نتایج جستجو برای: newcastle disease vaccine

تعداد نتایج: 1575648  

2011
Adel Feizi Mehrdad Nazeri

Newcastle disease is an important viral disease, that its occurrence and virulence was increase in Iran in recent years. Therefore, in order to control the disease incidence effective vaccination program has been important. The objective of this study was comparison 3 types of vaccines include La Sota, Avinew, and Clone30 on broiler chickens. In this study 360 day old, Ross broiler chicks divid...

Newcastle disease (ND) causes severe economic losses in poultry production. Despite the intensive vaccination regimes of NDV in Egypt, many outbreaks are being reported. The present study focused on the preparation and evaluation of inactivated velogenic Newcastle disease virus vaccine (genotype VII) isolated from Egyptian broiler chicken during 2015-2016. Fifty-five tissue samples including tr...

2001
P. B. Spradbrow

Robust vaccines are required to protect village chickens against Newcastle disease. Thermostable vaccines derived from avirulent Australian strains of Newcastle disease virus (strains V4 and I-2) have proved successful for this purpose. These vaccines have been developed through ACIAR projects and have been adopted by other international aid agencies. It is now possible to offer integrated work...

Journal: :iranian journal of virology 0
hossein hosseini p.o.box: 31486-35731 amir gholami faculty of veterinary medicine, karaj branch, islamic azad university, karaj, iran arash ghalyanchi langeroudi p.o. box: 14155-6453

abstract background and aims: newcastle disease (nd) is a highly contagious disease that affects many species of birds and causes significant economic losses to the poultry industry worldwide and the pathogenicity of newcastle disease virus (ndv) strains varies with different virulence. we aim to detect lentogenic (low virulence) nd virus (nd/ir 2010) using sentinel birds and molecular detectio...

Abstract Background and Aims: Newcastle disease (ND) is a highly contagious disease that affects many species of birds and causes significant economic losses to the poultry industry worldwide and the pathogenicity of Newcastle disease virus (NDV) strains varies with different virulence. We aim to detect lentogenic (low virulence) ND virus (ND/IR 2010) using sentinel birds and molecular det...

2016
Stivalis Cardenas-Garcia Robert P. Dunwoody Valerie Marcano Diego G. Diel Robert J. Williams Robert M. Gogal Corrie C. Brown Patti J. Miller Claudio L. Afonso

More effective vaccines are needed to control avian diseases. The use of chicken interferon gamma (chIFNγ) during vaccination is a potentially important but controversial approach that may improve the immune response to antigens. In the present study, three different systems to co-deliver chIFNγ with Newcastle disease virus (NDV) antigens were evaluated for their ability to enhance the avian im...

BACKGROUND: It is important to understand the efficacy of immunoregulatory materials, herbal remedies or probiotics, in different parts of immune system following vaccination with different tropism. OBJECTIVES: Aim of this study was to evaluate the effect of Echinacea purpurea and a probiotic (protexin) on systemic and mucosal immune response in turkey. METHODS: A total of 288 1-day-old male tu...

Journal: :iranian journal of veterinary medicine 0
mohammad hasanzadeh department of avian diseases, faculty of veterinary medicine, university of tehran, tehran, iran tohid tolouei avian diseases, faculty of veterinary medicine, university of tehran, tehran, iran gholamreza nikbakht department of microbiology and immunology, faculty of veterinary medicine, university of tehran, tehran, iran. hassan alkaragoly department of microbiology and immunology, faculty of veterinary medicine, university of tehran, tehran, iran arya rezaei far department of poultry science, faculty of veterinary medicine, urmia islamic azad university, urmia, iran. hassan ghahri department of poultry science, faculty of veterinary medicine, urmia islamic azad university, urmia, iran.

background: it is important to understand the efficacy of immunoregulatory materials, herbal remedies or probiotics, in different parts of immune system following vaccination with different tropism. objectives: aim of this study was to evaluate the effect of echinacea purpurea and a probiotic (protexin) on systemic and mucosal immune response in turkey. methods: a total of 288 1-day-old male tu...

Background: Major histocompatibility complex (MHC) is one of the best characterized genetic regions controlling immune responses against vaccines. Identifying the association between MHC haplotypes and improved immune responses would be useful in genetic breeding strategies in animals. OBJECTIVES: MHC class II B genetic diversity and its association with humoral immune responses against Newcast...

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