How do you perform a professional post-mortem examination (necropsy) on an aged brown layer hen to diagnose Fatty Liver Hemorrhagic Syndrome (FLHS)?

Fatty Liver Hemorrhagic Syndrome (FLHS) is a major cause of mortality in caged brown layers. To diagnose FLHS, a systematic necropsy must be performed: wet the feathers with disinfectant, make a ventral midline incision from the cloaca to the neck, and reflect the skin and breast muscle to expose the abdominal cavity. Upon opening, look for large quantities of liquid fat in the abdomen and check the liver. A positive diagnosis is confirmed when the liver is extremely enlarged, pale yellow to greasy-orange, fragile (breaks easily), and covered with massive focal hemorrhages, subcapsular hematomas, or free blood in the abdomen from liver rupture. Veterinary pathology is detailed in the Poultry Encyclopedia, necropsy kits, protective gear, and disinfectants are sold on Poultry Plaza, current spent-hen rates are updated on Poultry Rates, and commercial layer flocks are traded on Murghi Mandi.