Astragalus cultivation

Astragalus, also known as squid or long fish, has a delicate flesh, delicious taste and less spurs. It is rich in protein, vitamins, and minerals. Astragalus also has important medicinal properties. It has qi, blood, anti-inflammatory, disinfectant, and anti-irritability. Wind wet and other effects. Huangqi is adaptable, resistant to hypoxia, hunger, and easy to transport. Its culture method is simple, low in cost and high in economic efficiency. It is suitable for small-scale family farming.

One, Dianchi construction

The breeding ponds of Astragalus should be constructed in places sheltered from the wind to the sun and close to the water sources. The size of the area should be adjusted according to local conditions, generally 50 to 100 square meters. The pool depth is 1-1.5 meters. The shape is rectangular, square and elliptical. It can be built with cement, bars, bricks and triads. It must be cemented or hardened. Must be covered with a layer of linoleum around and at the bottom. In order to prevent the escape of jaundice, the top of the pool wall should be made of "T" shape with bricks. The top of the pool hull should be over 30 cm above the water surface. The inlet and outlet pipes and the overflow pipe must be firmly closed with barbed wire to prevent the yellow locust from fleeing.

After clearing and disinfecting the carp pond, lay a layer of stones, bricks or tree roots on the bottom of the carp pond, and then lay a layer of 30 cm thick soft and hard, containing more river mud or using green grass and cattle. The excrement loam soil creates a comfortable artificial nest. Then add new water so that the water depth is 5-15 cm. Finally, plant aquatic plants on the surface of the pond, such as white peony root, arrowhead mushroom, water lotus, etc. This can not only shade the yellow peony, but also reduce the water temperature, which is conducive to the growth of jaundice.

Second, seed selection and stocking

1. Be sure to choose a physique that is robust, harmless, active, neat, and hypertrophic, with no parasites on the body surface, and body color that is bright yellow. For those who have blister on the body surface, broken skin, broken tail, mouth and cheekbones are not suitable for stocking.

2. Stocking: After the water is sterilized and sterilized by Huangqi pool, it can be fed when the temperature is above 15°C. Before stocking, the species should first be soaked with 10ppm bleach or 3-45 saline for 15-20 minutes to kill its surface pathogens. For a larvae of 30--40 kg per kg, stocking density is 50-150 per m2. 8 to 10 tail mud louse per square meter, let it move up and down to improve the water environment.

Third, feeding and management

1. Qualified Feeding: Astragalus is a omnivorous fish dominated by meat and eats fresh feed. It is also possible to feed some plant feeds. After entering the pond, the jaundice must be fed and domesticated immediately. Make it able to eat a variety of compound feed, and can feed at 9 am, around 4 am. Astragalus membranaceus feeds vigorously at 25--30°C, so 5--9 months are the peak of feeding. The general feeding amount is 3-5% of the fish body weight. During the peak season of June-August, the amount of feeding can be increased to 6-7%, feeding twice a day. Do regular, quantitative, fixed-point feeding.

2, water level control; water level must be long-term control in the 5-15 cm, not more than 20 cm, easy to Huang Tui head out of the water breathing air.

3, water quality regulation: The general spring and autumn season 6-8 days can change the water once in summer, 2 - 3 days change the water once. At the same time, remove the bait and debris from the pool every day to keep the water fresh.

4. Overwintering management: When the water temperature drops below 15°C, the yellow pupae begin to drill deep into the soil for winter, until February of the following year. During the winter, dry the pool water and lay a layer of rice straw or wheat straw on it to keep the soil moist and the humidity in the soil.

In short, in the course of feeding and management, in order to strengthen feeding and strictly control the water level and water quality, Huanghua must constantly check the blockage, especially during the flood season, and do a good job of preventing flight. In addition, it also prevents the pollution of pesticides and water mice, snakes, cats and other hazards.

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