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https://www.readbyqxmd.com/read/28717851/multidrug-resistant-salmonellae-isolated-in-japanese-quails-reared-in-abeokuta-nigeria
#1
Ezekiel O Omoshaba, F O Olufemi, O E Ojo, A O Sonibare, M Agbaje
Salmonellosis is a major bacterial disease causing huge economic losses in the poultry industry worldwide. This study was carried out to determine the period prevalence and antimicrobial susceptibility of Salmonella enterica in Japanese quails in Abeokuta, Nigeria. Four hundred cloacal swabs of quail birds were collected from 4 locations within Abeokuta. Salmonella was isolated from the samples using conventional methods for selective isolation of Salmonella and biochemical identification. Isolates were confirmed by polymerase chain reaction assays for the amplification and detection of Salmonella-associated virulence genes (invA and stn) using specific primers...
July 17, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28717047/annotated-draft-genome-assemblies-for-the-northern-bobwhite-colinus-virginianus-and-the-scaled-quail-callipepla-squamata-reveal-disparate-estimates-of-modern-genome-diversity-and-historic-effective-population-size
#2
David L Oldeschulte, Yvette A Halley, Miranda L Wilson, Eric K Bhattarai, Wesley Brashear, Joshua Hill, Richard P Metz, Charles D Johnson, Dale Rollins, Markus J Peterson, Derek M Bickhart, Jared E Decker, John F Sewell, Christopher M Seabury
Northern bobwhite (Colinus virginianus; hereafter bobwhite) and scaled quail (Callipepla squamata) populations have suffered precipitous declines across most of their U.S. ranges. Illumina-based first- (v1.0) and second-generation (v2.0) draft genome assemblies for the scaled quail and the bobwhite produced N50 scaffold sizes of 1.035 Mb and 2.042 Mb, thereby producing a 45-fold improvement in contiguity over the existing bobwhite assembly, and ≥ 90% of the assembled genomes were captured within 1,313 and 8,990 scaffolds, respectively...
July 17, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28715372/high-resolution-episcopic-microscopy-hrem-simple-and-robust-protocols-for-processing-and-visualizing-organic-materials
#3
Stefan H Geyer, Barbara Maurer-Gesek, Lukas F Reissig, Wolfgang J Weninger
We provide simple protocols for generating digital volume data with the high-resolution episcopic microscopy (HREM) method. HREM is capable of imaging organic materials with volumes up to 5 x 5 x 7 mm(3) in typical numeric resolutions between 1 x 1 x 1 and 5 x 5 x 5 µm(3). Specimens are embedded in methacrylate resin and sectioned on a microtome. After each section an image of the block surface is captured with a digital video camera that sits on the phototube connected to the compound microscope head. The optical axis passes through a green fluorescent protein (GFP) filter cube and is aligned with a position, at which the bock holder arm comes to rest after each section...
July 7, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28709736/supplementation-of-tris-based-extender-with-plasma-egg-yolk-of-six-avian-species-and-camel-skim-milk-for-chilled-preservation-of-dromedary-camel-semen
#4
Farnaz Panahi, Amir Niasari-Naslaji, Fahimehsadat Seyedasgari, Tahereh Ararooti, Kamal Razavi, Ali Akbar Moosavi-Movaheddi
The present study was conducted to investigate a suitable source (Expt. 1) and concentration (Expt. 2) of plasma egg yolk (PEY) and concentration of camel skim milk (CSM; Expt. 3) to supplement tris based extender for chilled storage of dromedary camel semen. In Expt. 1, PEY (20%) of six avian species (domestic chicken, domestic duck, Japanese quail, partridge, pigeon and guinea fowl) was added to semen extender. In Expt. 2, different concentrations (0, 10, 20, 30 and 40%) of selected PEY from Expt.1 were added to semen extender...
June 23, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28696837/japanese-quail-coturnix-japonica-liver-and-thyroid-gland-histopathology-as-a-result-of-in-ovo-exposure-to-the-flame-retardants-tris-1-3-dichloro-2-propyl-phosphate-and-dechlorane-plus
#5
Mona L Jacobsen, Veerle L B Jaspers, Tomasz M Ciesielski, Bjørn M Jenssen, Mari E Løseth, Nathalie Briels, Igor Eulaers, Páll S Leifsson, Frank F Rigét, Pilar Gomez-Ramirez, Christian Sonne
Japanese quails (Coturnix japonica) were exposed in ovo to tris(1,3-dichloro-2-propyl) phosphate (TDCIPP; 500 ng/µl), Dechlorane Plus (DP; 500 ng/µl), or a 1:1 mixture of these two to investigate the effects on liver and thyroid gland morphology. Histological examination of 14-day-old quails showed that exposure to TDCIPP or the mixture induced hepatic sinusoidal dilatation. No marked effects were seen for DP alone. In addition, the mixture produced divergence of thyroid gland follicles and proliferation of follicular cells...
