Feeding management
1. Feeds for feeds The feeds for scutellaria baicalensis can be crickets, river fleas, snails, small junk fish, small clams, small insects, animal organs and fruits and vegetables. A trap light can be installed on the surface of the pond to attract flying insects into the pool, and pig blood can also be used to attract spawning spawning oysters as bait. Feeding should follow the "four principles" principle. There are nocturnal habits in the Astragalus membranaceus, but they need to be gradually domesticated in the process of artificially rearing the fattening. After the seedling is released, it is generally fed in the afternoon after dark, and then it is gradually fed earlier, and acclimated until finally at 2 o'clock in the afternoon. Feeding; Fresh bait feeding rate is 5%-6%, dry bait feeding rate is 1%-2%, and increases or decreases according to the water temperature (water temperature 15°C-28°C is more suitable for carp growth, lower than 15°C. Ingestion, feeding stopped completely below 10°C, and over 28°C, food intake will also decrease.) A bait station should be set up in the pond. Generally, planks should be set up along the edge of the pool. The board should be half inclined to the surface of the water. The food should be placed on the wooden board near the water surface. The animal feed should be fed fresh, and the bait should be removed in the early morning of the next day. And wash the food table.
2, the daily management is mainly to maintain the water quality "fat, live, tender, cool". When the seedlings were first released, the water should be shallow, and 10 cm is appropriate. After gradually increasing the water level, it is generally maintained at 15-20 cm. Always change the water, change the water every 3 days, each time changing the water 1/2 is appropriate. When the summer heat is high, change the water once a day. Change the water time is best selected in the early morning, when the temperature of the water source and the pool water temperature are basically consistent, to prevent the temperature difference is too large (more than 3 °C) and make the yellow peony "cold." Take a patrol once a day early in the morning to remove dead, sick, and weak lice. Can be planted along the pool of loofah, grapes and other vines shaded and cooled. In autumn, it is mainly fed with high-quality bait to fatten and strengthen Astragalus constitution. If the temperature is lower than 10°C, drain water and stop feeding to keep the pond mud moist. Disease prevention adheres to the principle of "prevention as the main and drug therapy as the supplement." 8-10 days before stocking, disinfected with quicklime 100g/m2 clearing pond, drained fresh water after 7 days; in the breeding process, insert 20ppm of calcium peroxide solution into the bottom of the water pipe every 30 days to carry out the pool At the end of oxygen, to prevent the end of the sludge due to oxygen deficiency corruption caused by the onset of jaundice, every 15 days with 15ppm limestone Quanchiposa disinfection. In addition, 20 grams of allicin per 100 kilograms of jaundice was administered once every 5 days, once daily, once every 3 days, and the disease prevention effect was excellent.
Precautions
1, we must work out standardized disease prevention measures, and strictly enforced, so that no disease first prevention; diligent patrol pool, so that early detection, early treatment.
2. The number of holding pools should be realistic and can be obtained from a small amount, accumulate experience, and gradually expand according to market development; the stocking density should be determined according to the management level and feeding conditions.
3. For those with larger farming scales, a series of seedlings can be bred to ensure a balanced market, so that when Huangpi is at the peak of its listing, the seedlings will be purchased at a lower price; the number of listings will be less and the goods will be sold at high prices. Do a good job of recording market conditions as a reference for the leap year.
Pond construction of astragalus aquaculture ponds should be built in a sheltered, sunny place with guaranteed water and solid soil. The shape of the pool is a long ellipse. It is 1 meter deep. It is made of bricks around the pond. The top of the pool wall is made into a "T" shape with a depth of about 20 centimeters. The bottom of the pool is paved with cement, and the top is laid for about 25 centimeters. The pond mud and pond mud should be moderately soft and hard so as to facilitate the lurking of the lute. Within the pond, 10-20 cm of water and 1/3 of the surface of the water are planted with water hyacinth and other aquatic plants, which are used as a habitat for the yellow locust to conceal lurks. Seedlings for stocking and raising seedlings are required to be dominated by the wild, with no damage to the body, no parasites, and robust physique. The seedlings with deep yellow color and large spots grow faster and the seedlings with blue color grow more slowly. Disinfect with 50% salt water for 5 minutes before stocking. The stocking density of seedlings with a size of 20-30/kg is 3-4 kg/m2; the stocking density of seedlings with a size of 10-20 kg/kg is 4-6 kg/m2. Different sizes of seedlings are kept in separate ponds, with a small amount of muddy grass at the same time with a 10% ratio.