The sturgeon is large in size, fresh and full in meat, rich in fat and protein. Protein content in muscle was 17.18%, fat was 5.64%, protein content in liver was 8.71%, fat was 8.20%, protein content in ovary was 13.47%, fat was 15.42%.
How to raise the elephant nosed fish?
The age of primary sexual maturity is 7-8 years old, the length of the individual is about 2 meters, and the weight is more than 25 kg. The spawning place is above Chongqing in the upper reaches of the Yangtze River in the reproductive season from March to April. The river section with rapid flow rate of about 0.49m/s, water depth of less than 10m, and most of the bottom material is rock or pebble. The spawning place is concentrated in the Yangtze River section near Jiang'an County and Jinsha River section near Baishu River, Yibin, Sichuan. The main natural spawning ground is about 500m away from Baixi Town, Yibin County, Sichuan Province.
The mature eggs are gray black and large. The eggs drift and develop with the water. The young fish grow in the Yangtze River Estuary. The age of sexual maturity of sturgeon is 7 for female and 5 for male. From 1983 to 1986, 13 females were caught in the breeding population, aged 7-15 years, with a body length of 179-281 cm and a body weight of 25-102 kg; 22 males, aged 5-10 years, with a body length of 156-214 cm and a body weight of 12.6-47.5 kg. Mature eggs are grayish black. The body length is 174 cm, and the body weight is 31 kg. The female is pregnant with 200000 eggs.
Characteristics of elephant nosed fish
The sturgeon is large in size, fresh and full in meat, rich in fat and protein. Protein content in muscle was 17.18%, fat was 5.64%, protein content in liver was 8.71%, fat was 8.20%, protein content in ovary was 13.47%, fat was 15.42%. There are 17 kinds of common amino acids in muscle and egg, the contents of which are the same as those of Acipenser sinensis. Because of its rich nutrition, it has always been regarded as an edible treasure. In Jiangsu and Shanghai, it has been listed as four famous freshwater fishes, i. In addition, the medicinal value of the white sturgeon is the same as that of the Chinese sturgeon.
Due to overfishing and other reasons, resources are declining and are now endangered. Due to the deterioration of the ecological environment, the distribution area of the Acipenser sturgeon is gradually shrinking, the number is decreasing year by year, and the individual is getting smaller and smaller. Nowadays, the endangered situation of the Acipenser sturgeon is no less than that of the giant panda. If effective measures are not taken to protect it, it may disappear forever in a few years.