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https://www.readbyqxmd.com/read/28526990/how-does-supplementary-feeding-affect-endoparasite-infection-in-wild-boar
#1
Ragne Oja, Kaisa Velström, Epp Moks, Pikka Jokelainen, Brian Lassen
Supplementary feeding is widely used in game management but may aid the transmission of parasites. Firstly, feeding sites attract animals and may be regarded as high-risk areas for parasite transmission. Secondly, high host population densities resulting from and supported by supplementary feeding, as well as accumulation of parasites in the environment, may increase parasite prevalence. Our aim was to investigate whether host density or the number of feeding sites drives endoparasite infection in an Estonian wild boar (Sus scrofa) population...
May 19, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28525330/effect-of-boar-ejaculate-fraction-extender-type-and-time-of-storage-on-quality-of-spermatozoa
#2
A Dziekońska, K Świąder, M Koziorowska-Gilun, K Mietelska, Ł Zasiadczyk, W Kordan
The aim of this study was to investigate the effect the sperm-rich fraction (F1) and the post-F1 fraction (F2) on the quality of boar spermatozoa stored in a liquid state. Ejaculates were collected from three Polish Landrace boars. Each ejaculate fraction was diluted with BTS short-term extender and Safe-Cell Plus (SCP) long-term extender and stored for seven days (D1-D7) at 17°C. Analyses included sperm motility parameters, normal apical ridge (NAR) acrosomes and plasma membrane integrity (PMI). Prior to the dilution of fractions, marked changes (p<0...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28514973/olfactory-evaluation-of-boar-taint-effect-of-factors-measured-at-slaughter-and-link-with-boar-taint-compounds
#3
E Heyrman, S Millet, F A M Tuyttens, B Ampe, S Janssens, N Buys, J Wauters, L Vanhaecke, M Aluwé
There is a commitment by the European pig sector to ban surgical castration of male piglets in the European Union in 2018. One alternative to castration is to raise entire male pigs, with an increased risk of boar taint. A field study was performed to: (1) evaluate inter- and intra-farm variation in boar taint prevalence, (2) investigate factors measured at slaughter influencing boar taint and (3) evaluate the relationship between sensorial scoring by a trained panel and the concentration of boar taint components...
May 18, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28508704/differential-expression-of-genes-related-to-glucose-metabolism-in-domesticated-pigs-and-wild-boar
#4
Dafang He, Jideng Ma, Keren Long, Xun Wang, Xuewei Li, Anan Jiang, Mingzhou Li
Glucose metabolism is a basic biological process that shows substantial variation within and between species. Using pig as a model organism, we investigated differences in glucose metabolic genes in seven tissues from domesticated pigs (Rongchang pig and Tibetan pig, meanwhile, the Tibetan pig just as a special case of the domesticated pig under plateau condition) and wild boar. We found large differences in the expression of genes involved in multiple aspects of glucose metabolism, including genes associated with glucose transport, gluconeogenesis, and glycolysis...
May 16, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28506045/serological-and-molecular-detection-of-toxoplasma-gondii-and-babesia-microti-in-the-blood-of-rescued-wild-animals-in-gangwon-do-province-korea
#5
Sung-Hee Hong, Hee-Jong Kim, Young-Il Jeong, Shin-Hyeong Cho, Won-Ja Lee, Jong-Tak Kim, Sang-Eun Lee
Infections of Toxoplasma gondii and Babesia microti are reported in many wild animals worldwide, but information on their incidence and molecular detection in Korean wild fields is limited. In this study, the prevalence of T. gondii and B. microti infection in blood samples of 5 animal species (37 Chinese water deer, 23 raccoon dogs, 6 roe deer, 1 wild boar, and 3 Eurasian badgers) was examined during 2008-2009 in Gangwon-do (Province), the Republic of Korea (=Korea) by using serological and molecular tests...
