Water stability of extruded pelleted feed for White shrimp (Litopenaeus vannamei) using cassava meal 27% in the diet, and containing variable levels of synthetic pellet binder (JB Binder) of 0.0, 0.1, 0.2 and 0.3% in the diets were evaluated.

The water stability evaluation by physical appearance revealed that the extruded pellets without supplementation of the aquatic pellet binder were fully disintegrated in less than 2 hrs immersion. 

Supplementation of the synthetic pellet binder(JB Binder) have improved water stability of the pellets, and the pellets with 0.2 and 0.3% synthetic binder supplementation have maintained integrity at 2 hrs immersion.

The water stability of the pellets determined by the method of Thailand Industrial Standard Institute (TISI) has also shown that the pellets without the synthetic binder supplementation remain less than 80% integrity at 2 hrs immersion.

Meanwhile, all the pellets with the synthetic binder supplementation have more than 80% integrity at 2 hrs immersion. It is therefore recommended that extruded pelleted feed for White shrimp that using cassava meal as a sole basal feed ingredient should be supplemented with 0.2% synthetic binder for the provision of water stability to meet requirement of the animals.