Methods and compositions for improving growth of meat-type poultry
AssigneeNorth Carolina State University
InventorsJason C. H. Shih, Nasser Odetallah
Life of this patent
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Abstract
The present invention provides methods of improving growth performance, improving the efficiency of feed utilization, increasing feed digestibility, and decreasing mortality of immature and developing animals receiving animal feed. Methods of producing a crude keratinase enzyme extract and animal feed supplements for achieving the same are also provided.
Claims28
A method of growing meat-type poultry, comprising:
- feeding said meat-type poultry a corn-soybean meal feed as a poultry diet,
- said feed further comprising Bacillus licheniformis PWD-1 keratinase in an amount effective to enhance the weight gain of said meat-type poultry.
A method of growing meat-type poultry, comprising:
- feeding said meat-type poultry a corn-soybean meal feed as a starter diet,
- said feed further comprising Bacillus licheniformis PWD-1 keratinase in an amount effective to enhance the weight gain of said meat-type poultry.
A method of improving the efficiency of feed utilization of an animal feed in meat-type poultry, comprising:
- feeding said meat-type poultry a corn-soybean meal feed as a poultry diet,
- said feed further comprising Bacillus licheniformis PWD-1 keratinase in an amount effective to improve the efficiency of feed utilization of an animal feed in said meat-type poultry.
A method of increasing the digestibility of an animal feed in meat-type poultry, comprising:
- feeding said meat-type poultry a corn-soybean meal feed as a poultry diet,
- said feed further comprising Bacillus licheniformis PWD-1 keratinase an amount effective to increase the digestibility of an animal feed in said meat-type poultry.
A method of reducing mortality in meat-type poultry, comprising:
- feeding said meat-type poultry a corn-soybean meal feed as a starter diet,
- said feed further comprising Bacillus licheniformis PWD-1 keratinase in an amount effective to reduce mortality of said meat-type poultry.
An animal feed consisting essentially of soybean meal, corni meal, and keratinase.
Dependencies are inferred from the claim text.