Breeding technology of yellow bone fish How to breed yellow bone fish

When breeding, choose a pond with a flat bottom, vast and sunny and rich in water resources, discharge the pond water and sprinkle lime powder for disinfection, fill in 10 cm of silt and inject 30 cm of clear water to a depth of 30 cm, and gradually increase to more than 2 meters.

Yellow bone fish is an omnivorous fish, which can be fed with cut earthworms, fresh mussels, small fish, small shrimp and other bait, and can also be fed with full-price compound feed.

Around April, it can be fed twice a day, and the feeding amount is 1% 3% of the fish body weight; From May to September, feed 3 to 4 times a day, and the feeding amount is 3% 5% of the body weight of the fish;

After October, the temperature drops, and the feeding amount can be 1% to 2% of the body weight of the fish when the temperature drops twice a day. When feeding bait, it should be fed at a fixed point, and it is not appropriate to change the feeding location at will.

1. Pond conditions.

The requirements for the pond are not high, everyone who has fished knows that some yellow mud ponds can catch yellow fish, so the area of the pond can be large or small, depending on the number of breeding and breeding density, the water of the pond is best one and a half meters deep, if the bottom of the pond silt accumulation is too thick, and the bottom is best to use sediment mixed bottom of the pond, the pond should have a drainage outlet and irrigation outlet, or not, but the drainage outlet must have, and then the amount of water must be sufficient, Before the stocking of fish fingerlings, it is necessary to carry out two weeks of pond rectification, the fish pond should be cleaned first, the water quality should be disinfected, and the pond can be sprinkled with quicklime and bleaching powder to carry out a preliminary treatment of the water quality, which can play a role in eliminating some pathogens and microorganisms in the water.

2. Seed stocking.

Fry should be stocked in advance, so as to maximize the time of growth and development of meagre fish, preferably before mid-June, stocking fry to select no disease and no damage to the fry, to ensure the overall survival rate of the fry, one mu can be stocked 120,000 to 150,000 a hectare.

3. Breeding management.

1) Some time ago, when feeding, its main food ** still depends on preying on small creatures and zooplankton in the pond, and when it is not enough to eat the growth needs of the yellow croaker, you can carry out artificial feeding, you can prepare some fresh bait feeding, twice a day. And also to distribute and master the amount of feeding, generally in the afternoon than in the morning to feed twice the amount of food, after a week can be fed miscellaneous fish meat, in order to improve the nutritional quality can also add some rich protein and other nutrients of the food mixed feeding, and so on to grow to five centimeters in the feed with some corn and cauliflower and other plant vegetables.

2) Inspect once a day in the morning and evening, check the water quality, fish fry and feeding degree, clean up the excess and remaining bait, and then change the water according to the pollution and transparency of the water.

3) At the end of autumn, it is necessary to prepare for wintering, and the water temperature will be reduced to below 10 degrees after winter, so it is necessary to do a good job of heat preservation, and at the same time disinfect the water quality in the pond, the same is to use bleaching powder for disinfection, and during the winter, it is necessary to do a good job of snow removal around the pond, water replenishment, disease prevention and other measures.

4. Yellow catfish disease.

The disease mainly occurs most frequently in July and August in summer, so we can sterilize and disinfect the water every month, feed once every half a month, avoid the influence of copper sulfate, trichlorfon and other insect pests when spraying, and splash bleaching powder every two weeks can play a role in inhibiting the disease, once the disease can be done, and then sent to the hospital.

1. Breeding conditions: Regardless of ponds, cages or other aquaculture water bodies, the water source must be sufficient and pollution-free, and the substrate and surrounding ecological environment must be suitable for the growth and development of yellow catfish.

2. Fish fingerlings: Fish fingerlings can be fished from rivers and lakes, or they can be artificially bred, regardless of their standards, they must be coarsely cultivated, and the fingerlings put into the fish ponds and cages reach 30 to 50 grams, so that the survival rate is high, the growth rate is fast, and the commercial fish specifications (more than 150 grams) can be reached in a timely manner. Stocking fingerlings is completed by the end of March of the same year, and can be caught and marketed by December of the same year, reducing losses and mortality during the winter.

3. Feed with high quality feed: high bait quality is an effective measure to improve the survival rate, market specifications and economic benefits of yellow catfish. Yellow catfish is omnivorous, animal feed-based fish, therefore, the crude protein of the feed should be more than 35%, before May according to the weight of the fish 2% to feed, from June to August the water temperature is high, the yellow catfish is in the peak period of vigorous growth, can be fed according to 4% to 5% of the fish weight; After September, the water temperature gradually decreases, the amount of concentrate feed is gradually reduced, and the amount and frequency of feed are changed according to the feeding of fish and weather changes.

Fixed-point feeding 1 to 2 times a day.

4. Pay attention to the regulation of water quality and the prevention and control of diseases: yellow catfish has higher requirements for water quality, to maintain the transparency of water 35 to 45 cm, pH value to 8, change the water once a month, install an aerator in the pond, start it regularly or irregularly, increase the dissolved oxygen in the water, avoid or reduce the floating head or flood pond phenomenon, and make the yellow catfish grow normally. Fish diseases should be prevented and treated in a timely manner, and preventive work should be done on a regular basis with quicklime, bleaching powder or other drugs to disinfect and kill bacteria, viruses and other pathogenic microorganisms in the pond to reduce the occurrence of diseases.

1. Yellow bone fish mostly move in still water or slow flow of rivers, like benthic life, inhabit the bottom of the lake during the day, and swim to the upper layer of the water to forage at night. It is more adaptable to the environment, so it can live in adverse environmental conditions.

