How many lobsters give birth to calves a year, and how many at one time? Do male lobsters eat babies

A lobster gives birth to 4 or 5 pups a year, but this pup is generally a few at a time, and it is necessary to clean up the pomelo in time.

The lobster mating season is generally from late April to July, and the peak of group mating is in May, when the water temperature is above 15, the crayfish begin to mate, and the juvenile shrimp gradually hatch after September. Juvenile shrimp are generally attached to the abdomen of the female shrimp and swim on the feet, and complete the growth and development process of the larval stage under the protection of the mother.

When the water temperature rises above 20, broodstock begin to spawn, and the spawning season lasts for 6 months, and can spawn 3-4 times a year.

If the male lobster is hungry, he will eat the same kind of large lobster, and the newly hatched crayfish will also eat it.

Generally speaking, the Norwegian lobster (commonly known as European lobster, is the main species in the market, and the individual life span is the highest among the common species, and the individual is also the largest) has a lifespan of 30-40 rooms. Individuals around 50 years of age have been reported. I don't know if it's true or not. Pending**.

Lobsters are a type that spawns multiple times a year. When the water temperature rises above 20, broodstock begin to spawn, and the spawning season can last for 6 months in eastern Guangdong, and can spawn 3-4 times a year. The amount of eggs laid varies depending on the size of the individual and the degree of gonadal development, but generally 300-1000 eggs are laid each time.

Females with larger individuals have more eggs. During mating, the female shrimp lies on the surface of the water, the male shrimp clamps the female shrimp's forefoot with the dragon's foot, and the female shrimp inserts the handover device into the female body with the foot of the male shrimp, and the mating time is 10-30 minutes. 3-10 hours after mating, the female begins to lay eggs, which are one-time spawning, and the eggs produced adhere to the bristles of the gastropod.

The amount of eggs to hold varies with the size of the individual. The length of embryonic development is closely related to the water temperature, the higher the water temperature is shorter, and the lower the water temperature is the longer the incubation time. The hatchlings remain attached to the broodstock's swimming feet and grow under the protection of the mother for a period of time.

Juvenile lobster larvae are attached to the abdomen and feet of the mother to grow to different stages, and the largest larvae are centimeters long. After the hatching of lobster larvae in early autumn of the first year, the growth, development and overwintering process of lobster larvae are epiphytic in the mother's abdomen, and they do not leave the mother until the spring of the second year. This method of breeding offspring of lobster ensures a high survival rate of offspring.

How many lobsters can be raised in an acre of land, how many lobsters can be raised in an acre of land, how many crayfish can be raised in an acre of pond, and how much money can you make in raising lobsters in an acre of land? Generally speaking, an acre of land can produce 500-600 catties of crayfish, if intensive farming, the yield will be high, but the corresponding investment is relatively large. If it is lower than this number, it means that your shrimp seedlings are not enough, the density of shrimp seedlings is related to the size of shrimp seedlings and the depth of water.

How many catties of shrimp seedlings can be raised in an acre of land? How many shrimp seedlings should be put in an acre of land How many shrimp seedlings should be put in an acre of land.

The density of seedlings depends on the size of the seed, the area of the shrimp pond, the depth of the pond, the condition of the bottom of the pond, the conditions of water exchange, the type of bait, the feeding method, the production skills and the level of management, and should also refer to the yield requirements and specifications of the shrimp farmers to determine. The amount of seedlings can be calculated with reference to the following formula:

Seedling amount = (planned seedling yield (kg) mantissa required to grow 1 kg) Estimated survival rate.

where: the planned yield per mu can refer to the annual yield of neighboring areas; The number of tails of 1 kg of shrimp can be calculated as 30 50 (body length 12 15 cm); The survival rate is calculated as 50 70, and the intermediate shrimp fry is calculated as 85.

Under normal circumstances, under the conditions of shrimp seedlings, superior water exchange conditions, bait and high level of feeding management, the amount of seedlings per mu can be about 20,000 (should not exceed 10,000). After the middle cultivation of shrimp seedlings (about centimeters in length), the number of seedlings per mu is controlled between 8000 and 12000.