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https://www.readbyqxmd.com/read/28241078/genetic-evidence-from-mitochondrial-dna-corroborates-the-origin-of-tibetan-chickens
#1
Long Zhang, Pu Zhang, Qingqing Li, Uma Gaur, Yiping Liu, Qing Zhu, Xiaoling Zhao, Yan Wang, Huadong Yin, Yaodong Hu, Aiping Liu, Diyan Li
Chicken is the most common poultry species and is important to human societies. Tibetan chicken (Gallus gallus domesticus) is a breed endemic to China that is distributed mainly on the Qinghai-Tibet Plateau. However, its origin has not been well characterized. In the present study, we sequenced partial mitochondrial DNA (mtDNA) control region of 239 and 283 samples from Tibetan and Sichuan indigenous chickens, respectively. Incorporating 1091 published sequences, we constructed the matrilineal genealogy of Tibetan chickens to further document their domestication history...
2017: PloS One
https://www.readbyqxmd.com/read/28240293/evolution-of-the-functionally-conserved-dcc-gene-in-birds
#2
Cedric Patthey, Yong Guang Tong, Christine Mary Tait, Sara Ivy Wilson
Understanding the loss of conserved genes is critical for determining how phenotypic diversity is generated. Here we focus on the evolution of DCC, a gene that encodes a highly conserved neural guidance receptor. Disruption of DCC in animal models and humans results in major neurodevelopmental defects including commissural axon defects. Here we examine DCC evolution in birds, which is of particular interest as a major model system in neurodevelopmental research. We found the DCC containing locus was disrupted several times during evolution, resulting in both gene losses and faster evolution rate of salvaged genes...
February 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28240160/dietary-additive-probiotics-modulation-of-the-intestinal-microbiota
#3
Shenglan Hu, Li Wang, Zongyong Jiang
The importance of the intestinal microbiota of animals is widely acknowledged because of its vital role in the health of animals. There are complex communities of microbiota, which colonize the gastrointestinal tract. Intestinal microbiota are conductive to animal health and the development of the host immune system. Probiotics are commonly used dietary additives where they provide the host with many beneficial functions, such as modulating intestinal homeostasis and promoting gut health. These beneficial effects of probiotics may accrue from the inhibiting the growth of pathogenic bacteria and promoting the growth of beneficial flora in the gastrointestinal tract...
February 23, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28238880/analysis-on-the-expression-and-function-of-a-chicken-type-and-goose-type-lysozymes-in-chinese-giant-salamanders-andrias-davidianus
#4
Hui Yang, Ranran Liu, Dan Cui, Haixia Liu, Dongmei Xiong, Xiaolin Liu, Lixin Wang
Lysozymes as an important immune factor, play vital roles in innate immune response against pathogen infection. In the present study, one c-type and g-type lysozymes were identified from Chinese giant salamander (Andrias davidianus). They shared highly conserved structural features with lysozymes from other species. Spatial expression analysis revealed that AdlysC transcript was most abundant in liver and stomach, and least in muscle and brain. In contrast, the expression level of AdlysG was most abundant in liver and least in muscle and skin...
February 23, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28238845/multilocus-sequence-typing-analyses-of-clostridium-perfringens-type-a-strains-harboring-tpel-and-netb-genes
#5
V Nakano, A Ignacio, L Llanco, V Bueris, M P Sircili, M J Avila-Campos
Clostridium perfringens is an anaerobic bacterium ubiquitous in various environments, especially in soil and the gastrointestinal tract of healthy humans and animals. In this study, multilocus sequence typing protocol was used to investigate genotypic relationships among 40 C. perfringens strains isolated from humans and broiler chicken with necrotic enteritis [NE]. The results indicated a few clonal populations, mainly observed in human strains, with 32.5% of all strains associated with one of three clonal complexes and 30 sequences types...
