Method for continuously breeding artificially-collected larvae of ruditapes philippinarum

Abstract

The invention discloses a method for continuously breeding artificially-collected larvae of ruditapes philippinarum. The method mainly includes the following steps: (1) a natural sea beach is selected to serve as a continuous breeding field; (2) a breeding beach range is separated from the periphery through plastic boards to prevent the ruditapes philippinarum from escaping and facilitate feeding; (3) pre-disinfection treatment is carried out on the breeding beach; (4) the collected or purchased larvae of the ruditapes philippinarum are evenly put into the breeding field in a high-density mode; (5) feed is immediately put after the ebb, and a thin water layer is kept for five hours; (6) inner-field surface residuals should be completely washed away through seawater; (7) when the adult ruditapes philippinarum is harvested, the ruditapes philippinarum in the sizes meeting the requirement is screened through a screen, and larvae, with the number the same as the number of the screened-out adult ruditapes philippinarum, of the ruditapes philippinarum are additionally put into the field. By means of the method for continuously breeding the artificially-collected larvae of the ruditapes philippinarum, continuous breeding is carried out through the artificially-collected larvae, the natural larvae of the ruditapes philippinarum can obtain sufficient feed and the natural environment, growing is rapid, the breeding time is greatly shortened, and the ruditapes philippinarum can be rapidly supplied to the market.

Description

technical field [0001] The invention relates to a method for cultivating clams, in particular to a method for artificially picking seedlings and cultivating clams, and belongs to the technical field of seawater cultivation. Background technique [0002] Flower clam (pinyin: huā-gé; scientific name: Ruditapes philippinarum) belongs to the clam family, also known as Philippine curtain clam or Philippine clam, commonly known as flower clam in the south. The shell is oval in shape. Shell hard and thick, swelling. The top of the shell is slightly protruding and slightly curved forward. Clams are widely distributed in the North and South Seas of China, South Korea and Japan. It grows rapidly, has a short breeding cycle, strong adaptability (wide temperature, wide salt, wide distribution), and long survival time out of water. It is a kind of artificial high-density culture. It is one of the four major cultured shellfish in China. Clam is the dominant shellfish in coastal tidal ...

AI Technical Summary

Problems solved by technology

The cultivation of clams requires a large number of clam seedlings. Generally, artificial breeding is to wait for the natural breeding and emergence of clams, but this takes too long and the economic benefits of breeding are not great.

Due to the lack of natural bait and the slow growth of a large number of natural clam seedlings in the tidal flats, the speed of natural harvesting is often faster than the growth speed, resulting in smaller and smaller clams sold in the market, and the number of large clams is scarce, and the price is getting lower higher