The market sales of grouper are good, what are the grouper breeding skills?

Grouper has higher requirements for water quality, needs to be cultivated in unpolluted water quality, the water depth of breeding is generally more than 1m, the sand of breeding grouper is mainly sandy or semi-sandy, grouper likes to drill holes, need to put some stones under the breeding ground, tires with holes, and it is best to feed grouper with live bait.

The breeding skills of grouper are to choose some suitable temperatures for breeding, and also pay attention to choosing some clear places for breeding, and it is best to use artificial breeding methods. It is also necessary to maintain a reasonable stocking density. You can put some grouper food in the water to feed it.

Change the water frequently, too.

Maintain good water quality, regularly check whether there is an invasion of alien fish species in the grouper breeding pond, regularly disinfect and sterilize, scientifically feed and feed, and maintain the stability of water temperature and oxygen content in the water.

It is necessary to pay attention to the feeding time, the frequency of feeding, the density of breeding, to ensure that the oxygen in the water is sufficient, and to pay attention to the water quality.

Eating some protein powder and fishmeal are some nutrients, and it is also to supplement the nutrients of grouper, so that it can thrive.

Groupers of different sizes eat different foods, but groupers generally eat meat, so you can feed them some small trash fish.

Generally, you should choose some nutritious feed, and you should also choose some small fish or dried shrimp.

Breeding grouper is generally best to choose cages to breed, in addition to cage farming grouper, you can also choose to breed grouper in ponds, this everyone understands, grouper is relatively good to breed one of the fish. Groupers are tropical fish. Can be grown in fresh water.

It can also be grown in seawater with a salinity of 10%. Freshwater grouper is a demersal fish that is tolerant of hypoxia and very resistant to disease. The only drawback is that it is particularly sensitive to temperature, which is generally between 25 and 30 degrees.

When the weather changes and the temperature drops below 2o degrees, the amount of food is significantly reduced, <

Grouper "is a fish that lives in tropical or temperate seas, grouper often lives on the bottom of reefs and coral reefs to feed, grouper is rarely together, are fish species that forage alone, in spring and summer, often active in 10 meters to 30 meters deep sea water layer, mainly the temperature and water temperature control the depth of their living sea area, grouper in artificial breeding needs to pay attention to the water temperature, especially during the seedling period, suitable for growth of water temperature in 28-31 degrees, When the water temperature is lower than 23 degrees, the feeding amount of the seedlings decreases, and many seedlings can not even open their mouths to eat, resulting in the seedlings will starve to death, and the survival rate is very low, and once the water temperature is higher than 33 degrees, the activity of the seedlings will be abnormal, the resistance will decrease, and it is easy to cause diseases.

Aquaculture is a look at the sky to speak of the industry, the cost is to reduce the survival rate is high, the cost is low, from the feeding is impossible to save costs, fish can eat how much to feed, feed every other day, raise good water, fish health, grow fast, the cost will be reduced, if there is a condition to change the pond every two or three months, the market time is short, the cost will drop a little.

With the continuous improvement of people's living standards, the products produced by intensive and factory farming, the livestock and poultry products with poor quality and taste can no longer meet the growing consumption needs of consumers

The survival rate is okay, but the loss is not enough, but the cost is high, and the sales are not good, so the average person is reluctant to breed grouper.

The survival rate of grouper is still quite high, but the breeding time is relatively long, and in general it will not lose money.

Groupers have a high survival rate and are very easy to feed. If you breed, you will generally not lose money.

Grouper has very high requirements for the environment in which it grows. The water source must be free of any contamination. It is difficult to achieve this condition in ordinary fish ponds, so it is very difficult to breed. There is a high probability of loss in artificial farming.

Grouper is one of the most important aquaculture fish in the southern coastal area of China, and its breeding mode is mainly divided into factory farming, outdoor cement pond culture, earthen pond culture, marine cage culture and other modes. Since groupers are largely farmed at high densities, the probability of infection with Vibrio is very high. Vibrio is a common bacterium in the water, in recent years, with the change of ecological conditions of aquaculture water and the increase of breeding density, Vibrio has become one of the main diseases that harm grouper, since autumn, the temperature difference between day and night in the water body is large, the stress of fish increases, the bacterial reproduction is accelerated, and vibriosis has become the primary killer of grouper farming.

