The application discloses a method for promoting
ovary development of
Pelteobagrus vishnui, belongs to the technical field of fish culture, and feeds a functional additive during an
ovary development preparation period and a strengthening period in the process of culturing
Pelteobagrus vishnui, wherein the functional additive is a microcapsule prepared by mixing
epigallocatechin gallate and a composite
unsaturated fatty acid, embedding the inside layer by using beta-
cyclodextrin, and
coating the outside layer by using
chitosan; and the composite
unsaturated fatty acid is composed of
monounsaturated fatty acid and
polyunsaturated fatty acid at a volume ratio of 0.8-1:1-1.2. In the application, the EGCG and the composite
unsaturated fatty acid are compounded, and then embedded to prepare the microcapsule, which is added into feed for feeding, so that the
ovary development of
Pelteobagrus vishnui is effectively promoted, the number of oocytes is increased, the proportion of III stage oocytes is increased, the
fecundity of Pelteobagrus vishnui is effectively improved, and the spawning quantity, fertilization rate and
hatching rate are increased.