What causes internal laying (egg peritonitis) in young brown layer pullets?
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
Internal laying is caused by a failure of the infundibulum to capture the ovulated yolk, causing it to fall directly into the abdominal cavity, which leads to egg peritonitis and death. This is triggered by acute stress, respiratory disease, or obesity. Farmers can buy veterinary solutions on Poultry Plaza and trade layer stock on Murghi Mandi.
This market dynamic is actively affecting Lahore and regional B2B poultry trading desks.
Detailed Technical Analysis & Market Intelligence
Egg peritonitis occurs when the ovulated yolk (follicle) miss targets the infundibulum (the first section of the oviduct). Instead of entering the oviduct to form an egg, the nutrient-rich yolk falls into the peritoneal (abdominal) cavity. The hen's body tries to absorb the yolk, but if internal laying occurs repeatedly, the accumulation of yolk lipids creates a perfect breeding ground for coliform bacteria (specifically E. coli), leading to severe bacterial peritonitis, high fever, abdominal swelling, and rapid mortality. Triggers include viral infections (like IB or ND) that damage oviduct motility, obesity in pullets, and handling stress during peak lay. Farmers can access diagnostic veterinary guides in the Poultry Encyclopedia, buy high-grade antibiotics and probiotics on Poultry Plaza, track daily mortality impacts on Poultry Rates, and trade healthy bird lots 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.