April 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28506041/identification-of-tick-species-collected-from-wild-boars-and-habitats-of-wild-boars-and-domestic-pigs-in-the-republic-of-korea
#6
Jeong-Byoung Chae, Jun-Gu Kang, Heung-Chul Kim, Sung-Tae Chong, In-Yong Lee, Nam-Shik Shin, Joon-Seok Chae
Tick is one of the most important arthropods in the transmission of vector-borne diseases. In this study, we investigated the abundance and species of ticks associated with swine and their habitats to assess the risk of spread of tick-borne diseases in host species, such as wild boars. Ticks were collected from 24 grazing or traditionally reared domestic pig farms and 8 habitats of wild boars in 8 provinces and 1 city in the Republic of Korea, by using the dragging and flagging methods. Ticks were also collected directly from 49 wild boars by using fine forceps...
April 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28500468/rickettsia-spp-in-dermacentor-marginatus-ticks-analysis-of-the-host-vector-pathogen-interactions-in-a-northern-mediterranean-area
#7
Marco Selmi, Marco Ballardini, Laura Salvato, Enrica Ricci
In this work, we have analyzed the key features of Rickettsia spp. maintenance in Dermacentor marginatus ticks in four regions of the northern Mediterranean area, where extensive investigations are currently lacking. For this purpose, 380 adult D. marginatus ticks were collected from vegetation and wild ungulates during a 3-year study. A host-vector-pathogen interaction approach was applied to investigate the key components of the disease systems and evaluate their respective weight in the intensity of infection in natural foci...
May 12, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28500056/a-pathway-centered-analysis-of-pig-domestication-and-breeding-in-eurasia
#8
Jordi Leno-Colorado, Nick Hudson, Antonio Reverter, Miguel Pérez-Enciso
Ascertaining the molecular and physiological basis of domestication and breeding is an active area of research. Due to the current wide distribution of its wild ancestor, the wild boar, the pig (Sus scrofa) is an excellent model to study these processes, which occurred independently in East Asia and Europe ca. 9,000 years ago. Analyzing genome variability patterns in terms of metabolic pathways is attractive since it considers the impact of interrelated functions of genes, in contrast to genome-wide scans that treat genes or genome-windows in isolation...
May 12, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28497848/isolation-of-subtelomeric-sequences-of-porcine-chromosomes-for-translocation-screening-reveals-errors-in-the-pig-genome-assembly
#9
R E O'Connor, G Fonseka, R Frodsham, A L Archibald, M Lawrie, G A Walling, D K Griffin
Balanced chromosomal aberrations have been shown to affect fertility in most species studied, often leading to hypoprolificacy (reduced litter size) in domestic animals such as pigs. With an increasing emphasis in modern food production on the use of a small population of high quality males for artificial insemination, the potential economic and environmental costs of hypoprolific boars, bulls, rams etc. are considerable. There is therefore a need for novel tools to facilitate rapid, cost-effective chromosome translocation screening...
May 12, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28497542/molecular-detection-and-phylogenetic-analysis-of-hepatitis-e-virus-strains-circulating-in-wild-boars-in-south-central-italy
#10
G Aprea, M G Amoroso, I Di Bartolo, N D'Alessio, D Di Sabatino, A Boni, B Cioffi, D D'Angelantonio, S Scattolini, L De Sabato, G Cotturone, F Pomilio, G Migliorati, G Galiero, G Fusco
Hepatitis E virus (HEV) is a zoonotic pathogen with a worldwide distribution, and infects several mammalian species, including pigs and wild boars, which are recognized as its natural reservoirs. The virus causes a usually self-limiting liver disease with a mortality rate generally below 1%, although mortality rates of 15%-25% have been recorded in pregnant woman. Chronic infections can also occur. The prevalence of HEV has been extensively studied in wild boars and pigs in northern Italy, where intensive pig herds are predominantly located...
