Method for selecting ruminant feed composition using abomasal infusion

• US 5,503,112 A
• Filed: 06/22/1994
• Issued: 04/02/1996
• Est. Priority Date: 06/22/1994
• Status: Expired due to Fees

• Current Assignee: Land O'Lakes Incorporated
• Original Assignee: Land O'Lakes Incorporated
• Inventors: DeGregorio, Robert, Miller, Bill L., Luhman, Cindie M.
• Primary Examiner(s): Manahan, Todd E.
• Application Number:
  US08/263,600
• Time in Patent Office: 650 Days
• Field of Search: 119/174, 119/51.01, 426/635, 426/636, 426/807
• US Class Current: 119/174
• CPC Class Codes: A23K 20/142 Amino acids; Derivatives thereof
• CPC Class Codes: A23K 20/158 Fatty acids; Fats; Products containing oils or fats
• CPC Class Codes: A23K 50/10 for ruminants
• CPC Class Codes: Y10S 426/807 Poultry or ruminant feed

Abstract

The present invention includes a method of formulating ruminant feed to selectively change a composition of milk produced by the ruminant. The method includes providing a fistula directly into an abomasum of the ruminant. A selected feed component at a selected level is introduced directly into the abomasum through the ingress. The selected feed component thereby bypasses other portions of the ruminant'"'"'s stomach. The direct introduction of the selected feed component allows for changing a selected characteristic of the composition of milk. The composition of the milk corresponding to the selected feed component is then analyzed. The direct introduction of the selected feed component is repeated, if necessary, at other selected levels. The milk produced corresponding to the other selected levels is then analyzed. A selected quantity of the rumen inert feed component to be fed orally to the ruminant is determined by utilizing the analysis of the composition of the milk corresponding to the introduction of the selected feed component into the abomasum of the ruminant.

Claims

1. A method of formulating feed to be fed to a ruminant for selectively changing composition of milk produced by the ruminant, the method comprising:

providing a fistula directly into an abomasum of the ruminant;

introducing a selected feed component for changing a selected characteristic of the composition of the milk, the component being introduced at a selected level directly into the abomasum through the fistula thereby bypassing other portions of the ruminant'"'"'s stomach;

analyzing the composition of the milk corresponding to the selected feed component to obtain data values;

repeating further introduction of the feed component at other selected levels to obtain additional data values; and

determining a selected quantity of a rumen inert feed component to be fed orally to the ruminant by utilizing the data values obtained from the analysis of the composition of the milk corresponding to the introduction of the selected feed component into the abomasum of the ruminant.

2. The method of claim 1 wherein the selected feed component is selected to cause an increase in protein concentration in the milk produced by the ruminant.

3. The method of claim 1 wherein the selected feed component is selected to cause an increase in fat concentration in the milk produced by the ruminant.

4. The method of claim 1 wherein the selected feed component is selected to cause a decrease in fat concentration in the milk produced by the ruminant.

5. A method of formulating ruminant feed for obtaining a selected change in composition of milk produced by a ruminant, the method comprising the steps of:

infusing a selected feed component into an abomasum of the ruminant;

examining the milk composition at selected intervals corresponding to the infusion of the feed component into the abomasum to determine if the selected feed component produces a desired effect on the milk composition; and

making the feed component rumen inert so that the rumen inert feed component produces the desired effect to the milk composition when the rumen inert feed component is orally consumed by the ruminant.

6. The method of claim 5 wherein the selected feed component is selected to cause an increase in protein concentration in the milk produced by the ruminant.

7. The method of claim 5 wherein the selected feed component is selected to cause an increase in fat concentration in the milk produced by the ruminant.

8. The method of claim 5 wherein the selected feed component is selected to cause a decrease in fat concentration in the milk produced by the ruminant.