Scale breeding method of jade perch

Abstract

The mass jade perch fry rearing process includes the following steps: 1. reinforced parent perch incubation after raising in a fish pond, in 1-3 months before laying eggs and through regular flow water irritation; 2. laying egg and incubating by means of setting female perch and male perch in the ratio of 1-1.5 to 1 into the egg laying pond, keeping flow water irritation, injecting echolica for female perch to lay egg, gathering fertilized eggs and incubating in a cement pond with slow flowing water, air inflation, certain water salinity and controlled water temperature; and 3. rearing perch fry in an incubating pond with slow flowing water, air inflation, certain water salinity and controlled water temperature through feeding brine shrimp larva. The said process has high jade perch fry survival rate.

Description

technical field [0001] The invention relates to a method for raising fish seedlings, in particular to a method for large-scale seedling raising of Scortum bacoo. Background technique [0002] Scortum Barcoo (Scortum Barcoo), English name Jade Perch, belongs to the order Perciformes, Scortumidae, and the genus Scortum in classification. It is native to Australia and is an economical freshwater fish in Australia. The fish is delicious, without intermuscular spines, and contains The meat rate is high and nutritious. In October 2000, Pearl River Fisheries Research Institute successfully introduced gem perch into my country through Australian Aquaculture Products for breeding experiments. From May to June 2001, Shandong Province also imported seedlings of gem perch from Australia for breeding. The artificial breeding of gem perch seedlings in my country began in 2004. Although many units in China have carried out artificial breeding of gem perch, it is difficult to obtain large...

AI Technical Summary

Problems solved by technology

The artificial breeding of gem perch seedlings in my country began in 2004. Although many units in China have carried out artificial breeding of gem perch, it is difficult to obtain large quantities of high-quality fertilized eggs due to 1. The prenatal intensive cultivation of broodstock is not emphasized. ; 2. Failure to provide the optimal water environment factors for fertilized egg hatching and fry cultivation; 3. Failure to provide nutritionally suitable opening cultivation bait during the fry cultivation stage, and the opening feeding rate of larvae and the survival rate of cultured fry are not high; 4. Fry The temperament is fierce, and the abundance of bait during the breeding period is not enough to easily cause cannibalism, resulting in a decrease in the survival rate; the above reasons lead to the overall survival rate of gem perch seedlings being lower than 10%, and it is difficult to achieve mass production of seedlings , resulting in a shortage of seedlings of the gemstone perch, which limits the large-scale development of the gemstone perch aquaculture industry