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https://www.readbyqxmd.com/read/28215454/sperm-quality-and-oxidative-status-as-affected-by-homogenization-of-liquid-stored-boar-semen-diluted-in-short-and-long-term-extenders
#1
Mariana B Menegat, Ana Paula G Mellagi, Rafael C Bortolin, Tila A Menezes, Amanda R Vargas, Mari Lourdes Bernardi, Ivo Wentz, Daniel P Gelain, José Cláudio F Moreira, Fernando P Bortolozzo
Homogenization of diluted boar semen during storage has for a long time been regarded as beneficial. Recent studies indicated an adverse effect of homogenization on sperm quality for yet unknown reasons. This study aimed to verify the effect of homogenization on sperm parameters and to elucidate the impact of oxidative stress. Twenty-one normospermic ejaculates (21 boars) were diluted with Androstar(®) Plus (AND) and Beltsville Thawing Solution (BTS). Semen doses were submitted to no-homogenization (NoHom) or twice-a-day manual homogenization (2xHom) during storage at 17°C for 168h...
February 12, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28213899/human-influence-and-biotic-homogenization-drive-the-distribution-of-escherichia-coli-virulence-genes-in-natural-habitats
#2
Adriana Cabal, Joaquin Vicente, Julio Alvarez, Jose Angel Barasona, Mariana Boadella, Lucas Dominguez, Christian Gortazar
Cattle are the main reservoirs for Shiga-toxin-producing Escherichia coli (STEC), the only known zoonotic intestinal E. coli pathotype. However, there are other intestinal pathotypes that can cause disease in humans, whose presence has been seldom investigated. Thus, our aim was to identify the effects of anthropic pressure and of wild and domestic ungulate abundance on the distribution and diversity of the main human E. coli pathotypes and nine of their representative virulence genes (VGs). We used a quantitative real-time PCR (qPCR) for the direct detection and quantification of the genus-specific gene uidA, nine E...
February 18, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28210442/a-portable-fiber-optic-raman-spectrometer-concept-for-evaluation-of-mineral-content-within-enamel-tissue
#3
Anna Akkus, Shan Yang, Renato Roperto, Hathem Mustafa, Sorin Teich, Ozan Akkus
BACKGROUND: Measurement of tooth enamel mineralization using a clinically viable method is essential since variation of mineralization may be used to monitor caries risk or in assessing the effectiveness of remineralization therapy. Fiber optic Raman systems are becoming more affordable and popular in context of biomedical applications. However, the applicability of fiber optic Raman systems for measurement of mineral content within enamel tissue has not been elucidated significantly in the prior literature...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28205112/autochthonous-sporadic-acute-hepatitis-e-caused-by-two-distinct-subgenotype-3b-hepatitis-e-virus-strains-with-only-90-nucleotide-identity
#4
Yasuko Yamaguchi, Hitoshi Takagi, Yuhei Suzuki, Kyoko Maruhashi, Takashi Kosone, Satoru Kakizaki, Ken Sato, Masanobu Yamada, Shigeo Nagashima, Masaharu Takahashi, Hiroaki Okamoto
Hepatitis E, which is caused by hepatitis E virus (HEV), is a public health concern in Japan, where the zoonotic food-borne transmission of HEV from domestic pigs and wild boars plays an important role. A 44-year-old Japanese man with autochthonous sporadic acute hepatitis E was admitted with general fatigue and moderate liver dysfunction. In the present study, two distinct HEV strains were recovered from the patient, who had consumed the raw or undercooked pig liver and intestine two or three times per week for 3 months before the disease onset...
February 15, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28202055/harmonizing-methods-for-wildlife-abundance-estimation-and-pathogen-detection-in-europe-a-questionnaire-survey-on-three-selected-host-pathogen-combinations
#5
Jana Sonnenburg, Marie-Pierre Ryser-Degiorgis, Thijs Kuiken, Ezio Ferroglio, Rainer G Ulrich, Franz J Conraths, Christian Gortázar, Christoph Staubach
BACKGROUND: The need for wildlife health surveillance as part of disease control in wildlife, domestic animals and humans on the global level is widely recognized. However, the objectives, methods and intensity of existing wildlife health surveillance programs vary greatly among European countries, resulting in a patchwork of data that are difficult to merge and compare. This survey aimed at evaluating the need and potential for data harmonization in wildlife health in Europe. The specific objective was to collect information on methods currently used to estimate host abundance and pathogen prevalence...
