Timely arrest to increase the yield of fresh shrimp

According to research observations, the lifespan of shrimp is generally only 14 months to 15 months, and the lifespan of males is slightly shorter than that of females. For example, after passing through the winter, the shrimps in the south of the Yangtze River generally begin to die in early June, and they collectively die in July. In the north, they generally have to postpone their stay for about one month. Therefore, the time for catching the shrimp should be determined according to the mode of farming and the time of stocking. Different farming modes use different fishing methods.

1, Double season shrimp mode. In the spring, the shrimp species will be released in autumn, and the catch will begin in May. The shrimp will be caught in the dry pool by the end of June. The shrimp will be stocked in the autumn from late July to early August, and will be caught in October and harvested in January of the following year.

2, a quarter of Macrobrachium prawn shrimp mode. In May and mid-May, stocks of Macrobrachium rosenbergii were stocked, and they were listed from the end of August to the beginning of October. Macrobrachium Roche was stocked with fresh shrimps, followed by round-fishing before the Spring Festival, and fishing was completed before the end of April.

3, raising fish into spring, autumn green shrimp mode. From January to June in the spring, fish were raised, and in July, shrimps were stocked. In September, they began to catch fish. By the end of May of the following year, the shrimps were harvested.

4. Three-year breeding mode. From April to May, silver cod fish fry were cultivated, and young shrimps were bred from June to July. The shrimps were reared and cultured into shrimps. During the Spring Festival, they were listed on March of the following year.

5, put an annual breeding mode. Before and after January, stocks of Qiumin shrimps were stocked and the shrimps were caught from May to June. However, they could be caught in July, July and autumn. From September, they began to catch large and small animals, and from December to next January, dry pools were harvested.

6. Fish-based mixed-cultivation shrimp models. General spring stocking autumn and thick shrimp or egg-holding shrimp, May-June batchwise fishing listed, leaving part of the shrimp breeding shrimp in the pond, to October can be gradually arrested and listed.

7, fish, shrimp, crab polyculture mode. For example, in the spring season, the young shrimps are bred in the autumn or held in egg. The shrimp fishing is generally conducted for a long period of time. May-June and December-January is the peak of two fishing seasons. If the shrimp is stocked in July, it is from October. At the beginning of the arrest, fishing was ended when the fish and crab species were released.

8, paddy field farming shrimp mode. It can be stocked with egg-seed shrimp, autumn-growth shrimp species or shrimp seedlings of the year. According to the growth specifications of the green shrimp, it will gradually start catching and listing from July.

ETR Oxygen Cylinder Filling System 


By PSA principles, ETR PSA oxygen generators generate 93%±2% purity oxygen gas directly from compressed air. ETR oxygen cylinder filling plant is consisted of Atlas Copco air compressor, Parker dryer and filters, air buffer tank, ETR Psa Oxygen Generator, oxygen buffer tank, oxygen receiver tank, diaphragm oxygen booster, filling station and control cabinet.

Compressed air is purified through the air dryer and filters to a certain level for main generator to work with. Air buffer is incorporated for smooth supply of compressed air thus to reduce fluctuation of compressed air source. The generator produces oxygen with PSA (pressure swing adsorption) technology, which is a time proven oxygen generation method. Oxygen of desired purity at 93%±2% is delivered to oxygen buffer tank for smooth supply of product gas. Oxygen in buffer tank is maintained at 4bar pressure, then reach to 150bar to filling cylinders with an oxygen booster.

Oxygen Cylinder Filling


Oxygen Cylinder Filling System

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