抄録
In order to get basic information about runty fish which eventually result in the seed pro-duction process of red sea bream, some biological and biochemical characteristics were compared with moderately-grown and precocious-grown fish of the same lot and a similar growth stage.
Runty fish were characterized by a low muscle ratio and viscerosomatic index. Analytical results indicated that the runty fish lacked energy reserves such as protein, lipid, and triglycerides. On the other hand, the protein/DNA value and RNA/DNA ratios of runty fish also were lower, compared to the other groups. Low energy storage and protein synthesis of runty fish could be partly explained in terms of low food intake under the pressure of size hierarchy.
