Methods for producing fish with high lipid content
AssigneeLiveFuels, Inc.
InventorsDavid Stephen, Gaye Elizabeth Morgenthaler
Life of this patent
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Abstract
The invention provides methods for producing biofuel from algae, that use fish which have a high capacity of producing and/or accumulating lipids to harvest algae from an algal culture. The invention also provides methods for growing fish that result in a high lipid content. The invention also provides methods for creating fish that have a high capacity of producing and accumulating lipids by breeding and/or recombinant DNA techniques. Also included are transgenic fish that have a higher lipid content than wild-type fish.
Claims25
A method for producing a fish, comprising:
- (i) introducing a transgene into a fish, wherein the presence of said transgene results in a modification of the lipid content of said fish, and
- (ii) selecting a fish or a progeny thereof that comprises said transgene, wherein the lipid content of said fish or progeny thereof is greater than the lipid content of a fish without said transgene.
A method for producing a fish, comprising:
- (i) reproducing a population of fish according to a breeding program that is directed to modifying a phenotype, wherein said phenotype is lipid content, and
- (ii) selecting a fish from a succeeding generation in the breeding program, wherein the lipid content of said fish is greater than the lipid content of fish of an earlier generation.
A method for culturing fish, comprising:
- administering an antagonist of a fish hormone to a fish to prevent sexual maturation of the fish, wherein the fish hormone is lutenizing hormone, follicle stimulating hormone, or gonadotropin releasing hormone, and wherein the growth rate of a sexually mature fish is lower than the growth rate of a sexually immature fish, thereby increasing the lipid content of the fish.
A method for culturing fish, comprising:
- administering a fish hormone or an agonist thereof to a fish to accelerate sexual maturation of a female fish, wherein the fish hormone is lutenizing hormone, follicle stimulating hormone, or gonadotropin releasing hormone, and wherein the lipid content of a sexually mature female fish is greater than the lipid content of a sexually immature female fish.
A fish comprising a transgene wherein the presence of said transgene results in a lipid content higher than a fish without said transgene, or a change in the quality and quantity of lipids relative to a fish without said transgene.
A fish produced by a method that comprises:
- (i) reproducing a population of fish according to a breeding program that is directed to modifying a phenotype, wherein said phenotype is lipid content or lipid content and quality, and
- (ii) selecting a fish from a succeeding generation in the breeding program, wherein the lipid content of said fish is greater than the lipid content of fish of an earlier generation.
Dependencies are inferred from the claim text.