China jewellery jewelry industry's Aquaculture Technology Cultured Pearl
the choice of breeding waters
local area aquaculture ponds and small ponds for the 3 to 5 acres, with the large pond from more than 10 acres to have dozens of acres, 1.5 to 2 m water depth, water quality is generally more fat, rich food organisms. Polyculture grass carp in the pond can be, Bian fish, bighead carp, crucian carp, stocking density of 100 ~ 200 / mu, or restocking not competing very little Cultured Pearl fish feeding fish such as chain not stocking predatory fish such as herring, Channa argus, etc..