IP Library Granted Patent US 7,964,409
Granted Patent B1
US 7,964,409 · App. 12/027,076 · Granted Jun 21, 2011

Detecting hypocalcemia using bovine nose sweat

Assignee: Louisiana Tech Research Foundation; a Division of Louisiana Tech University Foundation, inc.
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Quick Facts
Patent No.
US 7,964,409
App. No.
12/027,076
Granted
Jun 21, 2011
Kind
B1
Abstract

The invention is collecting nose sweat and testing the nose sweat for levels of calcium. Testing may be done using standard laboratory procedures for calcium detection, or may be done cow-side using a suitable test for calcium levels, such as a water hardness test kit or a suitable test strip.

Claims (17)

1. A method of diagnosing hypocalcemia in cattle including the steps of (a) collecting nose sweat from a cow; (b) testing said collected sweat for a calcium level, and (c) correlating said tested calcium level with the presence or absence of hypocalcemia.

2. The method of claim 1 where said calcium level comprises a dissociated calcium level.

3. The method of claim 1 where said calcium level comprises a total calcium level.

4. The method of claim 1 wherein said collection step is performed by using a collecting medium.

5. The method of claim 4 where said collecting medium comprises a cellulose fiber product or a polymer material product.

6. The method of claim 1 wherein said step of testing comprises testing said liquid sample using photometric determination methods.

7. The method of claim 1 wherein said step of testing said nose sweat for a calcium level is performed by said collecting medium.

8. The method of claim 7 wherein said collecting medium is a test strip having a color changing agent positioned thereon, said agent changing color in response to calcium levels is said collected sweat.

9. The method of claim 1 wherein said step of testing comprises testing said collected sample with a test strip having a color changing agent positioned thereon, said agent changing color in response to calcium levels is said collected sweat.

10. The method of claim 1 wherein said cow is a dairy cow.

11. The method of claim 1 wherein said tested calcium levels is correlated as a positive indicator for the presence of hypocalcemia when said tested calcium level indicates a level less than or equal to about 80 ppm calcium level.

12. The method of claim 1 wherein said tested calcium level is correlated as a positive indicator for hypocalcemia when said tested calcium level indicates a level less than or equal to about 70 ppm total calcium level.

13. The method of claim 8 wherein said color changing agent includes Alazarin Complexone, Eriochrome Blue, Cresolphthalein Complexone, or Thymolphthalein Complexone, or the salts thereof.

14. The method of claim 8 wherein said strip further includes a magnesium binding agent and a buffer.

15. The method of claim 1 wherein said calcium level is an ionized calcium level.

16. The method of claim 1 wherein said testing is performed at cow-side.

17. The method of claim 1 wherein said tested calcium levels is correlated as an indicator for the absence of hypocalcemia when said tested calcium level indicates a level greater than about 85 ppm total calcium level.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 6, 2016
From: LOUISIANA TECH RESEARCH FOUNDATION; A DIVISION OF LOUISIANA TECH UNIVERSITY FOUNDATION, INC.
To: LOUISIANA TECH RESEARCH CORPORATION
Reel/Frame 040537/0727 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE FROM LOUISIANA TECH UNIVERSITY FOUNDATION, INC. PREVIOUSLY RECORDED ON REEL 021016 FRAME 0974. ASSIGNOR(S) HEREBY CONFIRMS THE LOUISIANA TECH RESEARCH FOUNDATION; A DIVISION OF LOUISIANA TECH UNIVERSITY FOUNDATION, INC.. Recorded Apr 11, 2011
From: KENNEDY, GARY ALAN
To: LOUISIANA TECH RESEARCH FOUNDATION; A DIVISION OF LOUISIANA TECH UNIVERSITY FOUNDATION, INC.
Reel/Frame 026107/0034 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 29, 2008
From: KENNEDY, GARY ALAN
To: LOUISIANA TECH UNIVERSITY FOUNDATION, INC.
Reel/Frame 021016/0974 →
Continuity (2)
Provisional Application 60889879 · Feb 14, 2007
Provisional Application 60888595 · Feb 7, 2007