2026-06-28http://hdl.handle.net/123456789/337588Poultry breeder farms and hatcheries are important nodes in the poultry production chain. Poor biosecurity in these facilities not only reduces the quality and quantity of day-old birds produced, but also contributes to the spread of pathogens, causes environmental pollution, and affects workers’ health.5p.application/pdfFAOBrochure, flyer, fact-sheet