Large-scale natural propagation method for artificially culturing siganus guttatus parents

Abstract

The invention relates to a large-scale natural propagation method for artificially culturing siganus guttatus parents, and the method comprises the following steps: after 1.5-3cm juvenile fish grows into parent fish under an artificial culturing condition, boosting the healthy growth of the parent fish by utilizing the natural propagation of an artificial regulating and controlling technology, optimizing the parent fish, optimizing the culturing environment of the parent fish during the culturing process and optimizing baits; in an antenatal stage, suitably adding the natural baits and suitably changing the culturing environment, thereby boosting the gonad maturity of the parent fish; and naturally purifying the culturing environment of the parent fish in the antenatal stage and disinfecting the culturing environment of the parent fish in a postpartum stage, thereby ensuring the survival of the parent fish, increasing the output of the juvenile fish, providing a large number of high-quality fish fries for the industrialized development of the siganus guttatus culturing, and meanwhile, increasing the survival rate of the artificially cultured parent fish and the survival rate of the juvenile fish.

Description

technical field [0001] The invention belongs to the technical field of artificially cultivated fish, and in particular relates to a large-scale natural reproduction method for artificially cultivated basket fish parents. Background technique [0002] Siganus guttatus (Siganus guttatus, commonly known as golden tiger spot) belongs to Perciformes, Basketfish family, and Basketfish genus. Its meat is delicious, high in protein, rich in n-3 highly unsaturated fatty acids, and has high nutritional value. Consumers love it, and it sells well in Southeast Asian countries, and it sells well in Fujian, Guangdong, Hong Kong and other markets in my country. [0003] Basket fish is a rare omnivorous fish in the order Perciformes, and it is also a rare omnivorous fish in marine cultured species (most marine species are carnivorous fishes). The salient features are: 1. Omnivorous , the feeding source is easy to solve, and the basket fish like to eat large seaweeds such as Enteromorpha, wh...

AI Technical Summary

Problems solved by technology

Due to the use of exogenous hormones to accelerate ripening and oxytocin, there are quality problems of sperm and eggs, which directly affect the survival rate of seedlings after fertilization. One of the key factors of low