YT-88 YT-88 Shenzhen Sunshine Technology Co.,Ltd , https://www.yatwinsz.com
As the saying goes "Autumn winds sound, crab legs itch." After entering the fall, carefully check the anti-escape facilities and strengthen the escape. And note that there can be no high-crop crops on the edge of the crab pool.
2, planting good plants
"Crab size, look at aquatic plants", water grass is an important factor affecting the crab capture size and yield. In the summer and autumn high temperature period, water grass can provide shelter, hiding, shelling sites and plant food for the crab, but also play a shade , lower water temperature, improve water quality and other effects. The aquatic plants planted are preferably aquatic plants like water hyacinth and bitter grass. The area accounts for about one-third to one-half of the crab pool.
3, maintain good water quality
Keep the water fresh during the crab cultivation process. The best condition is to use microfluidic water to raise crabs. Sprinkle calcium phosphate (2-3ppm) every 15-20 days in the summer and quicklime 10-15ppm to adjust the pH of the water body. The application time should be 3-5 days, and the transparency should be controlled at 35-40cm to promote the growth of the crab. Due to the large temperature difference between day and night in autumn, the water quality is easily deteriorated. Change the water once every 3-5 days, change the amount of water is one third of the original pool water, and maintain a water depth of 1-1.5 meters.
4, scientific feeding
In the summer and autumn stages, the proportion of plant foods (such as bean cake, wheat, pumpkin, etc.) should be appropriately increased to facilitate the accumulation of crab crabs, and in the middle and late autumn, during the season of crab fattening, the heights of snails, clams, animal waste, and miscellaneous fish should be appropriately increased. Protein feeds are fed twice a day, and daily feed accounts for 5-8% of crab body weight.
5. Strengthen disease prevention
Summer and autumn seasons are the high season of crab disease, and they are prone to large-scale diseases. Regular use of a combination of internal medicine (such as oxytetracycline, Radix, dehulling) and external medication (such as shellfish crab crab) combination of preventive measures. Sprinkle lime once every 2 weeks, occasionally splashing the whole pool with bleach, crab, photosynthetic bacteria, etc. Monthly 3-4 times with terramycin, sulfa drugs and other mixed feeding. Focus on the prevention and treatment of river crabs' "shaking disease", "ciliosis", and "biological predators".
Crabs should strengthen autumn management
1. Strengthen anti-escape facilities