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Neovison vison

Wen-Bin Zheng, Xiao-Xuan Zhang, Jian-Gang Ma, Fa-Cai Li, Quan Zhao, Si-Yang Huang, Xing-Quan Zhu
Toxoplasma gondii is a worldwide prevalent parasite, affecting a wide range of mammals and human beings. Little information is available about the distribution of genetic diversity of T. gondii infection in minks (Neovison vison). This study was conducted to estimate the prevalence and genetic characterization of T. gondii isolates from minks in China. A total of 418 minks brain tissue samples were collected from Jilin and Hebei provinces, northern China. Genomic DNA were extracted and assayed for T. gondii infection by semi-nested PCR of B1 gene...
2016: PloS One
Léo Botton-Divet, Raphaël Cornette, Anne-Claire Fabre, Anthony Herrel, Alexandra Houssaye
The locomotor environment and behavior of quadrupedal mammals exert functional constraints on their limbs. Therefore long bone shapes are thought to reflect at least partially the species' locomotor ecology. Semi-aquatic species move through two media with distinct density and viscosity and their locomotor apparatus should therefore reflect a trade-off between the divergent functional constraints it faces. Adaptation to a semi-aquatic lifestyle occurred independently in otters (Lutrinae) and minks (Mustelinae)...
October 29, 2016: Integrative and Comparative Biology
O V Trapezov, N D Luzenko, L I Trapezova
The results of the study of the effects of heterozygosity for mutations affecting coat pigmentation on the response to the environmental stress caused by extreme feeding conditions are provided. The animals with the following genotypes were taken into the study: homozygotes standard (+/+), hedlund white (h/h), and aleutian (a/a) and heterozygotes hedlund white (h/+) and aleutian (a/+). The animals homozygous for the aleutian mutation (a/a) showed a statistically lower growth rate than the animals of other genotypes both in the ontrol and in the experiment (p < 0...
April 2016: Genetika
Elzbieta Kalisinska, Natalia Lanocha-Arendarczyk, Danuta Kosik-Bogacka, Halina Budis, Joanna Podlasinska, Marcin Popiolek, Agnieszka Pirog, Ewa Jedrzejewska
Mercury (Hg), lead (Pb) and cadmium (Cd) are involved in mammalian brain damage. However, little is known about Pb and Cd brain levels in wildlife that reflect the geochemical background. The aims of the study include the estimation of Hg, Pb and Cd concentrations, and the determination of relationships between these elements in the brains of 94 mesocarnivores. Road-killed or hunted animals were obtained from north-western Poland near the Polish-German border. The investigation covered the native Eurasian otter Lutra lutra, badger Meles meles, pine marten Martes martes, beech marten M...
2016: PloS One
Angela K Fuller, Chris S Sutherland, J Andrew Royle, Matthew P Hare
Estimating the abundance or density of populations is fundamental to the conservation and management of species, and as landscapes become more fragmented, maintaining landscape connectivity has become one of the most important challenges for biodiversity conservation. Yet these two issues have never been formally integrated together in a model that simultaneously models abundance while accounting for connectivity of a landscape. We demonstrate an application of using capture-recapture to develop a model of animal density using a least-cost path model for individual encounter probability that accounts for non-Euclidean connectivity in a highly structured network...
June 2016: Ecological Applications: a Publication of the Ecological Society of America
Mingwei Tong, Li Yi, Yuening Cheng, Miao Zhang, Zhigang Cao, Jianke Wang, Hang Zhao, Peng Lin, Yong Yang, Shipeng Cheng
Toll-like receptors (TLRs) could recognize conserved molecular patterns and initiate a wide range of innate and adaptive immune responses against invading infectious agents. The aim of the this study is to assess the transcript profiling of mink TLRs (mTLRs) in mink peripheral blood mononuclear cells (PBMCs) and a range of tissues, and to explore the potential role of mTLRs in the antiviral immune response process. The results indicated that the mTLRs partial nucleotide sequences revealed a high degree of nucleotide identity with ferret sequences (95-98%)...
July 19, 2016: Journal of Microbiology and Biotechnology
Norberto Ruiz-Suárez, Yolanda Melero, Anna Giela, Luis A Henríquez-Hernández, Elizabeth Sharp, Luis D Boada, Michael J Taylor, María Camacho, Xavier Lambin, Octavio P Luzardo, Gill Hartley
Anticoagulant rodenticides (ARs) are highly toxic compounds that are exclusively used for the control of rodent pests. Despite their defined use, they are nonetheless found in a large number of non-target species indicating widespread penetration of wildlife. Attempts to quantify the scale of problem are complicated by non-random sampling of individuals tested for AR contamination. The American mink (Neovison vison) is a wide ranging, non-native, generalist predator that is subject to wide scale control efforts in the UK...
