High-efficiency portunus trituberculatus seedling conveying method

A technology of three-spotted shuttle and transportation method, which is applied in the field of swimming crab breeding, can solve the problems of inaccurate selection of seedlings, high transportation costs, and low survival rate, and achieve the effects of reducing damage and death, improving transportation efficiency, and avoiding hypoxia

Active Publication Date: 2014-01-01
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] In view of the inaccurate selection of Portunus trituberculatus seedlings in the prior art, self-mutilation during transportation, hypoxia, etc., which lead to low survival rates in transportation and cultivation, the present invention provides a high-efficiency transport method for Portunus trituberculatus seedlings. The present invention uses 10.79 Salinity, under the stress of young crabs, select the second-stage young crabs in the nursery pond with a survival rate of more than 50% as seedlings; mix equal amounts of wet wheat husks with seed

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  • High-efficiency portunus trituberculatus seedling conveying method

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Embodiment 1

[0013] A kind of high-efficiency Portunus trituberculatus seed transportation method of the present invention comprises the following steps:

[0014] (1) Seed selection: 150 stage I juvenile crabs were randomly selected in the seedling pond at the dose of 72h low-salt half-lethal concentration (10.79) for stage I juvenile crabs, and were divided into 5 parallels on average for salinity stress experiment. Count the survival rate, and select the second-stage juvenile crabs in the nursery pond with a survival rate of more than 50% as seedlings;

[0015] (2) Transportation method: firstly mix 250g of soaked and drained wheat husks with 250g of stage II crab seedlings evenly, put the mixture into a polyethylene seed bag, then fill the seed bag with 5L of oxygen, seal the mouth, The seed bag is put into the foam box again, and each foam box is put into 2 bags of seedlings, and finally 250g biological ice packs are packed into the foam box, and the foam box is sealed with adhesive ta...

Embodiment 2

[0018] The wheat husks were not treated with the seawater which added 300ppm polyhexamethyleneguanidine disinfectant and cooled down as described in Example 1, but were soaked and drained with ordinary seawater, and the rest of the steps were the same.

Embodiment 3

[0020] (1) Seed selection: According to breeding experience, select Portunus trituberculatus stage II young crabs with complete appendages, smooth body surface and strong vitality as seedlings;

[0021] (2) Transportation method: Use a 50L cylindrical small-mouth plastic bucket lined with polyethylene bags with water and inflate for transportation. Each bucket holds about 45L of water, built-in 2 square meters of shredded mesh, put 500g of stage II young crabs, insert the inflation tube and loosen the mouth of the bag. Keep the water temperature at 18-20°C during transportation and avoid direct sunlight.

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Abstract

The invention provides a high-efficiency portunus trituberculatus seedling conveying method, and belongs to the technical field of cultivation of portunus trituberculatus. The high-efficiency portunus trituberculatus seedling conveying method comprises the following steps of (1) seedling selection: randomly selecting a first stage of juvenile portunus trituberculatus from a nursery pond by using 72-hour low-salt medial lethal concentration 10.79 of the first stage of the juvenile portunus trituberculatus as dosage, performing a salinity stress experiment, calculating the survival rate after 72 hours, and selecting a second stage of juvenile portunus trituberculatus in a nursery pond with the survival rate higher than 50% as conveying seedlings; and (2) a conveying method: uniformly mixing wheat shells which are soaked and then are drained off and the second stage of the juvenile portunus trituberculatus according to the weight ratio of 1:1 at first, placing the mixture in a seedling bag, inflating oxygen in the seedling bag, binding the opening of the bag by using a rubber band, placing the seedling bag in a bubble chamber, finally, placing biological ice bags in the bubble chamber, and sealing the bubble chamber by using adhesive tapes. By the high-efficiency portunus trituberculatus seedling conveying method, the seedling conveying time can be 10-12 hours, the conveying yield reaches 98.5%, the damage rate of the juvenile portunus trituberculatus reaches 1.2%, and the seedling cultivation survival rate is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of portunus trituberculatus cultivation, and in particular relates to a method for transporting portunus trituberculatus seedlings with high efficiency. Background technique [0002] Portunus trituberculatus is an important marine economic animal. Because of its fast growth, large body and delicious meat, it is deeply loved by the masses and has high economic value. Therefore, it is gradually developed as a breeding object. At present, the breeding area is 500,000 mu, and the output reaches 100,000 tons. It has become one of the leading species of marine farming in my country. At present, 1.5 billion Portunus trituberculatus seedlings are needed for breeding every year, but due to seedling quality or transportation problems, the aquaculture output is reduced or completely eliminated. The reason lies in (1) Seed selection: At present, it mainly relies on naked eye observation and selects high-quality seed ba...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 高保全刘萍李健王学忠
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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