Use of pneumatic lift type bioreactor for breeding philippine young little clam in high density

Abstract

The invention belongs to the bioengineering category, relates to an air-lift type bioreactor which is applied to the high density breeding of larvae of Ruditapes philippinarum. The air-lift type bioreactor detects the technological parameters such as temperature, pH, dissolved oxygen and air pressure on line. An air distributor is arranged at the lower part of the reactor shifting cylinder. The air-lift bioreactor with 100L volume is an internal circulation type reactor made of organic glass. The breeding density of the larvae of Ruditapes philippinarum is set as 280-350 / ml. The breeding begins from a D shaped larval stage, passes umbo larvae till a starting enclosing process. After finishing, the larvae is sent out from the bottom of the reactor. The breeded larvae of Ruditapes philippinarum is the larvae of the Ruditapes philippinarum belonging to a Mollusca, a Lamellibranchia, a Heterodonta, a Veneroida, a Veneridae, a Ruditapes. The invention obtains good effect in the density breeding, the survival rate, the growth speed and evenness of the growth and development.

Description

technical field [0001] The invention belongs to the category of bioengineering, and in particular relates to the application of an airlift bioreactor in high-density cultivation of philippine clam seedlings. Background technique [0002] my country has a long history of marine shellfish farming and is the first country in the world to carry out marine shellfish farming. As far back as the Han Dynasty (200 BC), there were records about oyster farming. In addition to oysters, since the Song Dynasty, people along the coast of my country have also developed tidal flats to breed razor clams, cockles, and clams. By the 1950s, razor clams, cockles, clams, and oysters had become the four major cultured shellfish in my country. [1] . In 2001, the annual output of seawater clams in my country reached 2.01 million tons, becoming the second largest species of shellfish after oyster production. Clamshells live in the tidal flats and filter the organic suspended particulate matter in ...

AI Technical Summary

Problems solved by technology

[0009] The research found that the above-mentioned technologies still have a lot of room for development, and the production potential is far from being fully explored. For example, if oxygen enrichment, ammonia nitrogen removal, online detection and timely regulation of physical and chemical factors can be carried out, and then the mixed culture of larvae and beneficial bacteria can be carried out, the growth of larvae can be improved. The cultivation density can be increased several times or even ten times

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