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https://www.readbyqxmd.com/read/29156513/production-and-characterization-of-keratinolytic-proteases-by-a-chicken-feather-degrading-thermophilic-strain-thermoactinomyces-sp-yt06
#1
Lin Wang, Yuting Qian, Yun Cao, Ying Huang, Zhizhou Chang, Hongying Huang
Thermoactinomyces sp. strain YT06 was isolated from poultry compost and observed to degrade integral chicken feathers at 60°C completely, resulting in the formation of 3.24 mg/mL of free amino acid from 50 mL of culture containing 10 g/L chicken feathers. Strain YT06 could grow and secret keratinase using feather as the only carbon and nitrogen sources without other supplement, but complementation of 10 g/L sucrose and 4 g/L NaNO₃ increased the production of the keratinolytic enzyme. The maximum protease activities obtained were 110 U/mL and keratinase were 42 U/mL...
November 21, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29156391/optimal-allocation-of-physical-water-resources-integrated-with-virtual-water-trade-in-water-scarce-regions-a-case-study-for-beijing-china
#2
Quanliang Ye, Yi Li, La Zhuo, Wenlong Zhang, Wei Xiong, Chao Wang, Peifang Wang
This study provides an innovative application of virtual water trade in the traditional allocation of physical water resources in water scarce regions. A multi-objective optimization model was developed to optimize the allocation of physical water and virtual water resources to different water users in Beijing, China, considering the trade-offs between economic benefit and environmental impacts of water consumption. Surface water, groundwater, transferred water and reclaimed water constituted the physical resource of water supply side, while virtual water flow associated with the trade of five major crops (barley, corn, rice, soy and wheat) and three livestock products (beef, pork and poultry) in agricultural sector (calculated by the trade quantities of products and their virtual water contents)...
November 14, 2017: Water Research
https://www.readbyqxmd.com/read/29155570/chemistry-antimicrobial-mechanisms-and-antibiotic-activities-of-cinnamaldehyde-against-pathogenic-bacteria-in-animal-feeds-and-human-foods
#3
Mendel Friedman
Cinnamaldehyde is a major constituent of cinnamon essential oils produced by aromatic cinnamon plants. This compound has been reported to exhibit antimicrobial properties in vitro in laboratory media and in animal feeds and human foods contaminated with disease-causing bacteria including Bacillus cereus, Campylobacter jejuni, Clostridium perfringens, Escherichia coli, Listeria monocytogenes, and Salmonella enterica. This integrated review surveys and interprets our current knowledge of the chemistry, analysis, safety, mechanism of action, and antibiotic activities of cinnamaldehyde in food animal (cattle, lambs, calves, pigs, poultry) diets and in widely consumed liquid (apple, carrot, tomato, and watermelon juices, milk) and solid foods...
November 20, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29154745/differential-gene-expression-in-chicken-primary-b-cells-infected-ex-vivo-with-attenuated-and-very-virulent-strains-of-infectious-bursal-disease-virus-ibdv
#4
Katherine L Dulwich, Efstathios S Giotis, Alice Gray, Venugopal Nair, Michael A Skinner, Andrew J Broadbent
Infectious bursal disease virus (IBDV) belongs to the family Birnaviridae and is economically important to the poultry industry worldwide. IBDV infects B cells in the bursa of Fabricius (BF), causing immunosuppression and morbidity in young chickens. In addition to strains that cause classical Gumboro disease, the so-called 'very virulent' (vv) strain, also in circulation, causes more severe disease and increased mortality. IBDV has traditionally been controlled through the use of live attenuated vaccines, with attenuation resulting from serial passage in non-lymphoid cells...
November 20, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/29154397/effects-of-high-ambient-temperature-on-plasma-metabolomic-profiles-in-chicks
#5
Shozo Tomonaga, Hirofumi Okuyama, Tetsuya Tachibana, Ryosuke Makino
Exposure to high ambient temperature is detrimental to the poultry industry. To understand the influence from a metabolic perspective, we investigated the effects of exposure to high ambient temperature on plasma low-molecular-weight metabolite levels in chicks using gas chromatography/mass spectrometry-based non-targeted metabolomic analysis. Heat exposure for 4 days suppressed growth and food intake. Of the 92 metabolites identified, the levels of 29 decreased, whereas the levels of nine increased. We performed an enrichment analysis on the identified metabolites and found 35 candidates for metabolic processes affected by heat exposure...
