ANSC 10200 Lecture 12: Animal Health and Biosecurity

• School: Purdue University
• Department: Animal Sciences
• Course: ANSC 10200
• Professor: Dr. Karcher

Document Summary

Learning objectives: recognize significance of immune system in combating infection and disease, outline importance of a good biosecurity plan for managing herd health, describe vaccines and considerations to take when selecting vaccine. Non-infectious: nutritional imbalances, metabolic disorders, trauma, toxic materials, metallic and chemical poisons, phytotoxins, zootoxins, mycotoxins. Infectious disease: caused by pathogen (bacteria, viruses, protozoa, fungi, or parasite, disturbance from entrance, growth, and activity of disease-causing organisms. Inflammation: abnormal body temperature, depression, anorexia, abnormal breathing, diarrhea, abortion. Non-specific vs. specific immune system: non-specific immunity, response is antigen-independent, there is immediate maximal response, not antigen specific, exposure results in no immunological memory. Specific immunity: response is antigen-dependent, there is a lag time between exposure and maximal response, antigen-specific, exposure results in immunological memory. Biosecurity/biocontainment defined: management practices designed to prevent or control the introduction/spread of harmful agents into an operation, bacteria, viruses, parasites, toxins, predators, genetics, biosecurity = exclusion, biocontainment = spread.