Neutron irradiation method for stimulating growth of penaeus vannamei boone larvae

Abstract

The invention discloses a neutron irradiation method for stimulating the growth of penaeus vannamei boone larvae, which relates to the application of low dose nuclear irradiation technology in penaeus vannamei boone breeding. The method utilizes neutron to irradiate the penaeus vannamei boone larvae, and inflates oxygen and circulates the water while irradiates, the optimum neutron fluence of the first penaeus vannamei boone nauplius is 3.77*105 to 4.67*105 neutron / cm2, and the optimum neutron fluence of the second penaeus vannamei boone nauplius is 3.3*105 to 4.1*105 neutron / cm2. The penaeus vannamei boone is the biggest prawn aquaculture specie in China at present, after the neutron irradiation treatment, the cultured seedlings grow quickly and have strong vigour and uniform size, and the invention shortens the seedling growth period, reduces the production cost and has good economical and social benefits.

Description

[technical field] [0001] The invention relates to the application of low-dose nuclear irradiation technology in the breeding of Penaeus vannamei. [0002] Penaeus vannamei, also known as Litopenaeus vannamei, commonly known as Penaeus vannamei, is native to the waters of the Pacific coast of the Americas and is one of the excellent varieties of shrimp farming recognized in the world today. Penaeus vannamei has the advantages of large size, fast growth, low nutritional requirements, and strong disease resistance. It has strong adaptability to changes in water environment factors and is suitable for artificial high-density farming. It is one of the world's three high-yielding shrimp farming species. Since it was introduced into my country in the 1990s, the annual breeding area has reached hundreds of thousands of hectares, making it the largest shrimp farming species in my country. [0003] Irradiation biotechnology is a technology that utilizes the interaction between nuclear ...

AI Technical Summary

Problems solved by technology

①Penaeus vannamei does not have its own germplasm resource bank, the source of broodstock depends on imports, and the source of locally bred offspring broodstock is unclear; ②Because of the lack of strict breeding of broodstock, inbreeding, and the widespread phenomenon of carrying viruses, Penaeus vannamei Seed degeneration; ③ Lack of innovation in broodstock breeding and shrimp seedling breeding technology, non-standard medication and other inputs, antibiotics and furans exceeding the standard, leaving hidden dangers for product export

At present, it is customary in Hainan to refer to the shrimp seedlings of imported seedlings as "first-generation shrimp seedlings". The seedlings have strong vitality and fast growth, but poor disease resistance and stress resistance. The seedlings need to be imported, and the cost is high. higher market price

The shrimp hatched from locally cultivated shrimp is called "second-generation shrimp", which has strong adaptability, low cost, but poor growth, accounting for more than 80% of the entire shrimp output.

[0023] On the basis of previous studies on low-dose stimulation of aquatic growth, and according to the actual situation in Hainan, we aimed at the problems of Penaeus vannamei seedlings by using low-dose neutron irradiation stimulation method to conduct multiple experiments. Focus on the timing of irradiating Penaeus vannamei seedlings? What is the effective dose of irradiation to improve the disease resistance and stress resistance of "first-generation shrimp seedlings"? What is the effective dose of irradiation to improve the growth and quality of "second-generation shrimp seedlings"? What are the procedures and corresponding supporting measures for irradiating Penaeus vannamei seedlings? The actual effect of irradiation on the breeding of Penaeus vannamei? However, this series of problems is still blank and urgently needs to be studied.