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Method for production of feed for salmonides and feed for salmonides
| Details |
Inventors: Johnsen, Freddy; Hj.o slashed.rnevik, Leif; Ringdal, Ole;
Assignee: Norsk Hydro ASA (Oslo, NO)
Primary Examiner: Sayala; Chhaya D.
Assistant Examiner:
Attorney, Agent or Firm: Wenderoth, Lind & Ponack, L.L.P.
A method for production of fish feed containing fish products and standard feed components and fish feed products. Ammonium-, sodium- or potassium diformates, comprising formic acid or mixtures thereof are included in the fish products prior to their further processing and mixing with the other feed components. The final fish feed contains preferably 0.3-2.5 weight % formates based on the total feed. |
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DETAILED DESCRIPTION What is claimed is: 1.
A method for production of fish feed, comprising fish products and fish feed components, comprising ammonium diformate, sodium diformate, or potassium diformate sodium tetraformate, or mixtures thereof and optionally formic acid, in the fish products in amounts of 1-5 weight % prior to their further processing to meal and mixing with the fish feed components in amounts resulting in 0.
5-2.
5 weight % diformates/sodium tetraformate based on the total feed.
2.
A method according to claim 1, wherein potassium diformate is included in fish meal in an amount of 1-1.
5 weight %.
3.
A method according to claim 1, wherein fish remains or minced fish preserved with diformates are mixed with the fish feed components and processed into fish feed.
4.
A fish feed comprising fish products and fish feed components, wherein the fish products contain ammonium diformate, potassium diformate or sodium diformate or sodium tetraformate, or mixtures thereof, and optionally formic acid, and the amount of the fish products is 20-60 weight % of the total feed.
5.
A fish feed according to claim 4, wherein the fish products contain 1-5 weight % diformates/sodium tetraformate, and optionally formic acid, resulting in amounts of diformates/sodium tetraformate of 0.
3-2.
5 weight % based on the total feed.
Description:
This application is a 371 application of International Application No.
PCT/NO97/00279 filed Oct.
22, 1997.
The present invention relates to a method for production of feed for salmonides, like Atlantic salmon or rainbow trout, comprising processing fish products and standard feed components.
The invention also comprises fish feed containing fish products and standard feed components.
Within the aquaculture industry there is a continuous search for improved feeds which will increase growth rate, feed utilisation, digestibility of protein and fat, etc.
Within the field of animal feed there are known several types of additives to feeds which increase the growth rate for i
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