Method for culturing low-salt resistant juvenile stichopus

Abstract

The invention discloses a method for culturing the low-salt resistant juvenile stichopus of stable character, which can enlarge the stichopus culturing range and improve the stichopus culturing yield. The method for culturing the low-salt resistant juvenile stichopus comprises the following steps: collecting stichopus which has the weight of at least 300g and is cultured in the culturing water with the salinity of 22-28 for at least 1.5 year as parent stichopus; temporally culturing and demonstrating the parent stichopus in a temporary culturing pond of low salinity for 25 days; promoting theparent stichopus to spawn and fertilize in the shade with running water, controlling the temperature of the fertilized egg hatching water at 20-23 DEG C, the salinity of the fertilized egg hatching water at 22 and the fertilized egg hatching density at 10 in per milliliter of fertilized egg hatching water and inflating a little air; when the stichopus embryos developing into the initial larvae, culturing the initial larvae in different culturing ponds; when the initial larvae developing into the doliolarias, feeding the attaching base and changing 1 / 2 water once every day until each juvenile stichopus having the weight of 1g.

Description

Technical field: [0001] The invention relates to a method for cultivating sea cucumber seedlings, in particular to a method for cultivating low-salt-resistant sea cucumber seedlings that can expand the range of sea cucumber cultivation, increase the production of sea cucumber cultivation, and have stable properties. Background technique: [0002] Sea cucumber has been favored by people since ancient times because of its high edible value and medicinal value. With the increase of demand for sea cucumber, the intensity of harvesting has gradually increased, resulting in a sharp decline in the resources of sea cucumber in my country. At present, the artificial breeding and breeding scale of sea cucumber is constantly expanding, but because sea cucumber is a marine animal, the existing sea cucumber seedlings have poor tolerance to salinity fluctuations and low salt, and the salinity of the breeding water suddenly drops or Sustained low salinity (below 24), the survival and growt...

AI Technical Summary

Problems solved by technology

At present, the artificial breeding and breeding scale of sea cucumber is constantly expanding, but because sea cucumber is a marine animal, the existing sea cucumber seedlings have poor tolerance to salinity fluctuations and low salt, and the salinity of the breeding water suddenly drops or Sustained low salinity (below 24), the survival and growth of sea cucumbers will be seriously affected

For example, the coastal area located at the entrance of the river is affected by the runoff of the river. Whenever the rainy season comes, the salinity of the seawater in the pond is relatively low, and the survival rate, yield, meat quality and nutritional content of sea cucumbers are all affected. Limiting the large-scale promotion of sea cucumber farming in coastal areas located at the entrance of rivers

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