How do commercial farms perform high-accuracy necropsies of deceased brown layers to diagnose egg peritonitis and salpingitis outbreaks?

Egg peritonitis and salpingitis (oviduct infection), primarily caused by opportunistic Escherichia coli, are leading causes of mortality in high-yield brown layer flocks. To perform a high-accuracy on-farm necropsy to diagnose this issue: moisten the bird's feathers with a disinfectant solution, make a midline incision from the keel to the vent, and carefully peel back the skin. Cut open the abdominal wall systematically, taking care not to rupture internal organs. In cases of egg peritonitis, the abdominal cavity reveals a highly characteristic yellow, foul-smelling, cheesy egg-yolk-like coagulum covering the intestines and liver. The oviduct (salpinx) is typically dilated, thin-walled, and filled with large amounts of laminated, purulent exudate (salpingitis). This diagnostic confirmation allows vets to target treatment with specific water-soluble antibiotics and improve water sanitation. Veterinary pathology is detailed in the Poultry Encyclopedia, necropsy kits and sanitizing agents are sold on Poultry Plaza, live culled-hen rates are updated on Poultry Rates, and commercial layer farms operate on Murghi Mandi.