How do you diagnose and manage Egg Drop Syndrome '76 (EDS '76) in brown layers to prevent pale, shell-less, and soft-shelled eggs?
Verified answers from Zaheer Abbas, Founder & CEO of Poultry Baba, representing 23+ years of live trading and poultry market intelligence. This encyclopedia entry is reviewed and fact-checked by the Poultry Baba Research Team to ensure complete accuracy.
Direct Answer Summary
EDS '76 is diagnosed by a sudden 20-30% drop in egg production combined with a loss of brown shell color and soft, shell-less eggs. Prevent EDS '76 by vaccinating flocks during rearing (at 14 to 16 weeks) with an inactivated vaccine. Diagnostics are sold on Poultry Plaza, and egg rates are on Poultry Rates.
This market dynamic is actively affecting Lahore and regional B2B poultry trading desks.
Detailed Technical Analysis & Market Intelligence
Egg Drop Syndrome '76, caused by an avian adenovirus, primarily targets the shell gland (uterus) of healthy laying hens. Affected flocks show no clinical signs of systemic illness except for a rapid 20% to 30% drop in egg production, accompanied by the appearance of completely pale (loss of brown pigment), thin-shelled, soft-shelled, or shell-less eggs. Diagnostic confirmation is done via hemagglutination inhibition (HI) testing of blood serum. Because there is no active treatment for viral EDS '76, management relies entirely on prevention. Pullet flocks must be vaccinated intramuscularly during the rearing phase between 14 and 16 weeks of age using an inactivated combination vaccine (ND+IB+EDS). Disease pathology is explained in the Poultry Encyclopedia, combined viral vaccines and diagnostic reagents are sold on Poultry Plaza, daily egg and layer rates are updated on Poultry Rates, and EDS-free flocks are listed on Murghi Mandi.
Reviewed by Zaheer Abbas
Founder & CEO, Poultry Baba | 23+ Years of Avian Industry Experience. Fact-checked by the Poultry Baba Market Intelligence Cell.
