Feed for farmed fish, method to provide fish of high quality...

Details Feed for farmed fish, method to provide fish of high quality... Feed for farmed fish, method to provide fish of high quality...

A - Human Necessities

23

K

A23K 1/18 (2006.01) A23K 1/16 (2006.01)

Patent

CA 2203106

The present invention relates to a fish feed, a method to provide fish having high quality and use of additional components to prepare said feed. Urea and possibly also TMAO or other additional components with similar methyl donating properties are added to a standard feed. Fish-like rainbow trout and Atlantic salmon fed with the invented feed surprisingly achieve flesh having a significantly stronger colour than fish fed with other known feeds. The invented feed further has surprisingly showed prophylactic properties related to development of ulcers on the fish skin. Additionally, said feed is favourable according to fast digestibility and salt-water tolerance.

Aliments pour poissons, procédé d'obtention de poissons de grande qualité, et utilisation de constituants supplémentaires dans la préparation de ces aliments. On ajoute à des aliments normaux de l'urée et éventuellement de l'oxyde de triméthylamine ou d'autres constituants supplémentaires caractérisés en ce qu'ils sont également donneurs de méthyle. De manière surprenante, les poissons tels que les truites arc-en-ciel et les saumons de l'Atlantique, dont le régime alimentaire comprend des aliments du type précité, ont une chair de couleur sensiblement plus intense que celle des poissons qui ont consommé d'autres aliments connus. Lesdits aliments présentent également, et de manière surprenante, des propriétés de prévention de l'apparition d'ulcères sur la peau des poissons. Par ailleurs, ces aliments sont avantageux sur le plan de la digestibilité des matières grasses et de la tolérance à l'eau salée.

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