نتایج جستجو برای: background colibacillosis in poultry

تعداد نتایج: 17000556  

2018
Wei Cheng Xiaoxiao Wang Ye Shen Zhao Yu Shelan Liu Jian Cai Enfu Chen

BACKGROUND The sudden increase in the number of human cases infected with avian influenza A(H7N9) virus after September 2016 raised global concern. OBJECTIVES To assess the changes in epidemiological characteristics of H7N9 cases since the massive closure of live poultry markets (LPMs) in the main urban areas in Zhejiang province. METHODS We used descriptive statistics to compare epidemiolo...

2018
Enfu Chen Maggie H Wang Fan He Riyang Sun Wei Cheng Benny C Y Zee Steven Y F Lau Xiaoxiao Wang Ka Chun Chong

BACKGROUND Although investigations have shown that closing live poultry markets (LPMs) is highly effective in controlling human influenza A (H7N9) infections, many of the urban LPMs were shut down, but rural LPMs remained open. This study aimed to compare the proportional changes between urban and rural infections in the Zhejiang province from 2013 to 2017 by analyzing the exposure histories of...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1390

as the canon is shaped by white male standards rewriting the canonical works of literature is one of the ways through which postcolonial writers subvert the authority of the masters. writing in the language of the masters the colonized writers use the very suppressive tool in the hands of the masters i.e. their language to question the validity of their norms. regarded by most critics to be the...

Journal: :Revue scientifique et technique 1997
E K Barbour S K Hamadeh C Hilan M Kallas A Eid W Sakr

From 1992 to mid-1996, a national survey of poultry diseases in Lebanon was conducted. This surveillance included meat breeder, layer breeder, commercial layer and chicken broiler flocks. The history, signs, lesions and laboratory tests of poultry were used in the diagnosis of prevalent poultry diseases. Culture techniques were used to screen for bacterial diseases; serological techniques and, ...

Journal: :Asian journal of environment & ecology 2023

Aims: This research aims to isolate and characterize from dairy products, in particular yogurts, cultivated Lactobacillus strains with potential for use as probiotics poultry farming.
 Study Design: consists of four parts, an introduction literature review, a description the materials methods used, finally results obtained their discussion.
 Place Duration Study: Central Veterinary La...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1393

this thesis attempts to measure learning styles, self efficacy and intrinsic motivation as predictors of iranian ielts reading comprehension. in order to address this issue, a quantitative study was conducted on some randomly selected intact students at ferdowsi university. these two groups were assigned as they were undergraduate (ba=91) and graduate (ma =74) students; they were all aged betwe...

Journal: :Journal of the Hellenic Veterinary Medical Society 2023

Escherichia coli (E. coli) is a zoonotic bacterial pathogen commonly found in human, birds and animals. The widespread use of broad-spectrum beta-lactams for poultry treatment, has resulted the production extended spectrum β-lactamases (ESBLs) E. coli. In this study, we analyzed antimicrobial resistance pattern isolates from broiler chickens ducks with clinical colibacillosis, investigated pres...

Journal: :Avian diseases 2002
Timothy J Johnson Catherine W Giddings Shelley M Horne Penelope S Gibbs Richard E Wooley Jerod Skyberg Pam Olah Ronda Kercher Julie S Sherwood Steven L Foley Lisa K Nolan

Avian colibacillosis is a costly disease for the poultry industry. The mechanisms of virulence employed by the etiologic agent of this disease remain ill defined. However, accumulated evidence suggests that complement resistance and the presence of the increased serum survival gene (iss) in an avian Escherichia coli isolate may be indicative of its ability to cause disease. This association of ...

2011
Victor Gonçalves Maturana Fernanda de Pace Camila Carlos Mathias Mistretta Pires Tatiana Amabile de Campos Gerson Nakazato Eliana Guedes Stheling Catherine M Logue Lisa K Nolan Wanderley Dias da Silveira

Avian pathogenic Escherichia coli (APEC) strains cause different types of systemic extraintestinal infections in poultry, collectively termed colibacillosis, which can cause significant economic losses in the poultry industry. To date, there have been no descriptions of genes or characteristics that allow for the classification of avian strains pathotypes responsible for causing specific diseas...

2014
Jean-Rémy Sadeyen Pete Kaiser Mark P Stevens Francis Dziva

Avian pathogenic Escherichia coli (APEC) cause severe respiratory and systemic disease in poultry yet the nature and consequences of host immune responses to infection are poorly understood. Here, we describe a turkey sub-acute respiratory challenge model and cytokine, cell-mediated and humoral responses associated with protection against homologous re-challenge. Intra-airsac inoculation of tur...

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