CATDOLL : CATDOLL: Can silver snowfish reproduce on their own?

Can silver snowfish reproduce on their own?

I think that silver snowfish can certainly reproduce on their own, and all biological species in nature need to reproduce on their own. The breeding of silver cod requires skills, and for the breeding of silver cod fry, many details need to be paid attention to.

Silver cod is not a real cod, but its nutritional value is not low. Silver cod is actually sablefish. The reproduction method of Qingxiang sablefish is that it will develop to sexual maturity after 10 to 15 years, and the spawning season of the forest is in spring every year.

Silver cod is OK, many of them are farmed now.

Silver cod is a deep-sea fish, so you cannot farm it. It needs to live in the deep sea.

Freshwater cod breeding technology, what is the suitable temperature

1. Pond treatment: 15 days before stocking, pour new water into the pond, and then use 80-100kg of quicklime per mu to sprinkle the whole pond. 2. Stocking density: From spring to summer, stock 150,000 to 200,000 spring fingerlings per mu, from summer to autumn, stock 15,000 to 30,000 fingerlings per mu, and raise 200-300 silver carp at the same time, from autumn to commercial fish, stock 1,800 to 2,300 autumn fingerlings per mu, and raise silver carp and bighead carp at the same time.

1. Freshwater cod breeding technology

1. Pond

(1) Before stocking, drain the water from the pond and expose it to the sun for 2-3 days.

(1) About 15 days before stocking, fill the pond with new water to a depth of 0.3m, then sprinkle 80-100kg of quicklime per acre of pond, or sprinkle 15-18kg of bleaching powder slurry per acre of pond.

(2) About 2-3 days after disinfection, apply 200-300 kg of decomposed chicken manure per acre of pond.

2. Stocking density

(1) From water flower to summer flower, 150,000 to 200,000 water flower fingerlings are stocked per acre of pond. After about 30 days of breeding, 120,000 to 160,000 summer flower fingerlings (about 3-4 cm) can be obtained.

(2) From summer to autumn, 15,000 to 30,000 fingerlings are stocked per mu of pond, and 200 to 300 silver carp of the same age are raised at the same time. After about 90 days of breeding, 14,000 to 28,000 autumn fish fingerlings (80-100g/fish) can be obtained.

(3) From autumn flakes fingerlings to commercial fish, 1800-2300 autumn flakes fingerlings are stocked per acre of pond, and at the same time, 15-20 silver carp and 10-15 bighead carp are raised in the front hall.

3. Feeding

(1) From the water flower stage to the summer flower stage, the protein content of the feed is controlled at about 42%. From the summer flower stage to the autumn flake fingerling stage, the protein content of the feed is controlled at about 38%. From the autumn flake fingerling stage to the commercial fingerling stage, the protein content of the feed is controlled at about 35%.

(2) When the water temperature is around 15°C, the daily feed amount is 0.2-0.3% of the fish body weight. When the water temperature is 16-20°C, the daily feed amount is 0.6-1.2% of the fish body weight. When the water temperature is 21-25°C, the daily feed amount is 1.2-3% of the fish body weight. When the water temperature is 26-30°C, the daily feed amount is 3-6% of the fish body weight.

(3) From the water flower to summer flower stage, feed 3-4 times a day, and it is best if the fish eat all the food within 50 minutes after feeding. From summer flower to autumn flake fingerlings, feed 2-3 times a day, and it is best if the fish eat all the food within 60 minutes after feeding. From autumn flake fingerlings to commercial fingerlings, feed 2 times a day, and it is best if the fish eat all the food within 60 minutes after feeding.

(4) If feeding is done more than twice a day, the amount fed in the morning should account for about 40-45% of the daily feeding amount.

2. What is the suitable temperature for freshwater silver cod?

1. Freshwater silver cod (large scale) can survive in an environment of 1-30°C. The suitable water temperature for growth is 18-27°C, and the optimal water temperature for growth is 24-27°C.

2. When the water temperature is below 15°C, freshwater silver cod almost stop eating and gather in the deep part of the pond to hibernate (during the winter, the water temperature should be kept above 4°C).

