Takifugu obscurus parent and scatophagus argus pond greenhouse overwintering mixed culture method

Abstract

A takifugu obscurus parent and scatophagus argus pond greenhouse overwintering mixed culture method is characterized in that a land with a flat floor is selected, the depth of a pond is more than 2m, a steel wire rope flexible plastic film greenhouse is built above the pond, takifugu obscurus parents are transferred into the pond greenhouse for overwintering when the water temperature of an external pond is reduced to 13 DEG C in November, scatophagus argus overwintering stocking time is similar to takifugu obscurus overwintering stocking time, a takifugu obscurus feedstuff feeding method is as same as an external pond conventional culture method, feeding of commercial feedstuff is omitted if aquatic macrophytes are placed in the scatophagus argus pond, water change is avoided when the water temperature of the pond in the greenhouse is lower than 12 DEG C, water is changed once every three weeks when the water temperature of the pond in the greenhouse is higher than 12 DEG C to 15 DEG C, the water temperature of the external pond is kept higher than 15 DEG C in April every year, takifugu obscurus and scatophagus argus are dragged out of the greenhouse through a net and cultured in the external pond, the scatophagus argus is firstly picked out and placed into another net cage when the net is dragged, the takifugu obscurus parents are directly transported, and the scatophagus argus is dragged out of the greenhouse or cultured in the pond after the takifugu obscurus is dragged out of the pond through the net.

Description

technical field [0001] The invention relates to aquaculture, in particular to a method for overwintering polyculture of fugu obscurus parents and money fish ponds in greenhouses. Background technique [0002] Fugu obscurus (Takifugu obscurus) belongs to Fuguformes, Fugu suborder, Fuguidae, Fugu genus, is an important fishery resource in the Yangtze River waters of my country, and has high nutritional and medicinal value. Its muscles are as white as frost, the meat tastes plump, tender and delicious, rich in protein and rich in nutrition, and is known as the first of the "three delicacies of the Yangtze River". There has been a traditional habit of eating puffer fish in our country since ancient times, and puffer fish has always been regarded as a treasure on the table. In addition, tetrodotoxin can be extracted from the liver and ovaries of puffer fish, which can be used to treat neuralgia, spasm, nocturia, etc., with high economic and medicinal value. Fugu obscurus is the...

AI Technical Summary

Problems solved by technology

Money fish is a warm-water fish. Shanghai Ocean University has conducted related experiments. The low-temperature semi-lethal temperature is 12.2°C, and the low-temperature lethal temperature is 11°C. Therefore, this fish cannot survive the winter naturally in Jiangsu and Zhejiang regions. Promote the breeding of this fish The supporting facilities for thermal insulation and overwintering must be considered, but the separate overwintering equipment for money fish has problems such as energy waste, low utilization rate of water body, prone to small melon worms and other parasitic diseases, which must be frequently treated with medicinal baths, and the cost of overwintering is high.