# US 11,077,158 B2 · Omega-3 fatty acid enrichment of poultry products with defatted microalgae animal feed

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- Number: US 11,077,158 B2
- Document ID: US11077158B2
- Status: Granted
- Kind: B2
- Application number: 15/326,837
- Filed: 2015-07-17
- Published: 2017-07-20
- Granted: 2021-08-03
- Earliest claimed: 2014-07-17
- Assignees: Cornell University
- Applicants: Cornell University
- Inventors: Xingen Lei
- Web page: https://patentgrep.com/patent/US11077158B2

## CPC

- A61K 36/05: Chlorophycota or chlorophyta (green algae), e.g. Chlorella
- A23K 10/16: Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions (A23K10/12 takes precedence)
- A23K 50/75: for poultry
- A23L 15/20: {Addition of proteins, e.g. hydrolysates, fats, carbohydrates, natural plant hydrocolloids; Addition of animal or vegetable substances containing proteins, fats, or carbohydrates}
- A23L 33/115: Fatty acids or derivatives thereof; Fats or oils
- A23L 33/30: {Dietetic or nutritional methods, e.g. for losing weight (A23L33/10 takes precedence)}
- A61K 35/57: Birds; Materials from birds, e.g. eggs, feathers, egg white, egg yolk or endothelium corneum gigeriae galli
- A61K 36/02: Algae
- A61K 36/55: Linaceae (Flax family), e.g. Linum
- A23V 2002/00: Food compositions, function of food ingredients or processes for food or foodstuffs
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A23K: FODDER
- A23L: FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF (preservation thereof A23B)
- A23V: INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION

## Abstract

The present invention relates to omega-3 fatty acid enrichment, and n-6 to n-3 fatty acid ratio improvement, of poultry products using animal feed supplemented with defatted microalgae, and treatment methods involving such poultry products. One aspect of the present invention relates to a method of producing poultry eggs with elevated amounts of n-3 fatty acids. This method involves feeding poultry an amount of defatted microalgae under conditions effective for the poultry to produce an egg comprising about 300 mg to about 550 mg of n-3 fatty acids.

## Claims

### Claim 1

A method of producing a poultry egg with elevated amounts of n-3 fatty acids, said method comprising:
feeding poultry an effective amount of defatted microalgae under conditions effective for the poultry to produce an egg comprising about 300 to about 550 mg of n-3 fatty acids.

### Claim 2 (depends on 1)

The method of claim 1, wherein the defatted microalgae is selected from species of microalgae selected from Nannochloropsis or Desmodesmus.

### Claim 3 (depends on 1)

The method of claim 1, wherein the defatted microalgae comprises about 0.1% to about 50% of oil content compared to non-defatted microalgae.

### Claim 4 (depends on 1)

The method of claim 1, wherein the egg contains at least about 80 mg or more of a combination of docosahexanoic acid (DHA) and eicosapentaenoic acid (EPA).

### Claim 5 (depends on 1)

The method of claim 1, wherein the egg has a ratio of n-3:n-6 fatty acids greater than that of eggs produced by poultry not fed defatted microalgae under the conditions and decreased n-9 fatty acids compared to that of eggs produced by poultry not fed defatted microalgae under the conditions.

### Claim 6 (depends on 1)

The method of claim 1, wherein the poultry is fed defatted microalgae at the amount of about 1% to about 23% on a weight/weight basis of the poultry's total diet.

### Claim 7 (depends on 1)

The method of claim 1, further comprising feeding the poultry a non-microalgae source of n-3 fatty acids.

### Claim 8 (depends on 7)

The method of claim 7, wherein the non-microalgae source of n-3 fatty acids is flaxseed or flaxseed oil.

### Claim 9 (depends on 8)

The method of claim 8, wherein the flaxseed or flaxseed oil is fed to the poultry at an amount of about 0.5% to about 5% on a weight/weight basis of the poultry's total diet.

### Claim 10 (depends on 1)

The method of claim 1, wherein the poultry is a chicken.