Use of tall oil fatty acid
The present invention relates to use of a tall oil fatty acid in enhancing rumen fermentation and/or lowering rumen methane production. The invention further relates to use of a feed supplement and a feed composition comprising tall oil fatty acid.
1. A method of enhancing rumen fermentation and/or lowering rumen methane production, the method comprising:
administering to an animal a feed and 0.00001-0.5% of a feed supplement by weight of the feed, the feed supplement comprising a tall oil fatty acid, wherein the tall oil fatty acid comprises 1-10 wt-% resin acids.
2. The method according to claim 1 , wherein the tall oil fatty acid comprises 2-9% (w/w) resin acids.
3. The method according to claim 1 , wherein the tall oil fatty acid comprises 5-9% (w/w) resin acids.
4. The method according to claim 1 , wherein the tall oil fatty acid comprises 90-98% (w/w) fatty acids.
5. A tall oil fatty acid wherein the tall oil fatty acid is dried.
6. The method according to claim 1 , wherein the tall oil fatty acid is absorbed into a carrier material.
7. The method according to claim 1 , wherein the feed supplement is administered in an amount of 0.0005-0.1% (w/w) of dry weight of the feed.
8. The method of claim 1 , wherein the tall oil fatty acid is dosed at 2 to 50 mg/g.
9. The method of claim 1 , wherein the feed supplement consists of tall oil fatty acid.