S. Trutta


Brown trout (S. trutta) is the indigenous commercial and recreational species of European rivers, streams, and lakes, and still the preferred traditional trout of many restaurants. Like most salmonid, the brown trout is anadrome, and can be produced in a freshwater form as well as a lake and saltwater form, each with distinct phenotypic characteristics. In addition to this the general phenotype of the brown trout has a very large biological variation ranging from copper coloured with large red spots to a more silvery phenotype with tiny black dots, and anything in between. The brown trout has a lower optimal temperature range than the rainbow trout, with a less aggressive feeding behaviour and somewhat longer production cycle should be anticipated.

AquaSearch S. trutta, comes in two different phenotypes, both available in all female, triploid and mixed sex versions. With a potential delivery window of December – April.

Genetic background and breeding

AquaSearch S. trutta originates from a wild freshwater strain and a migrated strain > 35 years back, and has been domesticated and selected for farming conditions ever since. With all female and triploid production, as the most recent development.

General breeding traits

  • Improved growth rate
  • Continued growth after 1,5 kg
  • Red-spotted respectively black-spotted exterior

Optional breeding traits

  • Currently not available

General characteristics

> 35 years/ 12 generations of domestication have resulted in a true “farm animal” more resilient to stress, farming conditions and handling than wild stocks. Growth potential has also been improved through generations of selection, but the brown trout more reluctant bottom feeding behaviour remains.

  • Specific disease-free origin
  • High hatchability (> 95% guarantied*)* Pending recognized hatching conditions
  • All female material available
  • Mixed sex material available
  • Triploid material available
  • General stress and disease tolerance.
  • Improved growth rate
  • Continued growth after 1,5 kg
  • Low feed conversion rate
  • Two different phenotypes available