Second Edition

By

Tom Lovell

Preface

Aquaculture is now recognized as a viable and profitable enterprise worldwide. As aquaculture technology has evolved, the push toward higher yields and faster growth has involved the enhancement or replacement of natural foods with prepared diets.  In many aquaculture operations today, feed accounts for more than one-half the variable operating cost. Therefore, knowledge on nutrition and practical feeding of fish is essential to successful aquaculture.

This book was not written exclusively for scientists but for students, practicing nutritionists, and aquaculturists. It covers the known nutrient requirements and deficiency effects for different fishes, and digestion and metabolism of nutrients and energy. It discusses nutrients Sources and preparation of practical and research feeds. It gives direction for conducting fish nutrition and feeding experiments. Feeding practices for salmonids, Channel catfish, tilapias, shrimps and hybrid striped bass are presented.

Since the first edition of this book was printed, The National Research Council of the National Academy of Sciences has revised the nutrient requirements for fish. These revisions are in the present edition. Other additions to this revised edition are chapters on   nutrition and fish health, and bioavailability of nutrients. Each original chapter has been meticulously revised and updated with new information. Aquaculture is a dynamic area and new technologies are being introduced continuously, therefore, some of the material discussed in this revised edition may become obsolete quickly. Nonetheless, the material presented has been thoughtfully selected and updated so that it will be of maximum use to persons whose interests range from general aquaculture to animal nutrition to feed manufacture.

The author deeply appreciates the assistance given by the five contributing authors, each being pre-eminent in the in the area he discussed.

Contents

1. The Concept of Feeding Fish
2. Dietary Requirements
3. Digestion and Metabolism
4. Nonnutrient Diet Components
5. Bioavailability of Nutrients
6. Nutrition and Fish Health
7. Fish Nutrition and Feeding Experiments
8. Feed Formulation and Processing
9. Feeding Channel Catfish
10. Feeding Salmon and Trout
11. Feeding Hybrid Striped Bass
12. Feeding Tilapias
13. Feeding Penaeid Shrimp

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Prep. / Ayman Ashry
Rev. /ِِِAsmaa Ahmed
Manage. / Zeinab Osman