Method for artificially breeding seed of spotted maigre

Abstract

The invention discloses a method for artificially breeding the seed of the spotted maigre, belonging to the field of mariculture in agriculture. In the method an indoor high-density seed breeding method is combined with a prelarva outdoor pond ecological breeding method. The method comprises the steps of: indoor spotted maigre prelarva high-density breeding, outdoor pond prelarva breeding, and fishing after the length of the prelarva is more than 5cm. The indoor spotted maigre prelarva high-density breeding comprises the steps of: 1. hatching, 2. breeding the prelarva, and 3. fishing and transporting. The outdoor pond prelarva breeding comprises the steps of: i. soil pond facility finishing and early preparing; and ii. soil pond breeding and managing. The soil pond facility finishing and early preparing comprises the steps of: 1. disinfecting the pond and the water body; 2. installing an oxygenating system; and 3. breeding biological bait. The soil pond breeding and managing comprisesthe steps of: 1. putting the prelarva; 2. changing the water; 3. putting the bait; and 4. regulating the water quality. The method combines with the advantages such as the high controllability of theindoor high-density seed breeding with the ecology imitation of the outdoor pond and the like, so that the seed breeding cost and risk are reduced, and the seed quality of the spotted maigre is improved, therefore, the method can be popularized and applied.

Description

[0001] field of invention [0002] The invention relates to a method for artificial breeding of yellow croaker, which belongs to the technical field of agricultural marine culture. Background technique [0003] [0004] yellow croaker ( Nibea albiflora ), commonly known as Huangpo chicken, belongs to the order Perciformes, the family Scroakeridae, and the genus of yellow croaker. Its body shape is similar to that of yellow croaker. It is a mid- and low-level offshore fish. Feeds on benthic animals such as crustaceans and small fish. Distributed in the Northwest Pacific Ocean, including the South China Sea, the East China Sea and the southern part of the Yellow Sea, the suitable temperature range is 8-33°C, the optimum growth water temperature is 24-29°C, the age of sexual maturity is 2 weeks, and the suitable growth salt range is 10-40‰. It is an ideal variety for breeding in the southeast coast of my country. At present, my country's Fujian, Zhejiang and other places...

AI Technical Summary

Problems solved by technology

The advantages of indoor artificial breeding are strong controllability, early breeding, easy observation, and effective prevention of diseases; the breeding density and survival rate of larvae and juveniles are high; the disadvantage is that there are few types of bait for larvae, and large-scale cultivation of biological bait The technology is unstable and the cost is high; the advantages of artificial seedling cultivation in outdoor earthen ponds are: biological live bait can be directly cultivated in the seedling water body, there are many kinds of bait, comprehensive nutrition, and the individual size of the bait is distributed in gradients, which can meet the requirements of different developmental stages of juvenile fish. For the demand for bait, the larvae grow and develop quickly, and the seedlings are strong; the space for larvae to move is large, and the killing is relatively small; the disadvantage is that the controllability is poor, the environment is relatively open, and it is difficult to effectively prevent the occurrence of diseases; the survival rate of seedlings is low, and the unit water body less seedling emergence