Phytase-containing animal food and method
AssigneePhytex, LLC
InventorsDouglas M. Webel, Donald E. Orr, JR., Frank E. Ruch, JR., Xingen Lei
Life of this patent
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Abstract
A method is described for improving the nutritional value of a foodstuff comprising a source of myo-inositol hexakisphosphate by feeding the foodstuff in combination with a phytase expressed in yeast. The method comprises the step of feeding the animal the foodstuff in combination with a phytase expressed in yeast wherein the phytase can be selected from the group consisting of AppA1, AppA2 and a site-directed mutant of AppA. The invention also enables reduction of the feed to weight gain ratio and an increase bone mass and mineral content of an animal. A foodstuff and a feed additive comprising AppA2 or a site-directed mutant of AppA are also described.
Claims22
1-96. (canceled)
A method of reducing the feed to weight gain ratio of a monogastric animal by feeding the animal a foodstuff wherein the foodstuff comprises myo-inositol hexakisphosphate, the method comprising the step of
- feeding to the animal the foodstuff in combination with an E. coli 6-phytase expressed in yeast, wherein the feed to weight gain ratio of the animal is reduced.
A method of reducing the feed to weight gain ratio of an avian species by feeding the avian species a foodstuff wherein the foodstuff comprises myo-inositol hexakisphosphate, the method comprising the step of
- feeding to the avian species the foodstuff in combination with an E. coli 6-phytase expressed in yeast, wherein the avian species is fed the foodstuff in combination with from about 50 to about 2000 units of the phytase expressed in yeast per kilogram of the foodstuff, and wherein the feed to weight gain ratio of the animal is reduced.
Dependencies are inferred from the claim text.