Method for lengthening the seasonal mobility period of fish

Details Method for lengthening the seasonal mobility period of fish Method for lengthening the seasonal mobility period of fish

A - Human Necessities

23

K

A23K 1/16 (2006.01) A23K 1/165 (2006.01) A23K 1/18 (2006.01)

Patent

CA 2604771

This invention is in the field of animal feed, more in particular in the field of fish feed. Surprisingly, it has been found that the seasonal mobility period of fish may be lengthened by interfering with the diet of the fish. We found that it is possible to increase the seasonal mobility period of fish to such an extent that it is even active at temperatures as low as 2 degrees Celsius. Such may be accomplished by adding naturally occurring substances to the feed of the fish. Examples of these naturally occurring substances are immune enhancing ingredients like beta-glucans and/or small amounts of phytohormones like auxin or gibberellic acid. Also, combinations of these substances, in particular the combination of beta-glucans and phytohormones, were shown to have a synergistic effect in that they lengthened the seasonal mobility period of the fish more than the individual components on their own.

L'invention ressort du domaine de l'alimentation d'animaux et plus particulièrement de poissons. Il a été découvert avec surprise que la période de mobilité saisonnière de poissons pouvait être allongée en jouant sur leur régime alimentaire, et cela d'une manière importante puisqu'opérant à des températures aussi basses que 2 °C. Cela s'obtient par l'adjonction aux aliments des poissons de substances produites naturellement telles que des renforçateurs d'immunité par exemple des beta-glucans ou de faibles quantités de phytohormones comme l'auxine ou l'acide gibbéréllique, ou leurs combinaison en particulier la combinaison beta-glucans + phytohormones, qui a une action synergique plus forte que chacun de ces additifs séparés.

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