3. Freshwater silver cod is a salt-alkali tolerant farmed fish. When the salinity in the water is lower than 3.2‰ and the alkalinity is lower than 14.32mmol/L, the embryonic development of freshwater silver cod is not affected. When the salinity in the water is lower than 5.1% and the alkalinity is lower than 14.32mmol/L, the fry of freshwater silver cod are not affected.

4. During breeding, it is recommended that the salinity of the breeding water should not exceed 6‰ and the alkalinity should not exceed 25.1mmol/L.

1. Pond treatment: 15 days before stocking, pour new water into the pond, and then use 80-100kg of quicklime per mu to sprinkle the whole pond. 2. Stocking density: From spring to summer, stock 150,000 to 200,000 spring fingerlings per mu, from summer to autumn, stock 15,000 to 30,000 fingerlings per mu, and raise 200-300 silver carp at the same time, from autumn to commercial fish, stock 1,800 to 2,300 autumn fingerlings per mu, and raise silver carp and bighead carp at the same time.

1. Freshwater cod breeding technology

1. Pond

(1) Before stocking, drain the water from the pond and expose it to the sun for 2-3 days.

(1) About 15 days before stocking, fill the pond with new water to a depth of 0.3m, then sprinkle 80-100kg of quicklime per acre of pond, or sprinkle 15-18kg of bleaching powder slurry per acre of pond.

(2) About 2-3 days after disinfection, apply 200-300 kg of decomposed chicken manure per acre of pond.

2. Stocking density

(1) From water flower to summer flower, 150,000 to 200,000 water flower fingerlings are stocked per acre of pond. After about 30 days of breeding, 120,000 to 160,000 summer flower fingerlings (about 3-4 cm) can be obtained.

(2) From summer to autumn, 15,000 to 30,000 fingerlings are stocked per mu of pond, and 200 to 300 silver carp of the same age are raised at the same time. After about 90 days of breeding, 14,000 to 28,000 autumn fish fingerlings (80-100g/fish) can be obtained.

(3) From autumn flake fingerlings to commercial fish, 1800-2300 autumn flake fingerlings are stocked per acre of pond, along with 15-20 silver carp and 10-15 bighead carp.

3. Feeding

(1) From the water flower stage to the summer flower stage, the protein content of the feed should be controlled at about 42%. From the summer flower stage to the autumn flake fingerling stage, the protein content of the feed should be controlled at about 38%. From the autumn flake fingerling stage to the commercial fingerling stage, the protein content of the feed should be controlled at about 35%.

(2) When the water temperature is around 15°C, the daily feed amount is 0.2-0.3% of the fish body weight. When the water temperature is 16-20°C, the daily feed amount is 0.6-1.2% of the fish body weight. When the water temperature is 21-25°C, the daily feed amount is 1.2-3% of the fish body weight. When the water temperature is 26-30°C, the daily feed amount is 3-6% of the fish body weight.

(3) From the water flower to summer flower stage, feed 3-4 times a day, and it is best if the fish eat all the food within 50 minutes after feeding. From summer flower to autumn flake fingerlings, feed 2-3 times a day, and it is best if the fish eat all the food within 60 minutes after feeding. From autumn flake fingerlings to commercial fingerlings, feed 2 times a day, and it is best if the fish eat all the food within 60 minutes after feeding.

(4) If feeding is done more than twice a day, the amount fed in the morning should account for about 40-45% of the daily feeding amount.

2. What is the suitable temperature for freshwater silver cod?

1. Freshwater silver cod (large scale) can survive in an environment of 1-30°C. The suitable water temperature for its growth is 18-27°C, and the optimal water temperature for its growth is 24-27°C.

2. When the water temperature is below 15°C, freshwater silver cod almost stop eating and gather in the deep part of the pond to hibernate (during the winter, the water temperature should be kept above 4°C).

3. Freshwater silver cod is a salt-alkali tolerant farmed fish. When the salinity in the water is lower than 3.2‰ and the alkalinity is lower than 14.32mmol/L, the embryonic development of freshwater silver cod is not affected. When the salinity in the water is lower than 5.1% and the alkalinity is lower than 14.32mmol/L, the fry of freshwater silver cod are not affected.

4. During breeding, it is recommended that the salinity of the breeding water should not exceed 6‰ and the alkalinity should not exceed 25.1mmol/L.