Feed for aquatic species
AssigneeNorsk Hydro ASA
InventorsHarald Breivik, Elin Kulas, Kari Aasbo, Berit Aanesen, Lola Sanna
Life of this patent
Estimating the term…
Abstract
The invention relates to a feed for aquatic species and crustaceans, in particular marine species and fry thereof. The feed described comprises proteins, lipids and additional, optional components, and is characterized in that the lipids are one or more marine oils and/or vegetable oils treated by urea and/or other amines or amides, to provent degradation due to oxidation (oxidative stress).
Claims21
1-6. (canceled)
A method of farm-raising fish that are still in the growing stage, which comprises feeding the fish a feed that comprises 25-70% by weight of proteins, 5-60% by weight of lipids, 0-40% by weight of carbohydrates, and 0-15% by weight of one or more additional components, wherein the lipids comprise at least one oil selected from the group consisting of marine oils and vegetable oils, wherein said at-least-one oil has been treated with at least one nitrogen-containing compound selected from the group consisting of urea and compounds of the general formula
- wherein each of R1, R2, and R3 is independently a radical selected from the group consisting of H, C1-10 alkyl, C2-10 alkenyl, RC(O)—, RN(H)—C(O)—, and RN(H)—C(O)—C(O)— wherein R is H, C1-10 alkyl, or C2-10 alkenyl, with the proviso that at least one of R1, R2, and R3 is other than H, the amount of said at-least-one nitrogen-containing compound being sufficient to reduce the oil's susceptibility to being degraded through oxidation, and the amount of said at-least-one oil in the feed being sufficient to enhance the feed's ability to either improve the survival rate of the fish or improve the growth rate of the fish.
Dependencies are inferred from the claim text.