Culture technology of sea earthworm

When breeding, the water supply should be timely, the temperature is suitable, the density is reasonable, and the bait is suitable. Extensive pond culture adopts artificial (or semi-artificial) breeding, large-scale stocking in shallow ponds and depressions where fish and shrimp are not suitable for breeding, and the work of water intake in the pond must be strict. the breeding of proliferative tidal flat is to artificially breed the larvae of sea earthworms that are about to be buried sand in a certain range of natural sea area (intertidal zone) to proliferate sea earthworms.

Culture technology of sea earthworm

The main results are as follows: 1. Extensive pond culture adopts artificial (or semi-artificial) breeding and large area stocking in soil ponds, and the key point is to make use of shallow ponds and depressions which are not suitable for raising fish and shrimp. In view of the large area of these waters, most of them are initially developed, and the disinfestation is poor, and the sea earthworm itself is a kind of bait organism (including adult larvae), so the water intake in the pond must be more rigorous than that of stocking fish and shrimp, in order to prevent from being attacked by many kinds of living things, affecting survival and yield. As long as the density is suitable and the management is proper, the yield per mu can be more than 50 kg.

2. The stocking of proliferative tidal flat is carried out from the point of view of increasing resources. It is reported that the larvae of sea earthworms that are about to be buried sand are artificially released and multiplied in natural sea areas (intertidal zone) of Shandong and Liaoning, which has a gratifying effect of increasing the yield by 50-75 times, and the method is also very simple. the social and ecological benefits are very significant.

3. If the seedlings are not covered with sand, the seedlings should be laid with coarse sand of about 30cm. Water every day, bait 2mi 3 times, and inflated. In this way, as long as the water supply is timely, the temperature is suitable, the density is reasonable, and the bait is suitable, it only takes half a year to develop the commodity, and the output is generally 10 kg per ping (about 3 kg per square meter).