World Aquaculture Singapore 2022

November 29 - December 2, 2022

Singapore

MAKING FLOATING AND SINKING FISH FEED WITH TWIN-SCREW EXTRUSION TECHNOLOGY

Hadrien Delemazure*

Clextral

1 rue du Colonel Riez

42700 Firminy France

hadrien.delemazure@clextral.com

 



Twin-screw extrusion has been extensively used to manufacture quality aqua pellets for the last 40 years.

Recipes are getting more complex and diversified, fishmeal and fish oil are being replaced by alternative raw materials, which sources may vary according to international prices fluctuation and availability.

Furthermore, in order to produce both optimal floating and sinking feed, a precise control of the pellet expansion and density is necessary.

Aquafeed production lines are today expected to offer more process flexibility, reliability and durability that can be achieved using twin-screw extrusion technology.