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External physical stimulation method for promoting secretion of pearl oysters

A technology of physical stimulation and pearl clams, applied in fish farming, application, climate change adaptation, etc., can solve the problems of declining pearl quality, destroying water quality, reducing the proportion of high value-added products, etc., to optimize the structure of pearl products and shorten the growth rate. cycle, the effect of improving the quality of beading

Inactive Publication Date: 2012-05-23
杭州元水生态农业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since the end of the 1980s, the output of freshwater pearls in my country has continued to increase, but pearls with small particles, thin nacre layers, and poor quality have flooded the market, resulting in a continuous decline in the quality of pearls and a decrease in the proportion of high value-added products.
The reasons for the above phenomenon on the one hand are: the pollution of the breeding waters and the environment, the backward breeding technology, the lack of pollution prevention and control technology, etc.; Even occupying too much of the increasingly scarce farmland resources

Method used

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  • External physical stimulation method for promoting secretion of pearl oysters
  • External physical stimulation method for promoting secretion of pearl oysters
  • External physical stimulation method for promoting secretion of pearl oysters

Examples

Experimental program
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Effect test

Embodiment 1

[0056] Embodiment 1: The industrialized environment of this embodiment: adopt vitreous body water tank 1, the inside dimension of tank body is: length 220cm, width 25cm, height 45cm, store water body in the tank, and keep water depth 25cm. Requirements for water quality: The water must be a non-polluted water body, with a pH value of 7.5-8.5, a water temperature of 25-28 degrees Celsius, sufficient dissolved oxygen in the water, and rich nutrients. Cultivate pearl mussels 2 in the water, adopt the culture method of hanging pearls, and the culture density is: the pearl mussels are evenly distributed in the box with an array of 2 (wide) X 6 (long), such as figure 1 shown. A pair of negative and positive electrodes are placed on the inner wall close to the wide side of the water tank. In this example, stainless steel electrode plates 4 and 3 are used. The width of the electrode plates is equal to the width of the inner side of the water tank. The electrode plates are immersed in ...

Embodiment 2-4

[0082] Embodiments 2-4: The difference between these three embodiments and Embodiment 1 is that different stimulation current intensities and voltages between electrodes as shown in Table 1 are used.

[0083] Stimulation current intensity and inter-electrode voltage of table 1 embodiment 2-4

[0084]

[0085] Comparative experiments: 4 comparative experiments corresponding to the above Examples 1-4 were carried out. The difference between the comparative experiment and Examples 1-4 is that it lacks the electric current stimulation process of the present invention, and other contents are the same: a vitreous water tank is adopted, and the inside size of the casing is: long 220cm, wide 25cm, high 45cm, and the water body is stored in the box. And keep the water depth 25cm. The water is a pollution-free water body, with a pH value of 7.5-8.5, a water temperature of 25-28 degrees Celsius, sufficient dissolved oxygen in the water, and rich in various nutrients. Pearl mussels a...

Embodiment 5-8

[0087] Embodiment 5-8: the industrialized environment that the inventive method is implemented: adopt vitreous water tank, the inside size of box body is: length 110cm, width 25cm, height 45cm, store water body in the box, and keep water depth 25cm. Requirements for water quality: The water must be a non-polluted water body, with a pH value of 7.5-8.5, a water temperature of 25-28 degrees Celsius, sufficient dissolved oxygen in the water, and rich nutrients. Pearl mussels are cultivated in the water, and the culture method of hanging pearls is adopted, and the culture density is: the pearl mussels are uniformly distributed in an array of 2 (width)×4 (length) in the box. A pair of negative and positive electrodes are placed on the inner wall close to the wide side of the water tank. In this example, stainless steel electrode plates are used. The width is equal to that of the inner side of the water tank. The electrode plates are immersed in water, and the electrode plates are co...

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Abstract

The invention discloses an external physical stimulation method for promoting secretion of pearl oysters. The method comprises the following steps: selecting a water tank and storing water in the water tank, wherein the water is pollution-free water, the PH value is 7.5-8.5, the water temperature is 25-28 DEG C, and the dissolved oxygen in the water is sufficient; keeping the depth of the water in the water tank at 20-30 cm, breeding the pearl oysters in the water, and keeping a space between adjacent pearl oysters; putting a pair of electrodes in the water tank, and immersing the electrodes in the water; and implanting pearl nuclei into the pearl oysters, and 40-50 days later, performing recurrent pulse galvanic stimulation, wherein during the galvanic stimulation, the galvanic stimulation is performed through the electrodes at fixed time every day, the time intervals of the galvanic stimulation every day are uniformly distributed within 24 hours, the average current of the electrodes is 0.1-1.5 mA, and the voltage between the two electrodes is 3-12 V. According to the external physical stimulation method for promoting the secretion of the pearl oysters disclosed by the invention, the intensity, frequency and distribution of the stimulation current are reasonably controlled, thus the uniform secretion of the pearl sacs can be promoted, and the effects of shortening the growth period and improving the pearl quality can be improved.

Description

technical field [0001] The invention belongs to the technical field of pearl cultivation methods, and in particular relates to an external physical stimulation method for promoting the secretion of pearl mussels, shortening the growth cycle, increasing the diameter of pearls, and improving the color of pearls. Background technique [0002] Since the late 1980s, the output of freshwater pearls in my country has been continuously increasing, but pearls with small particles, thin nacre layers, and poor quality have flooded the market, resulting in a continuous decline in the quality of pearls and a decrease in the proportion of high value-added products. The reasons for the above phenomenon on the one hand are: the pollution of the breeding waters and the environment, the backward breeding technology, the lack of pollution prevention and control technology, etc.; Even excessive occupation of increasingly scarce farmland resources. In recent years, many places have proposed to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 冯晞傅百成葛丁飞
Owner 杭州元水生态农业发展有限公司
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