Habits and culture of Pelteobagrus fulvidraco
1. living habits
Yellow catfish, commonly known as yellow bone fish. It is a freshwater bottom fish. It likes to inhabit the bottom of the water during the day and is not often active. It swims to the middle and upper layers of the water body at night to feed. The culture of Pelteobagrus fulvidraco requires light water quality, high dissolved oxygen and suitable temperature of 0~38℃. Pelteobagrus fulvidraco is a kind of mild carnivorous fish. It likes to eat small fish, shrimp, snail meat and artificial feed.
2. larval rearing
Each mu (1 mu =667 square meters) seedling amount of 10~12 million tail, can be fertilized under the pond, culture biological bait, can also sprinkle soy milk, peanut cake or egg yolk. Cultured to 3~4 cm in size, then cultured in ponds, 30 ~ 40 thousand fish per mu, and cultured to 6~8 cm in size, then entered the stocking stage.
3. Adult fish culture
(1) The suitable area of pond for main culture is 3~8 mu, the water depth is 1.2~1.5 meters, 5000~10000 yellow catfish fry are stocked in each mu of water surface, and the commercial fish weighing 75~100 grams can be cultivated in the same year.
(2) 500~1000 Pelteobagrus fulvidraco fry per mu of water surface can be interbred in pond, and 35~60 kg commercial fish can be produced.
(3) Cage breeding can stock about 500 larvae of Pelteobagrus fulvidraco per square meter, and commercial fish can be cultivated in the same year.
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Introduction of mullet
Black mullet, also known as black fish, raw fish, money fish, snakehead fish, filial piety fish, etc., belong to the order Perciformes, Cephalidae, snakehead in taxonomy. It is widely distributed in all kinds of waters north and south of the Yangtze River in China. It has few bone spurs, delicate meat, delicious taste and rich nutrition. It is determined that every 100 grams of mullet meat contains 19.8 grams of protein and 1.49 grams of fat, and is rich in calcium, phosphorus, iron, zinc and other nutrients needed by the human body. People like to eat mullet after surgery in order to remove silt and give birth to new ones, tonify blood and accelerate.
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Feeding of soft-shelled turtle insects
(1) feeding equipment may be developed according to the size and purpose of the feeding scale. Only the feeding equipment for providing the source of medicinal materials and insects is introduced here. ① insect screening: the purpose is to screen and separate nymphs, adults and egg sheaths of different ages within a certain period of time, and then raise and separate medicinal worms respectively. The sieve hole is divided into 5 kinds of specifications: 2-hole sieve: used when separating adults. 4-hole sieve: used when 7-8-year-old nymphs were isolated. 6-hole sieve: used when separating egg sheath and insect feces. 12-hole sieve: used when 1-year-old 2-year-old nymphs were isolated. 17-hole screen
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