Zhejiang breakthrough fish artificial propagation technology

The fish [Elopichthys bambusa (Richard-son)] is a genus of the family Acipenseridae and Yalominosae, also known as the scorpionfish and the horizontal fish. Living in the middle and upper levels of rivers and lakes, swimming quickly and acting with agility is a typical fierce fish that mainly feeds on fish, and it is also a large freshwater economic fish. The fish is fast growing, has a large individual, and has a delicious meaty taste, especially "dried fish," which has always been popular with people. Due to the construction of water conservancy projects and the deterioration of the water environment, the natural resources of the fish have dropped drastically, and rivers and lakes in Zhejiang have been difficult to catch fish traces. In order to develop fish resources and increase freshwater aquaculture species, in 2002, the Zhejiang Science and Technology Department issued a provincial major (tendering) project to the Zhejiang Provincial Institute of Freshwater Fisheries in the “Fish Breeding and Healthy Breeding Technology and Demonstration of Freshwater Famous Fishes”. The "artificial propagation of fish and seedling cultivation" is listed as one of the main research contents.

In cooperation with the Jinshan Fish Breeding Farm in Donglin Town, Huzhou City, the Zhejiang Institute of Freshwater Products successfully introduced 2.5Kg-8Kg fish from the Yangtze River as a reserve broodstock, which was intensively cultivated for more than two years. The gonads of the fish are mature. On May 15, 2005, an artificial oxytocin test was conducted in Huzhou, Zhejiang. Through a series of technical measures such as injecting oxytocin and flowing water stimulation, artificial reproduction has achieved a complete success. On May 20th, an expert from Zhejiang Provincial Science and Technology Department organized an on-site inspection of the test. The results showed that the codling rate of fish was 100%, the fertilization rate was 83.3%, the hatching rate was 80%, and a total of 1.6 million fish fry were obtained. .

According to investigations, the Artificial Breeding Technology of Ayu is the first breakthrough in the country.

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