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https://www.readbyqxmd.com/read/28211908/the-n-terminal-domain-of-schmallenberg-virus-envelope-protein-gc-is-highly-immunogenic-and-can-provide-protection-from-infection
#1
Kerstin Wernike, Andrea Aebischer, Gleyder Roman-Sosa, Martin Beer
Schmallenberg virus (SBV) is transmitted by insect vectors, and therefore vaccination is one of the most important tools of disease control. In our study, novel subunit vaccines on the basis of an amino-terminal domain of SBV Gc of 234 amino acids ("Gc Amino") first were tested and selected using a lethal small animal challenge model and then the best performing formulations also were tested in cattle. We could show that neither E. coli expressed nor the reduced form of "Gc Amino" protected from SBV infection...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28210245/pcr-inhibition-of-a-quantitative-pcr-for-detection-of-mycobacterium-avium-subspecies-paratuberculosis-dna-in-feces-diagnostic-implications-and-potential-solutions
#2
Kamal R Acharya, Navneet K Dhand, Richard J Whittington, Karren M Plain
Molecular tests such as polymerase chain reaction (PCR) are increasingly being applied for the diagnosis of Johne's disease, a chronic intestinal infection of ruminants caused by Mycobacterium avium subspecies paratuberculosis (MAP). Feces, as the primary test sample, presents challenges in terms of effective DNA isolation, with potential for PCR inhibition and ultimately for reduced analytical and diagnostic sensitivity. However, limited evidence is available regarding the magnitude and diagnostic implications of PCR inhibition for the detection of MAP in feces...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28209551/sero-prevalence-risk-factors-and-distribution-of-foot-and-mouth-disease-in-ethiopia
#3
REVIEW
Nejash Abdela
Foot and mouth disease (FMD), world's most important highly infectious and contagious trans-boundary animal diseases, is responsible for huge global losses of livestock production as well as severe impacts on international trade. This vesicular disease is caused by foot and mouth disease virus of the genus Aphthovirus, family Picornaviridae. Currently FMD is major global animal health problem and endemic in Africa including Ethiopia. This paper systematically reviewed the sero-prevalence reports, associated risk factors and distribution of FMD in Ethiopia with the main aim of making compressive document on prevalence, risk factor and distribution of the disease thus helping as a basis for designing effective control strategies...
February 13, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28209213/invited-review-relationship-between-cattle-transport-immunity-and-respiratory-disease
#4
B Earley, K Buckham Sporer, S Gupta
The association between transportation and the occurrence of the bovine respiratory disease complex (BRDC) has long been recognised. Many hypotheses regarding this association have been declared through the past decades, and it is agreed upon by most researchers that the multiple stressors that calves experience during transportation result in an overall immunosuppression that allows the respiratory tract to be invaded by numerous opportunistic pathogens. Furthermore, the innate immune cells, neutrophils, may be trapped in a paradox whereby their crucial defence and pathogen-killing activities are counteracted by excessive inflammation and tissue damage that may exacerbate disease, including the BRDC...
March 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28209138/using-whole-genome-sequencing-to-investigate-transmission-in-a-multi-host-system-bovine-tuberculosis-in-new-zealand
#5
Joseph Crispell, Ruth N Zadoks, Simon R Harris, Brent Paterson, Desmond M Collins, Geoffrey W de-Lisle, Paul Livingstone, Mark A Neill, Roman Biek, Samantha J Lycett, Rowland R Kao, Marian Price-Carter
BACKGROUND: Bovine tuberculosis (bTB), caused by Mycobacterium bovis, is an important livestock disease raising public health and economic concerns around the world. In New Zealand, a number of wildlife species are implicated in the spread and persistence of bTB in cattle populations, most notably the brushtail possum (Trichosurus vulpecula). Whole Genome Sequenced (WGS) M. bovis isolates sourced from infected cattle and wildlife across New Zealand were analysed. Bayesian phylogenetic analyses were conducted to estimate the substitution rate of the sampled population and investigate the role of wildlife...
February 16, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28209121/evolution-of-toll-like-receptors-in-the-context-of-terrestrial-ungulates-and-cetaceans-diversification
#6
Edson Ishengoma, Morris Agaba
BACKGROUND: Toll-like receptors (TLRs) are the frontline actors in the innate immune response to various pathogens and are expected to be targets of natural selection in species adapted to habitats with contrasting pathogen burdens. The recent publication of genome sequences of giraffe and okapi together afforded the opportunity to examine the evolution of selected TLRs in broad range of terrestrial ungulates and cetaceans during their complex habitat diversification. Through direct sequence comparisons and standard evolutionary approaches, the extent of nucleotide and protein sequence diversity in seven Toll-like receptors (TLR2, TLR3, TLR4, TLR5, TLR7, TLR9 and TLR10) between giraffe and closely related species was determined...
