螺旋藻对锦鲤生长和体色的影响

通过使用钝顶螺旋藻喂养锦锂试验，探讨了不同含量的螺旋藻干粉配合饵料以及活藻对锦鲁体色和生长的影响。试验结果表明在相同水温，光照和投喂量的条件下，随着螺旋藻干粉投喂量的增加，锦鲁体色越鲜艳，体重，体长也相应增加，其中鲜活螺旋藻对其色体，体长，体重影响最大。

EFFECT OF THE SPIRULINA FEED ON THE GROWTH AND BODY COLOR OF CRUCIAN CARP

The effects of the feed with different amount of the dried Spirulina platensis and fresh Spirulina platension on the growth and body color changes in Crucian carp have been studied.The result shows that the more the amount of Spirulina platensis in feed is, the longer and weightier the fish will be, and the brighter the body color of the fish will become. Feeding with fresh Spirulina platensis would make a better effect on increasing fish color and body weight than feeding with the Spirulina pander feed. The methods of quantitative measuring body color have also been studied. When the amount of Spirulina platensis in feed increased, black pigment cells and the OD value of the red pigment abstract with acetone in the fish scale are promoted. So it is realistic to count the black pigment cells and to analyse the OD value of the red pigment for distinguishing the fish color grades.