Effcets of three kinds of Chinese Herb Additives on Growth Performance and flesh quality in Juvenile Japanese Flounder (Paralichthys olivaceus)

• 1、Life Science and Technology Institute,Dalian Fisheries University,Dalian
• 2、Life Science and Technology Institute,Dalian Fisheries University,Dalian
• 3、Life Science and Technology Institute-Dalian Fisheries University

Abstract：Juvenile Japanese flounder (Paralichthys olivaceus) (mean body weight: 3.77±1.20 g, body length: 6.45～11.14cm ) were stocked into 24 0.1-m3 tanks at a rate of 10 fish per tank and fed pelleted feed containing crude protein of 36% (L36%) and 50%(H50%) for 36 days at water temperature of 22±1℃, respectively. In the treatments, 3 kinds of Chinese herbs (1、2、3) prescription were supplemented to the formulated feeds in each crude protein level. According to evaluate the SGR,EG and Energy budget of each group,we studied the relationship between the growth of flounder and different kinds of protein level and chinese herbs of the feed.The result shows on keeping the protein lebel of usual growth the fish feed with No.2 chinaese herb had higher growth rate compared with the other treated groups.The energy budget for group H2 was described as the following equation: 100C=13.53F+8.32U+27.77R+50.38G, where C=feed energy, F=fecal energy, U=urine energy, R=respiratory energy, G=growth energy, indicating there was higher ratio of growth energy to feed energy and lower fecal energy and urine energy than that in other groups. The results indicated that the No.2 prescription can accelerate the growth at the optimal protein level.

Keywords： Japanese Flounder, Protein, Chinese herbs, Growth, Energy budget