How to raise domestic crayfish? Crayfish is not only a kind of food, but also can be cultured and watched at home. In life, we all know that crayfish can be cultured in ponds, and crayfish grow faster. Therefore, we need to pay attention to raising domestic crayfish at home. Here is how to raise domestic crayfish.

How to raise domestic crayfish 1 Keep crayfish at home as an ornamental, and pay attention to the following points:

1, container

Crayfish can be raised in plastic pots, sorting boxes, acrylic or glass fish tanks. Note that the height of the container should not be lower than the body length of crayfish to prevent it from escaping.

2. Environment

If there is a filtering system, it can be arranged to simulate the natural environment, with roots, bamboo tubes, etc. placed for them to climb, and plants such as Eichhornia crassipes and Haematococcus verticillata planted for them to avoid, inhabit and feed, with a water depth of 0.5 meters. If there is no filtration system, it is recommended to raise them in bare tanks and put a small amount of plants. The water depth should be 3~5 cm. Change the water in time when the water quality becomes worse.

3. Quantity

Excessive stocking density of crayfish is easy to cause hypoxia, fighting disability and other phenomena, so the adult crayfish raised at home can have at most one per square decimeter. At the same time, too many males can easily lead to fights, so the ratio of male to female is 3:1.

Step 4: Feed

Crayfish is omnivorous. It likes to eat not only animal bait such as fresh miscellaneous fish, but also plant bait such as soybean, bean cake, corn, fruit and fresh aquatic plants. Family rearing can feed fish, snail, shrimp, watermelon and steamed bread. Under the condition of ensuring the quality, the daily feeding amount should generally be based on satiety, eating and leaving no residual bait. The water temperature in July ~ 10/October is suitable, which is the growing season of shrimp, and it should be fed twice a day, once in the morning and once in the evening. Feed 1 time every day in other seasons.

Because crayfish mainly eat at night, the feeding amount at night accounts for 70%~80% of the whole day's bait. When the weather is fine, cast more, and when it is hot and muggy, continuous rainy days or the water quality is too strong, cast less; A large number of shrimps throw less when molting, and throw more after molting.

Note: the newly molted shrimp is very soft, so it should be raised separately to prevent it from being used as food by other shrimps.

In fact, it is relatively simple to breed at home.

What are the following requirements for raising lobsters?

Water temperature: Lobsters inhabit low water temperature. The lowest water temperature in winter is about 5℃-6℃, which is suitable for lobster culture. If the water temperature is low, the maturity will be extended to 5-7 years. The suitable temperature for growth is 20℃-23℃, and lobster grows fastest in water at this temperature, so in winter when the water temperature drops, it is one of the methods to promote growth by using warm drainage.

Salinity: The suitable salinity range of lobster is 26.90‰-34.40‰, and it can live and metamorphose in seawater with low salinity of 23.50‰.

Bottom material: The metamorphosed larvae of lobsters turn to benthic life in order to avoid predation by natural enemies, and the gravel in the bottom material is extremely important as a place for lurking and feeding. After metamorphosis for 3-4 days, lobsters can burrow and lurk in sand with a particle size of 0.4- 1.00 mm. After 8 days of metamorphosis, it can lurk in sand with a particle size of 2.0-3.0 mm.

Growth rate: For the lobster population before 1 age, it is only necessary to lay the bottom of the pond with oyster shells, without putting them into artificial shelter nests, and feed them with mussels as bait. Since the 2nd instar, tetrachloroethylene pipes have been put into shelter nests, and the number of them is twice that of lobsters.

The influence of water quality on lobster production can not be ignored. The quality of water directly affects the healthy growth and development of lobsters. In the process of culture, the ph value of pond water is maintained at 7.5-8.5, and the transparency is 30-40 cm. It is necessary to add fresh water frequently, sprinkle quicklime solution regularly, adjust the water quality, and prevent diseases and incomplete shelling.

Feed the feed reasonably. Lobsters will kill each other when they are hungry and have insufficient food, so the feeding amount must be sufficient. Lobster feed is animal and plant feed. Plant feed is wheat, aquatic plants, rapeseed cakes, etc., and animal feed is miscellaneous fish, miscellaneous meat and livestock viscera, etc. Usually, the feeding time, feeding amount and feeding method are determined according to the habit of lobster lying in the daytime and coming out at night and the density of shrimp in the pond. Otherwise, it will increase the cost of feed and reduce the benefit of breeding.

What is the appropriate temperature for raising crayfish at home?