November 1, 2016: Science of the Total Environment
Andrzej Zalewski, Hanna Zalewska, Sven-Gunnar Lunneryd, Carl André, Grzegorz Mikusiński
Eradication and population reductions are often used to mitigate the negative impacts of non-native invasive species on native biodiversity. However, monitoring the effectiveness of non-native species control programmes is necessary to evaluate the efficacy of these measures. Genetic monitoring could provide valuable insights into temporal changes in demographic, ecological, and evolutionary processes in invasive populations being subject to control programmes. Such programmes should cause a decrease in effective population size and/or in genetic diversity of the targeted non-native species and an increase in population genetic structuring over time...
2016: PloS One
Zuzana Hurníková, Marta Kołodziej-Sobocińska, Emília Dvorožňáková, Agnieszka Niemczynowicz, Andrzej Zalewski
The American mink (Neovison vison Schreber, 1777) is one of the most invasive alien mammal species which has been introduced to many countries in Europe, Asia and South America. As a predator which feeds on various prey, American mink carry many endoparasites; however, data about infection rate and prevalence of different parasites in mink are limited, especially concerning Trichinella spp. The aim of our study was to evaluate the role of American mink in the circulation of Trichinella species in its introduced range...
June 16, 2016: Veterinary Parasitology
A H Farid, P P Rupasinghe
There is a growing interest among mink ranchers to select their stock for tolerance to the Aleutian mink disease virus (AMDV). Enzyme-linked immunosorbent assays (ELISA) are used to identify mink which have low anti-AMDV antibody titres and are expected to tolerate the AMDV infection. The objective of this study was to calculate the accuracy of three ELISA systems which were performed on blood or serum of AMDV-inoculated American mink (Neovison vison) at five laboratories in Canada, USA, Finland, the Netherlands and Denmark...
September 2016: Journal of Virological Methods
Kole Bowman, Jack Rose
Glycogen synthesis by mink uterine glandular and luminal epithelia (GE and LE) is stimulated by estradiol (E2 ) during estrus. Subsequently, the glycogen deposits are mobilized to near completion to meet the energy requirements of pre-embryonic development and implantation by as yet undetermined mechanisms. We hypothesized that progesterone (P4 ) was responsible for catabolism of uterine glycogen reserves as one of its actions to ensure reproductive success. Mink were treated with E2 , P4 or vehicle (controls) for 3 days and uteri collected 24 h (E2 , P4 and vehicle) and 96 h (E2 ) later...
May 12, 2016: Animal Science Journal, Nihon Chikusan Gakkaihō
Wen-Bin Zheng, Wei Cong, Qing-Feng Meng, Jian-Gang Ma, Chun-Feng Wang, Xing-Quan Zhu, Ai-Dong Qian
Toxoplasma gondii is an important intracellular parasite, which can infect endothermic vertebrate animals, including minks (Neovison vison). However, information on T. gondii infection in minks in China is limited. Therefore, we investigated the seroprevalence and risk factors of T. gondii infection in minks in northeastern and eastern China. A total of 1499 mink blood samples were randomly collected from eight cities between March 2014 and January 2015 in northeastern and eastern China, and antibodies to T...
July 2016: Vector Borne and Zoonotic Diseases
M Heddergott, D Pohl, P Steinbach, L Cantú Salazar, F Müller, A C Frantz
Skrjabingylus nasicola (Leuckart, 1842) are geographically widespread nematodes that parasitize the nasal and frontal sinus cavities of smaller mustelids. As most prior work was solely based on the analysis of bone injuries of museum skull, little is known about the determinants and effects of infestation in the host species. Working on fresh skulls, we aimed to analyze infestation patterns in American mink (Neovison vison Schreber, 1777) from nine study areas in northern Germany and to identify factors that explained infestation prevalence and intensity in the host species...
September 2016: Parasitology Research
Jordi Torres, Jordi Miquel, Christine Fournier-Chambrillon, Adrien André, Fermín Urra Maya, Gloria Giralda Carrera, Pascal Fournier
The riparian European mink (Mustela lutreola), currently surviving in only three unconnected sites in Europe, is now listed as a critically endangered species according to the IUCN. Habitat loss and degradation, anthropic mortality, interaction with the feral American mink (Neovison vison), and infectious diseases are among the principal causes of its decline. Surveys of helminth parasites of this host that also include focus on subcutaneous potentially pathogenic helminths such as those belonging to the genus Filaria are very scarce...