July 11, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28695827/experimental-toxoplasmosis-in-japanese-quails-coturnix-coturnix-japonica
#6
Ayhan Atasever, Cahit Babür, Abdullah İnci, Görkem Ekebaş, Anıl İça
OBJECTIVE: In this study, forming of experimental toxoplasmosis in quails; clinical, pathological, and serological determination of tissue lesions and bioassay techniques, which were aimed to compare them and determine pathogenesis. METHODS: A total of 120 one-year-old female quails (Coturnix coturnix japonica) were divided into oral infection, parenteral infection, and control groups. The oral group was infected with 0.5 ml inoculum suspension containing 106 tachyzoites of Toxoplasma gondii, whereas the control group was administered 0...
June 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/28691244/probiotics-intake-from-proximal-or-distal-gastrointestinal-tract-the-investigation-on-intestinal-morphology-and-performance-of-japanese-quail
#7
K Seifi, M A Karimi-Torshizi, H Deldar
The aim of the present study was to investigate the efficacy of early single-dose probiotics administered from proximal or distal gastrointestinal tract on quails' performance and small intestinal morphology. A total of 120 Japanese quail (Coturnix coturnix japonica) 1-d-old chicks were divided into the following experimental groups before being transferred to the raising room: (i) control (no probiotic administered); (ii) oral group (received probiotics via oesophageal gavage); and (iii) vent lip group (received probiotics directly into vent)...
July 10, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28683170/noradrenergic-modulation-of-gonadotropin-inhibitory-hormone-gene-expression-in-the-brain-of-japanese-quail
#8
Yasuko Tobari, Norio Kansaku, Kazuyoshi Tsutsui
Gonadotropin-inhibitory hormone (GnIH) is a hypothalamic neuropeptide that inhibits gonadotropin synthesis and release in birds and mammals. In Japanese quail, GnIH neurons express the noradrenergic receptor and receive noradrenergic innervation. Treatment with noradrenaline (NA) stimulates GnIH release from diencephalic tissue blocks in vitro. However, the effects of NA on hypothalamic GnIH gene expression have not been determined. We investigated noradrenergic regulation of GnIH gene expression in the brain of male quail using the selective noradrenergic neurotoxin N-(2-chloroethyl)-N-ethyl-2-bromobenzylamine hydrochloride (DSP-4)...
July 6, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28671963/effects-of-selective-and-combined-activation-of-estrogen-receptor-%C3%AE-and-%C3%AE-on-reproductive-organ-development-and-sexual-behaviour-in-japanese-quail-coturnix-japonica
#9
Anna Mattsson, Björn Brunström
Excess estrogen exposure of avian embryos perturbs reproductive organ development in both sexes and demasculinizes the reproductive behaviors of adult males. We have previously shown that these characteristic effects on the reproductive organs also can be induced by exposure of Japanese quail (Coturnix japonica) embryos to selective agonists of estrogen receptor alpha (ERα). In contrast, the male copulatory behavior is only weakly affected by developmental exposure to an ERα agonist. To further elucidate the respective roles of ERα and ERβ in estrogen-induced disruption of sexual differentiation, we exposed Japanese quail embryos in ovo to the selective ERα agonist 16α-lactone-estradiol (16αLE2), the selective ERβ agonist WAY-200070, or both substances in combination...
2017: PloS One
https://www.readbyqxmd.com/read/28655569/the-hypaxial-origin-of-the-epaxially-located-rhomboid-muscles
#10
Minu Saberi, Qin Pu, Petr Valasek, Tannaz Norizadeh Abbariki, Ketan Patel, Ruijin Huang
In vertebrates, skeletal muscles of the body are made up of epaxial and hypaxial muscles based on their innervation and relative position to the vertebral column. The epaxial muscles are innervated by the dorsal branches of the spinal nerves and comprise the intrinsic (deep) back muscles, while the hypaxial muscles are innervated by the ventral branches of the spinal nerves including the plexus and consist of a heterogeneous group of intercostal, abdominal, and limb as well as girdle muscles. The canonical view holds that the epaxial muscles are derived from the medial halves of the somites, whereas the hypaxial muscles are all derived from the lateral somitic halves...
