Feed additive for river eel and preparation method thereof

Abstract

The invention discloses a feed additive for a river eel and a preparation method thereof. The feed additive comprises the following components in parts by weight: 10-15 parts of a hydrophilic-modifiedand irradiation-cracked bamboo leaf extract, 1-2 parts of a GSE powder, 30-50 parts of a herbivorous domestic animal excrement powder, 1-2 parts of Ralstonia pickettii bactericide with a concentration of 10<7>-10<8> cfu / ml and 2-3 parts of quicklime. The feed additive disclosed by the invention is mainly used for the high-quality river eel; the advanced feed additive which is hydrophilic, capableof improving the meat quality, improving the nutrition value of the river eel, purifying the water quality and promoting the aquatic development and suitable for freshwater culture in enclosure simultaneously is obtained through performing targeted modification treatment on the specially-extracted bamboo leaf extract and then through reasonable matching and appropriate application, makes up the industry blank and simultaneously has an important significance in green and environmentally-friendly ecological river eel culture.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a feed additive for river eels and a manufacturing method thereof. Background technique [0002] Eels are collectively referred to as eels, which are divided into river eels and moray eels. They have a slender body with a cylindrical front and a slightly flattened rear. The head is medium, the eyes are small, and the mouth is pointed and flat. The lower jaw is longer than the upper jaw, and the scales are small and buried under the skin, arranged in a striate pattern. The buttocks and caudal fins are connected, the pectoral fins are small and round, and there is no pelvic fin. The back of the body is dark gray, and the abdomen is white. Produced in the sea, it can swim back to live in fresh water, and return to the sea to lay eggs after maturity. It is nutritious and the meat is fresh and tender. It belongs to the vertebrate door, fish class, eel order, eel family animals. The bo...

AI Technical Summary

Problems solved by technology

However, artificially fed feed will inevitably pollute the water quality, reduce the types and quantities of aquatic organisms, and harvest eels with soft meat and low elasticity. In addition, eels like shade, and the aquatic plants in the damaged water environment cannot grow normally, which will lead to the growth environment of eels. Unhealthy, unbalanced nutrients

In the prior art, the flavonoids and polyphenols that can improve the quality of river eel meat are insoluble in water and slightly soluble, neither of which can be well absorbed and utilized by river eels.

Moreover, adult river eels like to eat dirt, which is easy to cause heavy metal enrichment, which is also a hidden danger of the prior art