Method for improving n-3 polyunsaturated fatty acid in grass carp meat

Abstract

The invention provides a method for improving n-3 polyunsaturated fatty acid in the meat of grass carp. Cross bred Pennisetum alopecuroides are matched with a compound feed for fresh water fish sold in the market to feed the grass carps. The weight proportion of the dry matters matched with the compound feed and the cross bred Pennisetum alopecuroides is 1.1 to 1. The invention filtrates and discovers a certain plant which is rich in Alpha-linolenic acid, adds the plant with a certain proportion to feed phytophagy fish through scientific research and produces cheap fish meat which is rich in the n-3 polyunsaturated fatty acid through the biotransformation of the phytophagy fish.

Description

technical field

[0001] The invention belongs to the field of aquaculture, and more specifically relates to a method for increasing n-3 polyunsaturated fatty acids in grass carp meat. Background technique

[0002] n-3 polyunsaturated fatty acids include: α-linolenic acid, EPA and DHA, wherein α-linolenic acid is the precursor of EPA and DHA. α-linolenic acid is the main component of human tissue cells. It participates in the synthesis and metabolism of phospholipids in the body. It is an essential fatty acid that cannot be synthesized by the human body itself and can only be taken from the outside (food). EPA is called "vascular scavenger", it has the effect of dredging and cleaning the heart blood vessels, thus preventing various cardiovascular diseases. DHA is an indispensable material basis for the formation, development and operation of brain cells. At the same time, it can also help activate weakened retinal cells, thereby nourishing the brain, improving vision, and pre...