Industrialized artificial seedling cultivation method for rockfishes

Abstract

The invention relates to a method of industrial and artificial breeding of Epinephelus, which is applicable to the breeding of Epinephelus malabaricus and E.coioides. The method comprises the following steps: (1) treating a nursery pond and water; (2) preparing before breeding; (3) putting larval fishes of Epinephelus or germ cells; (4) controlling the quality of the breeding water body; and (5) feeding baits. The method is applied to conduct the industrial and artificial breeding, so that the water quality of the breeding is stable, the output for the unit water body breeding is high, the bred sizes of advanced fries are uniform, no antibacterial drugs are used, no special breeding is conducted to unicellular alga, no bottom-attaching happens in the process of breeding, and the operation is simple.

Description

technical field

[0001] The invention relates to the technical field of aquaculture, in particular to a grouper factory artificial breeding method. Background technique

[0002] There are nearly ten species of grouper that have been successfully propagated artificially. At present, the mainly spotted grouper (Epinephelus malabaricus) and oblique grouper (E. coioides) that have reached the production scale. Hereinafter referred to as "grouper" refers specifically to these two species.

[0003] In the artificial breeding of grouper, if the water quality deteriorates (accumulation of certain harmful substances), the fry will die soon. In aquaculture, when the water quality deteriorates, the solution is usually to change the water. However, in the early stage of grouper breeding, because the larvae are small and weak, changing the water will easily cause the larvae to stick to the silk screen and die. Drastic changes in water quality conditions affect the survival rate of fry....