Meretrix meretrix linnaeus belongs to the family of molluscs. Wide temperature shellfish, mostly distributed in flat sand beaches. The meat is delicious and nutritious, and it is deeply loved by people. With the improvement of people's living standards, the natural harvesting of wild seed can not meet the needs of the breeding industry. The development of culture and culture is beneficial.
1. Breeding of male and female worms of the genus Cinnamomum. Sexual maturity for two years. The reproductive period is May to July. Intimate individuals should select 4cm or more gonad fullness, first give 5-7 hours of dry stimulation, and then placed in room temperature flowing seawater for 3-5h water flow impact, and then put the intrinsic oysters into ammonia water of 0.15 ‰ -0.25 ‰. In soaking, ammonia seawater is prepared with NH 325% -28% of analytical ammonia water and filtered seawater at the above concentration. The water temperature during the stimulation was 26.5-28.5°C, the specific gravity of seawater was 1.020-1.022, and the pH was 8.4-8.9. The indulgent is active in ammonia seawater. After about 30 minutes soaking, there are discharge phenomena. Can also be used dry and repeated heating method to promote row of eggs, will be pro-pipa dry 30min to 2h, back to the water gradually warming, to 28-30 °C and then moved to room temperature water, and then continue to heat, so repeated, about after 1-2h The males began to discharge sperm, and successive females also discharged eggs. The eggs discharged by the male and female maggots settled on the bottom of the water. At this time, they could not be flushed. After 2 hours, they could be fertilized on their own. Dry artificial insemination can also be used. Fertilized eggs need to be washed 2-3 times using precipitation method. The fertilized egg has a higher hatching rate. The fertilized egg is left standing in the dark place. The temperature can be developed at 27.5-33°C for 12 hours. To D-shaped larvae. The D-shaped larvae generally enter the metamorphosis stage after 5 days and the metamorphosis to become juveniles on the 9th day.
Second, seedlings nursery camping benthic life, cultivation density is generally 10-20 / ml, at this time should be put on the appropriate attachment base (thickness 0.5cm), so as not to stick to each other, affecting the normal life and activities of the childish, Cause death. The larvae of the larvae should be selected as individuals with small individuals, poor motility, and high temperature tolerance. For example, when the larvae are D larvae, they should be fed with gold algae. As the larvae grow, they gradually pass over to Chaetoceros and Platymonas. It is best to use three kinds of algae mixed feeding, the density of gold algae 1 - 2 million / ml, Cape green algae 0.5 million / ml, flat algae 0.2 million / ml.
1. Breeding of male and female worms of the genus Cinnamomum. Sexual maturity for two years. The reproductive period is May to July. Intimate individuals should select 4cm or more gonad fullness, first give 5-7 hours of dry stimulation, and then placed in room temperature flowing seawater for 3-5h water flow impact, and then put the intrinsic oysters into ammonia water of 0.15 ‰ -0.25 ‰. In soaking, ammonia seawater is prepared with NH 325% -28% of analytical ammonia water and filtered seawater at the above concentration. The water temperature during the stimulation was 26.5-28.5°C, the specific gravity of seawater was 1.020-1.022, and the pH was 8.4-8.9. The indulgent is active in ammonia seawater. After about 30 minutes soaking, there are discharge phenomena. Can also be used dry and repeated heating method to promote row of eggs, will be pro-pipa dry 30min to 2h, back to the water gradually warming, to 28-30 °C and then moved to room temperature water, and then continue to heat, so repeated, about after 1-2h The males began to discharge sperm, and successive females also discharged eggs. The eggs discharged by the male and female maggots settled on the bottom of the water. At this time, they could not be flushed. After 2 hours, they could be fertilized on their own. Dry artificial insemination can also be used. Fertilized eggs need to be washed 2-3 times using precipitation method. The fertilized egg has a higher hatching rate. The fertilized egg is left standing in the dark place. The temperature can be developed at 27.5-33°C for 12 hours. To D-shaped larvae. The D-shaped larvae generally enter the metamorphosis stage after 5 days and the metamorphosis to become juveniles on the 9th day.
Second, seedlings nursery camping benthic life, cultivation density is generally 10-20 / ml, at this time should be put on the appropriate attachment base (thickness 0.5cm), so as not to stick to each other, affecting the normal life and activities of the childish, Cause death. The larvae of the larvae should be selected as individuals with small individuals, poor motility, and high temperature tolerance. For example, when the larvae are D larvae, they should be fed with gold algae. As the larvae grow, they gradually pass over to Chaetoceros and Platymonas. It is best to use three kinds of algae mixed feeding, the density of gold algae 1 - 2 million / ml, Cape green algae 0.5 million / ml, flat algae 0.2 million / ml.