February 16, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28208218/antibiotic-resistance-in-escherichia-coli-in-husbandry-animals-the-african-perspective
#7
REVIEW
Carla Andrea Alonso, Myriam Zarazaga, Rym Ben Sallem, Ahlem Jouini, Karim Ben Slama, Carmen Torres
In the last years different surveillances have been published in Africa, especially in Northern countries, regarding antimicrobial resistance among husbandry animals. Information is still scarce, but the available data shows a worrying picture. Although the highest resistance rates have been described against tetracycline, penicillins and sulphonamides, prevalence of plasmid mediated quinolone resistance genes and extended-spectrum β-lactamase (ESBL) are being increasingly reported. Among ESBLs, the CTX-M-1 group was dominant in most African surveys, being CTX-M-15 the main variant both in animals and humans, except in Tunisia where CTX-M-1 was more frequently detected among E...
February 16, 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28207789/carbapenem-resistance-and-pathogenicity-of-bovine-acinetobacter-indicus-like-isolates
#8
Peter Klotz, Stephan Göttig, Ursula Leidner, Torsten Semmler, Sandra Scheufen, Christa Ewers
The objective of this study was to characterize blaOXA-23 harbouring Acinetobacter indicus-like strains from cattle including genomic and phylogenetic analyses, antimicrobial susceptibility testing and evaluation of pathogenicity in vitro and in vivo. Nasal and rectal swabs (n = 45) from cattle in Germany were screened for carbapenem-non-susceptible Acinetobacter spp. Thereby, two carbapenem resistant Acinetobacter spp. from the nasal cavities of two calves could be isolated. MALDI-TOF mass spectrometry and 16S rDNA sequencing identified these isolates as A...
2017: PloS One
https://www.readbyqxmd.com/read/28207756/structural-changes-on-a-molecular-basis-of-canola-meal-by-conditioning-temperature-and-time-during-pelleting-process-in-relation-to-physiochemical-energy-and-protein-properties-relevant-to-ruminants
#9
Xuewei Huang, Huihua Zhang, Peiqiang Yu
The objectives of this study were: (1) To investigate the effects of conditioning temperature (70, 80, 90°C), time (30, 60 sec), and interaction (temperature × time) during the pelleting process on internal protein molecular structure changes of the co-products; (2) To identify differences in protein molecular structures among pellets that were processed under different conditions, and between unprocessed mash and pellets; 3) To quantify protein molecular structure changes in relation to predicted energy and protein utilization in dairy cows...
2017: PloS One
https://www.readbyqxmd.com/read/28207746/protease-resistance-of-infectious-prions-is-suppressed-by-removal-of-a-single-atom-in-the-cellular-prion-protein
#10
Henning Leske, Simone Hornemann, Uli Simon Herrmann, Caihong Zhu, Paolo Dametto, Bei Li, Florent Laferriere, Magdalini Polymenidou, Pawel Pelczar, Regina Rose Reimann, Petra Schwarz, Elisabeth Jane Rushing, Kurt Wüthrich, Adriano Aguzzi
Resistance to proteolytic digestion has long been considered a defining trait of prions in tissues of organisms suffering from transmissible spongiform encephalopathies. Detection of proteinase K-resistant prion protein (PrPSc) still represents the diagnostic gold standard for prion diseases in humans, sheep and cattle. However, it has become increasingly apparent that the accumulation of PrPSc does not always accompany prion infections: high titers of prion infectivity can be reached also in the absence of protease resistant PrPSc...
2017: PloS One
https://www.readbyqxmd.com/read/28207374/emergence-of-pestiviruses-in-cattle-and-swine-with-atypical-clinical-outcomes-and-lesions
#11
C Chase
No abstract text is available yet for this article.
March 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28205235/differences-in-the-nutrient-concentrations-in-vitro-methanogenic-potential-and-other-fermentative-traits-of-tropical-grasses-and-legumes-for-beef-production-systems-in-northern-australia
#12
Zoey Durmic, Carlos A Ramírez-Restrepo, Chris Gardiner, Christopher J O'Neill, Eman Hussein, Phillip E Vercoe
BACKGROUND: In northern Australia, beef cattle grazed extensively on tropical rangelands are responsible for 5 % of the nation's total greenhouse gas emissions. Methane (CH4 ) is a potent greenhouse gas and in grazing ruminants might be mitigated by selecting forages that, when consumed, produce less CH4 when fermented by rumen microbes. This study examined variability in the in vitro fermentation patterns including CH4 production of selected tropical grasses and legumes to identify candidates for CH4 mitigation in grazing livestock in northern Australia...
February 16, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28203367/efficacy-of-washing-and-disinfection-in-cattle-markets-in-ireland
#13
Jarlath T O Connor, Tracy A Clegg, Simon J More
BACKGROUND: Few studies have reported on the effectiveness of the washing and disinfection methods used in cattle markets in Ireland. Purchasing cattle into recipient herds poses a high biosecurity risk due to the possibility of introducing disease. In Ireland, livestock markets are an important intermediary in the movement of cattle to new herds. Thus disease control strategies need to consider the disease risk associated with moving livestock through markets. Some cattle are also moved directly from markets for slaughter at abattoirs...