June 24, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28652545/the-chicken-is-an-interesting-animal-for-study-of-the-functional-role-of-ghrelin-in-the-gastrointestinal-tract
#11
Takio Kitazawa, Hiroki Teraoka, Hiroyuki Kaiya
Ghrelin has been identified in vertebrates from fish to mammals, and it has multiple biological activities including gastrointestinal (GI) motor-stimulating action. In some non-mammalian vertebrates, we examined the effects of ghrelin on contractility of the isolated GI tract as well as the mRNA expression of growth hormone secretagogue-receptor 1a (GHS-R1a) to determine whether the motor-stimulating action of ghrelin is common in vertebrates. The expression level of GHS-R1a mRNA differed depending on the species and on the GI region (stomach, small intestine, and colon)...
2017: Endocrine Journal
https://www.readbyqxmd.com/read/28644078/plasma-concentrations-of-itraconazole-voriconazole-and-terbinafine-when-delivered-by-an-impregnated-subcutaneous-implant-in-japanese-quail-coturnix-japonica
#12
Marcy J Souza, Patrick Redig, Sherry K Cox
Aspergillosis is a common fungal infection in both wild and pet birds. Although effective antifungal medications are available, treatment of aspergillosis can require months of medication administration, which entails stressful handling one or more times per day. This study examined the delivery of the antifungal drugs itraconazole, voriconazole, and terbinafine to Japanese quail ( Coturnix japonica ) via an impregnated implant. Implants contained 0.5, 3, 8, or 24 mg of itraconazole, voriconazole, or terbinafine...
June 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28638050/de-novo-yeast-genome-assemblies-from-minion-pacbio-and-miseq-platforms
#13
Francesca Giordano, Louise Aigrain, Michael A Quail, Paul Coupland, James K Bonfield, Robert M Davies, German Tischler, David K Jackson, Thomas M Keane, Jing Li, Jia-Xing Yue, Gianni Liti, Richard Durbin, Zemin Ning
Long-read sequencing technologies such as Pacific Biosciences and Oxford Nanopore MinION are capable of producing long sequencing reads with average fragment lengths of over 10,000 base-pairs and maximum lengths reaching 100,000 base- pairs. Compared with short reads, the assemblies obtained from long-read sequencing platforms have much higher contig continuity and genome completeness as long fragments are able to extend paths into problematic or repetitive regions. Many successful assembly applications of the Pacific Biosciences technology have been reported ranging from small bacterial genomes to large plant and animal genomes...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28637324/the-effects-of-phytosterols-on-the-sexual-behavior-and-reproductive-function-in-the-japanese-quail-coturnix-coturnix-japonica
#14
Mohammad Ibrahim Qasimi, Kentaro Nagaoka, Gen Watanabe
Phytosterols (PS) are plant origin sterols naturally found in many foods and added as food additives. Since 1950, PS have attracted considerable attention due to their ability to lower serum cholesterol and inhibit cardiovascular disease (CVD). However, recent studies have found that PS act as endocrine-disrupting chemicals in laboratory animals. Therefore, this study was aimed at finding the mechanism(s) for PS effects on the sexual behaviors and reproductive functions in male Japanese quails (Coturnix coturnix japonica)...
June 16, 2017: Poultry Science
https://www.readbyqxmd.com/read/28627772/bactericidal-effect-of-calcium-oxide-scallop-shell-powder-against-pseudomonas-aeruginosa-biofilm-on-quail-egg-shell-stainless-steel-plastic-and-rubber
#15
Soo-Jin Jung, Shin Young Park, Seh Eun Kim, Ike Kang, Jiyong Park, Jungwon Lee, Chang-Min Kim, Myung-Sub Chung, Sang-Do Ha
The aim of this study was to evaluate the bactericidal effect of calcium oxide (CaO) against Pseudomonas aeruginosa biofilms on quail eggshells and major egg contacting surfaces (stainless steel, plastic, and rubber). The samples were subjected to CaO treatments (0%, 0.01%, 0.05%, 0.10%, 0.15%, 0.20%, 0.25%, and 0.30%) for 1 min. All the CaO treatments significantly reduced P. aeruginosa biofilms on all tested surfaces as compared to controls. In comparison of biofilm stability, the strongest and most resistant biofilm was formed on eggshell against the CaO treatment, followed by rubber, stainless steel, and plastic...
