US4738853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food production
Assignee: Efamol Ltd
•
Filing: 1985-04-04
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Granted: 1988-04-19
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Expires: 2005-04-04
Abstract
Abstract A method of maintaining hens or other domesticated birds for egg production, comprises giving the birds feed supplemented with γ-linolenic acid or one or more higher acids in the n-6 series, in the form of the free acid or as an ester, amide, phospholipid, salt or other physiologically acceptable derivative convertible in the bird's body to, or having the effect of, the free acid.
Inventors
- 👤 David F. Horrobin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:43
CPC Classifications
A; A23; A23K; A23K50/00; A23K50/70; A23K50/75; A23K20/00; A23K20/10; A23K20/158; Y; Y10; Y10S; Y10S426/00; Y10S426/807
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
138 words
A method of improving the egg production of domesticated birds in respect of egg size, proportion or total cholesterol in the eggs, or proportion of unsaturated essential fatty acids in the eggs, comprising (i) feeding the birds a feed supplemented with one or more of gamma-linolenic acid and higher acids in the n-6 series, in the form of the free acid or as an ester, amide, phospholipid, salt or other physiologically acceptable derivative convertible in the bird's body to, or having the effect of, the free acid, the supplement, calculated as gamma-linolenic acid, constituting 0.01% to 10% by weight of the feed, and (ii) collecting the eggs produced by the birds whereby the egg size and proportion of unsaturated essential fatty acids in the eggs is increased and the proportion or total cholesterol in the eggs is decreased.
Claim 2
Independent Claim
138 words
A method of improving the egg production of domesticated birds in respect of egg size, proportion or total cholesterol in the eggs, or proportion of unsaturated essential fatty acids in the eggs, comprising (i) feeding the birds a feed supplemented with one or more of gamma-linolenic acid and higher acids in the n-6 series, in the form of the free acid or as an ester, amide, phospholipid, salt or other physiologically acceptable derivative convertible in the bird's body to, or having the effect of, the free acid, the supplement, calculated as gamma-linolenic acid, constituting 0.01% to 10% by weight of the feed, and (ii) collecting the eggs produced by the birds whereby the egg size and proportion of unsaturated essential fatty acids in the eggs is increased and the proportion or total cholesterol in the eggs is decreased.
Claim 3
Dependent Claim
18 words
A method according to claim 1 wherein the feed is supplemented with Evening Primrose or other seed residue.
References Cited (Backward Citations)
GB624624A
Cited
GB852189A
Cited
FR1476511A
Cited
GB1356002A
Cited
GB1446431A
Cited
JPS5157565A
Cited
US4128640A
Cited
GB2084172A
Cited
EP0092976A2
Cited
EP0157619A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-19 | 1991-10-19 | 1992-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-19 | 1995-10-19 | 1996-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-19 | 1999-10-19 | 2000-04-19 | $7700.00 | Window Closed / Lapsed |