The invention discloses a special feed for maintaining
water quality for
crayfish. The special feed comprises the following raw materials in parts by weight of 8-16 parts of
corn flour, 4-8 parts of
meat and bone meal, 6-14 parts of sweet potato vines, 10-20 parts of mulberry leaves, 125-130 parts of a
protein additive, 0.2-0.4 part of
calcium hydrogen phosphate, 0.02-0.04 part of an
enzyme preparation, 3-5 parts of an immune
enhancer, 2-4 parts of a phagostimulant, and 4-8 parts of a shaping agent. The shaping agent is prepared through the following technologies of stirring chloro-PEG400 andbeta-
cyclodextrin, performing warming, sequentially adding
sodium hydroxide,
sodium dodecylsulfate and
nitrogen protection under the stirring state, under
nitrogen protection, regulating the temperature, performing stirring, performing cooling, regulating the
system with
hydrochloric acid to be neutral, performing filtering, washing filtrate with
anhydrous ethanol, and performing
drying to obtainthe shaping agent. The
water quality of a pond can be maintained, a favorable
ecological environment can be established, the constitutions of the
crayfish can be improved, and the mortality is reduced.