This fully updated new edition provides a comprehensive guide to enzyme-supplemented animal feeds. It explores using enzymes in fish and shrimp diets, new understanding of how phytases function, and NSPase research. It also includes new chapters on enzyme combinations, antibiotic free diets and measuring response in feed trials.

Contributions by: Ceinwen Evans, Hamish Irving, Jari Vehmanperä, Kari Juntunen, John Patience, Qingyun Li, Amy Petry, Jason Lee, Kyle Brown, Aaron Cowieson, Daniel Menezes-Blackburn, Ralf Greiner, Ursula Konietzny