November 20, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29152884/economic-impacts-of-avian-influenza-outbreaks-in-kerala-india
#6
G Govindaraj, R Sridevi, S N Nandakumar, R Vineet, P Rajeev, M K Binu, V Balamurugan, H Rahman
This study assessed the short-run impact to poultry farmers, duck hatcheries, control costs, compensation paid to stakeholders (transfer payments) and market reactions on own and substitute product prices and backwater tourism (boat operators) due to avian influenza (AI) outbreaks in Kuttanad region of Kerala, India, during 2014. The primary data from 91 poultry farms (duck farms, broiler chicken and backyard poultry), four hatcheries and 90 backwater boat owners were collected through pre-tested schedules...
November 19, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29152316/seroepidemiology-and-assessment-of-risk-factors-for-the-spread-of-avian-influenza-in-birds-in-two-nigerian-states
#7
Musa Ibrahim Waziri, Paul A Abdu, Lawal Sa'idu, Mohammed Bello
Despite modified stamping out eradication policy adopted in Nigeria, there was resurgence in 2015 of highly pathogenic avian influenza (HPAI) H5N1 with greater infectivity. A survey of the risk of spread of HPAI in two HPAI-infected and -uninfected Nigerian states were studied. A cross-sectional study to detect avian influenza (AI) H5 antibodies was conducted using haemagglutination inhibition (HI) test and enzyme-linked immunosorbent assay (ELISA). A total of 950 birds' sera were tested for AI H5 antibodies...
November 2017: Veterinary Medicine and Science
https://www.readbyqxmd.com/read/29152247/effects-of-different-protein-sources-on-fermentation-metabolites-and-nutrient-digestibility-of-brachycephalic-dogs
#8
Maria Isabel Gonzalez Urrego, Laura Fantucci de O Matheus, Karine de Melo Santos, Mariane Ceschin Ernandes, Mariana Monti, Danilo Ferreira de Souza, Júlio Cesar de Carvalho Balieiro, Lúcio Francelino Araújo, Cristiana F Ferreira Pontieri, Márcio Antonio Brunetto
Benefits to microbial fermentation in the colon and as a consequence less flatulence can be promoted for the health of adult dogs according to the amount and protein source. The present study evaluated different protein sources in dry food for brachycephalic dogs regarding microbial fermentation and nutrient digestibility. Four dry dog foods with similar protein content were formulated for adult maintenance: poultry meal (PM) diet; wheat gluten (WG) diet; PM + WG diet; and PM + WG + hydrolysed protein (HP) diet...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29151896/genotypic-diversity-antimicrobial-resistance-and-biofilm-forming-abilities-of-campylobacter-isolated-from-chicken-in-central-china
#9
Tengfei Zhang, Jun Dong, Yiluo Cheng, Qin Lu, Qingping Luo, Guoyuan Wen, Guoping Liu, Huabin Shao
Background: Campylobacter is considered to be the leading cause of human bacterial gastroenteritis, of which poultry is the main reservoir. Campylobacter contaminated chicken products are a major cause of human Campylobacter infection. In this study, the prevalence of Campylobacter in chicken in central China was investigated, and the genotypic diversity, antimicrobial resistance and biofilm of these isolates were characterized. Results: A total of 206 Campylobacter isolates, including 166 C...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/29151863/a-phylogenomic-analysis-of-marek-s-disease-virus-reveals-independent-paths-to-virulence-in-eurasia-and-north-america
#10
Jakob Trimpert, Nicole Groenke, Maria Jenckel, Shulin He, Dusan Kunec, Moriah L Szpara, Stephen J Spatz, Nikolaus Osterrieder, Dino P McMahon
Virulence determines the impact a pathogen has on the fitness of its host, yet current understanding of the evolutionary origins and causes of virulence of many pathogens is surprisingly incomplete. Here, we explore the evolution of Marek's disease virus (MDV), a herpesvirus commonly afflicting chickens and rarely other avian species. The history of MDV in the 20th century represents an important case study in the evolution of virulence. The severity of MDV infection in chickens has been rising steadily since the adoption of intensive farming techniques and vaccination programs in the 1950s and 1970s, respectively...
