Artificial intensive incubation method for cyprinus carpio koi fries

Abstract

The invention relates to an artificial intensive incubation method for cyprinus carpio koi fries. The method comprises the following steps of: injecting 1 to 3mg of oxytocic hormone domperidone and 2 to 5mu g of chorionic gonadotropin into every 1kg of parent fish of cyprinus carpio koi; filling water into a hybridization pool; putting a mixture of collected roe and semen into 1 to 3 percent physiological saline for insemination by an extrusion method; adhering oosperm to an artificial egg collector by using a brush and putting into an incubator in the hybridization pool for incubation, wherein the water temperature of the hybridization pool is 18 to 23 DEG C; treating by using 18 to 24 ppm saline solution for 15 to 30 minutes; and incubating the roe at the water temperature of between 15 and 25 DEG C for 5 to 7 days for membrane breaking and fry emergence. The method has the obvious advantages of improving the disease resistance of the fries, increasing the incubating rate and survival rate and forming the cyprinus carpio koi fry production technology of intensification, industrialization, mass production and high quality.

Description

technical field [0001] The invention belongs to the technical field of fry production of aquaculture ornamental fish. Background technique [0002] Koi belong to the family Cyprinidae, Cyprinus, Carpio, and Brocarded Carp, and are called Nishki Goi in Japan. Koi has only a history of nearly 300 years since its earliest appearance. [0003] Koi is a high-end ornamental fish that is popular in the world today. It has the reputation of "living gems in water" and "artwork that can swim". It has high ornamental value and high economic value. Because it is easy to breed and raise, and has strong adaptability, it is very popular among people. Because koi is beautiful and entertaining, and easy to raise, according to the development of foreign countries and the practice of our country, the potential domestic market is not small, especially for export. The annual import volume of ornamental fish including koi in the United States reaches 2 billion US dollars; the annual export vol...

AI Technical Summary

Problems solved by technology

In the current development of the koi breeding industry in China, the main problems are that the quality of the koi produced is low, the output value and economic benefits are not high, the artificial hatching conditions are poor and the natural environment is greatly affected, which makes the hatching water temperature fluctuate greatly and the water quality is unstable. , easy to be infected with fungi, pathogens, parasites and easily attacked by aquatic insects, resulting in low hatching rate and survival rate of koi fry, and poor physique of fry, producing a large number of low-quality koi, which not only increases the production water surface load, It also reduces the economic benefits per unit area, and the hatching cost is high, and it cannot meet the needs of koi industrial development and large-scale export

Even if it is exported, the price is extremely low, which seriously restricts the development of my country's koi industry