2017: Irish Veterinary Journal
https://www.readbyqxmd.com/read/28202594/surface-microtopography-modulates-sealing-zone-development-in-osteoclasts-cultured-on-bone
#14
Michal Shemesh, Lia Addadi, Benjamin Geiger
Bone homeostasis is continuously regulated by the coordinated action of bone-resorbing osteoclasts and bone-forming osteoblasts. Imbalance between these two cell populations leads to pathological bone diseases such as osteoporosis and osteopetrosis. Osteoclast functionality relies on the formation of sealing zone (SZ) rings that define the resorption lacuna. It is commonly assumed that the structure and dynamic properties of the SZ depend on the physical and chemical properties of the substrate. Considering the unique complex structure of native bone, elucidation of the relevant parameters affecting SZ formation and stability is challenging...
February 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28201995/zoonotic-necrotizing-myositis-caused-by-streptococcus-equi-subsp-zooepidemicus-in-a-farmer
#15
Bård Reiakvam Kittang, Veronika Kuchařová Pettersen, Oddvar Oppegaard, Dag Harald Skutlaberg, Håvard Dale, Harald G Wiker, Steinar Skrede
BACKGROUND: Streptococcus equi subsp. zooepidemicus is a beta-hemolytic group C streptococcus mainly causing infections in domesticated animals. Here we describe the first case of zoonotic necrotizing myositis caused by this bacterium. CASE PRESENTATION: The patient was a 73-year-old, previously healthy farmer with two asymptomatic Shetland ponies in his stable. After close contact with the ponies while feeding them, he rapidly developed erythema of his left thigh and sepsis with multiple organ failure...
February 15, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28199171/climate-adaptation-of-tropical-cattle
#16
W Barendse
There is sustained growth in the number of tropical cattle, which represent more than half of all cattle worldwide. By and large, most research in tropical areas is still focused on breeds of cattle, their particular advantages or disadvantages in tropical areas, and the tropical forages or feeds that could be usefully fed to them. A consistent issue for adaptation to climate is the heat of tropical environments. Changing the external characteristics of the animal, such as color and coat characteristics, is one way to adapt, and there are several major genes for these traits...
February 8, 2017: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/28199145/characterization-and-virulence-potential-of-serogroup-o113-shiga-toxin-producing-escherichia-coli-strains-isolated-from-beef-and-cattle-in-the-united-states
#17
Peter Feng, Sabine Delannoy, David W Lacher, Joseph M Bosilevac, Patrick Fach
Shiga toxin-producing Escherichia coli (STEC) of serotype O113:H21 have caused severe diseases but are unusual in that they do not produce the intimin protein required for adherence to intestinal epithelial cells. Strains of serogroup O113 are one of the most common STEC found in ground beef and beef products in the United States, but their virulence potential is unknown. We used a microarray to characterize 65 O113 strains isolated in the United States from ground beef, beef trim, cattle feces, and fresh spinach...
February 15, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28198054/regulation-of-atf1-and-atf2-transcripts-by-sequences-in-their-3-untranslated-region-in-cleavage-stage-cattle-embryos
#18
Ernesto Orozco-Lucero, Isabelle Dufort, Marc-André Sirard
No abstract text is available yet for this article.
February 15, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28197622/-practicing-veterinarians-perception-of-bovine-ringworm-as-herd-health-problem
#19
Joachim L Kleen, Tatjana Andres, Ulrike Exner, Regina Strie
OBJECTIVE: Bovine ringworm (tinea) is generally described as a disease occurring regularly in cattle. Actual data are rare, whereas the disease is regularly reported in case reports. To eradicate bovine ringworm, perception as well as measures, including hygiene and disinfection, are required. MATERIAL AND METHODS: In a course for continuing education, 378 practicing veterinarians were asked in a questionnaire to state their view on bovine ringworm. RESULTS: The majority of the participants stated that ringworm was not satisfactorily perceived as an animal health problem and that the zoonotic potential was underestimated...
February 15, 2017: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
https://www.readbyqxmd.com/read/28197171/genome-wide-microrna-binding-site-variation-between-extinct-wild-aurochs-and-modern-cattle-identifies-candidate-microrna-regulated-domestication-genes
#20
Martin Braud, David A Magee, Stephen D E Park, Tad S Sonstegard, Sinead M Waters, David E MacHugh, Charles Spillane
The domestication of cattle from the now-extinct wild aurochs (Bos primigenius) involved selection for physiological and behavioral traits, with underlying genetic factors that remain largely unknown. Non-coding microRNAs have emerged as key regulators of the spatio-temporal expression of target genes controlling mammalian growth and development, including in livestock species. During the domestication process, selection of mutational changes in miRNAs and/or miRNA binding sites could have provided a mechanism to generate some of the traits that differentiate domesticated cattle from wild aurochs...
2017: Frontiers in Genetics
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