Probiotic for poultry or cud-chewing animals

Patent metadata

Field	Value
Publication number	US-12219974-B2
Application number	US-201917055354-A
Country	US
Kind code	B2
Filing date	May 14, 2019
Priority date	May 15, 2018
Publication date	Feb 11, 2025
Grant date	Feb 11, 2025

Abstract

An active yeast adapted to weak organic acids and to the use thereof for poultry or cud-chewing animals. Also, a probiotic for poultry or cud-chewing animals, including an active yeast adapted to weak organic acids. Further, the use of such a yeast for improving the zootechnical performances of poultry and to the use thereof in a probiotic and/or food for poultry. Furthermore, the use of such a yeast for improving the physico-chemical and fermentative parameters of the rumen of cud-chewing animals, and to the use thereof in a probiotic and/or food for cud-chewing animals. In addition, a yeast for use in the prevention and/or the treatment of digestive disorders in cud-chewing animals and particularly in the prevention of acidosis in cud-chewing animals.

First claim

The invention claimed is:

1. A method for improving the growth and weight gain performances and the consumption index (CI) of poultry, comprising administering to a poultry animal an effective amount of a Saccharomyces cerevisiae active yeast adapted to a weak organic acid chosen from propionic acid and its salts, wherein:
said adapted Saccharomyces cerevisiae active yeast is obtained by the adaptation of a Saccharomyces cerevisiae active yeast derived from a strain chosen from the strains deposited at the CNCM under number I-5128 and I-5131 on Aug. 31, 2016, to the presence of a weak organic acid carried out during the final hours of a final multiplication stage by addition of 0.1 g to 10 g of weak organic acid and/or salts thereof, per liter of culture medium, so as to obtain between 1500 and 3000 ppm of weak organic acid by weight in the culture medium;
a ratio of a volume of CO 2 given off for 2 hours of culture from said adapted Saccharomyces cerevisiae active yeast derived from the strain chosen from I-5128 and I-5131 to a volume of CO 2 given off for 2 hours of culture from a non-adapted Saccharomyces cerevisiae active yeast derived from the strain chosen from I-5128 and I-5131 is greater than or equal to 1; and
said adapted Saccharomyces cerevisiae active yeast has an increased tolerance to a weak organic acid by virtue of a first exposure to said weak organic acid during the final multiplication stage such that said adapted Saccharomyces cerevisiae active yeast has a growth and a fermentative capacity of that are not inhibited when said adapted Saccharomyces cerevisiae active yeast is in the presence of said weak organic acid for at least a second exposure.

2. The method as claimed in claim 1 , wherein the administration of the adapted Saccharomyces cerevisiae active yeast is made via a feed comprising the adapted Saccharomyces cerevisiae active yeast or a probiotic comprising the adapted Saccharomyces cerevisiae active yeast.

3. The method as claimed in claim 1 , wherein the poultry receives between 10 6 and 10 11 CFU of adapted active yeast per kilogram of feed per day.

4. The method as claimed in claim 1 , wherein the adapted Saccharomyces cerevisiae active yeast is adapted to calcium or sodium salts of propionic acid.

5. The method as claimed in claim 1 , wherein the adapted Saccharomyces cerevisiae active yeast is adapted to calcium propionate.

6. The method as claimed in claim 1 , wherein the adapted Saccharomyces cerevisiae active yeast is in dry form.

7. The method as claimed in claim 1 , wherein the adapted Saccharomyces cerevisiae active yeast is in the form of granules, microspherules, meal, or in a water-dispersible form.

8. The method as claimed in claim 1 , wherein the adapted Saccharomyces cerevisiae active yeast is in a feed for poultry.

9. The method as claimed in claim 1 , wherein the poultry is a poultry receives between 10 9 and 10 10 CFU of adapted Saccharomyces cerevisiae active yeast per kilogram of feed per day.

Assignees

• Lesaffre & Cie

Inventors

• Auclair Eric
• Julien Christine
• Marden Jean-Philippe

Classifications

• C12R2001/865

  Saccharomyces cerevisiae · CPC title

• C12N1/185

  Saccharomyces isolates · CPC title

• A23K50/75

  for poultry · CPC title

• A23K50/10

  for ruminants · CPC title

• A23V2002/00

  Food compositions, function of food ingredients or processes for food or foodstuffs · CPC title