February 23, 2017: Anaerobe
https://www.readbyqxmd.com/read/28238801/chromosomal-location-of-the-fosa3-and-blactx-m-genes-in-proteus-mirabilis-and-clonal-spread-of-escherichia-coli-st117-carrying-fosa3-positive-inchi2-st3-or-f2-a-b-plasmids-in-a-chicken-farm
#6
Dandan He, Lanping Liu, Baowei Guo, Shengjun Wu, Xiaojie Chen, Jing Wang, Zhenling Zeng, Jian-Hua Liu
The aim of this study was to investigate the spread and location of the fosA3 gene among Enterobacteriaceae from diseased broiler chickens. Twenty-nine Escherichia coli and seven Proteus mirabilis isolates recovered from one chicken farm were screened for the presence of plasmid-mediated fosfomycin resistance genes by PCR. The clonal relatedness of fosA3-positive isolates, the transferability and location of fosA3, and the genetic context of the fosA3 gene were determined. Seven P. mirabilis isolates with three different pulsed-field gel electrophoresis (PFGE) patterns and five E...
February 23, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28238371/characterization-of-lignocellulosic-compositions-degradation-during-chicken-manure-composting-with-added-biochar-by-phospholipid-fatty-acid-plfa-and-correlation-analysis
#7
Ning Liu, Jialiang Zhou, Lujia Han, Guangqun Huang
Biorefractory high polymer lignocellulosic compositions may limit rapid composting and stable decomposition. Because their degradation during composting is not well understood, the correlation with microbial community profiles was assessed to reveal degradation mechanism of lignocellulosic compositions. Testing of chicken manure aerobic composting with added biochar was performed using phospholipid fatty acid (PLFA) and correlation analysis. Results demonstrated a good composting effect with good dynamic correlation between microbial characteristic (PLFA) and lignocellulosic compositions' degradation ratio...
February 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28237498/cooperative-effects-of-immune-enhancer-tppps-and-different-adjuvants-on-antibody-responses-induced-by-recombinant-alv-j-gp85-subunit-vaccines-in-spf-chickens
#8
Yang Li, Fanfeng Meng, Shuai Cui, Jiayuan Fu, Yixin Wang, Zhizhong Cui, Shuang Chang, Peng Zhao
To explore the antibody responses and protective effects induced by subgroup J avian leukosis virus (ALV-J) gp85 protein vaccine plus different adjuvants (CpG and white oil adjuvant YF01) combined with the immune enhancer Taishan Pinus massoniana pollen polysaccharide (TPPPS), we immunized SPF chickens with the recombinant ALV-J gp85 protein, along with different adjuvants and immune enhancer, which protected the chickens by inducing different levels of protective antibodies. Results showed that a single injection of gp85 recombinant protein could only produce low-titre antibodies that were maintained over a short time in few chickens...
February 22, 2017: Vaccine
https://www.readbyqxmd.com/read/28236815/an-assessment-of-the-microbiological-quality-of-lightly-cooked-food-including-sous-vide-at-the-point-of-consumption-in-england
#9
F Jørgensen, L Sadler-Reeves, J Shore, H Aird, N Elviss, A Fox, M Kaye, C Willis, C Amar, E DE Pinna, J McLauchlin
This observational study aims to investigate the microbiological quality of commercially prepared lightly cooked foods with a major component of food of animal origin and collected as would be served to a consumer. A total of 356 samples were collected from catering (92%), retail (7%) or producers (1%) and all were independent of known incidents of foodborne illness. Using standard methods, all samples were tested for: the presence of Campylobacter spp. and Salmonella spp. and enumerated for levels of, Bacillus spp...
February 27, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28236203/analysis-of-certain-fatty-acids-and-toxic-metal-bioaccumulation-in-various-tissues-of-three-fish-species-that-are-consumed-by-turkish-people
#10
Gökçe Kaya, Semra Türkoğlu
Concentrations of toxic metals (Mn, Ni, Hg, Cd, Pb, Cr) in the muscle, skin, and liver of Mugil cephalus, Mullus barbatus, and Pagellus erythrinus which were purchased in large supermarkets of Elazig, and Mullus barbatus, which were caught on the sea of İskenderun Bay, Turkey, were analyzed. Fundamental analyses were carried out by inductively coupled plasma-mass spectrometry (ICP-MS) after samples were prepared by microwave digestion. Mean metal concentrations in different tissues were varied in the ranges of Cd 4-426, Cr 116-4458, Mn 141-24774, Hg 9-471, Pb 96-695, and Ni 68-6581 μg kg(-1), for wet weight...
