Culture method for increasing survival rate of sturgeon

Abstract

The invention discloses a culture method for increasing a survival rate of a sturgeon. The method comprises steps as follows: (1) powdered sturgeon fodder with better palatability is processed according to the size of the sturgeon for scientific feeding; (2) improvement of a water environment: a concrete culture pond is sterilized with potassium permanganate, 8-10 g of potassium permanganate is used in water for each cubic meter, and the sterilization time is 48 hours; sewage suction of the pond bottom of culture pond is performed every day in a manner of manually operating a sewage suction pump, and the sewage suction standard is that faeces and residual feeds don't exist at the pond bottom; (3) when phenomena that the sturgeon has a white liver, ascitic fluid and black body diseases, the sturgeon swims by streamside, and end parts of pterygiophore (particularly the tail fin) are whitened due to co-infection of bacteria are found, drug is applied, and simultaneously, vitamin and microelements are supplemented. Compared with the prior art, the method has the advantages as follows: the death rate of the sturgeon is reduced, antibiotic residues in the body of the sturgeon are prevented due to the fact that antibiotics is used for treating liver and gall syndromes, and eating safety can be improved.

Description

technical field [0001] The invention relates to a breeding method for sturgeon, in particular to a breeding method for improving the survival rate of sturgeon. Background technique [0002] Sturgeon is a cold-water fish with fast growth and tender meat. It is one of the special aquatic products with better economic benefits. In recent years, with the continuous improvement of the degree of intensification of aquaculture and the increasing density of aquaculture, the occurrence of fish diseases has become increasingly serious. Excessive breeding density, deterioration of the water environment, intensive feeding, indiscriminate use of drugs, vitamin deficiency, feed rancidity, and imbalance of nutrients and toxic substances in the feed may cause damage to the liver of the sturgeon, leading to liver and gallbladder diseases. The main characteristic of the disease is Sturgeon Hepatobiliary Syndrome. Severe cases of this disease are often accompanied by hemorrhage, gill rot, ent...

AI Technical Summary

Problems solved by technology

Long-term use of antibiotics is likely to cause antibiotic residues in fish. The main hazards are: 1. Drug resistance, 2. Affect food safety, 3. Cause fish disease infection, 4. Reduce fish immunity