December 2017: Evolutionary Applications
https://www.readbyqxmd.com/read/29151586/h7n9-virulent-mutants-detected-in-chickens-in-china-pose-an-increased-threat-to-humans
#11
Jianzhong Shi, Guohua Deng, Huihui Kong, Chunyang Gu, Shujie Ma, Xin Yin, Xianying Zeng, Pengfei Cui, Yan Chen, Huanliang Yang, Xiaopeng Wan, Xiurong Wang, Liling Liu, Pucheng Chen, Yongping Jiang, Jinxiong Liu, Yuntao Guan, Yasuo Suzuki, Mei Li, Zhiyuan Qu, Lizheng Guan, Jinkai Zang, Wenli Gu, Shuyu Han, Yangming Song, Yuzhen Hu, Zeng Wang, Linlin Gu, Wenyu Yang, Libin Liang, Hongmei Bao, Guobin Tian, Yanbing Li, Chuanling Qiao, Li Jiang, Chengjun Li, Zhigao Bu, Hualan Chen
Certain low pathogenic avian influenza viruses can mutate to highly pathogenic viruses when they circulate in domestic poultry, at which point they can cause devastating poultry diseases and severe economic damage. The H7N9 influenza viruses that emerged in 2013 in China had caused severe human infections and deaths. However, these viruses were nonlethal in poultry. It is unknown whether the H7N9 viruses can acquire additional mutations during their circulation in nature and become lethal to poultry and more dangerous for humans...
October 24, 2017: Cell Research
https://www.readbyqxmd.com/read/29149886/antibiotic-susceptibility-profiles-of-mycoplasma-synoviae-strains-originating-from-central-and-eastern-europe
#12
Zsuzsa Kreizinger, Dénes Grózner, Kinga M Sulyok, Kristin Nilsson, Veronika Hrivnák, Dušan Benčina, Miklós Gyuranecz
BACKGROUND: Mycoplasma synoviae causes infectious synovitis and respiratory diseases in chickens and turkeys and may lead to egg shell apex abnormalities in chickens; hence possesses high economic impact on the poultry industry. Control of the disease consists of eradication, vaccination or medication. The aim of the present study was to determine the in vitro susceptibility to 14 different antibiotics and an antibiotic combination of M. synoviae strains originating from Hungary and other countries of Central and Eastern Europe...
November 17, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29149023/antibiotic-susceptibility-genetic-diversity-and-the-presence-of-toxin-producing-genes-in-campylobacter-isolates-from-poultry
#13
Jeeyeon Lee, Jiyeon Jeong, Heeyoung Lee, Jimyeong Ha, Sejeong Kim, Yukyung Choi, Hyemin Oh, Kunho Seo, Yohan Yoon, Soomin Lee
This study examined antibiotic susceptibility, genetic diversity, and characteristics of virulence genes in Campylobacter isolates from poultry. Chicken (n = 152) and duck (n = 154) samples were collected from 18 wet markets in Korea. Campylobacter spp. isolated from the carcasses were identified by PCR. The isolated colonies were analyzed for antibiotic susceptibility to chloramphenicol, amikacin, erythromycin, tetracycline, ciprofloxacin, nalidixic acid, and enrofloxacin. The isolates were also used to analyze genetic diversity using the DiversiLab(TM) system and were tested for the presence of cytolethal distending toxin (cdt) genes...
November 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29148396/multiple-reassorted-viruses-as-cause-of-highly-pathogenic-avian-influenza-a-h5n8-virus-epidemic-the-netherlands-2016
#14
Nancy Beerens, Rene Heutink, Saskia A Bergervoet, Frank Harders, Alex Bossers, Guus Koch
In 2016, an epidemic of highly pathogenic avian influenza A virus subtype H5N8 in the Netherlands caused mass deaths among wild birds, and several commercial poultry farms and captive bird holdings were affected. We performed complete genome sequencing to study the relationship between the wild bird and poultry viruses. Phylogenetic analysis showed that the viruses are related to H5 clade 2.3.4.4 viruses detected in Russia in May 2016 but contained novel polymerase basic 2 and nucleoprotein gene segments and 2 different variants of the polymerase acidic segment...