February 16, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28198455/polymerase-cross-linking-spiral-reaction-pclsr-for-detection-of-african-swine-fever-virus-asfv-in-pigs-and-wild-boars
#6
Grzegorz Woźniakowski, Magdalena Frączyk, Andrzej Kowalczyk, Małgorzata Pomorska-Mól, Krzysztof Niemczuk, Zygmunt Pejsak
The study reports the development of a polymerase cross-linking spiral reaction (PCLSR) for the detection of African swine fever virus (ASFV) DNA in blood collected from infected pigs and wild boars. The method uses 3 specifically designed primers. Two outer-spiral primers comprising of 3' sequences complementary to ASFV p72 gene sequence and 5'end sequences complementary to exogenous gene of black widow alpha-latrotoxin as well as additional ASFV specific cross-linking primer. The method is specific exclusively to ASFV DNA without cross-reactions with cDNA of classical swine fever virus (CSFV), porcine reproductive respiratory syndrome (PRRSV) or porcine epidemic diarrhea virus (PEDV)...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28193157/whole-genome-association-analysis-of-pork-meat-ph-revealed-three-significant-regions-and-several-potential-genes-in-finnish-yorkshire-pigs
#7
Lucas L Verardo, Marja-Liisa Sevón-Aimonen, Timo Serenius, Ville Hietakangas, Pekka Uimari
BACKGROUND: One of the most commonly used quality measurements of pork is pH measured 24 h after slaughter. The most probable mode of inheritance for this trait is oligogenic with several known major genes, such as PRKAG3. In this study, we used whole-genome SNP genotypes of over 700 AI boars; after a quality check, 42,385 SNPs remained for association analysis. All the boars were purebred Finnish Yorkshire. To account for relatedness of the animals, a pedigree-based relationship matrix was used in a mixed linear model to test the effect of SNPs on pH measured from loin...
February 13, 2017: BMC Genetics
https://www.readbyqxmd.com/read/28187743/the-influence-of-macro-and-microelements-in-seminal-plasma-on-diluted-boar-sperm-quality
#8
Maja Zakošek Pipan, Janko Mrkun, Breda Jakovac Strajn, Katarina Pavšič Vrtač, Janko Kos, Anja Pišlar, Petra Zrimšek
BACKGROUND: Growing evidence indicates that macro- and microelements in the seminal plasma of humans and various domestic animals are of great importance due to their roles in sperm metabolism, function, survival and oxidative stress. In the present study, we therefore determined the concentrations of macro- and microelements in fresh boar seminal plasma and their relation to sperm quality parameters after 3 days of liquid storage was assessed. Twenty ejaculates from eight boars were collected, and semen volume, concentration, sperm motility, morphology, tail membrane integrity, plasma membrane permeability, mitochondrial membrane potential and DNA fragmentation were determined on the day of collection (day 0) and day 3 (72 h) of storage at 15-17 °C...
February 10, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28187502/protein-kinase-c-activity-in-boar-sperm
#9
J M Teijeiro, P E Marini, M J Bragado, L J Garcia-Marin
Male germ cells undergo different processes within the female reproductive tract to successfully fertilize the oocyte. These processes are triggered by different extracellular stimuli leading to activation of protein phosphorylation. Protein kinase C (PKC) is a key regulatory enzyme in signal transduction mechanisms involved in many cellular processes. Studies in boar sperm demonstrated a role for PKC in the intracellular signaling involved in motility and cellular volume regulation. Experiments using phorbol 12-myristate 13-acetate (PMA) showed increases in the Serine/Threonine phosphorylation of substrates downstream of PKC in boar sperm...
February 10, 2017: Andrology
https://www.readbyqxmd.com/read/28183152/genetic-correlations-between-male-reproductive-traits-and-growth-traits-in-growth-performance-tested-duroc-landrace-and-yorkshire-breed-boars
#10
Hsiu-Luan Chang, Yung-Yu Lai, Ming-Che Wu, Osamu Sasaki
Male-related traits at 180-225 days of age for 6464 grow-finish performance tested boars were measured from 2000 to 2016. Heritability estimates and genetic correlations among average daily gain, feed efficiency, back fat thickness, teat counts, mounting libido, leg locomotion, penile length, sperm motility, sperm concentration and total sperm counts were estimated by VCE software using a multiple traits animal model in each breed. Growth-tested boars had heritability estimates of male reproductive traits in 0...
