Effect of different levels of earthworms and vermicompost on the flesh quality of grass carp,ctenopharyngodon idellus

To investigate the effects of earthworms and vermicompost on the flesh quality of grass carp,grass carp with the average body weight(54.03±0.15) g were fed for 100 days by adding 5%,7.5%,10% earthworms or 2%,4%,6% vermicompost in basal diets.The results showed that:adding earthworms and vermicompost could significantly improve the content of crude protein in flesh(P0.05),adding 7.5%～10% earthworms and 6% vermicompost worked the best while had no significant effects on moisture,crude fat and crude ash(P0.05);in the aspect of muscle total amino acids content,almost all test groups were better than the control group except the group added with 2%vermicompost with no difference compared with the control group(P0.05),while the test group added with 7.5% earthworm worked the best;in the aspect of essential amino acids content,the EAA content of adding 7.5% earthworms test group was significantly higher than that of the control group,while the other groups had just a high trend;