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Poultry vaccines
Disease prevention by vaccination is an integral part of flock health management protocols. Active immunization using live vaccines is the current industry standard. Routinely used vaccines in chickens include MDV, NDV, IBV, and IBDV, and in turkeys NDV and HEV. Newer vaccines, including molecular recombinants in which genes of immunogenic proteins from infectious agents are inserted into a live viral vector, are also being examined for commercial use. Efforts are under way to enhance vaccine efficacy by the use of adjuvants, particularly cytokines. The vaccine delivery systems include in ovo injection, aerosol, spray, drinking water, eye drop, and wing web injection. The in ovo vaccination procedure is relatively new and at the present time it is used primarily to vaccinate broiler chickens against MDV. Birds respond to vaccines by developing humoral and cellular immune responses. There are two main types of vaccine available for poultry: live or killed.
Dino Garcez (DSM), Elise Myers (MSD), Jesus Rubio (Hipra), Tobias Fernandes Filho (Boehringer-Ingelheim), Deyse Galle (Elanco), Giankleber Diniz (Ceva) and Eduardo Muniz (Zoetis) discussed solutions and initiatives taken in the poultry industry, during the 1st PoultryUniverse Coccidiosis Congress in Curitiba, Brazil....
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Christi Swaggerty (USDA) talked about Eimeria infection, vaccines and nutrition, among other aspects, during the 1st PoultryUniverse Coccidiosis Congress in Curitiba, Brazil....
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1- What is the reason behind a short persistent immunity? I, sometimes, face a short period of immunity following vaccination by NDV clone 30 and Ma 5 vaccine in parent breeder during laying. What do you advise me to review?
2- What causes the interference of mild field challenge during vaccination? ...
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Johan Van Erum (Galluvet) discussed live Coccidiosis vaccination, during the 1st PoultryUniverse Coccidiosis Congress in Curitiba, Brazil....
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Udi Ashash (Director of Global Technical Services, Phibro Vaccines) explained the effect of migratory birds, and gave recommendations on eradication and vaccination, during the Avian Influenza International Seminar 2017 in Buenos Aires, Argentina....
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Damer Blake (Royal Veterinary College) talked about the benefit of additional antigens in the development of vaccines using Eimeria as a vector, during the 1st PoultryUniverse Coccidiosis Congress in Curitiba, Brazil....
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Huayu Company and Hy-Line International: 20 Years of Partnership Driving China’s Egg Industry
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I would be grateful if you tell me 1- The duration of immunity that NDV and IB live vaccine given in parent breeder 2-Sometimes I encounter by low NDV and IB persistence of immunity. What are the reasons? I would be thankful if there is a reference 3-I vaccinated my flock with Ma5 and clone 3 when I conducted Elisa to check the success of vaccination I found the titre of NDV is high. What is the reason behind that?
Thanks and regards. ...
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Abstract
The devastating outbreaks of Ranikhet disease from time to time and consequent loses incurred by broiler industry made its way to be included into the list A diseases of OIE long back. A cost-effective preventive measure to avoid this calamity depends on the affordability of the marginal farmers rather than the intensive poultry production units, therefore preparation of cheaper vaccine with sufficient protective efficiency is the need of the hour. It has...
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FIGAP 2026: The Scientific And Technological Exhibition Of The Livestock Industry
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Fiona Tomley (Royal Veterinary College) talked about several aspects regarding vaccination, including evaluation of genotypes and antigens, during the 1st PoultryUniverse Coccidiosis Congress in Curitiba, Brazil....
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Ricardo Rauber (BRF, Brazil) talked about the disease's control programs in the field, during the 1st PoultryUniverse Coccidiosis Congress in Curitiba, Brazil....
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Maximizing Efficiency with DL-Methionine: The 65% Bio-Efficacy Advantage
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Can the Mg ts-11 vaccine cross-protect against mycoplasma synoviae? ...
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Doug Korver (University of Alberta) spoke on poultry diets, performance and immunity, during the 1st PoultryUniverse Coccidiosis Congress in Curitiba, Brazil....
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What are the reasons that render a flock response to a combination of Ma5 plus clone 30 is 1- Good for ND --Elisa : Mean titre , CV %,Minim titre , Max titre all are good 2-IB --Elisa Mean titre, CV %, Maxim titre all are good but the minim titre did not equal to half of the mean titre. What is the corrective action in this case? ...
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Ahmed Elkady, Marketing Director at ME VAC, spoke on the variety of vaccines that are being produced for different species, during VIV MEA 2018 in Abu Dhabi, United Arab Emirates....
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Mycoplasmas are bacteria characteristic for their lack of a cell wall, small size, and small genome (1). These pathogens are evolutionarily related to the low-%GC Gram-positive Clostridiales (2), and they are highly host specific and tend to inhabit mucosal surfaces within their host (1). Within the poultry industry, the ability of Mycoplasma gallisepticum to infect the respiratory and reproductive tracts of several avian species has made it a pathogen of great...
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This broiler chickens “specialized” course is an overview of important infectious and non-infectious diseases at different stages of breeder and broiler production. The objective of the WVEPAH education program is to offer a highly specialized training on all specific aspects of broilers (meat chickens) health; pathology, epidemiology,...
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Brian Jordan (University of Georgia) talked about the Ark99 strain and what was found out during the investigation, regarding mutations in the genome, during IPPE 2018 in Atlanta, USA....
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Findings Avian influenza virus (AIV) is a member of the Orthomyxoviridae family, Influenzavirus A genus . AIV is characterized by its ability to undergo constant antigenic changes [1]. AIV envelope contains two major glycoproteins, hemagglutinin (HA) and neuraminidase (NA) [2]. The HA/NA proteins play a key role during cellular infection. Different HA/NA combinations allow AIV subtype discrimination. Depending on the damage caused to avian species, AIVs are categorized...
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Introduction: The purpose of this study was to demonstrate the presence of virus disease of infectious Laryngotracheitis (ILT) in Algeria in laying hen farms; through the demonstration of seroconversion signing a recent viral passage and also a comparative study cost / benefit of vaccination against this disease. Up ‘til 2011, no study was conducted to highlight the presence of the...
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1 Introduction Characterized after its human orthologue (Herpes Simplex Virus; HSV a DNA containing virus), Marek’s disease virus (MDV), or Gallid herpesvirus 2 (GaHV-2), the etiologic agent for Marek’s disease (MD) is an alpha-herpes virus that targets avian species (Gallus gallus domesticus) where it establishes chronic infection. Notably recognized as a multifaceted disease, MD is characterized based on immunosuppression, neurological disorders and neoplastic...
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