What are the prevention and control measures for sudden death syndrome in laying hens?

Prevention and control measures for sudden death syndrome in laying hens: strengthen feeding management and ensure good ventilation in the chicken house; raise the feeding level of growing pullets when they are close to sexual maturity, and at the same time consider calcium and phosphorus supplementation; adding 500 to 1000 grams of vitamin C per ton of feed can alleviate the condition; use antibiotics to prevent enteritis and salpingitis: penicillin and streptomycin at 20,000 units per hen in drinking water, and using Tylosin plus in drinking water also has a good effect; for flocks with severe conditions, turn on the lights 1 to 2 times from 11 p.m. to 1 a.m. to let the hens drink water, reduce blood viscosity, lighten the burden on the heart, and lower the mortality rate. Pick out paralyzed hens and place them in a cool place.