December 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29147662/effectiveness-of-a-lytic-phage-srg1-against-vancomycin-resistant-enterococcus-faecalis-in-compost-and-soil
#15
Sidra Rahmat Ullah, Saadia Andleeb, Taskeen Raza, Muhsin Jamal, Khalid Mehmood
Nosocomial infections caused by vancomycin-resistant Enterococcus have become a major problem. Bacteriophage therapy is proposed as a potential alternative therapy. Bacteriophages are viruses that infect bacteria and are ubiquitous in nature. Lytic bacteriophage was isolated from sewage water that infects VREF, the causative agent of endocarditis, bacteraemia, and urinary tract infections (UTIs). The phage produced clear plaques with unique clear morphology and well-defined boundaries. TEM results of phage revealed it to be 108 ± 0...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29146137/the-impact-of-additives-on-the-phosphorus-potassium-and-sodium-content-of-commonly-consumed-meat-poultry-and-fish-products-among-patients-with-chronic-kidney-disease
#16
Arti Sharma Parpia, Mary L'Abbé, Marc Goldstein, Joanne Arcand, Bernadene Magnuson, Pauline Darling
OBJECTIVE: Patients with chronic kidney disease (CKD) are advised to limit their dietary intake of phosphorus and potassium as hyperphosphatemia and hyperkalemia are both associated with an increased risk of mortality. There is uncertainty concerning the actual content of these minerals in the Canadian food supply, as phosphorus and potassium are increasingly being used as food additives. This study aimed to determine the impact of food additives on the chemically analyzed content of phosphorus, potassium, sodium, and protein in commonly consumed meat, poultry, and fish products (MPFs)...
November 14, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29145799/gangrenous-dermatitis-in-chickens-and-turkeys
#17
Carlos D Gornatti-Churria, Manuela Crispo, H L Shivaprasad, Francisco A Uzal
Gangrenous dermatitis (GD) is a disease of chickens and turkeys that causes severe economic losses in the poultry industry worldwide. Clostridium septicum, Clostridium perfringens type A, and occasionally Clostridium sordellii are considered the main causes of GD, although Staphylococcus aureus and other aerobic bacteria may also be involved in some cases of the disease. GD has become one of the most significant diseases of commercial turkeys in the United States. Several infectious and/or environmental immunosuppressive factors can predispose to GD...
November 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29145463/the-chicken-or-the-egg-exploring-bi-directional-associations-between-newcastle-disease-vaccination-and-village-chicken-flock-size-in-rural-tanzania
#18
Julia de Bruyn, Peter C Thomson, Brigitte Bagnol, Wende Maulaga, Elpidius Rukambile, Robyn G Alders
Newcastle disease (ND) is a viral disease of poultry with global importance, responsible for the loss of a potential source of household nutrition and economic livelihood in many low-income food-deficit countries. Periodic outbreaks of this endemic disease result in high mortality amongst free-ranging chicken flocks and may serve as a disincentive for rural households to invest time or resources in poultry-keeping. Sustainable ND control can be achieved through vaccination using a thermotolerant vaccine administered via eyedrop by trained "community vaccinators"...
2017: PloS One
https://www.readbyqxmd.com/read/29144022/collagen-a-review-on-its-sources-and-potential-cosmetic-applications
#19
REVIEW
María Isabela Avila Rodríguez, Laura G Rodríguez Barroso, Mirna Lorena Sánchez
Collagen is a fibrillar protein that conforms the conjunctive and connective tissues in the human body, essentially skin, joints, and bones. This molecule is one of the most abundant in many of the living organisms due to its connective role in biological structures. Due to its abundance, strength and its directly proportional relation with skin aging, collagen has gained great interest in the cosmetic industry. It has been established that the collagen fibers are damaged with the pass of time, losing thickness and strength which has been strongly related with skin aging phenomena [Colágeno para todo...
November 16, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29141334/-human-exposure-to-live-poultry-among-residents-during-the-second-wave-of-avian-influenza-a-h7n9-epidemic-in-beijing-2013-2014
#20
S S Wu, P Yang, Q Y Wang, H Y Zhang, Y H Chu, H J Li, W Y Hua, Y Q Tang, C Li
Objective: To investigate human exposure to live poultry (poultry feeding and purchasing) in the residents in Beijing and related factors during the second wave of avian influenza A(H7N9) epidemic during 2013-2014, and provide scientific evidence for avian influenza prevention and control. Methods: A total of 7 366 adults aged ≥18 years were selected through multi-stage stratified sampling in Beijing for a questionnaire survey. Logistic regression model was used to analyze the influence factors of human exposure to live poultry...
November 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
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