The invention relates to fatty
powder for aquatic animals as well as a preparation method and application thereof. The fatty
powder for the aquatic animals is prepared from the following components bymass percent: 5 to 10 percent of arochidonic acid oil and a
decomposition product thereof, 5 to 20 percent of
medium chain triglyceride and a
decomposition product thereof, 10 to 35 percent of
kelp powder, 5 to 25 percent of phycocolloid prepared from three types of aquatic plants, and 15 to 40 percent of carriers. The fatty powder for the aquatic animals contains functional
fatty acid which is not contained in conventional
plant oil, while the
fish oil or fish-oil-free feed is reduced, the special requirement of the aquatic animals for the
fatty acid in the feed can be met, the fat
metabolism of an
aquatic animal body can also be promoted, the accumulation of the imbalanced
fatty acid in the body can be reduced, the
fatty liver can be reduced, the body health can be improved, and the culture benefit can be improved; and meanwhile, the fatty powder is prepared by adopting a vacuum post-spraying technology, an
emulsion is sprayed onto the carrier by a vacuum post-spraying device, influence on the quality of the oxidative rancidity caused by the
exposure of
grease can be prevented, and the loss of the fat of the fatty powder in the
granulation and feeding of the feed can also be prevented.