A kind of cultivation method of selenium-enriched Portunus trituberculatus

Abstract

The invention belongs to the field of marine product culture and particularly relates to a method for culturing selenium-enriched portunus trituberculatus. The method comprises the following steps: 1 conducting sterilization and disinfection on seawater and arc-shaped plate bodies; 2 culturing juvenile crabs of the portunus trituberculatus in culture boxes for 30 days, putting selenium-enriched fodder into the culture boxes, and obtaining young crabs of the portunus trituberculatus; 3 placing the young crabs into a culture pond for culturing for 70 days, putting fresh living shellfish and selenium-enriched fodder in at different periods of time, and obtaining the selenium-enriched portunus trituberculatus. By means of the method for culturing the selenium-enriched portunus trituberculatus, the culture of the portunus trituberculatus is made to be more scientific and reasonable, and the portunus trituberculatus can grow more healthy through the nutrition supply at different periods of time; in addition, the provided selenium-enriched fodder is capable of accelerating the crab growth and improving the disease-resistant capability, the crab meat quality is improved, the crab-roe growth rate of female crabs is raised, in addition, the selenium content of the portunus trituberculatus is increased, and economic benefits are improved.

Description

technical field [0001] The invention belongs to the technical field of marine product cultivation, and in particular relates to a method for cultivating selenium-enriched Portunus trituberculatus. Background technique [0002] Portunus trituberculatus is an important marine economic animal. Because of its large size and delicious meat, it is deeply loved by the masses and has high economic value. Therefore it gradually unfolds as a breeding object. In the existing portunus trituberculatus culture technology, the seedlings are generally put out in early May, and they are listed in about October. When putting in the seedlings, there are the following problems: (1) the feed that is input is insufficient, resulting in the mortality rate of juvenile crabs (2) During the breeding process, young crabs fight for bait and mates in the later stage, resulting in the death of a large number of swimming crabs and a decrease in production. [0003] On the other hand, selenium can improve...

AI Technical Summary

Problems solved by technology

Therefore it gradually unfolds as a breeding object. In the existing portunus trituberculatus culture technology, the seedlings are generally put out in early May, and they are listed in about October. When putting in the seedlings, there are the following problems: (1) the feed that is input is insufficient, resulting in the mortality rate of juvenile crabs (2) During the breeding process, crab larvae fight for bait and mates in the later stage, resulting in the death of a large number of swimming crabs and a decrease in production