The shorter the breeding cycle, the better the benefit, how long is the breeding cycle of local shri

The culture cycle of Penaeus vannamei shrimp is generally from April to October, and it can be marketed after rapid growth for more than three months. Their growth cycle has a certain relationship with seedlings, planting density, weather, daily management and disease control. What are the key points of shrimp farming?

1. Adjustment of pond water color.

The ideal water color for farmed white shrimp is a yellow-green color or a similar color formed by green algae or diatoms. The conventional control method is to apply phosphorus fertilizer and ammonia fertilizer according to the proportion of pool water. In the middle and late stages of culture, the water color gradually darkens due to the increase in bait residues and shrimp excrement.

At this time, it is necessary to change the water appropriately, inject water or add a certain amount of zeolite powder or quicklime to control the water color.

Second, it is to maintain the ecological balance of the shrimp pond.

Practice has proved that in any pond with little plankton, white shrimp will develop disease very early, and the disease may occur when the body length is only 5 cm. Generally, after three days of pond disinfection, 1 kg of active microecological agents are mixed into the sand, sprinkled at the bottom of the pond, and then the water is released, and the bottom cooling agent is sprinkled all over the pond when fertilizing the water, which can effectively maintain the ecological balance of the shrimp pond.

3. Control the parameters of the pool water.

In the process of shrimp farming, it is necessary to pay attention to adjusting the pH value, which should not be too high, otherwise it will increase the toxicity of ammonia nitrogen and inhibit the growth of shrimp. As the vannamei shrimp continues to grow, the demand for dissolved oxygen in the water gradually increases for farmed shrimp. The aerator should be turned on intermittently initially depending on the water quality, and then gradually increase the start-up time.

In the middle and later stages, intensive aquaculture ponds and industrial high-density aquaculture ponds must be opened all the way to ensure that there is enough dissolved oxygen in the water. The transparency should be kept at about 35 cm in the early stage of cultivation, and 35 to 60 cm in the middle and late stages. If the transparency is less than 20 cm, you need to change the water at this time, or add quicklime.

If the transparency is too high, appropriate nitrogen and phosphorus fertilizers can be applied to regulate the water quality.

Fourth, feeding. Generally, you can feed cheap shellfish or fish puree, and you can also feed some compound feed. The amount of feeding should be judged comprehensively according to the size of the shrimp, survival rate, water quality, environment, feed quality and other factors.

Feeding multiple times a day, 60% to 70% of the feeding volume at night. Visit the pond three times a day, pay attention to the water color, the activity, growth and feeding of the white shrimp, visit once in the morning, adjust the feeding amount and whether to turn on the aerator in the evening.

5. Conditions for shrimp farming.

1.First of all, if you are raising green shrimp, location selection is an important premise. When raising shrimp, the surrounding water source should also be of high quality, and it is best not to have other farmed shrimp near the shrimp pond, so that the shrimp can have a better water source to change the water during the peak growth period.

2.When raising shrimp, you need to keep the pH value of the pool water in between, but be careful not to be higher. In addition, fresh water should be injected frequently to maintain water quality transparency at around 30-40 cm.

Be sure to regularly sprinkle quicklime solution into the shrimp pond, adjust the water quality, disinfect, and prevent diseases and unsuccessful shelling. When the density of shrimp in the pond is too high, pay attention to the oxygen content in the water and install an aeration pump.

The breeding cycle of soil shrimp is between 4 months and 10 months, and some can even reach three months, according to the different species, the breeding cycle is also different, and there is a certain relationship with the water temperature and weather and disease prevention and control in the daily breeding process, there are many uncertain factors.

Generally, it is about two months or three months, but the type of each shrimp is different, the growth cycle is completely different, the temperature of breeding should be grasped at about 10 degrees to 33 degrees, and high-quality water sources should be selected to ensure the oxygen in the water.

The cycle of shrimp farming is generally about two and a half months, and two crops can be cultivated every year, and the income is still considerable.

Shrimp seedling input: Generally, shrimp seedlings only need about 120 catties per mu, and the ** of shrimp seedlings on the market is about 48 yuan catties, and the input cost of one mu of shrimp seedlings needs 5800 yuan. Pond rental:

One acre of pond costs about 1,000 yuan. Labor cost: The shrimp breeding technology is relatively simple, about 1200 yuan per mu.

Bait cost: The feeding habits of shrimp are relatively mixed, about 2,000 yuan, so the cost of breeding one mu of shrimp is about 10,000 yuan.

First, the investment cost of one mu of shrimp farming

1. Shrimp seedling input: due to the strong reproductive ability of shrimp, generally only about 120 kg of shrimp seedlings per mu are needed, and the ** of shrimp seedlings on the market is about 48 yuan catty, so the input cost of one mu of shrimp seedlings needs to be about 5800 yuan.

2. Pond rent: The pond is generally 1,000 yuan per mu, but its price is mainly based on the local market and the quality of the pond. If the farmer has his own pond, he does not need this investment.

