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Sea water pearl shell overwintering hanging cage and cultivation method

A culture method and pearl technology are applied in the field of seawater pearl overwintering hanging cages and culture, which can solve the problems of low overwintering survival rate and difficulty in overwintering farming, and achieve the goal of improving cleanliness, raising farming survival rate, and improving overwintering survival rate. Effect

Active Publication Date: 2019-04-05
北海汇善珠宝有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of difficulty in overwintering seawater pearl oysters and low overwintering survival rate, to provide a seawater pearl overwintering hanging cage and cultivation method, and to improve the overwintering survival rate of pearl oysters by controlling factors related to overwintering pearl oysters

Method used

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  • Sea water pearl shell overwintering hanging cage and cultivation method
  • Sea water pearl shell overwintering hanging cage and cultivation method
  • Sea water pearl shell overwintering hanging cage and cultivation method

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Effect test

Embodiment 1

[0014] as attached figure 1 , attached figure 2 and attached image 3 As shown, the seawater pearl overwintering cage of the present invention includes a large cage frame 1, a small cage frame 2, an upper layer 5 and a lower layer 6. Such as image 3 The large cage frame 1 and the small cage frame 2 shown are made of metal materials, and their lengths are equal, and the width of the large cage frame 1 is slightly larger than that of the small cage frame 2, so that the small cage frame 2 can be inserted into the large cage frame 1 , the two are correspondingly fixed at the midpoint 3, and the fixing method is welding or fixing with fixing parts to form a cross shape. Such as figure 1 Shown on the four corners of the upper end of the large cage frame 1 and the small cage frame 2, they are connected by a net 4 to form a square at the upper end, and the net 4 is connected by a plastic network cable to form an upper net layer 5 and a lower net layer 6, and the net is connected...

Embodiment 2

[0016] Seawater pearl overwintering cultivation method of the present invention mainly contains following specific technical steps;

[0017] (1) Take the pearl oyster seedlings and put them in the hanging cage, put 1-2 pearl oyster seedlings in each cultured net bag 8, after putting the pearl oyster seedlings in, seal the culture net bag 8 through the slipknot connection 7, and let the pearl oysters grow in the culture net bag 8 grow in the medium, put 20-50 pearl oyster seedlings into each hanging cage, and now the pearl oyster seedlings are sandwiched by the upper net layer 5 and the lower net layer 6 in the breeding net bag 8, relatively fixed, and cast seedlings in April-May. Throwing into the mariculture farm of the deep sandy bottom that water depth is 10-15 meters, hanging rope 10 is hung on the float, hangs in the environment that is 1-2 meters deep apart from the sea surface and raises with the mode of hanging, this time When the pearl oyster is placed vertically;

...

Embodiment 3

[0020] Adopt the cages and methods of Example 1 and Example 2 to cultivate, put in 20,000 pearl oyster seedlings for cultivation, and put them in the first ten days of April of that year, and when testing them, they will be in the second or third year or the first ten days of April in the fourth year, and they will be randomly selected 100 hanging cages were used to calculate the survival rate of pearl oysters, and at the same time, 2000 pearl oyster seedlings were put in for a comparative test according to the traditional culture method. The culture conditions were the same, and the survival rate was also randomly selected to calculate the survival rate. The result was that the cages and methods of the present invention were used to cultivate The survival rate of pearl oysters is over 90% after one year of cultivation and one winter, over 80% after two years of cultivation and two winters, and above 70% after three years of cultivation and three winters. The 1-year, 2-year, an...

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Abstract

The invention discloses a sea water pearl shell overwintering hanging cage and a cultivation method. The invention is characterized in that four corners at the upper ends of a large cage frame and a small cage frame are connected through net lines to form a square at the upper end, and the net lines are connected by using plastic net lines to form an upper net layer and a lower net layer, and an interlayer is formed between the upper net layer and the lower net layer, and longitudinal and transverse lines of the net lines are connected through slipknots, so that 20-30 cultivation net bags withthe lengths of 13-15 centimeters and the widths of 9-11 centimeters are formed between the upper net layer and the lower net layer, and cage frame feet with the heights of 19-11 centimeters are formed at the lower ends of the large cage frame and the small cage frame. According to the invention, a cultivation mode of the hanging cage is adopted for cultivation, vertical hanging cultivation is carried out in summer or when the temperature of seawater is high, horizontal cultivation is carried out horizontally in winter or when the temperature of seawater is low, wind waves and low temperatureare avoided, the distance between the pearl shell and a seabed sand layer is 10 centimeters, damage of various organisms on the seabed to the pearl shell is avoided, the overwintering survival rate ofthe pearl shell is improved, and the breeding survival rate of the pearl shell is also improved.

Description

technical field [0001] The invention relates to a seawater pearl overwintering hanging cage and a cultivation method, belonging to the technical field of seawater pearl cultivation. Background technique [0002] Traditional seawater pearl oyster cultivation generally chooses spring seedlings and harvests before winter. This is because the suitable temperature for the growth of pearl oysters is 13°C-30°C. If the temperature is lower than 13°C, the growth will be slow, and if the temperature is lower than 8°C, pearl oysters will be damaged. This is the main reason why pearl oysters are difficult to survive the winter. However, throwing seedlings in spring and harvesting in winter means that pearl oysters can only be cultivated for one year. The one-year nacre is actually very thin, and the nacre can only grow to about 0.1 mm. It is conceivable that such a thin nacre The quality of pearls is low, and there is no other way to improve the quality of pearls. The only way is to pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/56A01K61/60
CPCA01K61/56A01K61/60Y02A40/81
Inventor 钟锐
Owner 北海汇善珠宝有限公司
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