US4959223A
Expired / Lapsed
US
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Ruminant animal feedstuffs
Assignee: BP Chemicals Ltd
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Filing: 1989-04-20
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Granted: 1990-09-25
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Expires: 2009-04-20
Abstract
Abstract This invention relates to a supplement to ruminant animal feedstuffs to improve the milk production and milk protein yield of ruminants e.g. cows. The supplement comprises a basic salt of propionic acid having a pH of 8-14.
Inventors
- 👤 Johannes A. C. Van Ooyen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:02
CPC Classifications
A; A23; A23K; A23K50/00; A23K50/10; A23K20/00; A23K20/10; A23K20/105; A23K20/20; A23K20/22; Y; Y10; Y10S; Y10S426/00; Y10S426/807
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
28 words
A ruminant animal feedstuff comprising a feed concentrate and an amount of a basic salt of propionic acid having a pH of 8-14 effective to improve milk production.
Claim 2
Dependent Claim
28 words
A ruminant animal feedstuff comprising a feed concentrate and an amount of a basic salt of propionic acid having a pH of 8-14 effective to improve milk production.
Claim 3
Dependent Claim
21 words
A feedstuff according to claim 1 wherein the salt contains cations selected from ammonium, Group I and Group II metal ions.
Claim 4
Dependent Claim
27 words
A feedstuff according to claim 1 wherein the salt is a basic propionate salt of ammonium, sodium, potassium, calcium or magnesium having a pH value of 8-12.
Claim 5
Dependent Claim
17 words
A feedstuff according to claim 1 wherein the basic propionate salt has an excess of hydroxyl ions.
Claim 6
Dependent Claim
31 words
A feedstuff according to claim 1 wherein the basic propionate salt is added to a feed concentrate in an amount from 0.5-50% w/w of the concentrate fed to the ruminant animal.
Claim 7
Dependent Claim
27 words
A feedstuff according to claim 1 wherein the basic propionate salt is present in an amount from 0.1-20% w/w of the total dry matter in the feed.
Claim 8
Independent Claim
34 words
A method of preparing a basic propionate salt which comprises mixing sodium hydroxide with magnesium oxide and/or calcium oxide and then reacting the mixture so formed with less than molar equivalent of propionic acid.
Claim 9
Independent Claim
34 words
A method of preparing a basic propionate salt which comprises mixing sodium hydroxide with magnesium oxide and/or calcium oxide and then reacting the mixture so formed with less than molar equivalent of propionic acid.
Claim 10
Independent Claim
36 words
A method of supplementing the diet of a ruminant animal which comprises orally administering to said animal an amount of a basic salt of propionic acid having a ph of 8-14 effective to improve milk production.
Claim 11
Independent Claim
36 words
A method of supplementing the diet of a ruminant animal which comprises orally administering to said animal an amount of a basic salt of propionic acid having a ph of 8-14 effective to improve milk production.
Claim 12
Dependent Claim
26 words
A method as defined in claim 8 wherein said salt is a basic salt of ammonium, potassium, calcium or magnesium having a pH value of 8-12.
Claim 13
Dependent Claim
22 words
A method as defined in claim 9 wherein the said salt has an excess of hydroxyl ions based on the cations available.
Claim 14
Dependent Claim
22 words
A method as defined in claim 8 wherein the said salt has an excess of hydroxyl ions based on the cations available.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-24 | 1994-03-26 | 1994-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-24 | 1998-03-26 | 1998-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-24 | 2002-03-26 | 2002-09-25 | $7700.00 | Window Closed / Lapsed |