| 摘要 |
A process for feeding a companion animal such as a dog or cat a diet containing an effective amount of beta -carotene to enhance immune response and improve the overall health of the animal is provided. Preferably, the diet includes from about 1 to about 50 mg/day of beta -carotene (from about 6 to about 315 mg beta -carotene/kg diet). Such a diet provides sufficient beta -carotene to be absorbed by the animal and supplied to the blood and blood leukocytes and neutrophils in the animal.
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