Experimental report of feeding Lateolabrax japonicus with expanded feed;

Determining crude fat in expanded feeds;

This article presents the advantage and processing principle of aquatic expanded feed,the effect of expanding on feed nutrient and the experimental results of expanded feed in marine fishes.

In an in vitro experiment, the crude enzymolysis fluid extracted from the intestine of crucian carp was used as the enzyme source to measure amino acid production from 7 extruded and unextruded feeds in 4.

Through the comparison of the spraying uniformity and the lost rate of phytase under two optimum parameters,the results indicated the optimal parameters of spraying liquid phytase water solution vacuum infusion for extruded feed were as follows:the mixing time 5 min,the amounts of liquid added 130mL,the vacuum pressure 0.