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1. Create a good environment for lobster growth.
Lobster love to play holes, the depth of the general cave is 50-80cm, part of the cave depth is more than 1m, in order to avoid digging holes and escaping, the width of the ridge around the aquaculture water body should be above, and set up a high anti-escape net or a smooth anti-escape wall on the inner wall, anti-escape board, and the purse seine should also be buried 2m deep, in order to prevent the lobster from escaping. At the same time, the river pond simulates the ecological environment of lobsters under natural conditions, and 10-15% of aquatic weeds and hidden objects are planted shallow on the edge of the pond to create an environment for lobsters to inhabit and shell, and reduce mutual killing. The impact of water quality on lobster production can not be ignored, in the breeding process, the pH value of the pool water is kept between, the transparency is 30-40cm, new water should be added frequently, and the quicklime solution should be splashed regularly to adjust the water quality to prevent the occurrence of diseases and shelling.
2. Feed reasonably.
Lobsters can kill each other when they are hungry and underfed, so be sure to feed them adequately. The feed of lobsters is animal and plant feed. The plant-based feed is wheat, aquatic weeds, rapeseed cake, etc., and the animal-based feed is trash fish, miscellaneous meat and offal.
Usually according to the lobster's diurnal and nocturnal habits and the density of shrimp in the pond to determine the feeding time, feeding amount and feeding method.
3. Scientific fishing.
Under the condition of suitable temperature and sufficient feed, juvenile shrimp can grow to commercial specifications in 60-90 days. The seedlings are released in March, and the rotation fishing begins around June, and the big ones are sold and the small ones are kept.
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If you can't feed it, buy it back and clean it up as soon as possible.
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The lobster bought back is directly placed in the foam box with ice cubes, which is also related to the low temperature to make it in a semi-hibernation state, every day to pay attention to the degree of melting of the ice cubes, change the ice in time, and pick out the dead shrimp, generally 3 4 days is no problem.
Let's look at other ways to preserve crayfish:
After buying back the live lobster, we can prepare a large pot or ** and pour the lobster into it. Note that you can't use tap water directly, we can use tap water overnight, so that the lobster will be more adaptable.
If possible, it is better to use a plastic foam box, because this kind of box is more breathable and the windproof performance of the box is also good, we can press the lobster down the belly in the same direction, each closer to a bit, the drain should be clean and neat, and rinse with clean water before putting it in.
We can also use the pool and glass fish tank for lobster storage, the method is actually very simple, we first rinse the lobster, and then use a ventilation pump to pour the lobster directly into the pool, or oxygenate the glass fish tank, which can be stored for about ten days.
We need to remember that once the lobster is out of the water, if the lobster is able to maintain humidity and temperature, the average lobster will survive for a long time, but if it comes out of the water and then put it back into the water, it will be difficult to survive and preserve.
Lobster is a seasonal commodity, and it is usually cheaper in the summer, so if you want to store lobster for a long time, it is recommended that you consider using the freezing method, but it will take a little longer to freeze and the taste will be reduced.
Of course, the most ideal and best way to preserve lobster is to process it, the main processing method is to cook the lobster completely, or you can fry the lobster, after processing, we can use a fresh box to put the lobster in a safe place and put it in the refrigerator.
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Putting it in a snakeskin pocket and drenching it can keep the lobster alive for a long time.
You can put it directly in a basin of water, add a pinch of salt, drizzle a few drops of cooking oil, don't feed anything, and you can keep it for two or three days.
How to choose a lobster:
First of all, be sure to choose raw live shrimp.
Secondly, a good lobster should have an even head and body, a thin and slippery shell, a large body, and a tight gap between the shrimp head and the torso.
Do not eat dead lobsters.
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Crayfish can be put in the water or not in the water when they are bought. But as soon as possible to deal with the food, so that the ingredients will be fresh, the taste will be more delicious, you can put the crayfish in the vegetable washing pool, put a little water, do not overflow the shrimp, just a light layer at the bottom of the pool, you can put it for five or six days.
If you don't want the crayfish to last too long, you can do it for 2 or 3 days. First of all, after buying the live lobster, you can directly put it in the water basin, add a little salt, pour a few drops of cooking oil, don't feed anything, you can keep it for two or three days, not only can keep the lobster fresh, but also make the lobster spit out the sediment in the body, and reduce a lot of trouble for cleaning the crayfish.
