Download or read book Challenge Studies in Chickens to Evaluate the Efficacy of Commercial Newcastle Disease Vaccines Against the Strains of Newcastle Disease Virus Prevalent in South Africa Since 2002 written by Dauda Garba Bwala and published by . This book was released on 2009 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 2002, the South African poultry industry has experienced outbreaks of Newcastle disease (ND) caused by a newly introduced virus (NDV) strain belonging to lineage 5d/VIId ("goose paramyxovirus" - GPMV). Control of the disease has proved difficult with commercially available vaccines appearing ineffective. In the first of two studies, broilers chicks were vaccinated with VG-GA vaccine (lineage II), then challenged with both GPMV and a "classic" challenge virus (RCV) of lineage 3d/VIII to compare the efficacy of the vaccine against both strains. In the second study, commercial and SPF hens in lay were vaccinated with La Sota vaccine and challenged with GPMV isolate, and immunohistochemistry staining used to determine the distribution pattern of viral antigen in the oviduct of the hens. Results from the second study showed no clear difference in the protection of the oviduct from challenge with GPMV by either the cloacal and ocular routes of vaccination. Vaccinated birds were fully protected (100%) against challenge by La Sota vaccine, but not against infection and replication of the virus, as birds showed varying degrees of macropathology with numerous stained viral antigens in the oviducts demonstrated by immunohistochemistry. The susceptibility and colonisation of the oviduct of laying hens by both the lentogenic La Sota and the virulent NDV isolates was confirmed, with the uterus being more susceptible than magnum and isthmus. Necrosis and apoptosis of cells of the oviduct were not detected but cellular infiltration, gland dilatation and interstitial oedema were observed.
Download or read book Avian Influenza Virus written by Erica Spackman and published by Springer Science & Business Media. This book was released on 2008-02-28 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the growing global fear of a major pandemic, avian influenza (AI) virus research has greatly increased in importance. In Avian Influenza Virus, an expert team of researchers and diagnosticians examine the fundamental, yet essential, virological methods for AI virus research and diagnostics as well as some of the newest molecular procedures currently used for basic and applied research. They present exciting, cutting-edge new methods that focus both on studying the virus itself and on work with avian hosts, an area greatly lacking in research.
Download or read book Newcastle Disease Vaccines written by William Hendry Allan and published by Nicholson. This book was released on 1978 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diseases of Poultry written by and published by John Wiley & Sons. This book was released on 2019-11-19 with total page 1488 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most complete and definitive reference to all aspects of poultry diseases, Diseases of Poultry, Fourteenth Edition has been fully revised and updated to offer a comprehensive survey of current knowledge. Updates the definitive reference of poultry health and disease Provides more clinically relevant information on management of specific diseases, contributed by clinical poultry veterinarians Offers information on disease control in organic and antibiotic-free production Presents more concise, streamlined chapters for ease of use Incorporates advances in the field, from new diagnostic tools and information to changes brought about by the increasing globalization and the re-emergence of zoonotic pathogens
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1999 with total page 1872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Newcastle Disease in Village Chickens written by P. H. Spradbrow and published by Hyperion Books. This book was released on 1992 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Technology Review written by D. J. Alexander and published by Food & Agriculture Org.. This book was released on 2004 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Previously released in June 2004 and temporarily withdrawn. Now available!) Keeping poultry contributes substantially to household food security throughout the developing world. One of the principal constraints to increasing small-scale poultry production is Newcastle Disease. This acute viral disease can typically kill up to 80 percent of unprotected poultry in rural areas and is found throughout the developing world. This technology review presents the latest understanding of Newcastle Disease, its characteristics, epidemiology, symptoms, and control. It will be of practical value to state and private veterinarians, and to all those involved with rural poultry production who wish to control this disease.
Download or read book Index Veterinarius written by and published by . This book was released on 2005 with total page 1312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Immunity and Protection Induced in Pullets by the V4 Oral Vaccine Against a Pneumotropic Velogenic Newcastle Disease Virus NDV Strain written by Simone Issaca Magalo and published by . This book was released on 2002 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genomics and Biotechnological Advances in Veterinary Poultry and Fisheries written by Yashpal Singh Malik and published by Academic Press. This book was released on 2019-09-14 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genomics and Biotechnological Advances in Veterinary, Poultry, and Fisheries is a comprehensive reference for animal biotechnologists, veterinary clinicians, fishery scientists, and anyone who needs to understand the latest advances in the field of next generation sequencing and genomic editing in animals and fish. This essential reference provides information on genomics and the advanced technologies used to enhance the production and management of farm and pet animals, commercial and non-commercial birds, and aquatic animals used for food and research purposes. This resource will help the animal biotechnology research community understand the latest knowledge and trends in this field. - Presents biological applications of cattle, poultry, marine and animal pathogen genomics - Discusses the relevance of biomarkers to improve farm animals and fishery - Includes recent approaches in cloning and transgenic cattle, poultry and fish production
Download or read book A Laboratory Manual for the Isolation Identification and Characterization of Avian Pathogens written by Louise Dufour-Zavala and published by . This book was released on 2008 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manual for the isolation, identification and characterization of avian pathogens
Download or read book The Geographical Distribution of Animal Viral Diseases written by Stewart Hal and published by Elsevier. This book was released on 2012-12-02 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Geographical Distribution of Animal Viral Diseases attempts to shed some light on the global distribution of 110 different viral diseases, mainly of livestock and companion animals. The world literature was screened for 110 different viruses, and maps were prepared. These maps delineate the global distribution of pathogenic viruses based on authenticated reports from a variety of reliable sources. Four viruses were categorized as affecting more than one species to a significant degree (astrovirus, rabies, rotaviruses, and Rift Valley fever). The largest number of maps involved viruses that affect humans. Of the 28 viruses a large number were from the California encephalitis group. Ten of the 28 viruses were reported only in the Eastern Hemisphere, 14 only in the Western Hemisphere, and four were worldwide. Birds were the next most frequently affected group with the 15 viruses, followed by pigs with 14 viruses. Overall the vector-borne viruses appear to have much sharper and clear-cut geographical boundaries than the others.
