The results of the 1963 feeding trials may be summarized as follows: (1) Fish fed a vitamin-supplemented all-meal diet were maintained successfully for 24 weeeks with low mortality; (2) Rancidity in salmon carcass meal as indicated by a high TBA value reduced growth; (3) Fish that received meat supplements deposited more protein but did not have more efficient protein utilization than fish fed all-meal diets; (4) soybean oil meal was an inadequate replacement for cottonseed meal when fed as a component of the basal ration; (5) increasing the caloric level of a diet produced a sparing action on the protein requirements of the fish; (6) blood characteristics of fish from all diets were similar and satisfactory; (7) Fish fed with the meat-control diet had fatty infiltrated hepatic cells, which was not the case with fish fed the all-meal diets.

Fish Nutrition aims to present the state of knowledge of basic and applied nutritional requirements of fishes. Most of the information found in this book involves salmonids, their nutrition, and metabolism of nutrients. This is in view of the fact that more research has been done and completed with this fish. Although applied fish nutrition is a very broad field, this book focuses on some of its aspects. These include the classes of nutrients and requirements for several types of fishes. This book comprises of 11 chapters. The first few chapters deal with the general nutrient requirements of fishes. Then, other chapters discuss calorie and energy as well as micro- and macronutrient needs and requirements. The following chapters deal with the non-nutrient components of the diet, or those that influence the characteristics of food products including texture, odor, flavor, and color. Other topics covered are enzymes and systems of intermediary metabolism (Chapter 6); feed formulation and evaluation (Chapter 7); and salmonid husbandry techniques (Chapter 9). Nutritional fish diseases are also discussed in this book. Some of these diseases include thyroid tumor, gill disease, anemia, lipoid liver degeneration, and visceral granuloma. In Chapter 11, the relationship of nutrition and pathology is given emphasis. This chapter also tackles the diet and general fish husbandry. This topic is very important, because an adequate diet for fish husbandry is the foundation of fish farming.

Substitute components in the Abernathy salmon diet were tested in 2 years of feeding trials with fall chinook salmon fingerlings. These diet tests indicated that turbot meal and dogfish meal were adequate substitutes for salmon meal. Soybean oil was superior to peanut, corn, cottonseed, or safflower oil. Corn gluten, safflower or soybean meals were inadequate substitutes for cottonseed meal. Dried buttermilk was equal to dried skim milk. The mixed diet could be stored under refrigeration for 3 days and the premixed meals could be held at room temperature for several weeks without observable deleterious effect on the fish; storage for greater periods was deleterious.

Fish Nutrition, Fourth Edition is an up-to-date, authoritative presentation of all key elements of the nutrition of fish and crustaceans. As aquaculture is rapidly expanding, more than 200 herbivorous and carnivorous species occupy a diverse range of ecological niches, and have therefore evolved to utilize a wide array of food sources. This new edition highlights these differences and covers the complexity and challenges associated with fish nutrition, addressing nutrient requirements to produce high-quality, healthful and sustainable resources, the essential nutrients for fish species, including proteins and amino acids, vitamins, minerals and essential fatty acids, a feed quality assessment, and fish pathology. Led by a team of international experts, this edition provides readers with new information on the use of high-throughput technologies in fish nutrition research, the role of feeds on the community structure of the microbiome, and advances in essential nutrient requirements. - Features expansive updates to the previous edition, including a new chapter dedicated to diet analysis and evaluation - Addresses the roles of fish nutrition and feeds on sustainability and the environmental impacts of aquaculture - Covers basic nutritional biochemistry and applied nutritional topics