<> typical symptoms of grouper infection with vibriosis are slow onset, food is expected to be reduced or not fed, death will occur after the onset of the disease, increasing day by day, within 2 days the body color of the diseased fish is black, the surface is swollen, the base of the pectoral fin and tail fin is ulcerated, the anatomy can see the liver and kidney and other internal organs hemorrhage or congestion, ascites partial necrosis, and the abdominal cavity is full of yellow.

Vibrio is the dominant species in seawater, accounting for 60% of the total. The Vibrio bacteria that cause vibriosis are usually found in the gills, intestines, or other parts of the internal organs of infected fish, causing ulceration and systemic infection. If left untimely**, it will lead to morbidity and mortality.

The mortality rate of groupers infected with vibriosis is very high, so it is necessary to pay attention to prevention in the breeding process, ensure the balance of feeding, prohibit feeding stale or spoiled bait, and reasonably control the stocking density. During the cultivation process, the bacteria and algae need to be re-cultivated after each sterilization. In the process of breeding, the pond can be sprinkled with beneficial bacteria such as em bacteria, spores, and photosynthetic bacteria every 7 days to supplement the carbon source.

A large number of beneficial bacteria can effectively inhibit the growth of harmful bacteria.

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The risks of fish farming include water quality problems, environmental problems, fry density problems, blind use of antibiotics, and misuse of disinfectants and insecticides, which can cause the fish to have a stress response and cause problems in the fish.

Raising groupers may lose all their money, and the grouper may die, or it will get sick, and the production will suddenly decrease, and the price may be cheap.

Groupers will be infected with germs, and a large number of people will die, and the casual use of fertilizer water may cause poisoning of the fry. No protective measures were taken when the pond was replaced, resulting in the death of the fry. When farming groupers, we have to pay attention.

Replace water resources in a timely manner. It is necessary to pay attention to the density of the culture. In the process of farming, we need to put antibiotics in the water in a timely manner.

Grouper, is a marine fish. Seawater salt essence is required, and the salinity is about 25%-30%, and the temperature should be between 25 degrees, and the low temperature will affect the feeding. This season, you should pay attention to the following points when raising groupers.

Grouper is a fish that is afraid of heat and cold, like the weather temperature in this season is more than 20 or even 30 degrees, so if you want to raise a good grouper, you must control the water temperature, the water temperature is best around 10 not more than 15, and the water quality also needs to be paid attention to.

The temperature drops below 15 degrees, the fish will float, there is a danger to life, it is very important to raise a good grouper temperature, if you are too busy at work, and do not take care of it, don't raise a grouper, if you die, watch a life is gone like this, the heart will be very sad, grouper is rarely together, are solitary foraging fish species, in spring and summer often active in the sea water layer of 10 meters to 30 meters deep, mainly the temperature and water temperature control the depth of their living sea area, The suitable growth temperature for grouper is between 15 and 34 degrees.

From July 1st to August 1st, during this time, there were more fish diseases, and the bait was changed to 90 rounds of eel powder per mu plus 10 fresh trash fish, the daily amount of bait was 5, and the feeding time was 4 o'clock in the morning. At the same time, the density is reduced to 500 mouths, and 100 grams of trichlorfon are hung. Many seedlings can not even open their mouths to eat, resulting in seedlings will starve to death, the survival rate is very low, and once the water temperature is higher than 33 degrees, the activity of seedlings will be abnormal, the resistance of the clan will decrease, and it is easy to cause diseases.

There is also the possibility that you have a high density, and it is better to use a larger cement pool indoors.

The main thing is the temperature and water temperature to control the depth of the sea where they live, suitable for the growth temperature of grouper is 15 degrees to 34 degrees, the fastest growing water temperature is 22 degrees to 28 degrees, grouper is a saltwater fish, the best life in the water with a salinity of 10 percent, pay attention to the temperature of the water and the climate is very important.

The best season for grouper breeding should be based on the environment of different regions, Zhejiang Fujian is generally from May to November, Guangxi, Guangdong and other regions from April to November, and Hainan is generally from March to December. Normally, the seedlings are stocked in May from March to May.

The best breeding season for grouper steak depends on the environment of different regions. The coastal areas of Zhejiang and Fujian are generally in May-November, Guangxi and Guangdong in April-November, and Hainan in March-December. Seedlings are usually released from March to May.

