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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.
Vetworks invites to their VIV MEA 1-Day Seminar: Tracing The Path to Antibiotic Free Poultry Production in Middle East Conditions. The event will be held on February 4th, as part of their Poultry Technical Training Series in 2018.
Scope of the seminar: Alternative options to using antibiotics for disease prevention in animals include improving hygiene, better use of vaccination, and changes in animal feeding and husbandry practices.
Language: English / Location: Abu Dhabi...
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Introduction Salmonella enterica serovar Enteritidis (Salmonella Enteritidis) accounts for nearly 20% of laboratory-confirmed illnesses of salmonellosis in recent years (CDC, 2014). Consumption of shell eggs and egg products is associated with risk of infection from Salmonella Enteritidis in humans (CDC, 2003; Cowden et al., 1989; Elson et al., 2005). A large multistate outbreak of Salmonella Enteritidis led to a recall...
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Drug Incompatibility: Definition: Drug Incompatibility refers to interactions between two or more substances which lead to changes in chemical, physical, therapeutic properties of the pharmaceutical dosage form. A drug interaction is a situation in which a substance (usually another drug) affects the activity of a drug when both...
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Introduction A range of studies have investigated the structure of the microbiome in the gut of broiler chickens. Comparison across studies has proven difficult because of the variety of different methods used; e.g. culture based studies [1], G+C profiling analysis [2], quantitative PCR [3], and 16S rRNA based studies. The 16S-based methods have used a number of different approaches including terminal restriction fragment length polymorphism analysis [4], temporal temperature...
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FIGAP 2026: The Scientific And Technological Exhibition Of The Livestock Industry
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Asian poultry production systems rapidly adopt and often adapt new health protection strategies but maximum biological performance, long-term sustainability and cost are only some of the aims of producers. It is these adaptations are the focus of this paper. New strategies are often added to previous strategies and very rarely replace or displace previous strategies and thus usually increase cost of production often with no demonstrable improvement in health status. Interference between...
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Patti J. Miller, Veterinary Medical Officer at the Southeast Poultry Research Laboratory (USDA), explained the importance of biosecurity to go along with a vaccination program, during IPPE 2017 in Atlanta, USA....
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Introduction In June 2012, a highly pathogenic avian influenza (HPAI) virus, subtype H7N3, was identified as the cause of a severe disease outbreak in commercial layer farms in the Western State of Jalisco. Approximately 22.4 million birds died due to the infection or to the preventive stamping out of neighboring farms. 6 On July 26, 2012, a national vaccination...
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Patti J. Miller, Veterinary Medical Officer at the Southeast Poultry Research Laboratory (USDA), gave a presentation on her research on killed and live NDV vaccines against virulent NDV strains in Atlanta, USA....
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How Does Coccidiosis Affect Poultry Farming, and What Strategies Can Mitigate Its Impact?
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1. Introduction Since 1990's, there has been a significant increase in the number of highly pathogenic (HP) avian influenza (AI) outbreaks and also in the number of birds involved in those outbreaks [1,2]. The most notable of these recent HPAI outbreaks is a series of H5N1 outbreaks started in China and Hong Kong since 1996, which then spread to other parts of the world including South-East Asia, the Middle East, Europe...
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Patti J. Miller, Veterinary Medical Officer at the Southeast Poultry Research Laboratory (USDA), discussed her research on killed and live NDV vaccines against virulent NDV strains, during IPPE 2017 in Atlanta, USA. ...
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Travis Schaal talks about the importance of biosecurity to prevent avian influenza outbreaks
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Introduction In industrial poultry production, designing a preventive program for controlling coccidiosis is one of the most important decisions, in order to safeguard or improve zootechnical and financial results. Live coccidiosis vaccines are becoming increasingly popular, as they often provide a solution when the in-feed anticoccidials become inefficient, in fact they are able to promote the restoration of the...
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Background Avian Influenza (AI) virus belongs to the Orthomyxoviridae family, Influenzavirus A genus. This virus possesses eight segments of single-stranded RNA genome. Two of these segments encode for two important membrane glycoproteins, hemagglutinin (HA) and neuraminidase (NA) [1], that play a key role during cellular infection. These two proteins are used for virus subtype...
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WHY VACCINATE? Vaccination is an effective means to prevent and/or reduce the adverse effects of specific diseases in poultry. Poultry refers to birds that people keep for their use, and generally includes chicken, turkey, duck, goose, quail, pheasant, pigeon, guinea fowl, pea fowl, ostrich, emu and rhea. Disease-causing organisms can be classified, smallest to largest, as viruses, mycoplasma, bacteria, fungi, protozoa, and parasites....
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I would like to open this topic to every fellow to comment and suggest improvement in evaluating economic loss inflicted by different HPAI types. Pakistan is one of the country adapting strain specific vaccination against Influenza viruses in chicken production operations. Moreover role of migrating birds is also due to be discussed in detail. I am here to share experience of Pakistan. I would request to open a specific portal for influenza to share the news in...
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Agriculture (including livestock, fisheries and agro-forestry) is the main economic sector in the West African region, representing around 40% of its GDP and employing around 80% of its total population. The Livestock industry plays a major role in this sector, as animal food security is considered a major player in the agricultural growth of the sub-region. The vulnerabilities of this industry has been exposed over the years as there has been direct threats, which has affected the...
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Introduction With the growth of the poultry industry, avian salmonellosis became a limiting factor in poultry farms, in which can cause significant economic losses in all stages of production. Avian salmonellosis is the term that designates a large group of acute or chronic bird diseases caused by one or more bacteria of the genus Salmonella (Gast, 1997). These bacteria are...
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Vaccination for certain diseases is an important component of the health management program for commercial meat turkey production. Because of logistical challenges almost all routine vaccination of meat turkey flocks is administered through the drinking water. Examples of diseases for which vaccination is performed include Newcastle disease, bordetellosis (turkey coryza), fowl cholera, and hemorrhagic enteritis. Figure...
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Introduction Immunosuppression in poultry causes widespread and significant economic losses, by decreasing vaccine effectiveness, causing excessive post-vaccine reactions, and allowing secondary infections like E. coli to establish, requiring antibiotic treatment. Dexter M. Abrigo and Stephane Lemiere* explain how to reduce immunosuppression to build a good and solid immune...
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Magni-Phi (Phibro Animal Health) is a triterpenoid saponin feed additive that has been shown to exert anticoccidial effects in broilers. A series of four floor pen studies was carried out to evaluate the efficacy and performance responses of Magni-Phi (MP) when used in combination with a standard coccidiosis vaccination program. Trials 1 and 2 were designed to assess the effects of MP (0 and 250 ppm) in birds receiving CocciVac at hatching. Trial 3 was designed to determine the ideal...
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Hello, is there any new strain of chicken infectious anaemia virus affecting adult birds (laying birds)?
Thanks ...
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