A method for artificial insemination of wild Burmese shad and hatching of fertilized eggs
A technology of fertilized eggs and semen, applied in the preservation of human or animal body, climate change adaptation, fish farming, etc., can solve problems such as failure, and achieve the effect of improving the survival rate, overcoming the low fertilization rate, and making artificial insemination work reasonable.
Active Publication Date: 2021-11-16
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI +1
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Problems solved by technology
[0004] For now, the Burmese shad on the market mainly comes from wild fishing in nature, and there is no artificially raised Burmese shad.
In recent years, Myanmar, Bangladesh and other countries have also tried to carry out artificial insemination of wild Burmese shad and trial breeding of wild fry, but all ended in failure
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[0031] A method for artificial insemination of wild Burmese shad and hatching of fertilized eggs, using the following process steps:
[0032] 1. The capture and temporary raising of sexually mature wild Burmese shad
[0033] (1) Capture process. Choose the wild shad spawning season with a water temperature of 25-32°C. During the spring tide in the tide, use a fishing net with a mesh of 3-5cm to catch wild shad in the spawning ground. There are two tides in January, one at the beginning of the month and one at the end of the month. Each tide lasts about 10 days, and each time the net is lowered twice, each time lasts for 4 hours.
[0034] The fishing net is a polyethylene floating double-layer gillnet, the main size of the fishing net is 40m×40m, the net is woven with double dead knots, and the horizontal mesh is used. Such as figure 1 shown.
[0035] (2) Temporary breeding of broodstock. From the captured Burmese shad group, the live males with overflowing sperm are first...
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The invention discloses a method for artificial insemination and hatching of fertilized eggs of wild Burmese shad, comprising the following steps: Step 1, capturing and temporarily raising sexually mature wild Burmese shad, including the capturing process and temporary raising of broodstock; Step 2, performing artificial insemination , to obtain fertilized eggs; Step 3, transport the fertilized eggs; Step 4, hatch and open the fertilized eggs. The present invention captures sexually mature male and female broodstock on the basis of ascertaining the migration rule of the spawning population of wild Burmese shad, artificially inseminates the fertilized eggs after special treatment to obtain high-quality fertilized eggs, and transports the fertilized eggs to the hatching bucket at the same time with heat preservation and oxygen enrichment And hatching in running water; for the first time, the artificial insemination of Burmese shad and the trial breeding of wild fish fry were successfully carried out, which filled the gap in this field.
Description
technical field [0001] The invention belongs to the technical field of fish reproduction, and in particular relates to a method for artificial insemination of wild Burmese shad and hatching of fertilized eggs. Background technique [0002] Burmese shad, scientific name Tenualosa ilisha, belongs to the genus Shad in the family Herringaceae. It is beautiful and flat in shape, slightly resembling a bream and long, and white as silver in color. sexual fish. It is similar in appearance and meat quality to the Chinese shad (Tenualosa reevesii), which has been extinct for more than 20 years. It is the only remaining migratory fish of the shad genus in the world, and has high economic and academic value. [0003] Burmese shad is mainly distributed in the Indo-West Pacific region, including Myanmar, Bangladesh, India, and the Andaman Islands, and is also known as "Bangladesh fish". Due to its delicious taste and high nutritional value, Burmese shad is in great demand. Every year, ...
Claims
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IPC IPC(8): A01K61/17A01K61/10A01K63/04A01N1/02
CPCA01K63/045A01N1/0226A01K61/10A01K61/17Y02A40/81
Inventor 徐钢春徐跑胡光春邵乃麟高建操聂志娟李全杰孙毅王裕玉甘国正方德军
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI