks of diarrhoea in mink during the production season although its role as a primary causal organism remains unclear. the present study was undertaken to determine the serogroups and antimicrobial susceptibility of e. coli isolates from healthy and diarrhoeic mink. rectal swabs were taken from healthy and diseased animals, on six different farms, once at the onset of disease and again approximately 2 weeks later. the swabs were subjected to bacteriolog ...200111230936
melatonin-induced downregulation of uterine prolactin receptors in mink (mustela vison).a study was conducted to investigate the effects of exogenous melatonin on serum concentrations of estradiol-17 beta (e2) and progesterone (p4) and uterine prolactin (prl) receptor concentrations in mated mink. in experiment 1, two groups of adult, standard dark, female mink were mated to fertile males on march 8 or 9. on march 16, mink in group 1 (n = 8) received an empty silastic implant inserted sc in the interscapular region and served as controls. mink in group 2 (n = 8) received an implant ...19968812342
intestinal hydrolytic activity in young mink (mustela vison) develops slowly postnatally and exhibits late sensitivity to glucocorticoids.the development of hydrolase activity in the intestinal brush border membrane is important for the maturation of digestive function in early life. the development and glucocorticoid control of intestinal enzymes were investigated in the mink (mustela vison), a carnivorous species, in which the intestine matures relatively late in postnatal life. mink kits (n = 110 from 20 litters) were either not treated or injected intramuscularly for 7 d with saline, adrenocorticotropic hormone [acth, 50 micro ...19968814192
dietary exposure to 3,3',4,4',5-pentachlorobiphenyl (pcb 126) or 2,3,7,8-tetrachlorodibenzo-p-dixon (tcdd) does not induce proliferation of squamous epithelium or osteolysis in the jaws of weanling rats.previous studies demonstrated that dietary exposure to 24 ppb 3,3',4,4',5-pentachlorobiphenyl (pcb 126) or 2.4 ppb 2,3,7,8-tetrachlorodibenzo-p-dioxin (tcdd) induced maxillary and mandibular proliferation of periodontal squamous epithelium, osteolysis of alveolar bone, and loose and displaced teeth in juvenile mink (mustela vison). this study determined if such effects could be induced in laboratory rats. feeding weanling male long evans rats 20 or 100 ppb pcb 126 or 1 or 10 ppb tcdd for up to 1 ...200111383662
wildlife disease reservoirs: the epidemiology of mycobacterium bovis infection in the european badger (meles meles) and other british mammals.mycobacterium bovis infection has been confirmed in a wide range of mammals hosts throughout the world. the european badger (meles meles) and the brushtail possum (trichosurus vulpecula) are implicated as significant sources of infection for domestic cattle in the uk and new zealand respectively. the risk of transmission of infection between a wildlife population and domestic animals will be determined by both the epidemiology of the disease and the ecology of the host. in the uk, surveys by the ...200111463223
the role of glucocorticoids in the growth of the digestive tract in mink (mustela vison).the effect of glucocorticoids on the growth of digestive organs was investigated in the postnatal period of mink. a total of 110 mink kits from 20 litters were either not injected or injected intramuscularly for seven days with saline, adrenocorticotropic hormone (acth, 50 micrograms/kg/day) or hydrocortisone-acetate (synthetic glucocorticoid, 50 mg/kg/day). the kits were killed at 2-10 weeks of age. plasma cortisol levels did not change significantly with age in the control animals. in the acth ...19968858837
2,2',4,5,5'-pentachlorobiphenyl: comparative metabolism in mink (mustela vison) and mouse.the metabolism of 14c-labeled 2,2',4,5,5'-pentachlorobiphenyl was studied in mink (mustela vison) and, for comparison in the mouse (c57bl). both species were dosed orally and kept in metabolism cages for 5 days. distribution in tissues and excretion rate were determined radiometrically, and metabolites were analyzed by gc/ms. within 5 days, the mink excreted 17% of the dose, and the mouse excreted 74%, mainly via the feces. for both species, the excreted radioactivity consisted primarily of meta ...19968951238
the occurrence of ixodid ticks on wild mink mustela vision in england and wales.four species of ticks found to infest 1391 american mink (mustela vison) in britain in five years were, in declining order of frequency, ixodes hexagonus, ixodes canisuga, ixodes ricinus and ixodes acuminatus. ixodes hexagonus and i. canisuga occurred on 40% and 2.5% of mink respectively. infestation rates (the proportion of infested mink) of adult females, nymphs and larvae were similar and tended to be lower in summer. the distribution of infestation size (the number of ticks per host) for adu ...19968994138
Displaying items 1 - 100 of 973