| 摘要 |
A PET bird feed additives in the form of fine granules obtained by mixing 100 parts by weight of a Dunaliella alga powder with 15 to 50 parts by weight of cyclodextrin under stirring and to 100 parts by weight of the mixed adsorbate thus obtained adding an antioxidant and a binder; a PET bird feed obtained by blending 5 to 15 parts by weight of the granules thus obtained with a common PET bird feed; and processes for producing them. In the PET bird feed additive of the present invention, the Dunaliella alga powder is in the form of a mixed adsorbate together with cyclodextrin and thus beta -carotene contained in the Dunaliella alga can be stably sustained and effectively utilized. Further, the offensive odor characteristic to the algae can be removed. Furthermore, the PET bird feed additive of the present invention, which is in the form of fine granules, can be easily blended with a common PET bird feed. |
