Artificial seedling raising method for Pinctada margaritifera
A pearl oyster, artificial technology, applied in the fields of climate change adaptation, animal feed, animal feed, etc., can solve the problems of n. The effect of small volume, relatively stable, and cost reduction
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Embodiment 1
[0025] A method for artificial seedling cultivation of pearl oyster, comprising the steps of:
[0026] (1) Extract natural seawater from the sand filter well according to conventional methods, and filter through the secondary fine sand layer, the fine sand particle size is less than 0.1mm, and the thickness of the fine sand layer is 80cm;
[0027] (2) Select the pearl oyster with a shell age of 2 years and a shell height of 10cm. The nacre in the shell is bright iridescent, and the gonads are mature. The appearance of gonads of pearl oyster is yellow;
[0028] (3) Artificially inducing fertilization and oviposition of mother shellfish of Pinctada japonica by conventional methods to obtain fertilized eggs;
[0029] (4) The nursery pond maintains a light intensity of 150Lx;
[0030] Fertilized eggs develop to D-shaped larvae and start feeding the bait the next day, feeding 3 times a day (8:00-9:00, 16:00-17:00, 20:00-21:00), the amount of feeding It is advisable to observe th...
Embodiment 2
[0034] A method for artificial seedling cultivation of pearl oyster, comprising the steps of:
[0035] (1) Extract natural seawater from the sand filter well according to conventional methods, and filter through the secondary fine sand layer, the fine sand particle size is less than 0.1mm, and the thickness of the fine sand layer is 80cm;
[0036] (2) Select the pearl oyster with shell age 2 years old and shell height 10cm. The nacre in the shell is bright iridescent, and the gonads are mature. The appearance of gonads of pearl oyster is yellow;
[0037] (3) Artificially inducing fertilization and oviposition of mother shellfish of Pinctada japonica by conventional methods to obtain fertilized eggs;
[0038] (4) The nursery pond maintains a light intensity of 200Lx;
[0039] Fertilized eggs develop to D-shaped larvae and start feeding the bait the next day, feeding 3 times a day (8:00-9:00, 16:00-17:00, 20:00-21:00), the amount of feeding It is advisable to observe that mor...
Embodiment 3
[0043] A method for artificial seedling cultivation of pearl oyster, comprising the steps of:
[0044] (1) Extract natural seawater from the sand filter well according to conventional methods, and filter through the secondary fine sand layer, the fine sand particle size is less than 0.1mm, and the thickness of the fine sand layer is 80cm;
[0045] (2) Select the pearl oyster with shell age 2 years old and shell height 10cm. The nacre in the shell is bright iridescent, and the gonads are mature. The appearance of gonads of pearl oyster is yellow;
[0046] (3) Artificially inducing fertilization and oviposition of mother shellfish of Pinctada japonica by conventional methods to obtain fertilized eggs;
[0047] (4) The nursery pond maintains a light intensity of 250Lx;
[0048]Fertilized eggs develop to D-shaped larvae and start feeding the bait the next day, feeding 3 times a day (8:00-9:00, 16:00-17:00, 20:00-21:00), the amount of feeding It is advisable to observe that more...
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