The shrimp also has strong hunger tolerance, which can generally endure hunger for 3 to 5 days; Generally, you won't starve to death if you don't eat for 20~30 days in autumn and winter. The optimum temperature for feeding is 25 ~ 30℃; When the water temperature is below 15℃, the activity is weakened; When the water temperature is below 10℃ or above 35℃, the food intake is obviously reduced; When the water temperature is below 8℃, enter the wintering period and stop eating. The life span of freshwater lobster males is generally 20 months, and that of females is 24 months.

How to raise crayfish when they are bought back?

Just find a bucket or basin for the bought crayfish and fill it with half a basin of water. There is no need to feed it at this time.

Therefore, we usually deal with crayfish in this way. If we buy them and raise them for a while, it will also help crayfish spit out waste and feel more at ease when eating them.

Another situation is that when we buy crayfish, sometimes children can keep a few for their children if they like.

Raising lobsters is actually the same as raising other small fish. Crayfish actually don't like being too clean and environmentally friendly, so we need to pay attention to this when preparing the environment for crayfish.

You can find some black soil, mix sand, put the black soil into water, and after deposition, pour a certain amount of sand into the basin, which forms a more suitable environment for crayfish. If you use water, you can't use simple tap water. What we need to use is well water, which is a bit difficult now, but some more expensive mineral water should also be replaced.

How to raise domestic crayfish 2. How to raise domestic crayfish?

1, first prepare a container, which can be raised with plastic pots, sorting boxes, acrylic boxes or glass fish tanks.

2. If there is a filtration system in the container, it can be arranged by simulating the natural environment. If there is no filtration system, it can be raised in bare tanks with a small amount of plants.

3. If adult crayfish are raised at home, one crayfish is generally raised per square decimeter, and the male-female ratio is about 3:1.

4. Crayfish has a miscellaneous diet, and can be fed with animal bait such as fresh fish, and plant bait such as soybeans, bean cakes, corn, fruits and fresh aquatic plants. In addition, foods such as fish, snail meat, shrimp meat, steamed bread, etc. can also be fed.

5. Generally, the growth season of shrimps is 7- 10 month, and it is enough to feed them once in the morning and twice a day. In other seasons, only 1 time is needed.

Second, how much water does domestic crayfish need?

1, generally speaking, the water depth of 3-5 cm is more suitable for lobster growth.

2. Generally, the cultured water should not be too deep, otherwise it may lead to difficulty in breathing of crayfish, and the water should not be too shallow, otherwise the temperature of the weather will affect the water temperature, which is not conducive to the growth of crayfish. It is more convenient to have a slope in the water to meet the requirements of crayfish for water.

3. When raising crayfish, you need to change water frequently, and you can also plant some aquatic plants, which can purify the pool to ensure the water quality, and also provide crayfish with space for rest and activities.

4. When cultivating crayfish, measures should be taken to prevent crayfish from escaping. Some nets can be installed at the bottom or around the pool, which can effectively prevent shrimps from crossing the pool.

5, crayfish will fight for food, so it is necessary to ensure that the food is sufficient when feeding, and the feed should be evenly sprinkled. Putting the whole piece into the pool will cause crayfish to fight for food.

How to raise domestic crayfish;

1. Buy a fish tank or aquarium, preferably made of glass, so that you can see the lobster's every move clearly. Get a lid to prevent lobsters from jumping out of the fish tank. Spread a layer of sand and put some pebbles to simulate the natural environment more realistically, so that lobsters can adapt to life in the fish tank. Don't bask in the sun, lobster is yin.

2. Crayfish is omnivorous, and both plant feed and animal feed can be eaten. Plant feed is the main feed. Plant feed includes plant stalks, aquatic plants, roots and leaves, epiphytic algae, filamentous algae, organic debris, etc. Animal feed includes aquatic insects and screws, mussels, fish, etc.

3. It is best to raise several lobsters together, so that the survival rate of lobsters is higher.

When the lobsters are shelled, they should be raised separately to prevent them from killing each other.

Extended data:

Edible lobster species:

1, sea lobster

The most significant lobster for human consumption is the big lobster in the genus Lobster, such as China South Sea Lobster (Palinurus versicolor). These lobsters can reach 30 to 45 cm in length (not counting tentacles) and their maximum weight can reach 5 kg.

The tail of live lobster must be rolled up slightly, if its tail is straight, the meat will not taste good after cooking. Generally, the meat of lobster is drier than that of crayfish. Lobsters turn red when cooked.

2. Freshwater lobster

First of all, a common misunderstanding that needs to be explained is that freshwater crayfish is not lobster. The scientific name of crayfish is Procambarus clarkii, but it looks more like a lobster.