Claims
- 1. A method of increasing the feed efficiency of pigs, chickens and turkeys comprising administering an effective amount of an enzyme fraction obtained by culturing Streptomyces griseus strain NRRL 5747 in a fermentation medium to obtain a fraction having the following characteristics:
- (a) 1 g. of the enzymatic fraction represents about 500 units, 1 unit being that amount of enzyme fraction which when dissolved in 1 ml. of water reduces the viscosity of 1 ml. of prepared gastric mucin by 50% in 2 hours at 39.degree. C.;
- (b) said fraction is insoluble in acidic acetone;
- (c) centrifuged broth from the fermentation medium contains 0.3-1.0 units of enzyme fraction/mg. broth;
- (d) storage of the dry enzyme fraction at 109.degree. F. for 28 weeks or at 122.degree. F. for 8 weeks results in less than 10% activity decrease.
- 2. A method as in claim 1 wherein the fraction is administered in the form of a premix suitable for addition to animal feed.
- 3. A method as in claim 1 wherein the fraction is combined with the animal feed.
- 4. A method as in claim 1 wherein the fraction is administered to chickens.
- 5. A method as in claim 1 wherein the fraction is administered to turkeys.
- 6. A method as in claim 1 wherein the fraction is administered to pigs.
- 7. A method of increasing the feed efficiency of pigs, chickens and turkeys comprising administering an effective amount of a broth obtained by culturing Streptomyces griseus strain NRRL 5747 in a fermentation medium.
Parent Case Info
This Application is a continuation-in-part of application Ser. No. 726,632, filed Sept. 27, 1976 now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3868448 |
Hahn et al. |
Feb 1975 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
726632 |
Sep 1976 |
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