Cyprinus carpio haematopterus and vegetable symbiotic circulating aquaculture system and method

Abstract

The invention provides a cyprinus carpio haematopterus and vegetable symbiotic circulating aquaculture system and a method. The method comprises five links of water culture, vegetable planting, fish throwing, management and harvesting. The system comprises a culture pond, a water quality treatment system and a vegetable hydroponics system. The culture pond is communicated with the water quality treatment system through a pipeline. The water quality treatment system comprises a purification tank and a pump tank. The pump tank pumps the treated water back to the culture pond. The vegetable hydroponics system is divided into three layers, namely a floating culture layer, a shallow liquid flowing water culture layer and a deep liquid flowing water culture layer. According to the system, the water quality treatment link is enhanced, the metabolism of a nitrifying bacterial membrane on a filter material is powerfully promoted in the form of suspended shear force in water through the cooperation of a floating filter material and an aeration disc, and the purification effect of microbial flora is improved. Meanwhile, nitrogen-containing wastewater circularly flows from the higher end to the other lower end in a hydroponic layer planting groove in a shallow layer flowing mode, nitrogen and phosphorus elements in the water are digested and decomposed through growth of hydroponic vegetables, and the advantages that energy and water are remarkably saved, and the culture density is remarkably improved are achieved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a koi fish-vegetable symbiotic circulating aquaculture system and method. Background technique [0002] Koi (Cyprinus carpio haematopterus) belongs to the subclass Radiniformes, Cypriniformes, and Cyprinidae biologically. Because of its beautiful body, rich colors, various patterns, and various strains, it has good and mature appreciation standards. The ornamental value and breeding value are extremely high. [0003] At present, the koi breeding industry has developed and formed a certain scale in my country. In the coastal areas where ornamental fish breeding is more developed, such as Guangdong, Fujian, Beijing and other provinces and cities, the koi aquaculture industry has matured, and the koi aquaculture industry in inland areas such as Hubei, Sichuan and even Northeast China has also begun to develop. Farms with a size of several mu are mostly self-employe...

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Problems solved by technology

[0005] The koi industry is a key industry for the transformation of new and old kinetic energy in rural areas and for farmers to increase production and income. Indoor recirculating aquaculture is one of its main farming models. However, the current farming model mostly follows the classic Taiwanese farming model, and the water quality treatment process is relatively simple. Therefore, diseases occur from time to time, seriously affecting the development of the koi industry.

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