A swing-type automatic flushing method for indoor seedling collection of Porphyra zebra spores

Abstract

The invention provides a swinging-type automatic-flushing method for collecting indoor porphyra yezoensis conchospore seedlings. The method comprises the following steps of before conchospore seedling collection and during conchospore seedling collection, performing conchospore spreading condition inspection; performing running water stimulation on a discontinuous small-range indoor seedling raising pond by use of swinging-type flushing, so as to enable flushing to be gradually pushed forward. According to the method, single-point flushing is adopted, the flushing intensity is high, point-to-point curved flushing water which is approximately linear is performed and gradually pushed forward, and left-and-right swinging is adopted, so that the flushing intensity of each point on a broken line is nonuniform; the method is applicable to flushing of the small-range or discontinuous indoor seedling raising pond; by virtue of flushing, and the growth of filamentous alga filaments and the development of sporangial branch are promoted. The maturity and spreading of conchospores are promoted; the demersal conchospores are flushed to be fully in contact with a net curtain and attached to the net curtain, so that the spreading and attachment rate of the conchospores can be improved, and wastes of the conchospores are reduced; the net curtain is uniform in seedling collection and is put into a sea timely; the labor cost is reduced, and the porphyra yezoensis seedling raising cost is reduced.

Description

technical field [0001] The invention relates to a laver cultivation technology, in particular to a method for indoor spore collection of Porphyra variegata spores by swinging automatic water flushing. Background technique [0002] Seaweed is a natural marine food. It is delicious, nutritious, and has health care functions. It has been selling well in the international market. With the improvement of modern living standards, especially the enhancement of our people's awareness of food health care, people are paying more and more attention to it. The health function of seaweed has a large domestic market space and strong market competitiveness. [0003] With the development of human civilization and the improvement of living standards, diseases such as "rich man's disease" hypertension, cardiovascular and cerebrovascular diseases are increasingly endangering human health. Laver has the natural functions of lowering blood pressure and enhancing the elasticity of blood vessels,...

AI Technical Summary

Problems solved by technology

[0007] At present, in the Jiangsu area, artificial flushing is mostly used for collecting seedlings of Porphyra zebra spores, and there are many problems, which affect the yield and quality of Porphyra zebra fronds to a certain extent.

[0008] First of all, the indoor cultivation of Porphyra zebra seedlings, especially the indoor ascospore collection, is very expensive. For example, during the collection of Porphyra zebra conchospores, each person is responsible for 40 square meters of manual flushing management based on 15 days of seedling collection. , if 1,000 square meters of shell filaments are cultivated, 25 people need to flush the seedlings every day. According to 100 yuan per person per day, the artificial flushing cost during the seedling harvesting period is nearly 40,000 yuan, that is, per square meter of shell filaments Cultivation increased the cost by 40 yuan. Based on the current breeding area of ​​120,000 square meters in Lianyungang City, the cost of manual flushing is nearly 5 million yuan. In fact, in Lianyungang area, for many years, the time for picking seedlings of conchospores is generally 20 days. As long as 40 days, the cost of artificial flushing and picking seedlings is about 10 million yuan

For farmers engaged in Porphyra zebra seedlings, this is a lot of money

[0009] Second, it is difficult to find a job and difficult to manage personnel. Manual flushing to collect concospores of P. The great laborers in the countryside will also feel sore backs and legs at the beginning. Young people can’t do this kind of work. Most of the laborers in the countryside have gone out to work, so it is difficult to find a job; It is difficult to manage after a long time. It is difficult to let the workers flush according to the requirements. Some people leave halfway or ask for leave continuously. Manual flushing collects conchospores of Porphyra zebra, and personnel management is difficult.

[0010] The 3rd, manual flushing, the conchospore of net curtain adheres unevenly, causes a large amount of ascospore waste, delays the conchospore picking seedling season, has caused the loss to Porphyra variegata cultivation

Artificial flushing is impossible to be uniform. Some places are flushed a lot, and some places are hardly flushed, which causes two losses. On the one hand, the places that are not flushed in time or rarely flushed, most of the shells The scattered conchospores are wasted in vain. On the other hand, because the net curtain goes out of the pool, the number of attached seedlings in each place must reach a certain density. Pond, like this, just cause a large amount of ascospore wastes, delay the ascospore seedling picking season, have caused loss to Porphyra zebra cultivation

[0011] Fourth, there are many broken shells, and there is a lot of waste of conchospores

During the process of collecting conchospores by flushing water, in order to increase the effect of seedling collection, the workers basically walk around in the laver nursery pond. As a result, a large number of filamentous shells are often crushed, and some become powdery; When washing, some filamentous shell fragments with seedlings are washed out of the pool with the water. In addition, when shells are cleaned, most of the small filamentous shell fragments have seedlings and stick to the bottom of the pool. Even if a large number of shells are released, there are very few conchospores that can enter the water body in time and contact the culture net curtain, which will cause a large amount of waste of conchospores virtually, and delay the time of entering the sea of ​​the net curtain to a certain extent.

[0012] To sum up, at present, manual flushing of seedlings increases the cost of seedling cultivation, wastes a large amount of Porphyra zebra spores, delays the time for net curtains to go into the sea, and causes varying degrees of losses to sea culture of Porphyra zebra fronds , how to solve the problem of collecting conchospores by artificial flushing is a problem that needs to be solved at this stage