CATDOLL : CATDOLL: How to breed yellow bone fish

When breeding, choose a pond with a flat bottom, vast, sunny, and abundant water resources. Drain the pond water and sprinkle lime powder for disinfection. Fill in 10 cm of silt and inject clean water to a depth of 30 cm, gradually increasing to more than 2 meters.

Yellow bone fish is an omnivorous fish and can be fed with cut earthworms, fresh clam meat, small fish, shrimps and other baits, or it can be fed with complete compound feed.

Around April, feed twice a day, with a feeding amount of 1% to 3% of the fish's body weight; from May to September, feed 3 to 4 times a day, with a feeding amount of 3% to 5% of the fish's body weight;

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

Yellow croaker is a dish eaten by Sichuan people, and is called yellow croaker by southerners. Zhuhai is a city that is used to eating seafood, and there are many immigrants. It does not have its own cuisine, so people have to eat a lot. This popular yellow croaker is a Hunan dish.

Pelteobagrus fulvidraco, commonly known as yellow bone fish, is also called yellow croaker or yellow croaker.

1. Lifestyle

Pelteobagrus fulvidraco is a freshwater bottom fish. It likes to live at the bottom of the water during the day and is not active. It swims to the middle and upper layers of the water body at night to find food. Breeding Pelteobagrus fulvidraco requires clear water quality, high dissolved oxygen, and a suitable temperature of 0-38℃. Pelteobagrus fulvidraco is a mild carnivorous fish that likes to eat small fish, shrimp, snails and clams, and artificial compound feed.

2. Seedling cultivation

The stocking quantity is 100,000 to 120,000 per mu (1 mu = 667 square meters), which can be used to fertilize the pond, cultivate biological bait, or sprinkle soybean milk, peanut cakes or egg yolks, etc. After the fish are raised to 3 to 4 cm in size, they are divided into ponds for cultivation, with 30,000 to 40,000 fish per mu. After the fish are raised to 6 to 8 cm in size, they are put into the stocking stage.

3. Fish farming

(1) The main pond area should be 3 to 8 mu, with a water depth of 1.2 to 1.5 meters. 5,000 to 10,000 yellow catfish fry should be stocked per mu of water surface, and commercial fish weighing 75 to 100 grams can be grown in the same year.

(2) Pond culture: 500 to 1,000 yellow catfish fry are cultured per acre of water surface, which can produce 35 to 60 kilograms of commercial fish.

(3) About 500 yellow catfish fry can be raised per square meter in cages, and they can be grown into commercial fish within the same year.

2. Farming of Pelteobagrus fulvidraco

In the teahouses, restaurants and seafood restaurants in the Pearl River Delta and our city, diners can taste a new species called yellow catfish, which has tender meat and delicious taste, and is very popular among consumers.

Pelteobagrus fulvidraco is a high-quality and precious fish in my country, commonly known as yellow bone fish or bone fish. It grows in rivers, lakes, reservoirs or their tributaries, inhabits the bottom, and feeds on various bottom-dwelling invertebrates, small fish, shrimps, etc. It has a wide adaptability to the ecological environment and does not have high requirements for nutrition and other environmental factors. Therefore, it can be cultured (or multiplied) in waters with good conditions.

The body of the yellow catfish is stout, with a slightly flat head, laterally flattened trunk and tail, sloping back, broad and flat chest and abdomen, thin skin on the top of the head, relatively rough epidermis, pure round snout, medium eyes, large mouth, small and fluffy teeth, thin and simple lips, exposed occipital with a bony spur extending backwards, 4 pairs of whiskers, 8 to 10 gill covers, and a deeply forked caudal fin. Its characteristics are quite different from those of general fish.

The yellow catfish is a widely distributed fish that can be found in the Pearl River system and other rivers and lakes in Guangdong Province. In Guangdong, there are three species of yellow catfish, namely, yellow catfish, intermediate yellow catfish and mutual yellow catfish.

There are several issues to pay attention to when breeding yellow catfish:

1. Breeding conditions

Regardless of ponds, cages or other aquaculture water bodies, the water source must be sufficient and unpolluted, and the bottom quality and surrounding ecological environment must be suitable for the growth and development of yellow catfish.

2. Source of fish species

Fish can be caught from rivers, lakes, or artificially bred. Regardless of their source, they must be bred and sized to reach 30 to 50 grams when placed in fish ponds and cages. This size has a high survival rate and a fast growth rate, and can reach the commercial fish size (over 150 grams) on the market in a timely manner. The stocking of fish should be completed before the end of March of the year, and they can be caught and marketed before December of the year to reduce losses and deaths during the winter.

3. Feed high quality feed

Higher feed quality is an effective measure to improve the survival rate, market size and economic benefits of yellow catfish. Yellow catfish is an omnivorous fish that mainly feeds on animal feed. Therefore, the crude protein content of the feed should be above 35%. Before May, it should be fed at 2% to 2.5% of the fish weight. From June to August, the water temperature is high and yellow catfish is at the peak of vigorous growth. It can be fed at 4% to 5% of the fish weight. After September, the water temperature gradually drops, and the amount of concentrated feed is gradually reduced. The amount and frequency of feeding should be changed according to the fish's feeding and weather changes. Feed 1 to 2 times a day at a fixed point.

4. Pay attention to water quality regulation and disease prevention and control

Yellow catfish has high requirements for water quality. It is necessary to maintain the water transparency of 35 to 45 cm and the pH value of 6.5 to 8. The water should be changed once a month. An aerator should be installed in the pond and turned on regularly or irregularly to increase the dissolved oxygen in the water, avoid or reduce the phenomenon of floating heads or flooding the pond, and make the yellow catfish grow normally. If the fish is sick, it should be treated in time, and preventive work should be done well. Quicklime, bleaching powder or other drugs should be used for disinfection regularly to kill bacteria, viruses and other pathogenic microorganisms in the pond and reduce the occurrence of diseases.

1. Selection and cleaning of fish ponds Choose a fish pond with an area of ​​about 3-6 mu and a water depth of about 1.5 meters. 7-10 days before stocking fish, clean the fish pond with medicine. Use 250-300 kilograms of quicklime per mu (1 meter water depth) for disinfection. First, put the quicklime into a prepared container and add water to dissolve it. Sprinkle it evenly throughout the pond without waiting for it to cool down, so as to give full play to the disinfection effect of lime. After cleaning the pond, the drug effect generally disappears after 7-10 days. Add new water and release fish after testing the water. 2. Stocking plan: Generally, 5000-8000 fish of 3-5 cm in size are purchased per mu in mid-to-early May for domestication and trial breeding. Soak the fry in 3-5% salt water for 5-10 minutes before they are put into the pond. After one month of cultivation, try to select fish of the same size for stocking. Some small-sized fry can be abandoned or selected for breeding in another fish pond. At this time, you can stock 100 silver carp/mu and 50 bighead carp/mu. Yellow catfish is docile in temperament, and its ability to grab food is far inferior to that of California bass, crucian carp, tilapia and other fish, so it is not suitable to be raised with other bottom fish. 3. Feed: Yellow catfish is an omnivorous fish that mainly feeds on animal bait. Under artificial breeding conditions, it is fed with artificial compound feed. When feeding, the bait is thrown on the table and the fish are allowed to automatically come up to the table to eat. Feed once in the morning and evening every day. It is best to feed the fish until it has eaten up each time. Under normal circumstances, the daily feeding amount is 2% of the fish's body weight. More feed can be given in the evening.