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Neovison vison

J P Thirstrup, J Jensen, M S Lund
Fur quality and skin size are integral qualities in the mink industry and are main determinants of sales price and subsequent income for mink fur producers. Parental animals of future generations are selected based on quality grading from live animals, but selection response is obtained from dried skins sold after pelting. In this study, we evaluated traits assessed during live grading and pelt traits examined on dried skins to determine correlation between live and pelt traits. Grading traits and body weight were measured during live animal grading for 9,539 Brown American mink, and pelt quality traits and skin size were evaluated on 8,385 dried mink skins after pelting...
March 10, 2017: Journal of Animal Breeding and Genetics, Zeitschrift Für Tierzüchtung und Züchtungsbiologie
Kristin M Eccles, Philippe J Thomas, Hing Man Chan
Mercury (Hg) is a pollutant of global concern. Sentinel species such as river otter (Lontra canadensis) and mink (Neovison vison) are often used to monitor environmental concentrations in freshwater ecosystems. Tissue total Hg (THg) concentrations are frequently used as biomarkers of exposure. However, there is no comprehensive model relating Hg tissue concentrations in different tissues, making interstudy comparisons challenging. Our objective was to establish conversion factors relating fur, brain, liver, kidney, and muscle THg concentrations using mean concentrations and standard errors reported in the literature...
February 22, 2017: Environmental Toxicology and Chemistry
Martin I Bahl, Anne S Hammer, Tove Clausen, Anabelle Jakobsen, Søren Skov, Lars Andresen
Although it is well documented that the gut microbiota plays an important role in health and disease in mammalian species, this area has been poorly studied among carnivorous animals, especially within the mustelidae family. The gastrointestinal tract of carnivores is characterized by its short length and fast transit time, as compared to omnivores and herbivores, which is due to the low level of inherent fermentation. Mink represents an example of this, which have a GI tract only four times the length of the body and a transit time of approximately 4-5 hr...
January 16, 2017: MicrobiologyOpen
M T Tjernsbekk, A-H Tauson, O F Kraugerud, Ø Ahlstrøm
Protein quality was evaluated for mechanically separated chicken meat (MSC) and salmon protein hydrolysate (SPH), and for extruded dog foods where MSC or SPH partially replaced poultry meal (PM). Apparent total tract digestibility (ATTD) of crude protein (CP) and amino acids (AA) in the protein ingredients and extruded foods was determined with mink (Neovison vison). The extruded dog foods included a control diet with protein from PM and grain, and two diets where MSC or SPH provided 25% of the dietary CP. Nutrient composition of the protein ingredients varied, dry matter (DM) was 944...
January 3, 2017: Journal of Animal Physiology and Animal Nutrition
J C Fenelon, P L Lefèvre, A Banerjee, B D Murphy
Embryonic diapause is an evolutionary strategy to ensure that offspring are born when maternal and environmental conditions are optimal for survival. In many species of carnivores, obligate embryonic diapause occurs in every gestation. In mustelids, the regulation of diapause and reactivation is influenced by photoperiod, which then acts to regulate the secretion of pituitary prolactin. Prolactin in turn regulates ovarian steroid function. Reciprocal embryo transplant studies indicate that this state of embryonic arrest is conferred by uterine conditions and is presumed to be due to a lack of specific factors necessary for continued development...
April 2017: Reproduction in Domestic Animals, Zuchthygiene
Karl Ljungvall, Ulf Magnusson, Marcus Korvela, Mattias Norrby, Jonas Bergquist, Sara Persson
The American mink is an invasive species in Sweden, and it is legally hunted all year. Therefore, the mink is well suited as a sentinel species for environmental monitoring. In the present study female mink (n = 91) from 6 different areas in Sweden were analyzed for the concentrations of silver, cadmium, mercury and lead in liver tissue using inductively coupled plasma mass spectrometry. The wet concentrations in liver tissue were 42.6 ± 52.7 ng/g for silver, 99.5 ± 100 ng/g for cadmium, 652 ± 537 ng/g for mercury, and 196 ± 401 ng/g for lead (expressed as mean ± standard deviation)...
December 21, 2016: Environmental Toxicology and Chemistry
H Gholipour, N Busquets, X Fernández-Aguilar, A Sánchez, M P Ribas, G De Pedro, P Lizarraga, O Alarcia-Alejos, C Temiño, O Cabezón
Influenza A viruses (IAVs) are negative-sense, single-stranded and segmented RNA viruses of the Orthomyxoviridae family that may cause acute respiratory disease in a wide range of birds and mammals. Susceptibility of several species within the family Mustelidae to IAVs has been reported as a result of natural or experimental infections. The objectives of this study were to assess whether free-ranging American mink populations from Northern Spain were infected with IAV and try to define the role of this species in the epidemiology of IAV...
December 5, 2016: Zoonoses and Public Health
Robert J Molenaar, Rianne Buter, Agnieszka Sroka
BACKGROUND: The emerging skin disease fur animal epidemic necrotic pyoderma (FENP) has been attributed to infection with Arcanobacterium phocae (ABP). The exact pathogenesis and risk factors of FENP have yet to be elucidated. ANIMALS: Three mink from each of three different mink farms (A-C) with postvaccination skin wounds at the vaccination site and six mink from an unaffected mink farm (D) that had used the same vaccine batch and vaccination site (hind leg). METHODS AND RESULTS: All minks from farms A-C had severe necrotizing to necropurulent dermatitis where they were vaccinated intramuscularly in the hind leg...
December 4, 2016: Veterinary Dermatology
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)...
December 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) can recognize conserved molecular patterns and initiate a wide range of innate and adaptive immune responses against invading infectious agents. The aim of this study was to assess the transcript profile 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 mTLR partial nucleotide sequences had a high degree of nucleotide identity with ferret sequences (95-98%)...
December 28, 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...
November 15, 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...
January 2017: 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
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