However, few reports exist that evaluate the performance
of male goldfish fed diets differing in astaxanthin and b-carotene [1]. The objective of this study was to
determine the effect of different dietary levels of astaxanthin
and b-carotene on the reproductive performance of
male goldfishes. In this experiment, the role of astaxanthin
and b-carotene in goldfish sperm and their effects on
reproductive efficiency are studied.