IP Library › Granted Patent US 12,458,042
Granted Patent B2
US 12,458,042 · App. 16/960,318 · Granted Nov 4, 2025

Probiotic bacteria for fish

Inventor: Henning Sørum (Oslo, NO)
Assignee: PREVIWO AS
A23K10/18A23K50/80A61K35/741
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Quick Facts
Patent No.
US 12,458,042
App. No.
16/960,318
Granted
Nov 4, 2025
Kind
B2
Abstract

The present document is directed to probiotic bacteria and their use in fish farming for increasing the weight of fish and for treating and/or preventing a microbial infection of the fish. The bacteria are species within the Aliivibrio, Psychrobacter and Pseudomonas genera.

Claims (22)

1 . A method for treating fish, said method comprising the steps of:

a) adding species of a probiotic bacteria to water, wherein the species of probiotic bacteria comprises a Psychrobacter piscimesodermis , a Psychrobacter piscimesenchymalis , a Psychrobacter piscisubcutanea , a Pseudomonas salmosubcutaneae , a Pseudomonas salmosubpectoralis , and a Pseudomonas salmointermuscularis ; and

b) exposing the fish to the species of probiotic bacteria for a time period of 30 seconds to 5 hours,

wherein exposure results in an increase in the weight of the fish and/or an increase in the rate of growth of the fish;

wherein the probiotic bacteria are administered to the fish topically;

wherein a total concentration of the one or more species of probiotic bacteria in the water is from 10 4 CFU/ml to 10 12 CFU/ml; and

wherein the fish is salmon.

2 . The method of claim 1 , wherein the species of bacteria includes an isolated and biologically pure strain of Psychrobacter piscimesodermis Fisk 1, 41, 6/3-2014 Atl. Salm, which was deposited at National Collection of Industrial and Marine Bacteria and has been assigned accession number NCIMB 42947.

3 . The method of claim 1 , wherein the species of bacteria includes an isolated and biologically pure strain of Psychrobacter piscimesenchymalis Fisk 2, 42, 6/3-2014 Atl. salm, which was deposited at National Collection of Industrial and Marine Bacteria and has been assigned accession number NCIMB 42948.

4 . The method of claim 1 , wherein the species of bacteria includes an isolated and biologically pure strain of Psychrobacter piscisubcutanea Fisk 3, 43, 6/3-2014 Atl. Salm, which was deposited at National Collection of Industrial and Marine Bacteria and has been assigned accession number NCIMB 42949.

5 . The method of claim 1 , wherein the species of bacteria includes an isolated and biologically pure strain of Pseudomonas salmosubcutaneae Fisk 3, 13/5-2014, hb, Atl. Salm, which was deposited at National Collection of Industrial and Marine Bacteria and has been assigned accession number 43330.

6 . The method of claim 1 , wherein the species of bacteria includes an isolated and biologically pure strain of Pseudomonas salmosubpectoralis Fisk 3, 13/5-2014, ba, Atl. salm., which was deposited at National Collection of Industrial and Marine Bacteria and has been assigned accession number 43331.

7 . The method of claim 1 , wherein the species of bacteria includes an isolated and biologically pure strain of Pseudomonas salmointermuscularis Fisk 4, 13/5-2014, ha, Atl. salm., which was deposited at National Collection of Industrial and Marine Bacteria and has been assigned accession number 43332.

8 . The method of claim 1 , wherein the species of probiotic bacteria includes at least one of

an isolated and biologically pure strain of Psychrobacter piscimesodermis Fisk 1, 41, 6/3-2014 Atl. Salm, which was deposited at National Collection of Industrial and Marine Bacteria and has been assigned accession number NCIMB 42947;

an isolated and biologically pure strain of Psychrobacter piscimesenchymalis Fisk 2, 42, 6/3-2014 Atl. salm, which was deposited at National Collection of Industrial and Marine Bacteria and has been assigned accession number NCIMB 42948;

an isolated and biologically pure strain of Psychrobacter piscisubcutanea Fisk 3, 43, 6/3-2014 Atl. Salm, which was deposited at National Collection of Industrial and Marine Bacteria and has been assigned accession number NCIMB 42949;

an isolated and biologically pure strain of Pseudomonas salmosubcutaneae Fisk 3, 13/5-2014, hb, Atl. Salm, which was deposited at National Collection of Industrial and Marine Bacteria and has been assigned accession number 43330;

an isolated and biologically pure strain of Pseudomonas salmosubpectoralis Fisk 3, 13/5-2014, ba, Atl. salm., which was deposited at National Collection of Industrial and Marine Bacteria and has been assigned accession number 43331; and

an isolated and biologically pure strain of Pseudomonas salmointermuscularis Fisk 4, 13/5-2014, ha, Atl. salm., which was deposited at National Collection of Industrial and Marine Bacteria and has been assigned accession number 43332.

9 . The method of claim 8 , wherein the species of probiotic bacteria further comprises at least one or more of an Aliivibrio njordis , an Aliivibrio balderis and an Aliivibrio nannie.

10 . The method of claim 1 , wherein the species of probiotic bacteria further comprises at least one or more of an Aliivibrio njordis , an Aliivibrio balderis and an Aliivibrio nannie.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 16, 2020
From: SØRUM, HENNING
To: PREVIWO AS
Reel/Frame 053231/0587 →
Priority Claims (1)
SE 1850021-5 · Jan 8, 2018 · national
Continuity (1)
Related Publication 20220174982A1 · Jun 9, 2022
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