Overwintering farming method of spotted maigre

Abstract

The invention discloses an overwintering farming method of spotted maigre, which utilizes the idle phase of a shed after farming prawns and original facilitates and belongs to the field of agricultural seawater farming. An original cement pit, the shed and an oxygenation device of the farming shed are utilized; and the specific method comprises the following steps of: clearing pollutants after the end of farming, containing 60cm of water, disinfecting with 100ppm of bleaching powder, draining after 3 days, and air-drying for 3 days; enabling farming water to precipitate in a storage lagoon for 48 hours, disinfecting with the 100ppm of the bleaching powder, filtering by an 80-mesh silk cover after 3 days, pumping into the cement pit of the shed, and adding the water till the water level is 2.0m; when the temperature of the farming water of the spotted maigre is lower than 12 DEG C, transporting the spotted maigre into the shed for stocking, wherein the stocking density is 500kg / mu; and taking iced squid as baits, and feeding in fixed points in a timing and quantitative manner, wherein the feeding quantity is 1% of the total body weight of the farmed spotted maigre. Simultaneously, bay scallops are stocked in the pit according to the density of 100kg / mu, pollution discharge is performed once every 5 days, and 20cm of the water is replaced; and by adopting the method, the survival rate is above 98%, and the using method is simple, convenient, low in cost and easy to popularize.

Description

field of invention [0001] The invention relates to a method for cultivating croaker overwintering by utilizing the idle period after cultivating prawns in a greenhouse and the original facilities, and belongs to the technical field of agricultural mariculture. Background technique [0002] Yellow croaker (Nibea albiflora), commonly known as yellow croaker, belongs to Perciformes, Chrysostidae, and genus Yellow croaker. Its body shape is similar to yellow croaker. It is a fish in the middle and lower waters of the sea, mainly inhabiting sandy mud bottoms In shallow coastal waters, it feeds on benthic animals such as small crustaceans and small fish. Distributed in the Pacific Northwest, including the South China Sea, the East China Sea and the southern part of the Yellow Sea, the optimum growth water temperature is 24°C to 29°C, the spawning water temperature is 24°C to 28°C, the age of sexual maturity is 2 weeks, and the growth suitable salt range is 10‰~ 40‰, which is an id...

AI Technical Summary

Problems solved by technology

Indoor wintering requires personnel management and heating, which consumes a lot of energy, materials and manpower, increases the cost of breeding, and is not conducive to the promotion of the yellow croaker industry.