Effects of Dietary Carotenoids on the Nuptial Color of the Bitterling (Rhodeus uyekii)

Carotenoids 첨가 사료가 각시붕어 (Rhodeus uyekii)의 체색에 미치는 영향

  • KIM Hwa Sun (Department of Aquaculture, Pukyong National University) ;
  • KIM Youhee (Department of Aquaculture, Pukyong National University) ;
  • CHO Sung Hwoan (Department of Aquaculture, Pukyong National University) ;
  • JO Jae-Yoon (Department of Aquaculture, Pukyong National University)
  • Published : 1999.05.01

Abstract

The body color of fish fed were improved to be clearer by feeding the bitterling an artificial diet containing different carotenoids. The possibilities of using the bitterling, Rhodeus uyekii, an aboriginal fish of Korea, were studied by feeding the experimental diets supplemented with the various carotenoids (astaxanthin, lutein, and $\beta$-carotene). Amount of total carotenoids in the groups of fish fed by supplementation carotenoids were relatively higher than the control group of fish fed by no supplementation carotenoids. Especially, the group of fish fed by lutein supplementation diet showed most clarity in body color. The group of fish fed by astaxanthin supplementation diet showed the highest growth while the group of fish fed by lutein or $\beta$-carotene supplementation diet showed no significant different comparing to the control group of fish. The results from this study indicated that the bitterling could be a new ornamental fish as long as provided with the proper diet and culture condition.

한국 특산어인 각시붕어 (Rhodeus uyekii)를 이용하여 혼인색과 채색의 인위적인 발현을 통해 관상어로서의 가능성을 조사하였다. 사료 내에 astaxanthin, lutein 및 $\beta$-carotene을 첨가하여 체색 개선효과를 알아본 결과, 각 실험구의 총 carotenoids 함량은 무첨가구인 대조구에 비해 carotenoids를 첨가한 모든 실험구에서 높게 나타났으며, 특히 lutein을 첨가한 실험구에서 높게 나타나 체색선명화 효과가 가장 큰 것으로 나타났다. 성장률은 astaxanthin을 첨가한 실험구에서 가장 높았으며, lutein과 $\beta$-carotene을 첨가한 실험구에서는 대조구와 유의적인 차이를 보이지는 않았다. 본 실험의 결과 carotenoids를 함유하고 있는 사료와 적절한 사육 조건을 갖춘다면, 우리에게 친근한 여러 종류의 어류를 새로운 관상어로 개발 할 수 있으리라 생각된다.

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