May 11, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28494783/genome-wide-association-study-confirm-major-qtl-for-backfat-fatty-acid-composition-on-ssc14-in-duroc-pigs
#11
Maren van Son, Eli Gjerlaug Enger, Harald Grove, Roger Ros-Freixedes, Matthew P Kent, Sigbjørn Lien, Eli Grindflek
BACKGROUND: Fatty acid composition contributes importantly to meat quality and is essential to the nutritional value of the meat. Identification of genetic factors underlying levels of fatty acids can be used to breed for pigs with healthier meat. The aim of this study was to conduct genome-wide association studies (GWAS) to identify QTL regions affecting fatty acid composition in backfat from the pig breeds Duroc and Landrace. RESULTS: Using data from the Axiom porcine 660 K array, we performed GWAS on 454 Duroc and 659 Landrace boars for fatty acid phenotypes measured by near-infrared spectroscopy (NIRS) technology (C16:0, C16:1n-7, C18:0, C18:1n-9, C18:2n-6, C18:3n-3, total saturated fatty acids, monounsaturated fatty acids and polyunsaturated fatty acids)...
May 11, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28485632/mycobacterium-tuberculosis-infection-in-a-domesticated-korean-wild-boar-sus-scrofa-coreanus
#12
Min-Goo Seo, In-Ohk Ouh, Munki Kim, Jienny Lee, Young-Hoan Kim, Jae-Cheul Do, Dongmi Kwak
Tuberculosis, a chronic progressive disease, has been reported in bovine, swine, and primate species. Here, we report the first case of Mycobacterium tuberculosis infection in a Korean wild boar ( Sus scrofa coreanus). The owners this domesticated boar brought it to the Gyeongbuk Veterinary Service Laboratory in Korea after it was found dead and severely emaciated. Demarcated yellowish white nodules were found around the larynx and retropharyngeal lymph node during necropsy. The lungs had diffuse fibrinous pleuritis, severe congestion, and scattered nodules...
May 9, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28485055/a-survey-of-single-nucleotide-polymorphisms-identified-from-whole-genome-sequencing-and-their-functional-effect-in-the-porcine-genome
#13
B N Keel, D J Nonneman, G A Rohrer
Genetic variants detected from sequence have been used to successfully identify causal variants and map complex traits in several organisms. High and moderate impact variants, those expected to alter or disrupt the protein coded by a gene and those that regulate protein production, likely have a more significant effect on phenotypic variation than do other types of genetic variants. Hence, a comprehensive list of these functional variants would be of considerable interest in swine genomic studies, particularly those targeting fertility and production traits...
May 8, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28475954/association-analysis-of-snps-in-the-porcine-cyp2e1-gene-with-skatole-indole-and-androstenone-levels-in-backfat-of-a-crossbred-pig-population
#14
Kateřina Zadinová, Roman Stupka, Antonín Stratil, Jaroslav Čítek, Karel Vehovský, Nicole Lebedová, Michal Šprysl, Monika Okrouhlá
The occurrence of boar taint in meat from uncastrated males may significantly affect the economics of pork production. The aim of this study was to analyse associations of four single nucleotide polymorphisms (SNPs) in the porcine CYP2E1 gene with skatole, indole, and androstenone levels in the Czech Large White-Czech Landrace commercial crossbreds. The SNPs were: g.2412C>T, c.1422C>T, c.1423G>A and c.*14G>T. Skatole, indole and androstenone levels were estimated by HPLC, and genotypes at the SNPs were determined by PCR-RFLP...
April 29, 2017: Meat Science
https://www.readbyqxmd.com/read/28475264/rfamide-related-peptide-3-and-gonadotropin-releasing-hormone-ii-are-autocrine-paracrine-regulators-of-testicular-function-in-the-boar
#15
REVIEW
Clay A Lents, Jennifer F Thorson, Amy T Desaulniers, Brett R White
Widespread use of artificial insemination in swine requires millions of doses of boar semen each year. Subfertility of boars remains a major constraint, which can impact the reproductive efficiency of thousands of sows, so a better understanding of testicular function is needed in order to develop methods to improve semen production. With this in mind, the effects of RFamide-related peptide 3 (RFRP3) and gonadotropin-releasing hormone-II (GnRH-II) on gonadotropin secretion and testicular function of pigs are reviewed here...
