Processing of feedstuffs and aquafeeds
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This chapter will help the reader understand and appreciate the basic principles of processing, preparation, storage, and quality control in the preparation of aquafeeds. The material in this section is presented in sequence beginning with the processing of basic ingredients to remove antinutritional factors, followed by steps in feed preparation, from the easiest to the more complex processes, and storage. This chapter presents methods and equipment that are useful not only for feed millers, but also for extension workers and fish farmers.
Suggested Citation
Golez, N. V. (2002). Processing of feedstuffs and aquafeeds. In O. M. Millamena, R. M. Coloso, & F. P. Pascual (Eds.), Nutrition in Tropical Aquaculture: Essentials of fish nutrition, feeds, and feeding of tropical aquatic species (pp. 125-147). Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center.
Contents
- Introduction
- Feedstuff processing
- Different methods of feedstuff processing
- Soaking
- Heating and cooking
- Dehulling
- Extraction with organic solvent and chemical treatment
- Feed preparation techniques
- Grinding
- Size grading or sieving
- Weighing
- Mixing
- Conditioning
- Pelleting and extrusion
- Pellet cooling and drying
- Pellet crumbler
- Pellet and crumbled feed cleaner
- Product packaging and storage
- Steps in large-scale feed preparation
- Steps in small-scale feed preparation
- Steps in larval feed preparation
- Quality control
- Feed mill sanitation and maintenance
- Summary
- Guide questions
- Suggested readings
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