Ecological cultivation method of fugu flavidus intercropping barracuda parental fish

Abstract

An ecological cultivation method of fugu flavidus intercropping barracuda parental fish is characterized in that barracudas are released to prepare parental fish in winter; an outdoor earth pond is provided with an aerator of 1.5 Kw at every 3 to 5 mu; the pond is disinfected by quick lime before the barracudas are released; water is injected into the pond a week later and the water source is natural seawater; after ten days of injecting the water, two-year-old barracudas are released to prepare parental fish as backup; the density is within the range of 20 to 30 tails per mu without feeding fish meal; in spring, the water temperature of the outdoor earth pond is risen to 14 to 15 DEG C; two-year-old fugu flavidus fingerlings that live through winter are released into the outdoor earth pond; the density is within the range of 800 to 1000 tails per mu; the fugu flavidus fingerlings are fed with baits twice a day; the daily bait-feeding amount is 3 to 8 percent of the weight of each of the fugu flavidus fingerlings; the baits are eel feeding stuff; the next bait-feeding amount is regulated timely according to the ingestion situation; the water is changed once every two weeks; from mid to late of November, the fugu flavidus fingerlings are started to be caught into a greenhouse for living through winter; and the barracudas are kept in the pond to early January and the pond is dried for catching the barracudas when the temperature is relatively low.

Description

technical field [0001] The invention relates to aquaculture, in particular to a method for rearing pike broodstock of chrysanthemum yellow oriental fugu. Background technique [0002] pike( Liza haematocheila ), also known as red-eyed mullet, commonly known as grass mullet, meat stick, and commonly known as yellow-tailed anchovy and yellow-tailed mullet in the Pearl River Delta. It is a coastal fish in warm and tropical regions. It is distributed along the coast of my country from the Bohai Sea to the South China Sea. Its meat is delicious, white and delicate, and its protein content and quality are excellent. It is very popular among consumers. . [0003] Chrysanthemum yellow puffer ( Takifugu flavidus ) belongs to the order Fuguformes, suborder Fuguidae, Fuguidae, and the genus Fugu. It is mainly distributed in the East my country Sea, the Yellow Sea and the Bohai Sea. It feeds on vertebrates and small fish, and has high nutritional value and medicinal value. It is kn...

AI Technical Summary

Problems solved by technology

Although the monoculture technology of chrysanthemum chrysanthemum is relatively mature, there are some problems in monoculture: 1) Because chrysanthemum chrysanthemum has a large mouth opening, some feed debris is often scattered during the process of biting doughy eel feed, chrysanthemum chrysanthemum Pufferfish will not eat these feed debris, and often sink to the bottom and rot. This not only wastes feed and increases the cost of breeding, but also spoils the water quality, and will increase the cost of water quality treatment in order to improve the water environment; 2) Chrysanthemum yellow oriental In the single-culture ponds of pufferfish, the stocking density is generally low, and the yield per mu is only about 600 kg when harvested. The pond space is not fully utilized, mainly because the pufferfish has a pair of relatively powerful canine teeth. In the process of eating bait, they will bite and fight with each other, which is easy to cause injury and infection, and affect the survival rate of culture; 3) In the monoculture pond of Chrysanthemum chrysanthemum, it is easy to form dominant species of algae and aquatic animals. These algae and aquatic animals will interact with Farmed fish compete for dissolved oxygen in the water body. In addition, these dominant species of aquatic animals will die collectively after reaching a certain peak density, which will easily cause water quality to deteriorate, make the water body hypoxic, and lead to the death of the anoxic floating head of the chrysanthemum yellow oriental puffer; 4) chrysanthemum yellow Pufferfish have a short breeding cycle in ponds due to overwintering, usually from April to November, so the ponds have a short cycle and are not fully utilized