May 5, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28465592/gene-co-expression-network-analysis-identifies-porcine-genes-associated-with-variation-in-metabolizing-fenbendazole-and-flunixin-meglumine-in-the-liver
#16
Jeremy T Howard, Melissa S Ashwell, Ronald E Baynes, James D Brooks, James L Yeatts, Christian Maltecca
Identifying individual genetic variation in drug metabolism pathways is of importance not only in livestock, but also in humans in order to provide the ultimate goal of giving the right drug at the right dose at the right time. Our objective was to identify individual genes and gene networks involved in metabolizing fenbendazole (FBZ) and flunixin meglumine (FLU) in swine liver. The population consisted of female and castrated male pigs that were sired by boars represented by 4 breeds. Progeny were randomly placed into groups: no drug (UNT), FLU or FBZ administered...
May 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28464109/technical-note-genomic-evaluation-for-crossbred-performance-in-a-single-step-approach-with-metafounders
#17
T Xiang, O F Christensen, A Legarra
A single-step genomic BLUP method (ssGBLUP) has been successfully developed and applied for purebred and crossbred performance in pigs. However, it requires phasing the genotypes and inferring the breed origin of alleles in crossbred animals, which is somewhat inconvenient. Recently, a new concept of metafounders that considers the relationship within and across base populations was developed. With this concept of metafounders, regular methods to build and invert the pedigree relationships matrix can be used with only minor modifications and, moreover, genomic relationships and pedigree-based relationships are automatically compatible in the ssGBLUP...
April 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28464088/profile-and-reproductive-roles-of-seminal-plasma-melatonin-of-boar-ejaculates-used-in-artificial-insemination-programs
#18
I Barranco, A Casao, C Perez-Patiño, I Parrilla, T Muiño-Blanco, E A Martinez, J A Cebrian-Perez, J Roca
Melatonin (MLT) is present in seminal plasma (SP) of mammalian species, including pigs, and it is credited with antioxidant properties. This study aims to identify the sources of variation and the role of boar SP MLT on sperm quality and functionality and in vivo fertilizing ability of liquid-stored semen doses used in AI programs. The SP MLT was measured using an ELISA kit in a total of 219 ejaculates collected from 76 boars, and reproductive records of 5,318 AI sows were recorded. Sperm quality was assessed according to motility (computer-aided sperm analysis) and viability (cytometry evaluation)...
April 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28464072/insular-east-asia-pig-dispersal-and-vicariance-inferred-from-asian-wild-boar-genetic-evidence
#19
K Y Li, K T Li, C H Yang, M H Hwang, S W Chang, S M Lin, H J Wu, E B Basilio, R S A Vega, R P Laude, Y T Ju
The Formosan wild boar () is an endemic subspecies in Taiwan. Understanding the origins and spread of the Formosan wild boar could help clarify East Asian wild boar dispersion. Although in situ domestication of the wild boar occurred at a number of domestication centers across East Asia, corroborating archaeological and genetic evidence of pig domestication on Taiwan is lacking, leading to domestication being described as cryptic. This characterization applies to the Lanyu pig-a domestic pig breed found on Taiwan...
April 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28460669/pig-sperm-preincubation-and-gamete-coincubation-with-glutamate-enhance-sperm-oocyte-binding-and-in%C3%A2-vitro-fertilization
#20
M Spinaci, D Bucci, B Gadani, E Porcu, C Tamanini, G Galeati
As the taste receptor for monosodium glutamate (umami) is expressed in both murine and human spermatozoa and the presence of α-gustducin and α-transducin, G proteins involved in the umami taste signaling, has been described in boar germ cells, the aim of this study was to evaluate if monosodium glutamate (MSG) would exert any effect on sperm-oocyte binding, in vitro fertilization (IVF) and sperm parameters during in vitro induced capacitation. For sperm-zona pellucida binding assay, boar spermatozoa were preincubated for 1 h and then coincubated for 1 h with denuded in vitro matured oocytes in presence of different concentrations of MSG (0, 0...
June 2017: Theriogenology
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