Culture method for small and medium-sized litopenaeus vannamei

Abstract

The invention relates to a culture method for small and medium-sized litopenaeus vannamei and belongs to the technical field of aquaculture. The culture method specifically comprises the following eight steps of: pond clearing, water introduction, disinfection, bait organism culture, water quality detection, staged shrimp seed putting, staged culture, and small and medium-sized catching and harvesting. The method adopts strict treatment such as secondary sedimentation, disinfection and secondary filtration for water for culture at each stage, one-time water introduction and sealed culture to effectively isolate the invasion of external pathogens, and does not use drugs during the whole culture process, so that the product does not have drug residues and has good quality; the staged shrimp seed putting adopts a method of pure-oxygen aeration and dry transportation by putting shrimp seed into a netting cage, with lower shrimp seed damage rate which is generally controlled below 1.0%; and a three-stage culture mode is adopted for culture and can realize 5-generation culture throughout the year, with the average yield of 750-1,000kg / mu, the culture success rate higher than that of conventional culture by 20-30%, and the output value increased by 50% compared with a conventional mode.

Description

technical field [0001] The invention relates to a cultivation method, in particular to a cultivation method of small and medium-sized Penaeus vannamei, belonging to the technical field of aquaculture. Background technique [0002] At present, the main species of prawn farming in my country are Penaeus vannamei, Penaeus monodon, Penaeus sinensis, Penaeus japonicus and other shrimp species (Penaeus longhair, Penaeus meji, New penaeus, etc.), among which Penaeus vannamei accounts for about 30% of the total production. 70~80%, has become the absolute dominant species in shrimp farming in my country. Penaeus vannamei is recognized as one of the few excellent varieties. It is favored by the majority of farming owners because of its advantages such as fast growth, disease resistance and adaptability to the environment. At present, the vannamei aquaculture industry has become the pillar industry of my country's aquatic industry. [0003] With the establishment and development of a h...

AI Technical Summary

Problems solved by technology

[0004] With the increasing production life of Penaeus vannamei, the breeding area is expanding day by day, and a large amount of aquaculture wastewater is discharged, which causes the coastal waters to be polluted to varying degrees, resulting in frequent occurrence of diseases, low breeding success rate, and difficulty in increasing production, which seriously hinders the shrimp farming industry. healthy development of