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If you want to put it for 3-5 days, it is recommended to put the shirt in the water, and at the same time you can add an appropriate amount of salt and a few drops of cooking oil to the water, and you don't need to feed anything.
Put the crayfish in the water, because the oxygen in the water is limited, so you don't need to put too much water, so it is better not to submerge the shrimp.
After raising the crayfish in water with salt and cooking oil for a few days, it can not only keep the crayfish fresh, but also make the crayfish spit out the mud in the body.
Crayfish is a seafood product, and after cooking, it will be left for too long, and it will be contaminated by bacteria and other microorganisms after a long time.
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<>1. Add salt and cooking oil to the pot, buy the live lobster, you can put it directly in the water basin and add a little salt, pour a few hail drops of cooking oil, don't feed anything, you can keep the lobster fresh for two or three days, so that the lobster spits out the sediment in the body.
2. Pour into the pool with an air pump, rinse the lobster, and pour it directly into the pool with an air pump. It is necessary to pay attention not to put too much lobster, and you need to change the water in the morning and evening. This method of storage can store lobsters for 5-10 days.
3. Crayfish net pocket feeding method, put the crayfish in the net pocket, can not add water, can not dry, just use the net pocket to put the stall open, can be put for several days. If you add water, you can only add a little bit, don't submerge the shrimp, just keep it moist.
4. Put the belly down box and add snowflake ice, it is better to store it in a foam box, the plastic foam box is windproof, and the shrimp are lined up with the belly down (the belly is easy to die) Each box puts about 30 pounds of lobsters, rinse them clean with water, add snowflake ice (smash the ice cubes to pieces) Add 4 - 5 pounds of ice to each box, cover the lid, and put it away. Do this with ice once in the morning and once in the evening. This method of storage allows lobsters to be stored for 5 days to 1 week.
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1. Select the site: increase the old paddy field embankment, clean up the debris, and install fine nets as the site for breeding crayfish. 2. Put shrimp seedlings:
40 kg of crayfish seedlings are fed per acre. 3. Reasonable feeding: feed crayfish with protein-rich food.
4. Regular inspection: strengthen the fence in time before the rainy season, and replace the water quality in the paddy field in time.
1. Choose a venue
When breeding live crayfish bought, the first thing to choose is to choose a suitable site, you can raise the embankment of the old paddy field, and then clean up the debris in it, and install fine nets around it to prevent the crayfish from escaping, and press the barbed wire at the drainage outlet to avoid enemy invasion.
2. Put shrimp seedlings:
Before putting shrimp seedlings, pour fertilizer into the paddy field, and after the water quality becomes yellow-green and clear, then plant plankton such as algae in the field, when the population of plankton multiplies and grows, pour the shrimp seedlings into the water, and feed 40 kg of shrimp seedlings per acre.
3. Reasonable feeding
Crayfish are relatively small in size during the seedling stage, and their demand for nutrients is not high, and they generally feed on plankton in the water, and when they become adults, they can be fed protein-rich foods, such as animal offal, shrimp feed, etc.
4. Regular inspections
In the process of crayfish breeding, it is necessary to pay attention to regular inspection of paddy fields, especially in the redundant season, the water level is very easy, in order to prevent lobsters from escaping, it is necessary to strengthen the fence in time, and regularly replace the water quality according to the growth of the shrimp group.
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First of all, after buying the crayfish, put it directly in the basin. Then add a pinch of salt, drizzle a few drops of cooking oil, don't feed anything during the period, and can easily raise overnight. This method can not only maintain the freshness of the crayfish, but also make the lobster spit out the sediment in the body, saving a lot of trouble for cleaning the crayfish.
During the period of raising crayfish, you can give it some green cabbage leaves, steamed buns, and diced meat to eat.
Because crayfish are more aggressive, try to spread them out in large basins, and put an appropriate amount of water in large basins, which can not only reduce the number of deaths, but also allow crayfish to discharge waste from their bodies. The large basin is to leave space for the crayfish to move around. And crayfish prefer dark and damp places, you can cover the basin with a black plastic bag, reduce the tension and reduce the chance of fighting.
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