Can crayfish be farmed in the Northeast? How to survive the winter?

It is more difficult to breed in the Northeast. Crayfish mate almost all year round, but peak in the spring of each year. Mating generally takes place in open areas of the water, and mating can be performed in a wide range of water temperatures, from 15 to 31.

During the wintering period, lobsters do not forage, but when the weather is sunny and warm, lobsters leave the burrow, a small amount of foraging, can be fed small trash fish and shrimp, snail clam meat, animal offal and other animal bait in a timely manner to supplement the body's nutrition.

Generally speaking, the climate in the north can raise crayfish. Crayfish has a wide range of adaptability, has a wide range of suitable growth temperatures, and can grow and develop normally when the water temperature is 10-30. It can also withstand high temperatures and severe cold, can withstand high temperatures above 40, and can also survive the winter safely when the temperature is below -14.

In the winter of the north, the temperature in the north is more than a month late, and it is more than a month early, and the open-air breeding of crayfish is not as good as in the south. Of course, the cost of farming in this way is much higher than in the south.

Generally, the crayfish pond should be rectangular, with an unlimited area, which is easy to manage. The north is sandy, so as long as there is water and drainage. Around the pond, you can use asbestos tiles, plastic film, etc. to surround a circle, and bury about 30 cm down with the horizontal plane as the boundary to prevent crayfish from burrowing and escaping.

It shouldn't work, it's too cold in the Northeast in winter.

It is impossible to move indoors to a large pond like that open-air farm, and lobsters can tolerate a minimum temperature of -5 degrees Celsius, and in the winter of the Northeast it can reach -30 degrees. Unless you buy seedlings in the spring and sell them in the summer. It's expensive, and you can't keep the seed.

It is also possible to use a greenhouse. You can refer to the wintering method of giant river prawn. It is best to keep the temperature at 18 degrees.

It's hard to go to the south to report a pool of sugar.

I was born in 1983, and when I was a child, there were wild crayfish in the mountains of Benxi. We are commonly known as lawoo, but in recent years, due to serious environmental damage, wild crayfish basically disappeared 20 years ago. Now it is no longer visible.

In the Northeast, the water level will not freeze if it is deepened in winter, and the bottom of the water is also above zero. It's just that shrimp don't grow in winter.

1. It is not suitable for breeding crayfish. Low-temperature lobsters in the Northeast cannot overwinter, and lobsters grow faster in summer.

2. Crayfish is an omnivore, mainly eating animals, small fish, shrimp, plankton, benthic organisms, algae can be used as its food. According to shrimp farmers, crayfish are very reproductive, and they ovulate two to three times a year. It generally takes only 2 months from the hatching of shrimp eggs to the maturity of crayfish.

1. April to June every year is the peak season for seedlings, and the time is in the rice field transplanting and slow seedling period in the cold areas of Northeast China, which is suitable for seedlings at this time, and crayfish seedlings are low in June, suitable for breeding.

2. The climatic conditions in Northeast China are suitable for stubble breeding, that is, seedlings are released at the beginning of summer, harvested at the end of summer, and sold in different seasons. Moreover, the planting area of paddy fields in Northeast China exceeds 2 million hectares, and the freshwater pond aquaculture area exceeds 10,000 hectares, and the breeding space is very broad.

3. The crayfish breeding mode in the cold area of the northeast should choose the main pond breeding mode, and when the pond is selected, it should meet the fishing and breeding standards, and the pond ridge is high and wide (more than 4m wide) and solid, and there is no leakage.

4. In addition, the shrimp seedlings should be allowed to stand for a period of time at the edge of the pond before seedling, and then the shrimp seedlings should be disinfected and treated with anti-stress when the surface temperature of the shrimp body is close to the temperature of the pond water.