Artificial breeding method of cephalopholis sonnerati

Abstract

The invention provides an artificial breeding method of cephalopholis sonnerati. The method comprises the steps of (1) parent selection; (2) treatment of a cultivation pond; (3) cultivation managementof parent fishes, wherein a, in the first week of breeding, the water surface of the pond is alternately illuminated by green light and yellow light; within the second and third weeks of breeding, the water surface of the pond is alternately illuminated by green light and red light; when the parent fishes are bred for three weeks or longer, the water surface of the pond is alternately illuminatedby green light; b, feed comprises grouper cooperation feed, 1-2 parts of small fresh fishes and shrimps, 5-8 parts of frozen fresh trash fishes and artificial soft pellet feed; the fishes are fed with the first feed in the first week of breeding, fed with the second feed in the second and third weeks of breeding and fed with the third feed when the parent fishes are bred for three weeks or longer; c, the water temperature of the pond is controlled to be 23-27 DEG C, and the water dissolved oxygen is greater than 5 mg / L; (4) intensive cultivation before breeding; (5) artificial breeding; (6) collection and hatching of fertilized eggs. By means of the artificial breeding method of the cephalopholis sonnerati, the feeding rate of the parent fishes is increased, the breeding capability of theparent fishes is also improved, the spawning rate and fertilization rate of the parent fishes are increased, and large-scale artificial breeding of the cephalopholis sonnerati is effectively achieved.

Description

Technical field [0001] The present invention relates to the technical field of aquaculture, in particular to a method for artificial propagation of red nine perch. Background technique [0002] Cephalopholis sonnerati (Cephalopholis sonnerati), commonly known as reticulated carp, overfish, grouper, red rudder, red melon seed spot, is a kind of fish of the genus Serranidae of the family Perciformes suborder Serranidae . The body is red, with dark brown nets on the head and back, without spots and stripes. There are no canine teeth in the middle of the mandible, and the anal fin has 3 spines and 9 rays. The trailing edge of the tail fin is round and not striped. It often inhabits shallow seas with rocky bottoms, feeds on invertebrates and fish, and is tropical coral reefs and coastal fishes. As a high-end edible fish in the existing market, Red Nine Perch is deeply loved by consumers. However, there are few researches on the artificial propagation method of Red Nine Perch, and ...

AI Technical Summary

Problems solved by technology

As a high-grade edible fish in the existing market, red sea bass is deeply loved by consumers. However, there are few researches on the artificial breeding methods of red sea bass, and effective breeding of red sea bass has not been carried out. Large-scale artificial breeding in factories has a low survival rate, especially in the breeding process, the feeding rate of the broodstock is unstable, the growth and reproductive capacity of the broodstock is low, and the spawning rate, fertilization rate and hatching rate are low, and it is still impossible to achieve effective breeding. The artificial breeding of red nine-thorn perch to meet the market demand for red nine-thorn perch

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