The invention discloses a fish breeding method without using
antibiotics. The method comprises the following steps that 1, a
fish pond is built, small stones with a moderate length are selected and paved at the bottom of the pond, the small stones are covered with clay, the filling joint is higher than the stone surface, the clay is compacted till no water leaks, and then the upper surface of theclay layer is covered with a mixture of crushed Muyu-stone, sandy
loam soil and
loam; 2,
chlorella pyrenoidosa stoste is introduced into a
water body of the pond to adjust the
water body of the pond;3,
chlorella pyrenoidosa
powder is added into basic feed of fishes; 4, in the middle stage of breeding,
photosynthetic bacteria and
lactic acid bacteria are added into the
water body of the pond. In the fish breeding method, no
antibiotics are used, and the problems that a lot of
antibiotics are used in the prior art, accordingly the time for the antibiotics to be discharged out of fish bodies isprolonged and residues are generated are solved; meanwhile, the
survival rate of the fishes bred through the method is higher, and the fishes have the advantages of being good in quality, ecological,safe, rich in
nutrition and high in market price.