초록

The present invention relates to use of a tall oil fatty acid in the modulation of microbial population of the animal digestive tract. The invention further relates to use of a feed supplement and a feed composition comprising tall oil fatty acid.

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1. A method of modulation of a microbial population of an animal digestive tract comprising: (a) feeding tall oil fatty acid to the animal, wherein the tall oil fatty acid comprises 1-10% (w/w) resin acids, wherein the tall oil fatty acid is produced by distillation of crude tall oil to form distill

1. A method of modulation of a microbial population of an animal digestive tract comprising: (a) feeding tall oil fatty acid to the animal, wherein the tall oil fatty acid comprises 1-10% (w/w) resin acids, wherein the tall oil fatty acid is produced by distillation of crude tall oil to form distilled tall oil, and by further refinement of the distilled tall oil to form the tall oil fatty acid; and(b) modulating the microbial population in the animal digestive tract. 2. The method of modulation according to claim 1, wherein the tall oil fatty acid comprises 2-9% (w/w) resin acids. 3. The method of modulation according to claim 1, wherein the tall oil fatty acid comprises 5-9% (w/w) resin acids. 4. The method of modulation according to claim 1, wherein the tall oil fatty acid comprises 90-98% (w/w) fatty acids. 5. A method of modulation of a microbial population of an animal digestive tract comprising: (a) feeding a feed supplement to the animal wherein the feed supplement comprises tall oil fatty acid, wherein the tall oil fatty acid comprises 1-10% (w/w) resin acids, wherein the tall oil fatty acid is produced by distillation of crude tall oil to form distilled tall oil, and by further refinement of the distilled tall oil to form the tall oil fatty acid; and(b) modulating the microbial population in the animal digestive tract. 6. The method of modulation according to claim 5, wherein the tall oil fatty acid comprises 2-9% (w/w) resin acids. 7. The method of modulation according claim 5, wherein the tall oil fatty acid is absorbed into a carrier material. 8. A method of modulation of a microbial population of an animal digestive tract comprising: (a) feeding a feed composition to the animal wherein the feed composition comprises a feed supplement comprising tall oil fatty acid, wherein the tall oil fatty acid comprises 1-10% (w/w) resin acids, wherein the tall oil fatty acid is produced by distillation of crude tall oil to form distilled tall oil, and by further refinement of the distilled tall oil to form the tall oil fatty acid; and(b) modulating the microbial population in the animal digestive tract. 9. The method of modulation according to claim 8, wherein the feed composition comprises the feed supplement in an amount of 0.00001-0.5% (w/w) of dry weight of total amount of the feed. 10. The method of modulation according to claim 8 wherein the feed composition comprises the feed supplement in an amount of 0.0005-0.1% (w/w) of dry weight of total amount of the feed. 11. The method of modulation according to claim 8, wherein the tall oil fatty acid comprises 2-9% (w/w) resin acids. 12. The method of modulation according to claim 8, wherein the tall oil fatty acid comprises 5-9% (w/w) resin acids. 13. The method of modulation according to claim 8, wherein the modulation comprises a modulation of microbial metabolism from homofermentative toward heterofermentative metabolic route. 14. The method of modulation according to claim 1, wherein the modulation comprises a modulation of microbial metabolism from homofermentative toward heterofermentative metabolic route. 15. The method of modulation according to claim 5, wherein the tall oil fatty acid comprises 5-9% (w/w) resin acids. 16. The method of modulation according to claim 5, wherein the modulation comprises a modulation of microbial metabolism from homofermentative toward heterofermentative metabolic route.