Phytase-containing animal food and method
AssigneesPhytex, LLC, Cornell Research Foundation, Inc.
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.
Claims28
1-43. (canceled)
A method of improving the nutritional value of a foodstuff consumed by a monogastric animal by increasing the bone mass and mineral content of the animal 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
- and
- wherein the bone mass and mineral content of the animal is increased.
67-93. (canceled)
A method of improving the nutritional value of a foodstuff consumed by an avian species by increasing the bone mass and mineral content of the avian species 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 bone mass and mineral content of the avian species is increased.
A method of improving the nutritional value of a foodstuff consumed by an avian species 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 number of eggs laid and the weight of the eggs laid by the avian species is increased.
Dependencies are inferred from the claim text.