The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 1993
Filed:
Nov. 25, 1991
Applicant:
Inventor:
Yoshio Tanaka, Gifu-shi, Gifu-ken, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A23K / ;
U.S. Cl.
CPC ...
426-1 ; 426 72 ; 426454 ; 426518 ; 426643 ; 426805 ;
Abstract
A fish feed additive is used which contains .beta.-carotene containing Dunaliella algae powder stabilized against oxidation and migration into the water. The fish feed is prepared by mixing 100 parts by weight of a Dunaliella algae powder with 15-50 parts by weight of a cyclodextrin while stirring. The final fish feed is obtained by blending 10 parts by weight of this additive with 200-500 parts by weight of a common fish feed. The fish feed additive is in the form of dry fine granules. The fish feed additive effectively promotes growth and delivers .beta.-carotene to the fish.