Abnormal egg production at the beginning of the disease, followed by a sudden drop in egg production of the entire group of chickens, far below the normal level. Within 2 to 3 weeks after the onset of disease, it was reduced to the lowest point, and it was decreased by up to 50% at the most. Even if the disease recovered, the standard egg production curve could not be recovered. Egg dropping syndrome can affect chickens of any age and breed, especially hens that produce brown shell eggs and broilers. The chicks did not show any clinical symptoms after infection. After the start of laying, the disease turned from recessive to dominant, and the hens from 6 months to 8 months were at peak incidence. Infected chickens can spread the disease through the ejaculates of breeders and breeders, as well as digestive tract infections. The key to prevention of the disease is to inject a vaccine adjuvant to inactivate the vaccine and vaccinate 16- to 18-week-old hens. Each muscle or subcutaneous injection of 0.5 ml produces immunity 7 days after vaccination, and the immunization period can be maintained for 1 year. Or use high-impact egg yolk injection to inject each muscle or subcutaneous injection of 2 ml into the diseased chickens, together with oral rehydration medicine and other treatments, have a certain effect, especially in the early use of better.
A diagnostic test is a procedure performed to confirm or determine the presence of disease in an individual suspected of having a disease, usually following the report of symptoms, or based on other medical test results.[1][2] This includes posthumous diagnosis. Examples of such tests are:
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Days to prevent egg drop syndrome
Egg-laying egg drop syndrome, also known as egg drop syndrome, is an infectious disease caused by the virus that can reduce the laying rate of laying hens. Its clinical diagnostic feature is a sudden drop in egg production in chickens, and the appearance of soft shell eggs, misshapen eggs, or eggshells becomes lighter in color. The disease can reduce egg laying rate by 10% to 30%, shell damage rate of 35% to 40%, shellless eggs, soft shell eggs around 15%.