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Identification of a novel strain of influenza A (H9N2) virus in chicken

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Virologica Sinica 2015年第4期30卷 309-312页

作者： Ning Wang Zheng Ruan Yun Wan Bo Wang Si-Hua Zhang Xing-Yi Ge Center for Emerging Infectious Diseases CAS Key Laboratory of Special Pathogens and Biosafety Wuhan Institute of VirologyChinese Academy of Sciences Wuhan Center For Severe Animal Disease Control and Prevention

Dear Editor,Avian Influenza virus(AIV)H9N2 subtype viruses circulate widely in domestic fowl,and usually cause mild clinical signs in poultry(Li et al.,2005).Occasionally,avian H9N2 can infect humans and cause mild clinical symptoms(Peiris et al.,1999;Lin et al.,2000).Genetic analysis indicates that the H9N2 genotype viruses exist in major poultry species(such as duck and chicken)and in minor poultry species(such as quail,partridge,chukar,pheasant,and guinea fowl)(Guan et al.,2000;Li et al.,2005).Meanwhile,frequent reassortment events

关键词： chicken poultry guinea avian genotype Influenza su

Resource utilization of agricultural solid waste

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Journal of Integrative Agriculture 2021年第5期20卷 1119-1120页

作者： LI Zhao-jun Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing 100081P.R.China

China, one of the world's largest agricultural countries, inevitably generates a massive amount of agricultural solid waste(ASW) every year. As it is estimated, China annually produced 3.8 billion, 900 million and 200... 详细信息

关键词： annually agricultural poultry

Within-host model of respiratory virus shedding and antibody response to H9N2 avian influenza virus vaccination and infection in chickens

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Infectious Disease Modelling 2021年第1期6卷 490-502页

作者： Xiao-Ting Xie Alexander Yitbarek Jake Astill Shirene Singh Salah Uddin Khan Shayan Sharif Zvonimir Poljak Amy L.Greer Department of Population Medicine University of GuelphONCanada Department of Pathobiology University of GuelphONCanada School of Veterinary Medicine University of the West IndiesSt.AugustineTrinidad and Tobago

Avian influenza virus(AIV)H9N2 subtype is an infectious pathogen that can affect both the respiratory and gastrointestinal systems in chickens and continues to have an important economic impact on the poultry *** the host innate immune response provides control of virus replication in early infection,the adaptive immune response aids to clear infections and prevent future *** virus-innate immune response pathways can improve our understanding of early infection dynamics and help to guide our understanding of virus shedding dynamics that could lead to reduced transmission between *** some countries use vaccines for the prevention of H9N2 AIV in poultry,the virus continues to be endemic in regions of Eurasia and Africa,indicating a need for improved vaccine efficacy or vaccination *** we explored how three type-I interferon(IFN)pathways affect respiratory virus shedding patterns in infected chickens using a within-host ***,prime and boost vaccination strategies for a candidate H9N2 AIV vaccine are assessed for the ability to elicit seroprotective antibody *** model demonstrates that inclusion of virus sensitivity to intracellular type-I IFN pathways results in a shedding pattern most consistent with virus titres observed in infected chickens,and the inclusion of a cellular latent period does not improve model ***,early administration of a booster dose two weeks after the initial vaccine is administered results in seroprotective titres for the greatest length of time for both broilers and *** results demonstrate that type-I IFN intracellular mechanisms are required in a model of respiratory virus shedding in H9N2 AIV infected chickens,and also highlights the need for improved vaccination strategies for laying hens.

关键词： Avian influenza Disease modelling Innate immunity Adaptive immunity poultry

Avian Influenza and Newcastle Disease: A Field and Laboratory Manual 1

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2009年

作者： Illaria Capua

来源：畅想之星图书光盘版（南... 评论

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美文秀

英语角 2022年第7期 34-35页

作者：徐婉莹上海市上海外国语大学附属外国语小学

One of Chinese Traditional Festivals Before I start my talk,I'd like to tell you a tale about the origin of the Spring *** upon a time,there was a monster called"Nian"who lived in the deep *** Chinese New Year’s Eve,... 详细信息

关键词： Spring poultry origin

CHINA MEETS NEW MEAT Is the PRC Ready for a Plant-Based Future?

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城市漫步（上海版、英文） 2020年第5期 40-49页

作者： Matthew Bossons 不详

For some,the idea that China could one day move away from the consumption of beef,pork,poultry and other animal meats may seem like a pipe ***'s good reason for this,according to statistics from the UN Food and Agnculture Organization and the Organization for Economic Co operation and Development,China consumed nearly 50%of the world's pork in *** 2016,the average Chinese person ate 63 kilograms of meat per year.

