Fry culturing method

Abstract

The present invention discloses a fry culturing method. The method comprises the following steps: (1) preparing a culturing pond; (2) selecting and placing parent fishes, wherein the parent fishes which may reach sexual maturity in 80-100 days later and are healthy and active, placing 150-200 fishes in the culture unit in each step (1); (3) controlling the culture conditions of the parent fishes; (4) mating and spawning, wherein two heterosexual fishes having a mating intention are selected and placed individually in the area of the 0.6-1 m2, and injecting the spawing luteinizing hormone and a chorionic hormone for aquatic products for the parent fishes in a spawning box according to a dosage, wherein the water temperature of the spawning box is maintained at 25-30 DEG C, all-black treatment is maintained in the spawning box for 24 hours; (5) incubating fishes; (6) culturing young fishes; and (7) dividing young fishes into ponds. The culturing method disclosed by the present invention can culture fries systematically according to the amount, and is not needed to consider the effects of factors such as weather and climate on fry culture, and the fry reproductive rate is greatly improved.

Description

technical field [0001] The invention relates to the field of fish farming, in particular to a method for cultivating fry. Background technique [0002] Fish is favored by people because of its fresh and tender meat, but as people's demand for fish meat increases, fish that grow and reproduce naturally can no longer meet the demand, especially the reproductive growth rate of natural fish is very low, and many fish are now Artificial breeding, but the reproductive growth rate is still not high. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the prior art and provide a method for cultivating fry. A method for cultivating fry, the steps of which are: (1) prepare a culture pond, select a pond with an area of ​​1000 to 2000 square meters, a pond depth of 1.2 to 1.8m, and a pond with a silt thickness of less than 12cm, and prepare broodstock 12 to 15 days before stocking. Clean up the pond, and carry out disinfection and st...

AI Technical Summary

Problems solved by technology

[0002] Fish is favored by people because of its fresh and tender meat, but as people's demand for fish meat increases, fish that grow and reproduce naturally can no longer meet the demand, especially the reproductive growth rate of natural fish is very low, and many fish are now Artificial breeding, but the reproductive growth rate is still not high