Aller Aqua has discovered a new way of feeding fry which improves growth and reduces early mortality and deformities.

Aller Aqua is using phospholipids to ensure that fry feed has adequate fatty acids Photo: Aller Aqua

Aller Aqua is using phospholipids to ensure that fry feed has adequate fatty acids Photo: Aller Aqua

The importance of polyunsaturated fatty acids (PUFA) in the nutrition of larvae and fry is well-documented and PUFAs have been a focus area when developing fry feeds at Aller Aqua.

Phospholipids, derived from krill oil or purified fish oil, are essential for maintaining membrane homeostasis, gene expression, hormone synthesis, neurological development and inflammatory response and research has shown that PUFAs presented as phospholipids are digested and metabolised more efficiently than PUFAs in other lipid classes.

Studies with trout fry at Aller Aqua Research and at a test farm showed improved growth when fish were fed ALLER INFA EX GR and ALLER FUTURA EX GR, exceeding that of fish fed with major competing brands. At the same time, fish fed with Aller Aqua fry feeds were more uniformly sized, showed no deformities and had lowered mortality down to 1% in trout fry up to 3g.

Aller Aqua is now adding PUFAs as phospholipids to fry feed, enhancing the already positive benefits of these nutrients. The upgrade applies to all of Aller Aqua’s fry feeds.