News features and technical articles about the evolution of aquaculture, one of the world’s fastest growing industries.



A look at the SME controlled extrusion process

A study was conducted using a Twin-Screw Extruder equipped with Specific Mechanical Energy (SME) and Density Control valves, to determine the effect of SME on the water stability of shrimp feeds. Further research is needed to evaluate the performance. 


Twin screw technology for better extruded feeds

Extrusion processing can be a better alternative to produce high quality-low- polluting shrimp feeds. Extruded pellets with high water stability can be produced by controlling the Specific Mechanical Energy (SME) and without the inclusion of artificial binders. New extruders are 

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Extrusion processing of aquatic feeds, Part 2

In the aquaculture industry, extruders have been used to produce a great variety of products, but today most of these feeds fall into the sinking or floating categories. 


Norway study finds extrusion temperature

A study by the AKVAFORSK Institute of Aquaculture Research sought to determine if extrusion temperatures negatively affect digestibility of nutrients in aquafeed. 


Extrusion production of aquatic feeds

Extrusion cookers and extruders have similarities and many not-so-subtle differences that have effects on end products' characteristics.