Use of UVE bacteria for growth promotion in animals
The present invention relates to the use of F4 + non-pathogenic Escherichia coli strains to promote growth in an animal. The present invention also relates to the use of such strains to homogenize growth among a herd of animals. More specifically, the animal(s) of interest in the present invention are those wherein growth promotion or growth homogenization are desired goals, such as animals reared for meat production. The present invention further relates to a method for promoting growth of an animal as well as a method for homogenizing growth among a herd of animals.
1. A composition for animal consumption, comprising a live non-pathogenic Escherichia coli strain expressing F4 adhesins and a feed acceptable carrier, the strain being in lyophilized form and in an amount sufficient for administration of at least 5×10 7 CFU per animal for promoting weight gain of the animal.
2. A composition for animal consumption according to claim 1 , the strain being in an amount sufficient for administration of from 5×10 7 CFU to about 5×10 9 CFU per animal.
3. A composition for animal consumption according to claim 1 , the strain being in an amount sufficient for administration of about 1×10 9 CFU per animal.
4. A composition for animal consumption according to claim 1 , the strain being in an amount sufficient for administration of about 5×10 9 CFU per animal.
5. A composition for animal consumption according to claim 1 , wherein the animal is a pig.
6. A composition for animal consumption according to claim 1 , wherein the animal is a post-weaning pig.
7. A composition for animal consumption according to claim 1 , wherein the pig is aged from about 10 to about 28 days old.
8. A composition for animal consumption according to claim 1 , wherein the pig is aged of 17 days old.
9. A composition for animal consumption according to claim 1 , wherein the strain is the Escherichia coli strain deposited at the International Depository Authority of Canada (IDAC) on Jan. 21, 2005 under accession number IDAC 210105-01.
10. A composition for animal consumption comprising a live non-pathogenic Escherichia coli strain and a feed acceptable carrier, the strain being in lyophilized form and expressing F4 adhesins as a stable strain as determined using a slide agglutination test, and the strain being in an amount sufficient for promoting weight gain in an animal.
11. A composition for animal consumption according to claim 10 , the strain being in an amount sufficient for administration of at least 5×10 7 CFU per animal.
12. A composition for animal consumption according to claim 10 , the strain being in an amount sufficient for administration of from 5×10 7 CFU to about 5×10 9 CFU per animal.
13. A composition for animal consumption according to claim 10 , the strain being in an amount sufficient for administration of about 1×10 9 CFU per animal.
14. A composition for animal consumption according to claim 10 , the strain being in an amount sufficient for administration of about 5×10 9 CFU per animal.
15. A composition for animal consumption according to claim 10 , wherein the animal is a pig.
16. A composition for animal consumption according to claim 10 , wherein the animal is a post-weaning pig.
17. A composition for animal consumption according to claim 10 , wherein the pig is aged from about 10 to about 28 days old.
18. A composition for animal consumption according to claim 10 , wherein the pig is aged of 17 days old.
19. A composition for animal consumption according to claim 10 , wherein the strain is the Escherichia coli strain deposited at the International Depository Authority of Canada (IDAC) on Jan. 21, 2005 under accession number IDAC 210105-01.