Effects of various levels of Spirulina on growth performance and pigmentation in goldfish (Carassius aurarus)

Songklanakarin Journal of Science and Technology (SJST)

关键词: Carassius auratus;    pigmentation;    carotenoid;    Spirulina;   

DOI  :  

来源: DOAJ

【 摘 要 】

The study was conducted to determine the optimum level of dried Spirulina in test diets for goldfish. The goldfish fed the test diet supplemented with dried Spirulina at a concentration of 1, 3 and 5% compared to the control diet without Spirulina. The color value (L, a and b) was measured by a colorsmeter after 6 weeks of feeding trial. The L value in the goldfish fed control diet was highest when compared to those fed all Spirulina supplemented diets. The a values in the goldfish fed control, 1, 3 and 5% Spirulina were 11.70, 18.87, 20.30 and 23.68, and the b values in the goldfish fed control, 1, 3 and 5% Spirulina were 18.36, 28.86, 31.74 and 35.53 respectively. Growth performance was highest in the goldfish fed test diet containing 3% dried Spirulina (p<0.05). The results showed the positive effect of 3-5% dried Spirulina for pigmentation in goldfish; however, the test diet supplemented with 3% Spirulina resulted in the highest growth performance in goldfish.

【 授权许可】

Unknown