February 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28235995/hydrazide-functionalized-affinity-on-conventional-support-materials-for-glycopeptide-enrichment
#11
Muhammad Salman Sajid, Fahmida Jabeen, Dilshad Hussain, Muhammad Naeem Ashiq, Muhammad Najam-Ul-Haq
In affinity chromatography, enrichment of biomolecules is dependent on the selection of affinity sites immobilized onto a suitable support material. A few hydrazide - functionalized materials with surface modification protocols compatible to conventional support materials like silica and cellulose are reported. The study demonstrates the modification/derivatization pathways that can be adopted to modify the support materials with similar surface chemistry like cellulose, poly(GMA/DVB), or diamond. Poly(GMA/DVB) and cellulose represent hydrophilic supports whereas diamond is a hydrophobic support material...
February 24, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28235482/srsf1-3-contributes-to-diversification-of-the-immunoglobulin-variable-region-gene-by-promoting-accumulation-of-aid-in-the-nucleus
#12
Yuka Kawaguchi, Hiroaki Nariki, Naoko Kawamoto, Yuichi Kanehiro, Satoshi Miyazaki, Mari Suzuki, Masaki Magari, Hiroshi Tokumitsu, Naoki Kanayama
Activation-induced cytidine deaminase (AID) is essential for diversification of the Ig variable region (IgV). AID is excluded from the nucleus, where it normally functions. However, the molecular mechanisms responsible for regulating AID localization remain to be elucidated. The SR-protein splicing factor SRSF1 is a nucleocytoplasmic shuttling protein, a splicing isoform of which called SRSF1-3, has previously been shown to contribute to IgV diversification in chicken DT40 cells. In this study, we examined whether SRSF1-3 functions in IgV diversification by promoting nuclear localization of AID...
February 21, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28235456/detection-of-histidine-rich-glycoprotein-and-fibrinogen-with-nickel-enzyme-conjugates-purification-of-rabbit-hrg
#13
Mathia Colwell, Najma Ahmed, Ralph Butkowski
Nickel-bound alkaline phosphatase and peroxidase enzymes were used to investigate nickel binding to plasma proteins. Rabbit plasma dilutions to 25,000 were positive by ELISA, while Western blot analysis showed a prominent reaction with histidine-rich glycoprotein (HRG)(1) and lower reaction with fibrinogen (Fgn). To confirm their identities, purified HRG and Fgn were demonstrated to react with the nickel-bound enzymes by Western analysis. With disulfide bonds reduced, HRG and Fgn α-chain reactions were demonstrated...
February 21, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28235410/tcf21-is-related-to-testis-growth-and-development-in-broiler-chickens
#14
Hui Zhang, Wei Na, Hong-Li Zhang, Ning Wang, Zhi-Qiang Du, Shou-Zhi Wang, Zhi-Peng Wang, Zhiwu Zhang, Hui Li
BACKGROUND: Large amounts of fat deposition often lead to loss of reproductive efficiency in humans and animals. We used broiler chickens as a model species to conduct a two-directional selection for and against abdominal fat over 19 generations, which resulted in a lean and a fat line. Direct selection for abdominal fat content also indirectly resulted in significant differences (P < 0.05) in testis weight (TeW) and in TeW as a percentage of total body weight (TeP) between the lean and fat lines...
February 24, 2017: Genetics, Selection, Evolution: GSE
https://www.readbyqxmd.com/read/28231696/performance-differences-of-rhode-island-red-bashang-long-tail-chicken-and-their-reciprocal-crossbreds-under-natural-cold-stress
#15
Shanshan Xie, Xukai Yang, Yahui Gao, Wenjie Jiao, Xinghua Li, Yajie Li, Zhonghua Ning
Objective: The Bashang Long-tail chicken (BS), an indigenous Chinese breed, is considered cold tolerant. We selected BS, the Rhode Island Red (RIR), and their reciprocal crossbreds for the present study. The objectives were: 1) to validate whether BS is cold tolerant and whether egg production and cold tolerance of crossbreds could be improved; and 2) to determine the physiological characteristics that underlie cold tolerance and favorable egg production performance in cold environments...
