Method for industrially cultivating finless eel fries

Abstract

The invention discloses a method for industrially cultivating finless eel fries. According to the method for industrially cultivating the finless eel fries, in order to enable the industrially cultivated eel fries to have large batch and ensure the uniformity of the eel fries, the eel fries cultivated by an industrial cultivation facility are used and are from the eel fries adopted by artificial batch spawning induction propagation production; the spawning induction eel fries are cultured in an incubation room for 4-5 days, yolk sacs of the eel fries basically disappear, and healthy and strongsmall fries with the body length specification of about 2 cm can be transferred into plastic basins to be cultured; the putting density of the eel fries is 2500 eel fries in each basin; after entering the basins, the eel fries can quickly enter cellosilk for evading; on the second day after the eel fries are put, normal feeding management work can be started; special micro-capsule feed is adoptedfor feeding the industrially cultured eel fries; and the environment-friendly and soft cellosilk is selected as an evasion object of the eel fries, can completely overcome the disadvantages caused byusing aquatic plants, is more suitable for inhabitation of the eel fries through practical observation, low in cost, better in cultivation effect and capable of being repeatedly used for a long time.

Description

technical field [0001] The invention belongs to the technical field of fishery science application, and specifically relates to a method for industrially cultivating eel seedlings. Background technique [0002] Yellow eel is also known as squid. The body is slender and serpentine, with a body length of about 20-70 cm and a maximum length of 1 meter. The front of the body is round and the rear is flattened, and the tail is tapered. The head is long and round. Mouth large, terminal, slightly protruding upper jaw, well-developed lips. There are fine teeth on the upper and lower jaws and mouth bones. The eyes are small and covered by a thin skin. The head is thick and the tail is thin. The body surface is protected by a layer of smooth mucous membrane. It has no scales and is yellowish brown in color. There are irregular dark spots on the side of the body. The underdeveloped fins basically disappear. There is only one triangular thorn on the whole body, with few thorns and ...

AI Technical Summary

Problems solved by technology

[0003] However, when cultivating eel seedlings in open-air small net cages, sometimes the water temperature is low and fluctuates greatly, which can easily lead to stress reactions in eel seedlings, causing illness in eel seedlings and even the outbreak of X virus disease, causing a large number of deaths or even annihilation of the entire army; The hiding place of eel seedlings is easy to pollute the pool water due to the aging and detachment of roots and other reasons, causing the death of eel seedlings; feeding with live bait such as water worms, the source of bait is difficult to guarantee, and it is easy to bring in parasites, germs, and viruses. pose a security risk

At the same time, due to the feeding of a single live bait, the nutrient supply is not comprehensive enough, and the growth rate, uniformity and survival rate of eel seedlings need to be improved