Download or read book A Comparison of Serological Methods for Determining Newcastle Disease Immunity in Chickens written by Leland Dwight Schwartz and published by . This book was released on 1963 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Towards a sustainable participatory and inclusive wild meat sector written by Coad, L. and published by CIFOR. This book was released on 2019-01-30 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The meat of wild species, referred to in this report as ‘wild meat’, is an essential source of protein and a generator of income for millions of forest-living communities in tropical and subtropical regions. However, unsustainable harvest rates currently
Download or read book World Livestock 2013 written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-08-22 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The World Livestock 2013: Changing disease landscapes looks at the evidence of changing disease dynamics involving livestock and explores three key areas: the Pressure, including drivers and risk factors that contribute to disease emergence, spread and persistence; the State, describing the disease dynamics that result from the Pressure and their subsequent impact; and the Response, required both to adapt and improve the State and to mitigate the Pressure. The report argues that a comprehensive approach for the promotion of global health is needed to face the complexities of the changing disease landscapes, giving greater emphasis on agro-ecological resilience, protection of biodiversity and efficient use of natural resources to ensure safer food supply chains, particularly in areas worst afflicted by poverty and animal diseases. Speeding up response times by early detection and reaction – including improved policies that address disease drivers – is key. Forging a safer, healthier world requires engagement in the One Health approach, which involves all relevant actors and disciplines spanning animal, human and environmental health sectors.
Download or read book Efficacy of Newcastle Disease Virus Vaccines in Broiler Chickens written by Mohammad Showkat Mahmud and published by LAP Lambert Academic Publishing. This book was released on 2013-01 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Newcastle disease is a highly contagious viral disease affecting many domestic and wild avian species that have severe impact on poultry industry.It can also be transmitted to humans that cause conjunctivitis and flu like symptoms. Effective vaccination of flock is the means to control this disease. This book was to investigate persistence of maternal antibody as well as the comparative efficacy of Avinew and BCRDV vaccines against Newcastle disease in chicks. Birds of groups A and B were primarily and secondarily vaccinated with Avinew and BCRDV respectively at the age of day 3 and 20. Sera samples were obtained from 10 randomly selected birds on each occasion of day 1, 10, 17, 27, 30, 34 and 44 of age of birds. Birds of group C were maintained as unvaccinated control for the determination of existence of maternal antibody. Thus it was indicated that performance of Avinew in respect of elucidation of HI antibody was comparatively better than that of BCRDV and maternal antibody against NDV in chicks persisted to a minimal until the age of day 27 and none at day 30 or 34. This analysis will be useful to professionals working for poultry industry, researcher and vaccine manufacturer.
Download or read book Avian Immunology written by Bernd Kaspers and published by Academic Press. This book was released on 2012-12-02 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of Avian Immunology provides an up-to-date overview of the current knowledge of avian immunology. From the ontogeny of the avian immune system to practical application in vaccinology, the book encompasses all aspects of innate and adaptive immunity in chickens. In addition, chapters are devoted to the immunology of other commercially important species such as turkeys and ducks, and to ecoimmunology summarizing the knowledge of immune responses in free-living birds often in relation to reproductive success. The book contains a detailed description of the avian innate immune system, encompassing the mucosal, enteric, respiratory and reproductive systems. The diseases and disorders it covers include immunodepressive diseases and immune evasion, autoimmune diseases, and tumors of the immune system. Practical aspects of vaccination are examined as well. Extensive appendices summarize resources for scientists including cell lines, inbred chicken lines, cytokines, chemokines, and monoclonal antibodies. The world-wide importance of poultry protein for the human diet, as well as the threat of avian influenza pandemics like H5N1 and heavy reliance on vaccination to protect commercial flocks makes this book a vital resource. This book provides crucial information not only for poultry health professionals and avian biologists, but also for comparative and veterinary immunologists, graduate students and veterinary students with an interest in avian immunology. - With contributions from 33 of the foremost international experts in the field, this book provides the most up-to-date review of avian immunology so far - Contains a detailed description of the avian innate immune system reviewing constitutive barriers, chemical and cellular responses; it includes a comprehensive review of avian Toll-like receptors - Contains a wide-ranging review of the "ecoimmunology" of free-living avian species, as applied to studies of population dynamics, and reviews methods and resources available for carrying out such research
