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In epizootics of channel catfish virus diseasse (CCVD) at four widely separated fish farms in 1968, affected fry and fingerlings spiraled, hung in a vertical position with head at the surface, or were distressed. In various combinations were edema, hemorrages, and anemia. The disease had a peracute to acute course, and stress to the fish preceded most epizootics. The virus induced formation of syncytial cells in affected cultures, which is considered at present to be of diagnostic significance. Secondary bacterial infections were found in fish with CCVD. Columnaris infection masked the symptoms of the virus disease.
Experts discuss the threat posed by emerging viruses and describe ongoing efforts to face future outbreaks by searching for new antivirals, developing new vaccines, and improving methods of diagnosis and surveillance. Australian contributor.
Aquaculture Virology, Second Edition covers all the known virus families, and specific diseases that affect each aquatic organism. Descriptions of each disease includes disease name, structure and composition of virus, classification and virus replication, epidemiology, pathology and immunity, diagnostic methods (gross pathology, histopathology, cell culture, PCR, sequencing, ELISA, etc.) and prevention and control. This is an excellent reference of updated foundational and practical knowledge from experts in both academia and research.Those interested in fish viral diseases will find the book an excellent source for high quality illustrations of viral structure, diagrams of pathogenesis of diseases, and many images of gross pathology and histopathology lesions, using the same format in all chapters to facilitate the reading and studying. This second edition of the book will cover all virus families and the specific diseases relevant to aquaculture with current information delivered in a systematic and succinct way to the researcher, teacher, student, diagnostic laboratory staff, clinical veterinarian, aquaculture disease practitioner, farmer, and all people that are interested in viruses in general. - Provides unique, comprehensive information on animal pathogens and viruses found in aquaculture and fisheries - Presents high-quality illustrations of viral structure, diagrams of viral disease processes, gross pathology, and histopathology lesions to aid in understanding - Incorporates all updated changes in taxonomy since the first edition - Includes a new chapter on the impact of climate change on the manifestations of different aquatic animal viral diseases - Describes aquatic viruses of the major aquatic animals, fish, crustaceans, and mollusks
This book is a comprehensive, generously illustrated, and up-to-date reference on the virology of fishes—predomiantly species of the class Osteichthyes, but including representative members of the classes Chrondrichthyes and Myxini. It covers some thirty years since the first virus was isolated from a fish and describes 63 diseases and agents of viral, viruslike, or mistaken viral nature.
This second edition of the book Fish Diseases and Disorders, Viral, Bacterial and Fungal Infections volume 3 represents a major update on the viral, bacterial and oomycete disorders of finfish and shellfish. Since publication of the first edition (in 1999), considerable advances have been made and therefore all the chapters have been thoroughly revised. The new and more eloquent research and current techniques have extended our knowledge and understanding of these infectious organisms. Researchers from Europe, North America, Australia and Asia have been involved in updating this book. With the addition of new information, some of the older texts in the original chapters have been condensed; this is to ensure a more focused and comprehensive reviews. For this edition, deletion and/or combination a couple of the original chapters, have been made and added three new chapters (Chapter 6 on 'Alphaviruses', Chapter 7 on 'Oncogenic Viruses' and Chapter 21 on 'Genomics of Finfish and Shellfish Microbial Pathogens'), which have been written by new authors. There are 22 new authors who have offered to write new chapters and/or update many of the original chapters. The aims, philosophy, focus, audience and format of this second edition have remained unchanged, and the authors hoped that this edition will continue to be useful to colleagues.
Specific diseases. Lesions of organic systems. Chemical and physical agents of disease. Nutritional diseases. Neoplasia.
The time seems ripe for a critical compendium of that segment of the biological universe we call viruses. Virology, as a science, having passed only recently through its descriptive phase of naming and num bering, has probably reached that stage at which relatively few new-truly new-viruses will be discovered. Triggered by the intellectual probes and techniques of molecular biology, genetics, bio chemical cytology, and high resolution microscopy and spec troscopy, the field has experienced a genuine information explosion. Few serious attempts have been made to chronicle these events. This comprehensive series, which will comprise some 6000 pages in a total of about 18 volumes, represents a commitment by a large group of active investigators to analyze, digest, and expostulate on the great mass of data relating to viruses, much of which is now amorphous and disjointed, and scattered throughout a wide literature. In this way, we hope to place the entire field in perspective, and to develop an invalua ble reference and sourcebook for researchers and students at all levels. This series is designed as a continuum that can be entered anywhere, but which also provides a logical progression of developing facts and integrated concepts.
The history of channel catfish farming in the United States serves as a model for the development of pond-based aquaculture industries worldwide. Channel catfish farming is the largest and economically most important aquaculture industry in the United States. In 2003, over 300,000 metric tons (662 million pounds) of channel catfish were processed, representing about half the total United States aquaculture production. Demand for farm-raised catfish is strong, with record processing years in 2002 and 2003. In 22 chapters written by active scientists in the field, Biology and Culture of Channel Catfish comprehensively synthesizes over 30 years of research on this American icon. Throughout the book, fundamental biological aspects of channel catfish are linked to practical culture techniques. Topics include: • Latest information on reproductive physiology, genetics, and breeding • Comprehensive treatment of catfish nutrition, feeds, and feeding practices • Water quality management and pond dynamics • In-depth review of immunology in channel catfish • Practical information on diseases and health management • Techniques for commercial culture, including innovative techniques such as raceways, recirculating systems, and partitioned aquaculture systems • Catfish economics and marketing • Exploration of environmental concerns, including recommended Best Management Practices