3. Labor cost: The breeding technology of shrimp is relatively simple, if the farmer has breeding experience, there is no need to ask for labor, but if you need to ask for labor, it is about 1200 yuan per mu.

4. Bait cost: Due to the miscellaneous feeding habits of shrimp, it is necessary to invest some cultivated plankton and small fish and shrimp in aquaculture, or plant some melons and beans and vegetables as bait for shrimp. Therefore, the feed cost is about 2,000 yuan.

5. According to the above calculation of shrimp seedlings, ponds, artificial and bait, the cost of cultivating one mu of shrimp is about 10,000 yuan.

2. What conditions are needed for shrimp farming

1. First of all, if you are raising freshwater shrimp, then site selection is an important premise. When raising shrimp, the surrounding water source should also be of high quality, and it is best not to have other farmed shrimp near the shrimp pond, so that the shrimp can ensure that there is a better water source for water exchange during the peak growth period.

2. When raising shrimp, it is necessary to keep the pH value of the pool water quality between, but it should be noted that it should not be higher, and new water should be injected frequently, so as to keep the transparency of the water quality at about 30-40 cm. Be sure to regularly sprinkle quicklime solution into the shrimp pond to adjust the water quality and disinfect it to prevent diseases and unsuccessful shelling. When the density of shrimp culture in the pond is too large, it is also necessary to pay attention to the oxygen content in the water and install an aeration pump.

3. How long is the cycle of shrimp farming

1. Under normal circumstances, the breeding cycle of shrimp is 2-3 months. However, due to the different species, the shrimp breeding cycle will also be different, for example, the cultivation cycle of Penaeus vannamei shrimp is about 3 months, and the breeding cycle of Roche shrimp is 2-4 months. When raising shrimp, it is necessary to start catching at the right time, usually when the shrimp body grows to 4-5 cm, it can be marketed.

2. When stocking shrimp seedlings, it should be carried out on cloudy or rainy days, and stocking should be carried out in the morning and evening on sunny days. This can avoid direct sunlight and affect the survival rate of stocking, and the shrimp seedlings should be released at one time.

Shrimp-rice co-cultivation means that during the cultivation of rice, crayfish and rice are symbiotic and co-cultured. The shrimp and rice rotation is different, basically rice and crayfish are staggered within a year, that is to say, rice is planted in June and September, and broodstock is put in September, and the shrimp and rice co-cropping mode is to dig a ring ditch in the rice field, raise shrimp and plant a season of rice throughout the year, and you can harvest one season of rice and two seasons of shrimp in a year. Broodstock and shrimp seedlings are harvested in the first half of the year, and adult shrimp and rice are harvested in the second half of the year.

Generally, the yield per mu is 300 kg of crayfish 400 kg, and rice is 1000 kg 1200 kg.

For example, rice and shrimp rotation is to use the water body of the paddy field to plant a single season of rice, and to breed crayfish after the rice harvest in September, do not plant rice in the second year, and plant another season of rice in the third year, a cycle every three years, and so on. Rice and shrimp rotation has the use of maintaining the ecological environment of rice and shrimp farming, the integration of breeding and breeding, good operation, the output of shrimp seedlings per mu is more than 500 catties, and the output of adult shrimp is more than 600 catties, but the technical requirements are high, the adult shrimp is small, and the success rate is low.

Shrimp farming in rice fields can raise 3 to 4 recommended stubbles a year. Lobsters are generally on the market for about 30 days and no more than 45 days. According to the amount of dosing to determine the yield per mu.

Generally, 50 to 80 catties of shrimp seedlings are thrown per mu. 50 to 60 tails per catty, and the yield per stubble is about 200 catties. Twice a year Shrimp is a fragile and extremely easy to reproduce species, small shrimp are easy to die if they are not successfully farmed, and once they succeed, they will reproduce rapidly, which is very powerful!

There are many farmers who think that crayfish can reproduce 2-3 times a year, and can put broodstock in November or March of the following year, but in fact, research shows that crayfish can only reproduce once a year, and they are all reproduced in autumn and winter. Female shrimp will only lay eggs once a year, greenhouse mode, the most slaughtered times, because it can be constant temperature, can be out of season shrimp, crayfish do not need to hibernate, so the suitable growth time of crayfish is longer, generally can produce 3 4 batches of shrimp.

Yes. If the environment of shrimp farming is particularly good, the feed of shrimp is also particularly sufficient, so that the growth of shrimp will be particularly good in a year, and the income will be particularly large.

It is definitely possible to raise several stubbles a year, and the shrimp may mature in 3 to 6 months.

Under normal circumstances, you can raise two stubbles a year, and some can also raise three stubbles, which also depends on the type you breed and the temperature of your pond.

Yes, the breeding cycle of Jiwei shrimp is indeed relatively long, about 100 to 120 days. So it's a very patient test.

