When choosing corrosion protection for export egg cages, hot-dip galvanizing and al-zinc alloy coating are two leading options. This article compares their performance in real-world poultry farm conditions—especially under high humidity and manure exposure—using industry test data. It explains why Q235 steel alone can’t guarantee 15–20 years of service life and highlights how proper surface treatment combined with maintenance extends equipment durability. Practical insights help poultry farmers make cost-effective decisions that improve ROI and ensure long-term operational stability.