identification of two groups of mycobacterium paratuberculosis strains by restriction endonuclease analysis and dna hybridization.genomic dna was prepared from four reference strains of mycobacterium paratuberculosis and 46 isolates of this organism from new zealand, australia, canada, and norway and also from two mycobactin-dependent "wood pigeon" strains. the dna was characterized by restriction endonuclease analysis, both with and without dna hybridization, with a probe specific to a repetitive dna sequence in m. paratuberculosis. both techniques differentiated m. paratuberculosis strains into two groups, but dna hybrid ...19902166089
characterization of clinical isolates of mycobacterium paratuberculosis by dna-dna hybridization and cellular fatty acid analysis.the dna-dna homologies obtained were more than 90 per cent for all strains examined, including the reference strains of mycobacterium paratuberculosis and mycobacterium avium. consequently, in a genetic sense, m. paratuberculosis with its variants belong to a single species which should be considered a subspecies of m. avium. the same reference strains of m. paratuberculosis and m. avium showed small but distinct differences in the cellular fatty acid patterns. the norwegian goat isolate proved ...19883395476
utilization of umbilical cords to assess in utero exposure to persistent pesticides and polychlorinated support of a study to relate developmental and cognitive effects with prenatal exposure to selected environmental toxicants, we developed and applied an analytical method to determine the concentration of two persistent pesticides, hexachlorobenzene (hcb) and p,p'-dichlorodiphenyldichloroethylene (dde), and 32 specific polychlorinated biphenyl (pcb) congeners in 316 umbilical cords taken in 1986-1987 from women of the faroe islands. the analytical method consisted of homogenization of the cor ...200011138670
characterization of listeria monocytogenes isolates from the meat, poultry and seafood industries by automated ribotyping.a total of 564 listeria monocytogenes isolates were characterized by automated ribotyping. the samples were taken from equipment, personnel and the environment after cleaning procedures and during food processing, as well as from raw materials and products from six meat, two poultry and five seafood processing plants located in the faroe islands, finland, iceland, norway and sweden. altogether, 25 different ribotypes (rts) were generated. two rts occurred in the samples from all three food secto ...200211843405
genetic components in contemporary faroe islands cattle as revealed by microsatellite analysis.the gene pool of indigenous faroe islands cattle is strongly affected by crossing with norwegian red. in this study, the genetic structure in 191 animals representing five north european cattle breeds (faroe islands, icelandic, blacksided troender, western fjord and norwegian red) and the genetic admixture in the contemporary faroe islands cattle at the population and individual level were evaluated using 20 polymorphic microsatellite loci. only 6.7% of the total genetic variation could be attri ...200516191039
comparing norse animal husbandry practices: paleoethnobotanical analyses from iceland and greenland.the popular view of the norse settlement across the north atlantic describes colonies with similar subsistence practices being established from the faroe islands in the west to l'anse aux meadows in the east. the importance of plant resources to the norse animal husbandry strategies implemented by settlers upon arrival are not well established, nor are the changes these strategies underwent, eventually resulting in different cultural solutions to varying environmental and social factors. this pa ...200721847841
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