Indoor earth covering temporary breeding method of perinereis aibuhitensis
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A double-tooth encircling nematode and soil-covering technology, which is applied in animal husbandry and other directions, can solve the problems of short survival period of nematodes, restricting research and development, and increasing the business risks of live nematode sellers. The method is simple, easy to master, and prolonged. The effect of survival time
Inactive Publication Date: 2013-04-10
MARINE BIOLOGY INST OF SHANDONG PROVINCE
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Problems solved by technology
In the process of scientific research, due to the short survival time of P. didentate worm, the development of relevant research using it as an experimental sample is limited.
In the sales process of clamworms, because of the short survival period of clamworms, the sales cycle of live clamworms is limited, which increases the operating risk of live clamworm sellers
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Embodiment 1
[0021] A method for temporary cultivation of clam worms covered with soil indoors, the specific method is as follows:
[0022] 1) Select the fine ooze from the habitat of the clam worm in the natural environment, sift out the sharp impurities, and place it in the icehouse at -20°C for 7 days;
[0023] 2) Lay the fine ooze after step 1) in the holding tank, and the laying thickness is 40cm;
[0024] 3) According to 100 strips / m 3 The stocking density of double-toothed clamworms is put in a suitable place to breed in the holding box temporarily;
[0025] 4) At 8:00 a.m. every day, fill in prepared seawater with a salinity of 26 for storage, the amount of filling is 5-15cm higher than the surface of the fine soft mud, and then put in quartz sand air stones to maintain the state of water storage for temporary storage The dissolved oxygen in the water environment in the tank is more than 10mg / L, and the stored seawater is discharged at 14:00 on the same day, and the aeration is s...
Embodiment 2
[0033] According to the method in embodiment 1, select 500 body lengths to be 15-25cm, body color luster, healthy double-toothed clamworm with normal vitality, be divided into 5 groups, each group 100, keep 45 days, observe respectively 30-day and 45-day results. The temporary care results are as follows:
[0034] Table 1 The results of 30-day storage in indoor circulating water for C.
[0035] death Survival rate % First group 2 98% Second Group 3 97% The third group 4 96% Fourth group 2 98% fifth group 2 98%
[0036] After raising for 30 days, it was found that the survival rate of the double-toothed clam worms raised by this method reached more than 96%.
[0037] Table 2 The results of 45 days of indoor circulating water storage for C.
[0038] death Survival rate % First group 5 95% Second Group 6 94% The third group 10 90% Fourth group 6 94% fifth group 7 93%
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Abstract
The invention relates to an indoor earth covering temporary breeding method of perinereis aibuhitensis. The method comprises the following specific steps of: (1) selecting fine soft mud, screening pointed impurities out, and placing into an ice chamber of 20 DEG C below zero for seven days; (2) paving the fine soft mud treated in the step (1) in a temporary breeding box, wherein the paving thickness is 40 centimeters; (3) putting the perinereis aibuhitensis into the temporary breeding box for breeding according to the breeding density of 100 pieces / m<3>; (4) filling prepared breeding seawater of which the salinity is 26 at 8:00 am every day till the water level of the breeding seawater is 5-15 centimeters higher than the surface of the fine soft mud and the dissolved oxygen of a water body environment in the temporary breeding box is over 10 mg / L, draining the breeding water at 2:00 pm every day, and stopping aeration after a water body is drained completely; and (5) after draining the breeding water according to the step (4), and feeding a powdery particle shrimp feed sieved and filtered through a 60-mesh sieve in an amount of 4g / 100 pieces per time. The indoor earth covering temporary breeding method of perinereis aibuhitensis disclosed by the invention is simple, and is easy to grasp; and on the premise of ensuring the quality of bred clamworms, the survival time of the bred perinereis aibuhitensis is prolonged.
Description
technical field [0001] The invention relates to a temporary raising method for the double-toothed clamworm, in particular to a technical method for temporarily raising the double-toothed clamworm indoors by using a small temporary raising box, and belongs to the technical field of marine biological breeding. Background technique [0002] Double-toothed clamworm ( Perinereis aibuhitensis ) belongs to the phylum Annelidae, polychaetes, and Nereidae. It likes to live in caves on calm and nutritious intertidal sandy beaches. It is the dominant species of intertidal muddy beach organisms in China and the main constituent organisms of Chinese offshore marine communities. have important ecological value. Nereis worm is a high-quality bait for fish, shrimp, crab, etc., and is rich in nutritional value. It is called "universal bait" and has extremely high economic value. At present, the CIF price in the Japanese market is as high as tens of thousands of dollars per ton, and it is a...
Claims
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