It is best to raise it in May, because it is more suitable for the growth of grouper during this time, and the ambient temperature is more suitable.

Consideration should be given to current, water depth, sediment, distance from the cage from shore, wind and waves, wind direction and traffic conditions. The water quality is fresh, the salinity of the seawater is relatively stable, and the dissolved oxygen is above 5 mg L; The water flow is gentle but the wind and waves are not large, and it is best to have high ground as a barrier in the northwest direction, and the flow rate in the box is; The water level of the aquaculture area is more than 5 meters below the spring tide line, the bottom of the net does not touch the seabed, and the bottom quality is best sandy bottom; Select unpolluted or lightly polluted sea areas with strong self-purification capacity for aquaculture; Land and sea transportation should facilitate the transportation of seedlings, feed and products.

Gentian and oblique grouper have been successfully bred, but their numbers are small and unstable. Grouper farming technology is relatively mature. When stocking seedlings, it is best to have the same size when purchasing grouper fry, because grouper is a fish that has both residual food and defined domains.

The fish body is required to be intact, bright in color, non-traumatic, in good feeding condition, and the pectoral and dorsal fins of the fry are fully open, healthy and energetic. Sterilized fish are sterilized prior to stocking, usually by placing fingerlings in pre-assembled cages with live water and then placing them directly into the nets according to a predetermined stocking plan. The fingerlings to be placed in the cage nets must be of good quality with a robust physique and uniform size.

The bottom material is sandy or gravel; It is convenient to absorb moisture, the water quality is fresh, there is no domestic and industrial pollution, and the maximum daily water exchange rate can reach more than 50%. Two months before cleaning the pond for disinfection and seedling raising, drain the pond water, dry the pond for two weeks, and remove the silt impurities on the surface of the pond; attachment of artificial reefs with strips or rocks in deep waters; Install a filter screen, add 50cm of water, apply 150kg of quicklime per mu, soak and disinfect for 15 days to kill pathogens and harmful organisms, and then add water to the pool twice. 20 days before the basic bait culture and seedling, feed the water to a depth of 40 cm, and apply 2 milliliters of urea, milligrams of superphosphate, and milligrams of silicate three times in a row to make the water yellow-green, and then gradually feed the water to a depth of 100 centimeters, and the transparency is kept at about 40 centimeters.

The seedling size is related to the seedling throwing time. The weight of each seedling throwing is about 50 grams, and the weight of the seedling throwing is about 100 grams. The planting density is controlled within 667 acres, and 10,000 plants are planted in 300 acres of ponds, and the seedlings weigh tons.

The feed is mainly fresh small fish and shrimp. When the fresh feed is insufficient, feed each with compound feed once. When the water temperature is lower than 13, feed less or no feeding, and do not feed in season.

The daily intake is 8% to 10% of the fish weight in the early stage and 5% to 6% in the middle and late stages. The specific feeding amount is adjusted according to the weather, water quality, feeding situation, residual bait amount, etc. Generally, check the feeding situation through the set bait rack, and master the principle of feeding within 2 hours.

The feeding site should be changed every 10 days to avoid local sediment deterioration caused by long-term bait.

First, control the water temperature, which should not be lower than 15 degrees Celsius in winter; second, the number of inputs, about 3 kilograms per cubic meter; Thirdly, the feed, grouper is carnivorous, you can throw some small fish and small shrimp.

It is necessary to choose the right water temperature, between 22 and 30 degrees, which is suitable for growth, and the salinity of grouper should be controlled at about 30% as much as possible. When choosing fry, you should choose a fish with a strong body and strong vitality. Try to do a good job of stocking density and flow rate in the aquaculture area.

Selection of fry. At present, grouper seedlings have not yet met the requirements for productivity, so the fish farmed are still raised from juveniles caught in natural sea areas. The stocking density has a great relationship with the flow rate in the aquaculture area, and the sea area with a smooth flow rate can be larger or less.

The general principle of bait is: the water flow is slow and the water is clear, when the water temperature is suitable, cast more, and vice versa. Fingerlings should be stocked according to the size of the fish and reared in grades.

In addition to feeding in the process of breeding, it is necessary to constantly observe and check the growth, feeding, activity and body color of the fish, and check whether there is any damage to the cage and the number of attached organisms.