Technology for cultivating takifugu flavidus summer fingerlings in cement pond of simple plastic greenhouse

Abstract

The invention discloses a technology for cultivating takifugu flavidus summer fingerlings in a cement pond of a simple plastic greenhouse. The cement pond is adopted, and an arch-shaped ring top is formed above the cement pond. The technology is characterized in that: a dimmable shading film covers on the arch-shaped ring top; the air density in the cement pond is 1-1.5 pieces per square meter; the stocking sizes are 10-12 millimeters in full lengths per fingerling; the stocking density is 1,000-1,500 fingerlings per square meter; the water level is 70 centimeters during stocking; 20 centimeters of fresh water is injected every day from the second day, the cement pond is full of water four days later, and 50 percent of water is changed every other day from the fifth day; after 10-15 days of cultivation, bait scraps and fish excrement are cleared; the water quality indexes are that: the salinity of sea water is 0.8-1.2 percent, the water temperature is 25-28 DEG C, the dissolved oxygen is over 5 mg / L, and the pH is 7.5-8.5; medium-sized cladocerans and copepods are fed at an earlier stage, and large frozen fairy shrimps are fed at a middle stage; and after the full lengths of fingerlings are up to 30 millimeters, a compound feed is fed instead of the frozen fairy shrimps, and an eel feed is fed completely after 3-4 days of transition.

Description

technical field [0001] The invention relates to aquaculture, in particular to a technique for cultivating chrysanthemum yellow oriental puffer summer fingerlings in a cement pool in a simple plastic greenhouse. Background technique [0002] Takifugu flavidus (Takifugu flavidus) belongs to Fuguformes, Fugu suborder, Fuguidae, Fugu genus, mainly distributed in the East my country Sea, Yellow Sea and Bohai Sea of ​​China. Crustaceans, shellfish and other invertebrates and small fish are food. They have high nutritional value and medicinal value, and are known as the first of the "three delicacies of the Yangtze River". Its muscles are as white as frost, the meat tastes plump, tender and delicious, rich in protein, and rich in nutrition. It is determined that every 100 grams of muscle contains 18.7 grams of protein, which is higher than that of yellow croaker; while the fat content is 0.26, which is the fat content of fish. The least one, in addition, it is also rich in vitamins...

AI Technical Summary

Problems solved by technology

In view of good economic value, practical value and biological characteristics, the artificial breeding of chrysanthemum-yellow oriental fugu has gradually risen. Large-scale breeding of chrysanthemum-yellow oriental fugu requires a large number of fish species. Pond cultivation method, this method is obviously restricted by natural climate conditions and affected by the bottom quality of the pond, there are low cultivation survival rate (40-60%), slow growth of fry due to low temperature (40-50 days), large area The problem