4. Food Animal and Herd Health

Herd Health Principles — Quiz

Test your understanding of herd health principles with 5 practice questions.

Practice Questions

Question 1

A veterinary epidemiologist is investigating a herd where the incidence rate of a specific disease has significantly increased over the past three months. Which of the following epidemiological measures would be most appropriate to calculate to understand the rate at which new cases are occurring in the susceptible population?

Question 2

In a dairy herd of 500 cows, a diagnostic test for a subclinical metabolic disorder is performed. If 75 cows test positive, and the test has a sensitivity of 90\% and a specificity of 85\%, what is the estimated true number of infected cows in the herd?

Question 3

A veterinarian is implementing a 'test and cull' strategy for Bovine Viral Diarrhea (BVD) in a beef herd. Which characteristic of the diagnostic test used is most crucial for effectively reducing the prevalence of persistently infected (PI) animals?

Question 4

Which of the following management strategies is most effective in mitigating the risk of antimicrobial resistance development within a herd, beyond simply reducing antibiotic use?

Question 5

A veterinary epidemiologist is investigating a sudden increase in cases of Bovine Respiratory Disease (BRD) in a feedlot. The investigation reveals that new calves introduced from multiple sources are developing BRD shortly after arrival. This situation best exemplifies a failure in which aspect of herd health management?