| Preface | 7 |
| Natural growth promoters in aquaculture practices | 11 |
| Innovative approaches to reduce feed cost in aquaculture: optimizing nutrient utilization and gut health | 29 |
| Plant protein isolates and hydrolysates as alternative to the animal protein in aquaculture diets | 47 |
| Use of purified extracts from fish viscera as an enzyme additive in feeds for juvenile marine fish | 67 |