February 9, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28166993/resveratrol-and-epigallocatechin-3-gallate-addition-to-thawed-boar-sperm-improves-in%C3%A2-vitro-fertilization
#11
B Gadani, D Bucci, M Spinaci, C Tamanini, G Galeati
Thawing is one of the most delicate process after semen cryopreservation as spermatozoa pass from a dormant metabolic stage to a sudden awakening in cellular metabolism. The rapid oxygen utilization leads to an overproduction of reactive oxygen species that can damage sperm cells, thus causing a significant decrease of fertilizing potential of frozen-thawed spermatozoa. Resveratrol (Res) is a natural grape-derived phytoalexin and Epigallocatechin-3-gallate (EGCG) is the major polyphenol in green tea (Camellia sinensis); both molecules are known to possess high levels of antioxidant activity...
March 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28166992/the-effect-of-dietary-supplementation-of-algae-rich-in-docosahexaenoic-acid-on-boar-fertility
#12
E M Murphy, C Stanton, C O ' Brien, C Murphy, S Holden, R P Murphy, P Varley, M P Boland, S Fair
The objective of this study was to assess the effects of dietary supplementation of a commercial algal product rich in docosahexaenoic acid (DHA) on boar fertility as assessed in vitro and in vivo. Boars were fed one of three experimental diets for 19 weeks: (i) Control (Ctl) diet (n = 31), (ii) Ctl diet plus 75g All-G-Rich per day (n = 31) or (iii) Ctl diet plus 150g All-G-Rich per day (n = 30). Parameters assessed were (i) raw semen quality; volume, sperm concentration, total motility and morphology (ii) liquid semen quality; progressive motility, viability, hypotonic resistance and acrosomal integrity (iii) frozen-thawed semen quality; motility, thermal stress, viability, membrane fluidity and mitochondrial activity (iv) sperm and seminal plasma (SP) fatty acid composition (FAC) (v) total antioxidant capacity (TAC) of SP and (vi) farrowing rates and litter sizes of sows (n = 1158) inseminated with liquid semen...
March 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28166946/preventive-effects-of-supplemental-dietary-zinc-on-heat-induced-damage-in-the-epididymis-of-boars
#13
Zhaojian Li, Yansen Li, Xin Zhou, Yun Cao, Chunmei Li
Hyperthermia in boars reduces growth performance and sperm production. Zinc is an essential trace element in animal nutrition. Here we investigate the effects of dietary zinc on epididymal structure and function in Bama miniature pigs treated with heat exposure and investigate approaches to improve the reproductive performance in summer. Male Bama miniature pigs (n=18; aged 6 months; bodyweight=10.79±0.06kg) were randomly allocated to 3 groups: control group (Control), heat treatment group (HT), and the diet-supplemented and heat treatment group (H+Zn)...
February 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28154966/reproductive-allocation-in-pulsed-resource-environments-a-comparative-study-in-two-populations-of-wild-boar
#14
Marlène Gamelon, Stefano Focardi, Eric Baubet, Serge Brandt, Barbara Franzetti, Francesca Ronchi, Samuel Venner, Bernt-Erik Sæther, Jean-Michel Gaillard
Pulsed resources influence the demography and evolution of consumer populations and, by cascading effect, the dynamics of the entire community. Mast seeding provides a case study for exploring the evolution of life history traits of consumers in fluctuating environments. Wild boar (Sus scrofa) population dynamics is related to seed availability (acorns/beechnuts). From a long-term monitoring of two populations subjected to markedly different environmental contexts (i.e., both low vs. high frequency of pulsed resources and low vs...
