Method and composition for maintaining animals on a keratin-containing diet
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United States of America Patent
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Feb 16, 1993
Grant Date -
N/A
app pub date -
Mar 15, 1991
filing date -
Mar 15, 1991
priority date (Note) -
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Abstract
Methods and compositions for maintaining animals on a diet containing keratin as a source of protein are disclosed. The method comprises feeding an animal a carbohydrate source and a first protein source, the first protein source comprising keratin and a keratinase capable of hydrolyzing the keratin. A composition of the present invention is an animal feed comprising a carbohydrate source and a first protein source, the first protein source comprising keratin and a keratinase capable of hydrolyzing the keratin. A preferred keratin for practicing the present invention is ground feather, and a preferred keratinase for practicing the invention is obtained from Bacillus licheniformis strain PWD-1.
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