2. Yellow bone fish generally refers to yellow catfish, which is a freshwater bottom fish, which likes to inhabit the bottom of the water during the day, does not often move, and swims to the middle and upper layers of the water body at night to feed. Breeding yellow bone fish, the water quality is light, the dissolved oxygen is high, and the suitable temperature is 0 38. Yellow bone fish is a mild carnivorous fish, which likes to eat small fish, small shrimp, snail mussel meat and artificial compound feed.

3. Yellow catfish is often used as a whole fish. Its meat is sweet and flat, and there is a wind dispelling breeding technology to breed ponds with 3-5 acres per mouth, water depth meters is appropriate, the water exchange conditions are good, and supporting aerators. Before stocking, 150 kg of quicklime was applied per mu in the dry pond for disinfection, and new water was injected after 3 days, and the seedlings could be released only after fertilization.

4. The main breeding is to put 1000 fish fry of 5-8 cm per mu, and reasonably match some silver carp, bighead carp, grass carp and crucian carp. Feed can be fed chilled small trash fish, fry the small trash fish into surimi, as the growth can be chopped into pieces of meat feeding, 2-3 meals a day, the daily feeding amount is 5-10% of the fish weight, the method of feeding is set up at the downwind of the pond to set up a bait point, with a mesh of about 20 mesh to enclose an area of about 5-10 square meters, the mesh is higher than the water surface, 50 cm from the bottom of the pond, the feed is put in it, the feed floats in the net when it does not disperse, and the yellow catfish will come up from the water to feed. Pay attention to the deterioration of water quality in the high temperature season, appropriately replace new water, and control the water color transparency by 20-30 cm; Quicklime is applied every 10-15 days, and 15 kg per mu is sprinkled with water in the whole pond; At the same time, pay attention to start the aerator to maintain dissolved oxygen in the water.

The first year of breeding produces 200-300 kg.

<>1. Habits.

Yellow catfish, a freshwater demersal fish, likes to inhabit the bottom of the water during the day, is not often active, and swims to the middle and upper layers of the water body at night to feed. Breeding yellow catfish requires light water quality, high dissolved oxygen, and a suitable temperature of 0 38. Yellow catfish is a mild carnivorous fish, which likes to eat small fish, small shrimp, snail mussel meat and artificial compound feed.

2. Seedling cultivation.

The amount of seedlings per mu (1 mu = 667 square meters) is 10 120,000, which can be used to fertilize underwater ponds, cultivate biological bait, and also sprinkle soybean milk, peanut cake or egg yolk. After raising to 3 4 cm size, it is cultivated in separate ponds, 340,000 per mu, and enters the stocking stage after raising to 6 8 cm size.

3. Adult fish farming.

1) Pond main breeding.

The pond area is 3 8 acres, the water depth is meters, and each mu of water surface is stocked with 5,000 10,000 yellow catfish fry, and the tail weight of 75 100 grams can be raised in that year.

2) Pond interculture.

500 1000 yellow catfish fry are raised on each acre of water surface, and 35 60 kg of commercial fish can be produced in Biyuan.

3) cage rearing.

Each square meter can be stocked with about 500 yellow catfish fry, and the liquid collapse can be raised as commercial fish in that year.

1. Pond conditions.

The requirements for the pond are not high, everyone who has fished knows that some yellow mud ponds can catch yellow fish, so the area of the pond can be large or small, depending on the number of breeding and breeding density, the water of the pond is best one and a half meters deep, if the bottom of the pond silt accumulation is too thick, and the bottom is best to use sediment mixed bottom of the pond, the pond should have a drainage outlet and irrigation outlet, or not, but the drainage outlet must have, and then the amount of water must be sufficient, Before stocking the fish fingerlings, the whole pond should be carried out for two weeks, the fish pond should be cleaned first, the water quality should be disinfected, and the quicklime and bleaching powder in the pond can be sprinkled with quicklime and bleaching powder to carry out a preliminary treatment of the water quality, which can play a role in eliminating some pathogens and micro-raw jujube substances in the water.

2. Seed stocking.

Fry should be stocked in advance, so as to maximize the time of growth and development of meagre fish, preferably before mid-June, stocking fry to select no disease and no damage to the fry, to ensure the overall survival rate of the fry, one mu can be stocked 120,000 to 150,000 a hectare.

3. Breeding management.

1) Some time ago, when feeding, its main food ** still depends on preying on small creatures and zooplankton in the pond, and when it is not enough to eat the growth needs of the yellow croaker, you can carry out artificial feeding, you can prepare some fresh bait feeding, twice a day. And also to distribute and master the amount of feeding, generally in the afternoon than in the morning to feed twice the amount of food, after a week can be fed miscellaneous fish meat, in order to improve the nutritional quality can also add some rich protein and other nutrients of the food mixed feeding, and so on to grow to five centimeters in the feed with some corn and cauliflower and other plant vegetables.

2) Inspect once a day in the morning and evening, check the water quality, fish fry and eating degree, clean up the excess and remaining bait, and then change the water according to the pollution and transparency of the water.

3) At the end of autumn, it is necessary to prepare for wintering, and the water temperature will be reduced to below 10 degrees after winter, so it is necessary to do a good job of heat preservation, and at the same time disinfect the water quality in the pond, the same is to use bleaching powder for disinfection, and during the winter, it is necessary to do a good job of snow removal around the pond, water replenishment, disease prevention and other measures.

4. Yellow catfish disease.

The disease mainly occurs most frequently in July and August in summer, so we can sterilize and disinfect the water every month, and feed once a month in the first half of the month, and avoid the influence of copper sulfate, trichlorfon and other insect pests when spraying, and splash bleaching powder every two weeks can play a role in inhibiting the disease, once the disease can be done, and then sent to the hospital.