Fish Health Management Concepts And Methods Of Intensive Aquaculture

""" This book has been written as a guide to the management and use of formulated feeds in intensive fish and shrimp culture. While its focus is on the use of commercially pro duced feeds in intensive production systems, it is anticipated that many of the practical issues covered will be of equal interest to those fish farmers who make their own feeds and to those who use formulated feeds in less intensive systems. Feeds and feeding are the major variable operating costs in intensive aquaculture and the book is primarily in tended to aid decision making by fish farm managers in areas of feeding policy. The dramatic increases in aquaculture production seen over the past 15 years have been made possible, in large part, by gains in our understanding of the food and feed ing requirements of key fish and shrimp species. A global aquaculture feeds industry has developed and a wide range of specialist feeds is now sold. The new options in feeds and feeding systems, which are becoming available, necessitate continual review by farmers of their feeding policies, where choices must be made as to appropriate feed types and feeding methods. While growth rates and feed conversion values are the prime factors of interest to farmers, other important issues, such as product quality and environmental impacts of farm effiuents, are also directly related to feed management practices.

This book is an inclusive coverage of advances in aquaculture health management. It offers latest updates as well as explains the novel concepts and issues related to aquatic animal health management. To support the understanding of the concepts, there is extensive use of illustrations. Chapters emphasize on the state of art techniques and hold great promise for the sustainable development of aquaculture. This book is of interest to teachers, researchers, aquatic biologists, capacity builders and policymakers. Also the book serves as additional reading material for undergraduate and graduate students of aquatic sciences, marine sciences, biotechnology, ecology, and environmental sciences. National and international aquatic scientists, policy makers will also find this to be a useful read.

Health Maintenance and Principal Microbial Diseases of Cultured Fishes, Third Edition is a thoroughly revised and updated version of the classic text. Building on the wealth of information presented in the previous edition, this new edition offers a major revision of the valuable health maintenance section, with new pathogens added throughout the book. Health Maintenance and Principal Microbial Diseases of Cultured Fishes, Third Edition focuses on maintaining fish health, illustrating how management can reduce the effects of disease. The text is divided into sections on health maintenance, viral diseases, and bacterial diseases, and covers a wide variety of commercially important species, including catfish, salmon, trout, sturgeon, and tilapia. This book is a valuable resource for professionals and students in the areas of aquaculture, aquatic health maintenance, pathobiology, and aquatic farm management.

This manual deals in two volumes with the practical aspects of management related to freshwater fish culture in earthen ponds. The first volume (FAO Training Series No. 21/1, 1996, ISBN 92-5-102873-7, US$51.00) explains how to manage the pond itself. This second volume deals with how to manage fish stocks and, as a whole, a fish farm. Fish handling, propagation, feeding, harvesting, grading and storage are explained in simple terms, as well as the prevention and treatment of simple fish diseases and the monitoring of fish farm activities.

Crustaceans and mollusks are the glamor species of the seafood in dustry. Interest in aquaculture 1 of these invertebrates, frequently re ferred to as shellfishes, has resulted from increased exploitation of wild stocks. This has driven prices up to levels very attractive to investors. Much attention has been focused on crustaceans such as freshwater crawfishes, freshwater prawns, penaeid shrimps, and hom arid lobsters, and mollusks such as oysters, clams, mussels, scallops, and abalone. Success has been greatest with low trophic level species such as freshwater crawfishes and bivalve mollusks where nature subsidizes the aquaculturist in many ways, providing feed at low or no cost, seed for culture systems, waste removal, and so forth. Species such as homarid lobsters, penaeid shrimps, and abalone may have complicated life cycles, relatively slow growth rates, and other prob lems that have, so far, limited development of aquaculture of these high value, high visibility species. All taxa listed initially can be cultured from egg to egg in captivity, but many factors influence the commercial profitability of raising them in the United States. Investment in aquaculture of crustaceans and mollusks in the United States or by U. S. companies abroad has been extensive. Yet, only freshwater crawfishes and oysters have been cul tured on a truly large-scale, profitable basis to date in the United States proper. Other taxa such as penaeid shrimps and abalones are being cultured in the Orient where demand justifies expensive, labor intensive culture systems.

This extensive work focuses on an important group of temperate freshwater fish, approaching the topic from the perspectives of both biology and aquaculture. It compiles the latest research on fish belonging to the Percidae family and describes in detail all biological aspects relevant to the culture of different species, including ecology, reproductive physiology, feeding and nutrition, genetics, immunology, stress physiology and behavior. It also considers commercial fish production and fish farming topics, such as protocols for induction of gonad maturation, spawning, incubation and larval rearing. Expert contributors not only provide a critical peer review of scientific literature but also original research data, and identify effective practical techniques. The book features chapters on systematics, ecology and evolution, on development, metabolism and husbandry of early life stages and on growth, metabolism, behavior and husbandry of juvenile and grow-out stages. Furthermore, the authors consider genetic improvement and domestication, as well as diseases and health management, crucial to the readers' understanding of these fish and how they can be cultured. Both researchers of percid fish biology and aquaculture professionals who are considering intensive and pond culture of percid fishes will value this timely and comprehensive handbook.)