Method for cultivating high-quality and high-yield young penaeus vannamei

Abstract

The invention discloses a method for cultivating high-quality and high-yield young penaeus vannamei. The method comprises the steps of carrying out temporary culture, maturity promoting culture and propagation on parent penaeus vannamei, performing collection and culture on healthy nauplii, performing healthy culture of flea-like larvae, opossum shrimps and young penaeus vannamei, and performing control of environmental factors, management of a breeding process and the like. By screening high-quality parent shrimps and regulating and controlling nutrition in the maturity promoting process, gonads of the parent shrimps develop well, so that the mating rate and the hatching rate of fertilized eggs are increased. Through strict disinfection of water for seedling culture and ecological regulation and control of nutrition and water quality of larvae in all stages, breeding culture conditions are optimized, antibiotic drugs are not used in the breeding culture process, and the cultured larvae are high in stress resistance and grow fast.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a method for cultivating high-quality and high-yield Penaeus vannamei seedlings. Background technique [0002] Penaeus vannamei is native to the Pacific coast of America. The shrimp has fast growth rate, high meat yield, rich nutritional value, strong adaptability to the environment, and can grow in both seawater and freshwater environments. Shrimp species. At present, in the process of prawn farming, the problems of low yield and small size of shrimp are prone to occur. The main reasons for these problems are the uneven quality of seedlings and the deterioration of environmental factors. The quality of parents used in the breeding process is poor, such as poor gonad development or virus, resulting in low mating rate or virus in shrimp seedlings. Weak seedlings are not eliminated during the breeding process, and excessive use of antibiotics leads to damage to the immunity ...

AI Technical Summary

Problems solved by technology

At present, in the process of shrimp farming, it is easy to have problems of low yield and small size of shrimp. The main reasons for these problems are the uneven quality of seedlings and the deterioration of environmental factors.

The quality of parents used in the breeding process is poor, such as poor gonad development or virus, resulting in low mating rate or virus in shrimp seedlings. Weak seedlings are not eliminated during the breeding process, and excessive use of antibiotics leads to damage to the immunity of prawns, resulting in congenital deficiency and stress. Weak, low disease resistance or slow growth