Abstract
Abstract 1. 1. Transfer of dietary carotenoids into eggs was examined by a feeding experiment of red sea bream broodstock. 2. 2. Levels of carotenoids incorporated in the eggs were approximately 60 μg/100 g irrespective of amounts and kinds of carotenoids supplemented to the diets. 3. 3. Only keto and non-esterified carotenoids were detected in the eggs. 4. 4. Canthaxanthin was transferred into eggs but not β-carotene. Astaxanthin esters were converted largely to non-esterified astaxanthin and partly to doradexanthin. It was presumed that idoxanthin present in the eggs was derived from non-esterified astaxanthin in the diets.
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