Artificial breeding technique of Sarotherodon sp

Abstract

The invention relates to an artificial breeding technique of Sarotherodon sp for aquaculture industry, which comprises the stages of parent fish selective breeding and culture, egg laying, artificialhatching and larva breeding and culture, wherein the parent fish selective breeding and culture stage comprises parent fish selection and environmental condition control; in the egg laying stage, an induced spawning method and egg laying time control are required to be mastered; an indoor automatic artificial hatching technology is adopted for hatching for 2 to 3 days to produce fish fry, the fishfry flow to a collecting container with water from an upper opening of a hatcher, and sex reversal is performed at the same time; and before breeding fish fry in a pond, pond cleaning, disinfectionand sterilization, control of conditions such as temperature, salinity and dissolved oxygen, raising and other work are required to be done. The technology is scientific and reasonable, low in investment, simple in facilitates and easy to implement, realizes the artificial breeding of Sarotherodon sp, has the advantages of short breeding time, high fish fry quality, high survival rate and the like, is suitable for large scale breeding production and creates greate economic benefits.

Description

technical field [0001] The invention relates to an artificial seedling raising technology of tilapia oni used in aquaculture industry. Background technique [0002] Tilapia belongs to the genus Tilapia of the family Cichlidae of the order Perciformes. It is a tropical fish with more than 100 species, most of which are produced in Africa. Tilapia has the characteristics of fast growth, wide feeding habits, strong fecundity, few diseases, good meat quality and high yield. At present, the main breeds are: Oni tilapia, Jifu tilapia, Gio tilapia and more than 10 varieties. Oni tilapia is the hybrid offspring of Oria tilapia and Nile tilapia, and is currently the main species of tilapia cultured in China. There is a vast area suitable for tilapia farming in the southern coastal areas of my country, and tilapia farming has huge development potential and favorable conditions. [0003] Tilapia is an oral brooding fish. When the water temperature reaches above 22°C, sexually mature...

AI Technical Summary

Problems solved by technology

[0004] The natural hatching method has the following disadvantages: the mouth hatching time of female fish is longer, the hatching rate of fertilized eggs is low, and the survival rate is low; Parents, so the genetic background is not clear, and family selection cannot be carried out

[0005] At present, there are many problems in our country such as the degradation of tilapia parent germplasm, the decline of fecundity, the low degree of factory production, and the low penetration rate of high-quality oni tilapia farming, which restricts the development of tilapia industrialization.

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