A. disinfecting pens
B. regular cleaning of feed and water troughs
C. isolating sick animals
D. weekly vaccination of pigs
Correct Answer:
Option D – weekly vaccination of pigs
A. disinfecting pens
B. regular cleaning of feed and water troughs
C. isolating sick animals
D. weekly vaccination of pigs
Correct Answer:
Option D – weekly vaccination of pigs
Copyright warnings! Do not copy.