배합사료 내 색소 원료에 따른 비단잉어 홍백(Cyprinus carpio) 치어의 성장과 체색 변화
Effect of Dietary Carotenoids Sources on Growth and Skin Color of Red- and White-colored Fancy Carp Cyprinus carpio var. koi
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초록
A feeding trial was conducted to investigate the effects of dietary carotenoids sources on growth and skin color of red- and white-colored fancy carp Cyprinus carpio var. koi . Nine experimental diets (designated as Con, CP, PA, SP, OP, MB, TO, BE and PO) were formulated to contain Carophyll Pink, red paprika, Spirulina , Opuntia, mandarin bark, tomato, beet and Porphyra , respectively. Each experimental diet was fed to two replicate groups of fish (22.9 g/ fish) to visual satiation three times a day for 8 weeks. Weight gain and feed efficiency of fish fed the diets containing Spirulina or Opuntia were higher than those of fish fed the control diet ( P< 0.05). The values of a* , L* and b* of fish skin were significantly changed by dietary carotenoids sources ( P <0.05). The a* values of fish fed the diets containing Carophyll Pink, red paprika and Spirulina were higher than those of fish fed other diets ( P< 0.05). The skin total carotenoids of fish fed the diets containing Spirulina and Opuntia were higher than those of others ( P >0.05). Based on the results of this study, it can be concluded that dietary inclusion of red paprika and Spirulina pacifica could increase the skin redness of red- and white-colored fancy carp.
Abstract
A feeding trial was conducted to investigate the effects of dietary carotenoids sources on growth and skin color of red- and white-colored fancy carp Cyprinus carpio var. koi . Nine experimental diets (designated as Con, CP, PA, SP, OP, MB, TO, BE and PO) were formulated to contain Carophyll Pink, red paprika, Spirulina , Opuntia, mandarin bark, tomato, beet and Porphyra , respectively. Each experimental diet was fed to two replicate groups of fish (22.9 g/ fish) to visual satiation three times a day for 8 weeks. Weight gain and feed efficiency of fish fed the diets containing Spirulina or Opuntia were higher than those of fish fed the control diet ( P< 0.05). The values of a* , L* and b* of fish skin were significantly changed by dietary carotenoids sources ( P <0.05). The a* values of fish fed the diets containing Carophyll Pink, red paprika and Spirulina were higher than those of fish fed other diets ( P< 0.05). The skin total carotenoids of fish fed the diets containing Spirulina and Opuntia were higher than those of others ( P >0.05). Based on the results of this study, it can be concluded that dietary inclusion of red paprika and Spirulina pacifica could increase the skin redness of red- and white-colored fancy carp.
참고문헌 (25)
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