February 23, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28231319/development-of-a-keratinase-activity-assay-using-recombinant-chicken-feather-keratin-substrates
#16
Hyeon-Su Jin, Seon Yeong Park, Kyungmin Kim, Yong-Jik Lee, Gae-Won Nam, Nam Joo Kang, Dong-Woo Lee
Poultry feathers consist mainly of the protein keratin, which is rich in β-pleated sheets and consequently resistant to proteolysis. Although many keratinases have been identified, the reasons for their substrate specificity towards β-keratin remain unclear due to difficulties in preparing a soluble feather keratin substrate for use in activity assays. In the present study, we overexpressed Gallus gallus chromosomes 2 and 27 β-keratin-encoding genes in Escherichia coli, purified denatured recombinant proteins by Ni2+ affinity chromatography, and refolded by stepwise dialysis to yield soluble keratins...
2017: PloS One
https://www.readbyqxmd.com/read/28231248/intensive-trapping-of-blood-fed-anopheles-darlingi-in-amazonian-peru-reveals-unexpectedly-high-proportions-of-avian-blood-meals
#17
Marta Moreno, Marlon P Saavedra, Sara A Bickersmith, Catharine Prussing, Adrian Michalski, Carlos Tong Rios, Joseph M Vinetz, Jan E Conn
Anopheles darlingi, the main malaria vector in the Neotropics, has been considered to be highly anthropophilic. However, many behavioral aspects of this species remain unknown, such as the range of blood-meal sources. Barrier screens were used to collect resting Anopheles darlingi mosquitoes from 2013 to 2015 in three riverine localities (Lupuna, Cahuide and Santa Emilia) in Amazonian Peru. Overall, the Human Blood Index (HBI) ranged from 0.58-0.87, with no significant variation among years or sites. Blood-meal analysis revealed that humans are the most common blood source, followed by avian hosts (Galliformes-chickens and turkeys), and human/Galliforme mixed-meals...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28231148/potential-use-of-gamma-irradiated-ethnic-ready-to-eat-foods-to-improve-the-nutritional-status-of-landslide-victims
#18
REVIEW
Zubaidah Irawati Koenari, Carmen M Siagian, Bona Simanungkalit, Asti Nilatany, Indra Mustika Pratama, Deudeu Lasmawati, Cecep M Nurcahya
The safety and high quality of ethnic ready-to-eat foods as a source of nourishment and food supplies chain to the remote areas become particularly important. Consuming healthy and balanced nutritional foods means eating better quality foods in proper quantities. Such foods can be developed through a preservation technique by using ionizing radiation. Although implementation of the technology for certain foodstuffs has been implemented in some countries, application of the process to a complete set of meals for selected target groups is still very limited...
July 26, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28230769/hypoallergenic-variant-of-the-major-egg-white-allergen-gal-d-1-produced-by-disruption-of-cysteine-bridges
#19
Pathum Dhanapala, Dulashi Withanage-Dona, Mimi L K Tang, Tim Doran, Cenk Suphioglu
Gal d 1 (ovomucoid) is the dominant allergen in the chicken egg white. Hypoallergenic variants of this allergen can be used in immunotherapy as an egg allergy treatment approach. We hypothesised that disruption of two of the nine cysteine-cysteine bridges by site-directed mutagenesis will allow the production of a hypoallergenic variant of the protein; Methods: Two cysteine residues at C192 and C210 in domain III of the protein were mutated to alanine using site-directed mutagenesis, to disrupt two separate cysteine-cysteine bridges...
February 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28230525/inference-and-forecast-of-h7n9-influenza-in-china-2013-to-2015
#20
Ruiyun Li, Yuqi Bai, Alex Heaney, Sasikiran Kandula, Jun Cai, Xuyi Zhao, Bing Xu, Jeffrey Shaman
The recent emergence of A(H7N9) avian influenza poses a significant challenge to public health in China and around the world; however, understanding of the transmission dynamics and progression of influenza A(H7N9) infection in domestic poultry, as well as spillover transmission to humans, remains limited. Here, we develop a mathematical model-Bayesian inference system which combines a simple epidemic model and data assimilation method, and use it in conjunction with data on observed human influenza A(H7N9) cases from 19 February 2013 to 19 September 2015 to estimate key epidemiological parameters and to forecast infection in both poultry and humans...
February 16, 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
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