Artificial breeding method for seriola aureovittata

Abstract

The invention provides an artificial breeding method for seriola aureovittata. The artificial breeding method for the seriola aureovittata comprises six aspects of parent fish selection, parent fish cultivation, spawning induction, insemination, incubation and fry cultivation. Prawns, drum shrimps, small yellow croakers and fucus are fed as high-quality baits before the spawning induction for nutrition enhancement, so that the quality of fertilized eggs is improved, and the hatching rate is increased; an oxytocic acts on the seriola aureovittata in a feed feeding mode, and the natural fertilizationmode is adopted, so that the stimulation of manual operation on the seriola aureovittata is reduced, and the labor cost is reduced; lecithin, trehalose, proanthocyanidins, laver powder and hyperoside are adopted as auxiliary hatching agents, and ultrasonic stimulation is supplemented, so that the hatching rate of roes is increased, and the malformation rate is reduced; the survival rate of fries is increased by feeding corresponding feed in each growth stage of the fries. By adopting the artificial breeding method for the seriola aureovittata, the hatching rate, the hatching rate and the survival rate are high, the malformation rate is low, the operation is simple, the labor cost is low, and large-scale breeding is easy.

Description

technical field [0001] The invention relates to the technical field of fish breeding, in particular to an artificial breeding method for yellowtail yellowtail. Background technique [0002] Yellow-striped amberjack is a warm-temperate marine pelagic predatory fish belonging to the order Perciformes and the suborder Perciformes, distributed in the western North Pacific Ocean. Yellowtail yellowtail grows fast, yellowtail yellowtail meat is fresh and tender, and has high nutritional value. The content of high unsaturated fatty acids such as EPA and DHA is as high as 20.77%. At present, Japan, Australia, New Zealand, the United States, Chile, China and other countries have carried out artificial breeding of amberjack in the world, but the farmers mainly rely on wild seedlings for breeding, and Japan purchases wild seedlings in my country's waters every year. One million tails are used to meet the needs of the domestic breeding industry. The overfishing of wild amberjack seedlin...

AI Technical Summary

Problems solved by technology

Overfishing of wild amberjack seedlings has led to a sharp decline in the number of wild amberjack. Therefore, it is urgent to carry out research on the artificial breeding technology of amberjack to meet the needs of the current aquaculture industry and protect wild amberjack resources.

[0003] In 2010, the Fujian Provincial Fisheries Research Institute took the lead in artificial breeding of amberjack, and successfully cultivated a small amount of seedlings, but did not achieve mass production

However, the current artificial breeding technology for yellowtail amberjack is not yet mature. During the hatching process of fish eggs, pathogens such as bacteria, molds and viruses attack fish eggs, which can cause a large number of fish eggs to die. The high deformity rate and other problems, and the low survival rate of large-scale artificial breeding seedlings are far from meeting the needs of the aquaculture industry, and have become a bottleneck restricting the sustainable development of the yellowtail aquaculture industry.

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