June 2016: Parasitology Research
V F Jensen, H M Sommer, T Struve, J Clausen, M Chriél
The American mink (Neovison vison) is used for commercial fur production in Denmark. In recent years, antimicrobial prescription for Danish mink has been increasing. In this study, the patterns and trends in antimicrobial use in mink were described and a multi-variable variance analysis was carried out with the objective of identifying risk factors for antimicrobial use on herd level. The study was based on register data for 2007-2012. Information on antimicrobial use was obtained from the national database VetStat, monitoring all medicinal products used for animals on prescription level...
April 1, 2016: Preventive Veterinary Medicine
R Douglas Evans, Brendan Hickie, Kirsti Rouvinen-Watt, Wei Wang
Despite the importance of methylmercury (MeHg) as a neurotoxin, we have relatively few good data on partitioning and kinetics of MeHg among organs, particularly across the blood-brain barrier, for mammals that consume large quantities of fish. The objective of this study was to determine the partition coefficients between blood and brain, liver and kidney and fur for MeHg under steady-state conditions and to measure the half-lives for MeHg in these organs. Captive mink (Neovison vison) were fed a diet enriched with two stable isotopes of Hg, Me(199)Hg and Me(201)Hg for a period of 60 days...
March 2016: Environmental Toxicology and Pharmacology
Anna Jespersen, Jens Frederik Agger, Tove Clausen, Stine Bertelsen, Henrik Elvang Jensen, Anne Sofie Hammer
BACKGROUND: Wounds are regarded as an indicator of reduced welfare in mink production; however, information on the occurrence and significance of wounds is sparse. To provide a basis for assessment and classification of wounds in farmed mink, the distribution pattern and characteristics of wounds in farmed mink in June and October, respectively, is described. A total of 791 and 660 mink from 6 to 12 Danish mink farms, respectively, were examined. The mink were either found dead or were euthanized due to injury or other disease...
2016: Acta Veterinaria Scandinavica
Ellie Sherrard-Smith, David W G Stanton, Jo Cable, Pablo Orozco-terWengel, Vic R Simpson, Morten Elmeros, Jiska van Dijk, Franck Simonnet, Anna Roos, Charles Lemarchand, Lukáš Poledník, Petr Heneberg, Elizabeth A Chadwick
The recent identification of Pseudamphistomum truncatum, (Rudolphi, 1819) (Trematoda: Opisthorchiidae) and Metorchis bilis (Braun, 1790) Odening, 1962 (synonymous with Metorchis albidus (Braun, 1893) Loos, 1899 and Metorchis crassiusculus (Rudolphi, 1809) Looss, 1899 (Trematoda: Opisthorchiidae)) in otters from Britain caused concern because of associated biliary damage, coupled with speculation over their alien status. Here, we investigate the presence, intensity and phylogeny of these trematodes in mustelids (principally otters) across Europe (Czech Republic, Denmark, France, Germany, Norway, Poland and Sweden and Britain)...
April 2016: Parasitology International
María Díez-León, Georgia Mason
In several species, stress compromises maternal behaviors that are important for infant viability (e.g. licking and grooming). Understanding how stress in captivity affects maternal behavior could therefore be beneficial, especially for carnivores in zoos and breeding centers where infant mortality is often high. We used a model carnivore--American mink--to test two hypotheses, namely that maternal investment and/or behavior is i. improved by environmental enrichment; and ii. compromised by stereotypic behavior...
January 2016: Zoo Biology
Sisco Mañas, Asunción Gómez, Victoria Asensio, Santiago Palazón, Madis Podra, Olga Esther Alarcia, Jordi Ruiz-Olmo, Jordi Casal
The European mink (Mustela lutreola) has undergone a dramatic decline and is one of the most endangered mammals in the world. The invasive American mink (Neovison vison) is considered the main factor for this decline. However, the American mink's introduction and the subsequent ecological concurrence of the two species cannot solely explain the decline or disappearance of the European mink. Aleutian mink disease virus (AMDV) is the main health problem in fur farming worldwide, causing varied clinical syndromes that depend on the viral strain and host factors...
January 2016: Journal of Wildlife Diseases
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