Kelp seedling raising method for reducing production cost

Abstract

The invention discloses a kelp seedling raising method for reducing the production cost. In a collecting stage of zoospores, the density of the collected zooospores on seedling curtains is controlledat 70-75 pieces / field of view, and when young sporozoites cultivated on the seedling curtains grow to 4-column cells, a part of the young sporozoites on the seedling curtains are brushed down, so thatthe young sporozoites with certain density are kept on the seedling curtains; the brushed young sporozoites are collected, washed and then sprayed to new curtains on which seedlings are not collected, and the new curtains are subjected to standing, flow water cultivation and washing at appropriate time. By adjusting the density of the zooospore collected in the early stage of seedling raising, the number of the seedling curtains for initial collection of the young sporozoites is decreased, the size of an occupied production workshop in the early stage of seedling raising and production is reduced, the production input in the early stage of seedling raising is reduced, and the purpose of reducing the production cost is achieved.

Description

technical field [0001] The invention relates to a method for raising kelp seedlings, in particular to a method for raising kelp seedlings for reducing production costs. Background technique [0002] my country is the world's largest kelp farming country, and kelp farming is one of the pillar industries of aquaculture in my country. At present, the main method of raising kelp seedlings is: when the kelp is not yet mature, the kelp is optimized, and then the kelp after the optimization is temporarily raised in the kelp breeding area. In the suitable seedling season (usually the beginning of August each year), the kelp is mature and grows a large number of sporangia. At this time, the kelp is recovered and transported back to the seedling picking workshop. After the kelp is cleaned of impurities, the spores are released in the release pool, and then the released spore water is adjusted to a suitable density, and the seedlings to be harvested are placed in the seedling pool for...

AI Technical Summary

Problems solved by technology

In this method of picking seedlings, the density of collected plankton (embryo) spores is controlled to adapt to the reasonable density of young sporophytes (young sporophytes, commonly known as seedlings) that will develop in the future. The density of young sporophytes on the seedling curtain should not be too large. Otherwise, it will lead to serious diseases of young sporophytes in the later stage of seedling cultivation, which will lead to production failure and affect the seed market and the quality of seedling curtains.

[0003] According to this method of raising kelp seedlings, the number of seedling curtains that need to be collected is fixed at the beginning of seedling picking, and the number of seedling curtains that are finally bred depends on the number of young spore seedling curtains collected initially, and must be fully loaded in the seedling cultivation workshop from beginning to end. For seedling cultivation, this will cause the cost of manpower, power resources, water resources, light control, etc. to be invested in the full operation of the entire seedling cultivation workshop from beginning to end during the seedling cultivation period.