Soilless breeding method for loach

Abstract

The invention relates to a soilless breeding method for loach.The method comprises the steps of breeding pond selecting, wherein a breeding pond comprises a cement pond body and a drainage channel, the cement pond body is of a big-end-up structure, the bottom of the cement pond body is provided with a sewage collection pit used for collecting loach faeces and residual baits, and a sewage collection pipeline connecting the sewage collection pit with the drainage channel is arranged on the lower portion of the sewage collection pit; feed feeding, wherein the feed feeding amount for loach every day is 2% of the body weight of the loach, the total body weight of the loach in the pond is weighed every 5-7 days, the feeding amount is adjusted according to the body weight, and the feeding frequency each day is adjusted according to changes of water temperature; water quality managing, wherein water quality changes are measured periodically, water is changed periodically, and sewage discharge of the cement pond body is conducted once in the morning and in the afternoon every day separately through the sewage collection pipeline; disease preventing and controlling, wherein the fry putting amount in unit volume is controlled, the feeding amount is adjusted in time according to the water temperature and the water quality, the cement breeding pond is disinfected before and after fries are put, and the soilless breeding method for the loach solves the problems that feeding is excess, water quality is prone to deterioration and chemical residues exist.

Description

technical field [0001] The invention relates to a soilless culture method for loach, belonging to the technical field of aquaculture. Background technique [0002] Loach has high nutritional and medicinal value. It has a large demand in the domestic and foreign markets, and the price is relatively good. The profit of artificial breeding is high, the effect is quick, and the breeding prospect is promising. The breeding area of ​​loach in China is 15 million to 20 million square meters, mainly concentrated in Jiangsu, Henan, Hubei, Shandong, Anhui and Sichuan, and the breeding mode is mainly pond seine farming with soil. At present, the main factor that restricts the efficiency of loach farming is that the growth rate of loach is slow, and the annual growth rate is difficult to reach more than 3 times; the feed utilization rate is extremely low, and the bait coefficient is generally between 4.0 and 6.0, and some even as high as 8.0, which seriously restricts loach. healthy de...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above technical problems, the present invention provides a soilless culture method for loach, which can overcome the problems of overfeeding, easy deterioration of water quality and drug residues in the current soilless culture method of loach