February 3, 2017: Oecologia
https://www.readbyqxmd.com/read/28148907/seroprevalence-of-toxoplasma-gondii-in-hunted-wild-boars-sus-scrofa-from-southeastern-france
#15
Cedric Roqueplo, Radu Blaga, Marie Jean-Lou, Isabelle Vallee, Bernard Davoust
Toxoplasma gondii (Nicolle et Manceaux, 1908) is an obligate intracellular, parasitic protozoan within the phylum Apicomplexa that causes toxoplasmosis in mammalian hosts (including humans) and birds. Since meat of wild boar, Sus scrofa (Linnaeus), has been demonstrated to be a potential source of human infection, a careful evaluation of the prevalence of infection with T. gondii in hunted animals is needed to protect public health. In the Var area in southeastern France, we performed a spatio-temporal survey in order to investigate the prevalence of IgG antibodies in wild boars shot by hunters in the Canjuers military camp during two subsequent hunting seasons...
January 25, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28130984/distribution-of-skatole-and-androstenone-in-the-pig-carcass-correlated-to-sensory-characteristics
#16
Lene Meinert, Birgitte Lund, Camilla Bejerholm, Margit Dall Aaslyng
Reliable sorting and optimised use of boar-tainted pig carcasses are dependent on knowledge of the distribution of skatole and androstenone and the corresponding sensory characteristics. In this study, skatole and androstenone were measured in the neck fat and in six different meat cuts from 14 entire male pigs. There was a strong correlation between the content of skatole in the neck fat and in the meat cuts, though the concentration of skatole in the meat cuts was much lower than in the neck fat. Furthermore, clear correlations were found between the intensity of boar taint flavours and the concentration of skatole in both the neck fat and the meat...
January 19, 2017: Meat Science
https://www.readbyqxmd.com/read/28129094/osteochondrosis-synovial-fossae-and-articular-indentations-in-the-talus-and-distal-tibia-of-growing-domestic-pigs-and-wild-boars
#17
P E Etterlin, S Ekman, R Strand, K Olstad, C J Ley
Articular osteochondrosis (OC) often develops in typical locations within joints, and the characterization of OC distribution in the pig tarsus is incomplete. Prevalence of OC is high in domestic pigs but is presumed to be low in wild boars. Postmortem and computed tomography (CT) examinations of the talus and distal tibia from 40 domestic pigs and 39 wild boars were evaluated for the locations and frequencies of OC, synovial fossae, and other articular indentations, and frequency distribution maps were made...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28127344/helminth-parasites-of-wild-boars-sus-scrofa-in-bushehr-province-southwestern-iran
#18
Majid Mansouri, Bahador Sarkari, Gholam Reza Mowlavi
BACKGROUND: Wild boars, Sus scrofa, of wide distribution considered as a potential source of zoonotic parasites. The current study aimed to assess the prevalence of helminth infections in wild boars in the Persian Gulf coastal area (Bushehr Province), Southwestern Iran. METHODS: Twenty-five wild boars, including 11 males and 14 females, were collected during a course of vertebrate pest control in the Bushehr Province, southwestern Iran in 2013. The specimen were immediately dissected and carefully searched for the parasites...
July 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28122588/evidence-of-low-prevalence-of-mycobacterial-lymphadenitis-in-wild-boars-sus-scrofa-in-poland
#19
Lucjan Witkowski, Blanka Orłowska, Magdalena Rzewuska, Michał Czopowicz, Mirosław Welz, Krzysztof Anusz, Jerzy Kita
Mycobacterium spp. and Rhodococcus equi are generally regarded as the main causes of lymphadenitis in pigs and wild boars. In Poland, mycobacterial submandibular lymphadenitis was first diagnosed in a wild boar in 2012 but Mycobacterium spp. infections are also present in the Polish population of European bison (Bison bonasus). The prevalence of lymphadenitis in Polish wild boars has been found to 8.4% (95% CI 6.2-11.3%) and it has been proved that R. equi is not an important cause of purulent lesions in these animals...
January 25, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28118555/detection-of-echinococcus-granulosus-g3-in-a-wild-boar-sus-scrofa-in-central-italy-using-pcr-and-sequencing
#20
Antonella Di Paolo, Toni Piseddu, Martina Sebastianelli, Elisabetta Manuali, Sara Corneli, Marta Paniccià, Paola Papa, Selina Viali, Piera Mazzone
We report cystic echinococcosis in a free-living wild boar ( Sus scrofa ) in Europe. Parasites were identified by histopathology and molecular techniques, revealing Echinococcus granulosus of the G3 genotype.
January 24, 2017: Journal of Wildlife Diseases
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