Naked-bellied sturgeon, a national second-level protected animal, achieves artificial breeding

Source: Science and Technology Daily

Science and Technology Daily News (reporter Li Liyun) On July 17, a joint scientific research team set up by Xinjiang Yihe Sturgeon Industry Technology Co., Ltd., Heilongjiang Fisheries Research Institute of the Chinese Academy of Fishery Sciences, and Yili River Basin Development and Construction Administration Bureau released the news to the outside world, and the team successfully conquered the artificial breeding technology of naked-bellied sturgeon, and realized the artificial breeding of naked-bellied sturgeon, a national second-level protected animal, for the first time.

On May 21, the team opened a study on artificial reproduction of naked-bellied sturgeon, obtained 120,000 naked-bellied sturgeon eggs, and performed artificial fertilization, which calculated that the fertilization rate of fish eggs reached 50%, and obtained 25,200 naked-bellied sturgeon fry, with a seed hatching rate of 42%. After 50 days of careful cultivation, more than 6,000 sturgeon fry have been preserved, which have reached more than 6 cm, and are now in a good state of development and strong feeding ability. The successful breakthrough in the artificial breeding technology of naked-bellied sturgeon marks a leap-forward progress in the ecological protection of the Ili River Basin in Xinjiang, especially in the protection and breeding and stocking of naked-bellied sturgeon.

According to Zhang Ying, a researcher at the Heilongjiang Fisheries Research Institute of the Chinese Academy of Fishery Sciences, the naked-bellied sturgeon is a sturgeon family, sturgeon fish, commonly known as "green sturgeon", native to the Black Sea, caspian sea and other river basins, the Soviet Union introduced it into Lake Balkhash from 1933 to 1934, and entered the Ili River system in China, becoming an important aquatic wild species in the Ili River Basin. Since the 1990s, the population of the naked-bellied sturgeon in the Ili River Basin has decreased sharply and is listed as a national second-class protected animal. In view of the imminent protection of naked-bellied sturgeon in the Ili River Basin of Xinjiang, the team launched a joint research this year, and achieved a successful breakthrough in the artificial breeding technology of naked-bellied sturgeon, and the seedlings obtained from the artificial breeding of naked-bellied sturgeon greatly enriched the population of naked-bellied sturgeon.

The scientific research team will also carry out scientific experiments such as breeding physiology, feed nutrition, parental cultivation and large-scale breeding of naked-bellied sturgeon on the basis of the original parents and the seedlings cultivated this time, and gradually improve the protection technology of naked-bellied sturgeon after analysis and summary, so as to make this technology more practical, realize the large-scale cultivation of naked-bellied sturgeon seedlings, and lay a solid technical and material foundation for the future research of naked-bellied sturgeon protection technology and the restoration of breeding and stocking populations.