关键词： poultry Plant PRC

Nutrient Removal Structures Using Locally-Sourced Iron and Aluminum By-Products Reduce Nutrient Runoff from Broiler Production Facilities

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Journal of Environmental Protection 2020年第4期11卷 332-343页

作者： Sheri L. Herron Andrew N. Sharpley Kristofor R. Brye James M. Burke Ecosustain LLC Dripping Springs TX USA Department of Crop Soil and Environmental Sciences University of Arkansas Fayetteville AR USA

A common issue with filters designed to remove nutrients from runoff is their reduced effectiveness in high-flow conditions. To overcome this challenge, it was determined that nutrient removal from broiler-house fan dust could be more effective if nutrient removal was conducted at the nutrient source. The objective of this study was to evaluate the effectiveness of containment trays (CTs) holding locally sourced by-products installed adjacent to broiler house fans at the University of Arkansas Savoy broiler production facility to capture nutrients released from dust during rainfall over four years (2013 to 2017). By-products used were locally sourced, iron-based red mud (RM) generated during the manufacture of steel belts for tires and alum-based drinking water treatment residual (WTR), where both materials have large phosphorus (P) sorption capacities. Four-year mean annual concentrations of dissolved P of through-flow from RM CTs were consistently below 0.7 mg·L-1 and below 1.6 mg·L-1 for WTR CT through-flow. This equated to an average 11- and 4-fold decrease for RM and WTR, relative to concentrations in runoff from same-sized plots adjacent to sidewall fans, demonstrating their potential to trap P at the source and decrease P runoff to nearby flowing waters. While there was no significant decline in RM or WTR effective-ness over the four-year study, further work needs to be conducted to determine the lifespan of CTs. Use of RM and WTR in CTs at poultry broiler production facilities, along with their subsequent land application, has the potential to reduce the amount of by-product materials that are currently landfilled.

关键词： Nitrogen Runoff Phosphorus Runoff poultry Production Red Mud Water Quality Water Treatment Residual

Influence of Different Nitrogen Sources on the Growth and Yield of Three Varieties of Okra (<i>Abelmoschus esculentus</i>) in Kabba, Kogi State, Nigeria

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Agricultural Sciences 2015年第10期6卷 1141-1147页

作者： Sinmidele K. Ogundare Frank D. Owa Omolola O. Etukudo Naomi K. Ibitoye-Ayeni College of Agriculture Division of Agricultural Colleges Ahmadu Bello University Zaria Nigeria Department of Integrated Science Federal College of Education Okene Nigeria

Experiments were carried out at the Research Site of Horticultural Section, Kabba College of Agriculture to investigate the influence of different nitrogen sources on the growth and yield of three varieties of okra. The experiment was laid out in split block design with varieties as main plots (Lady Finger “LF”, LD88 and Okele (local cultivar)) and different nitrogen sources as sub plots (Urea (108.7 kgN/ha), poultry manure (PM) (3.01 t/ha = 108.7 kgN/ha) and cow dung (CWD) (3.83 t/ha = 108.7 kgN/ha). The treatment combinations were as follows LD88 + Urea, LD88 + PM, LD88 + CWD, LF + Urea, LF + PM and LF + CWD, Okele + Urea (108.7 kg/ha), Okele + PM and Okele + CWD. Growth parameters determined were plant height (cm), leafarea (cm2), number of leaves produced, stem girth (cm), internode length (cm) and days to 50% flowering and podding. Flower characters taken were number of flowers produced per plant, number of flowers aborted per plant, and number of pods produced per plant. Yield characters determined were individual pod weight (g), pod length (cm), pod diameter (cm) and pod yield (t/ha). The data collected were subjected to analysis of variance (ANOVA) and means compared using the least significant difference (LSD) at a probability level of 5%. Urea application and poultry manure had significantly different effects compared with cow dung treated plots for the parameters of growth and yield. Highest mean value was observed with urea application. This was followed by poultry manure application. The cultivar Lady’s finger performed better according to the data for number of pods and fresh pod weight. This was followed by the LD88 cultivars. Okra grew taller and had bigger stem girth, greater number of leaves, larger leaf area and higher number of pods and fresh pod weight with urea application. Cultivar Lady’s finger performed better than the other cultivars in most measured parameters. It is therefore recommended that lady finger should be grown by farmers in the

关键词： Cultivar Nitrogen poultry Manure Cow Dung Pod Growth Yield

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CHINA MEETS NEW MEAT

城市漫步（GBA版） 2020年第5期 40-49页

For some,rhe idea that China could one day move away from the consumption of beef,pork,poultry find other nnimnl meals mny seem like n pipe ***'s good reason for this,according to statistics from the UN Food and Agriculture Orjf II Hill limn him'the Orjiiiianlmn lot Ciijiii me Cd-ufNwiiliiMi mu'Development,China consumed nearly 50%of the world's pork in *** 2016,the average Chinese person ate 63 kilograms of meat per *** lagging behind over 10 countries,including the United Stales.

关键词： poultry spite dream