The breeding cycle is relatively short, and under normal circumstances, you only need to breed for a few months to choose to sell, and the most important thing is that the requirements for the surrounding environment are not very strict, so in this case, you can choose to breed with confidence.

Yes. Because the meat quality of this shrimp is very good, the growth cycle is relatively long, but the yield is also very high.

It's not slow, it's still okay relatively speaking, and if you breed shrimp in the cycle, the income will be very good, and it will also make the economy have a fast income.

First of all, let's take a look at shrimp seedlings: generally shrimp seedlings only need about 120 catties per mu, and the ** of shrimp seedlings on the market is about 48 yuan per catty, the input cost of one mu of shrimp seedlings needs 5,800 yuan, and the pond rent needs about 1,000 yuan per mu of ponds, and the shrimp breeding technology of labor cost is relatively simple, and the feeding properties under the cost of about 1,200 yuan per mu are more miscellaneous, about 2,000 yuan, so the cost of shrimp farming is about 10,000 yuan. <>

Let's take a look at the conditions for shrimp farming:

1.First of all, shrimp farming needs a surrounding water source of relatively high quality, and it is best not to have other farmed shrimp near the shrimp pond, so that the peak growth period of shrimp can ensure that there is a better water source for water exchange.

2.When raising shrimp, it is necessary to keep the pH value of the pool water quality between, but it should be noted that it cannot be higher, and it is necessary to inject new water frequently, maintain the transparency of the water quality, about 30 40 cm, be sure to regularly sprinkle quicklime solution into the shrimp pond, adjust the water quality for disinfection, prevent the occurrence of diseases and shelling, etc. When the breeding density of shrimp in the pond is too large, it is necessary to pay attention to the oxygen content in the water, and install an aeration pump.

3.Due to the complex solidity of shrimp, the feed cost of shrimp farming needs to invest some cultivated plankton and small fish and shrimp in the aquaculture, or plant some melons and beans and vegetables as the glaze of shrimp, so the feed cost will be about 2,000 yuan. <>

1.Under normal circumstances, the shrimp breeding cycle is 2 3 months, but due to the different species, so the shrimp two cycles will be different, for example, the breeding cycle of Penaeus vannamei shrimp is about three months, and the breeding cycle of Roche shrimp is 2 to 4 months when raising shrimp to start catching in a timely manner, usually when the shrimp body is 4 5 meters long, it can be marketed.

2.When stocking shrimp seedlings, it is advisable to carry out stocking on cloudy or rainy days, and stocking in the morning and evening on sunny days, so as to avoid direct sunlight affecting the survival rate of stocking, and shrimp seedlings should be put enough at one time. <>

The breeding period of local shrimp is about two and a half months, so the return on investment is still very fast, and the economic benefits are also very good, and it is very worth the investment.

The cycle is about three weeks to a month, and it can be grown and sold, and the benefits are relatively considerable.

Generally in about three months, this organism in the process of breeding for the soil fertility requirements are relatively high, and the temperature is not too high, to grasp at about 20 degrees.

So, how exactly should shrimp seedlings be cultivated?When will the shrimp fry be released?Now let's share it briefly.

There are two periods for sowing. The first is to put seedlings in the autumn of the closure of the birds. In the paddy field in the first year of crayfish farming, there were no shrimp in the field, so we chose to put 4-5 kinds of shrimp after October, 10-20 kg per mu, and the male-to-female ratio was 3:

1. It is best to buy seedlings in multiple places and put them multiple times to prevent inbreeding caused by picking broodstock shrimp from the same pond at one time, which will affect the survival rate of seedlings in the second year. It is to put shrimp seedlings in spring; If there are no shrimp seedlings in autumn, you can put 20-30 kg of young shrimp of about 1 yuan per mu in February and March next spring.

The water level should be kept at 40-40 cm after the shrimp are released, and then gradually deepen to about 1 meter as the water temperature rises. To adopt"Grab & Place"In the morning or evening on a sunny day, release the young shrimp in several different places to let them spread out as soon as possible, adapt to the water environment, and grow as soon as possible. The first period is from August to September.

The following is a selection of shrimp seedlings with neat size, consistent size as much as possible, and lively and robust.

I still insist that it is better to invest in seedlings early, and the seedlings can be listed early and sold at a good price. Shrimp fry transportation. Shrimp fry are generally transported in double-walled nylon bags filled with oxygen and water.

Every year from early August to mid-September, the crayfish are put into the paddy field, let them reproduce by themselves, put 500 tails (or about 40 catties) per mu, put 5000-8000 seedlings from early March to mid-April, one foot, put flat water after harvesting, and transplant.

Shrimp farming in rice fields is a combination of the above two methods. The shrimp seedlings that were bred last year began to sell the excess shrimp seedlings and the eggs of the parents in March, and the remaining shrimp seedlings were raised by themselves, and a large number of shrimps were sold in May, and then the water was released for breeding, and the remaining shrimp continued to circulate as the parents.