The invention discloses application of
insulin in regulation and control of LC-PUFA (liquid
chromatography-
polyunsaturated fatty acid)
biosynthesis of
eriocheir sinensis, and belongs to the technical field of bioengineering. The invention provides an application of
insulin in preparation of a preparation for regulating and controlling
eriocheir sinensis LC-PUFA
biosynthesis,
insulin is taken as an
active component, and the content of LC-PUFA is regulated and controlled in a targeted manner by improving the PIK3Ralpha
gene expression of
eriocheir sinensis. The invention further provides application of the combination of the insulin and the PI3K
agonist 740Y-P in preparation of a preparation for regulating and controlling the LC-PUFA
biosynthesis of the eriocheir sinensis. The invention also provides a preparation for regulating and controlling the LC-PUFA biosynthesis of the eriocheir sinensis, which comprises an effective amount of insulin as an
active component and also comprises a PI3K
agonist 740Y-P. Experiments prove that the insulin regulates and controls the LC-PUFA biosynthesis of the eriocheir sinensis in a targeted manner through a PIK3
signal channel, and a general strategy is provided for
nutrition regulation and control of crustaceans.