Biosecurity practices aim to protect herd health by preventing the introduction and spread of what?

• A. Economic losses
• B. Nutritional deficiencies
• C. Climate changes
• D. Pathogens

Answer: (D)

Biosecurity is about stopping the introduction and spread of disease-causing organisms. When you limit pathogens—bacteria, viruses, parasites, fungi—you reduce the risk of infectious disease outbreaks in the herd, protecting health and productivity. measures like quarantine for new stock, cleaning and disinfection, restricting access, clean water and feed, and pest control all help keep these pathogens from entering or moving around the herd. That’s why the focus is on pathogens. Economic losses can result from disease, but that’s a consequence rather than the direct target; nutritional deficiencies relate to diet and management, and climate changes are environmental factors not addressed by on-farm biosecurity.