June 19, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28620260/the-positive-expression-of-genotype-vii-newcastle-disease-virus-malaysian-isolate-in-japanese-quails-coturnix-coturnix-japonica
#16
Lizma Felisha Mazlan, Noor Farhana Bachek, Siti Nor Azizah Mahamud, Lokman Hakim Idris, Tan Sheau Wei, Abdul Rahman Omar, Mohd Hezmee Mohd Noor
AIM: Genotype VII Newcastle disease virus (NDV) is the most predominant NDV strains that circulating in Malaysia; thus, this study was aimed to determine the susceptibility of Japanese quails toward genotype VII NDV. Clinical signs, gross pathological lesions of organs, positive detection of virus in organs and cloacal swabs, as well as the expression of the antibody titer, were used as parameters to assess the susceptibility of Japanese quails following infection of genotype VII NDV...
May 2017: Veterinary World
https://www.readbyqxmd.com/read/28606119/molecular-epidemiology-of-avian-rotaviruses-group-a-and-d-shed-by-different-bird-species-in-nigeria
#17
Maude Pauly, Oluwole O Oni, Aurélie Sausy, Ademola A Owoade, Christopher A O Adeyefa, Claude P Muller, Judith M Hübschen, Chantal J Snoeck
BACKGROUND: Avian rotaviruses (RVs) cause gastrointestinal diseases of birds worldwide. However, prevalence, diversity, epidemiology and phylogeny of RVs remain largely under-investigated in Africa. METHODS: Fecal samples from 349 birds (158 symptomatic, 107 asymptomatic and 84 birds without recorded health status) were screened by reverse transcription PCR to detect RV groups A and D (RVA and RVD). Partial gene sequences of VP4, VP6, VP7 and NSP4 for RVA, and of VP6 and VP7 for RVD were obtained and analyzed to infer phylogenetic relationship...
June 12, 2017: Virology Journal
https://www.readbyqxmd.com/read/28576650/steroid-metabolism-in-the-brain-from-bird-watching-to-molecular-biology-a-personal-journey
#18
REVIEW
Jacques Balthazart
Since Arnold Adolph Berthold established in 1849 the critical role of the testes in the activation of male sexual behavior, intensive research has identified many sophisticated neurochemical and molecular mechanisms mediating this action. Studies in Japanese quail demonstrated the critical role of testosterone action and of testosterone aromatization in the sexually dimorphic medial preoptic nucleus in the activation of male copulatory behavior. The development of an immunohistochemical visualization of brain aromatase in quail then allowed further refinement in the localization of the sites of neuroestrogens production...
June 4, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28575073/a-comprehensive-retrospective-study-of-the-seroprevalence-of-h9n2-avian-influenza-viruses-in-occupationally-exposed-populations-in-china
#19
Xin Li, Bai Tian, Zhou Jianfang, Chen Yongkun, Li Xiaodan, Zhu Wenfei, Li Yan, Tang Jing, Guo Junfeng, Chen Tao, Gao Rongbao, Wang Dayan, Yuelong Shu
The H9N2 avian influenza virus circulates worldwide, predominantly in poultry. Its increasing infectivity and adaptation in poultry and mammals have enhanced the possibility of human infection. However, H9N2 human cases are difficult to detect due to their mild clinical symptoms. Serological study is valuable for risk assessment. A total of 15,700 serum samples were collected from occupationally exposed populations in 22 provinces of China and tested using hemagglutination inhibition (HI) and microneutralization (MN) assays...
2017: PloS One
https://www.readbyqxmd.com/read/28571695/influenza-viruses-production-evaluation-of-a-novel-avian-cell-line-duckcelt%C3%A2-t17
#20
Emma Petiot, Anaïs Proust, Aurélien Traversier, Laurent Durous, Frédéric Dappozze, Marianne Gras, Chantal Guillard, Jean-Marc Balloul, Manuel Rosa-Calatrava
The influenza vaccine manufacturing industry is looking for production cell lines that are easily scalable, highly permissive to multiple viruses, and more effective in term of viral productivity. One critical characteristic of such cell lines is their ability to grow in suspension, in serum free conditions and at high cell densities. Influenza virus causing severe epidemics both in human and animals is an important threat to world healthcare. The repetitive apparition of influenza pandemic outbreaks in the last 20years explains that manufacturing sector is still looking for more effective production processes to replace/supplement embryonated egg-based process...
May 29, 2017: Vaccine
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