The Effect of Astaxanthin and β-carotene on the Colour of the Kissing Gourami (Helostomatemminckii)
Keywords:
astaxanthin, β-carotene, colour scale, kissing gouramiAbstract
In this study, we have investigated the effects of astaxanthin and b-carotene on the skin colour of fish Kissing Gourami (Helostomatemminckii). 80 fishes were randomly selected into 2 groups (40 each group). The control group fish were fed with standard flake feed. Astaxanthin (100 mg/kg) and β-carotene (150 mg/kg) were added to the standard diet for experimental group. Fish skin colour was compare with colour scale. Colour change was recorded weekly for the 12 weeks of experiment. First colour change was record in 6th week in control group (light pink). No other change of colour was determinate. In experimental group was first colour change in 4th week (light pink) and the maximal influence of astaxanthin and β-carotene was recorded in 10th week (light red). Therefore, it was determined that these pigment sources have an effect on the colour of gourami fish.
References
Gouveia, L., Gomes, E., Empis, J., Use of Chlorella vulgaris in diets for rainbow trout to enhance pigmentation of muscle. J Appl Aqua-Cult., 1997, 7, 61-70.
Raymundo, A., Gouveida, L., Batista, A. P., Empis, J., Sousa, I., Fat mimetic capacity of Chlorella vulgaris biomas in oil-in-water food emulsions stabilized by pea protein. Food Res Int., 2005, 38, 961-965.
Sales, J., Janssens, P. X., Nutrient requirements of ornamental fish. Aquat Living Resour., 2003, 16, 533-540.
Steven, D. M., Studies on animal carotenoids. I. Carotenoids of the brown trout (Salmotrutta Linn.). J. Exp. Biol., 1948, 25, 369.
Goodwin, T. W., The Biochemistry of the Carotenoids, Chapman & Hall, 1984, vols. 1, 2
Torrissen, O. J., Hardy, R. W., Shearer, K. D., Scott, T. M., Stone, F. E., Effects of dietary canthaxanthin level and lipid level on apparent digestibility coefficients for canthaxanthin in rainbow trout (Oncorhynchus mykiss). Aquaculture, 1990, 88, 351-362.
Ako, H., Tamaru, C. S., Are feeds for food fish practical for aquarium fish? Intl. Aqua Feeds, 1999, 2, 30-36.
Chatzifotis, S., Pavlidis, M., Donate Jimenso, C., Vardanis, G., Sterioti, A., Divanach, P. The effect of different carotenoid sources on skin coloration of cultured red porgy (Pagruspagrus). Aquaculture Research, 36, 2005, 1517-1525.
