Abstract:

Sixty experimental samples of Megalobrama amblycephala were divided into three groups(141.3±4.23g, 96.5±2.88g and 76.8±3.17g) by body weight. Based on these samples, studies about the effects of starvation on biological components in muscle and serum were carried out at water temperature of 20±1℃. It showed that body weight of groups decreased sharply(p<0.05) after the starvation of 14 days, and mean decreasing range after 28 days reached 18.78%. In the same period, contents of moisture and crude ash in muscle increased gradually while crude fat and crude protein decreased continuously, and the significant decline(p<0.05) of crude fat and crude protein appeared after 14 days and 21 days respectively. Compared to triglyceride(TG) and total cholesterol(TC), levels of serum glucose(GLU) showed more sensitive to starvation, and indexes of each group decreased sharply(p<0.05) after 7 days. At the same time, levels of TC decreased sharply(p<0.05) after 21 days, and significant decline(p<0.05) of TG could be found in the whole starvation period from 7 days to 28 days. The results indicated that effects of starvation on biological components in muscle and serum were significant(p<0.05), and the inconspicuous relationship could also be found between body weight and main biological components(p>0.05).