The invention discloses a
selective breeding method for distant hybridization
offspring between
megalobrama amblycephala and ancherythroculter nigrocauda. The method comprises the following steps: A, distant hybridization between
megalobrama amblycephala and ancherythroculter nigrocauda: a, selecting a hybridization parent; b, crossbreeding parents: breeding the
megalobrama amblycephala and ancherythroculter nigrocauda parents in different pools; c, hybridization induced spawning: selecting May to June in
midstream of Yangtze River; d, cross
insemination: when the parent fishes are in estrus, respectively hauling nets for
fishing, selecting megalobrama amblycephala female fishes and ancherythroculter nigrocauda male fishes, artificially collecting sperms and eggs for dry
insemination, and controlling the ratio of the female parent fishes to the male parent fishes to be 1: (1-2); e,
hatching the hybridized fertilized eggs: debonding the fertilized eggs by adopting yellow mud or talcum
powder slurry, or directly adhering the fertilized eggs to artificial fish nests, putting the fertilized eggs into a flushing type
hatching tank or a
hatching jar and a hatching loop for hatching, moving out the hatching equipment, and carrying out fry, fingerling and parent fish culture in a pond; and B, breeding
hybrid offspring of megalobrama amblycephala and ancherythroculter nigrocauda. The method is easy to implement and simple and convenient to operate, and a new variety of excellent culter amblycephala with high yield,
stress resistance,
stress resistance and compact scales is obtained.