Hoffmann-La Roche Inc.

Roche Vitamins Inc.

Katharina Schiedt

Urs O Hengartner

Paul Kreienbuhl

Kurt Bernhard

Jiri Broz

A method of pigmenting certain parts and products of poultry, fish and crustacea by including in the feed of the pertinent animal one or more of the carotenoids 2'-dehydroplectaniaxanthin, desmethylspheroidenone, spheroidenone, 1-hydroxy-3,4-didehydro-1,2-dihydro-.psi.,.psi.-caroten-2-one, 5'-hydroxy-5',6'-dihydro-4'-apo-.beta.-caroten-6'-one, 1'-hydroxy-3',4'-didehydro-1',2'-dihydro-.beta.,.psi.-carotene-4,2'-dione and 5'-hydroxy-5',6'-dihydro-4'-apo-.beta.-carotene-4,6'-dione, poultry, fish and crustacea feeds for pigmenting certains parts and products of these animals, beadlets and premixes for adding to poultry, fish and crustacea feeds, and the carotenoids 1-hydroxy-3,4-didehydro-1,2-dihydro-.psi.,.psi.-caroten-2-one, 5'-hydroxy-5',6'-dihydro-4'-apo-.beta.-caroten-6'-one, 1'-hydroxy-3',4'-didehydro-1',2'-dihydro-.beta.,.psi.-carotene-4,2'-dione and 5'-hydroxy-5',6'-dihydro-4'-apo-.beta.-carotene-4,6'-dione.

Growing community of inventors

Arlesheim, Switzerland

Katharina Schiedt