7. Cattle insecticides target:

a. Diseases b. Parasites c. Young calves d. Cows

8. An immunization program in a cattle herd targets:

a. Diseases b. All parasites

c. Internal parasites d. Hosts

9. In Oklahoma cattle herds which of the following is not a common external parasite?

a. Louse b. Tick c. Warts d. Heel fly (cattle grub)

10. Which of the following common infectious diseases does not affect

Oklahoma cattle herds?

a. Shipping fever b. Blackleg

c. Brucellosis d. Avian pox

11. Before any drug can be administered to livestock, the FDA must:

a. Review testing procedures by the developer

b. License the developer

c. Test and approve the drug

d. Approve drug testing requirements

12. When a vaccine is injected into an animal, the animal’s body:

a. Builds up antibodies against the organism

b. Builds up pathogens against the organism

c. Develops a natural immunity against the organism

d. Develops antiserurns

13. A vaccine that produces immunity against two or more diseases is called:

a. Polyvalent b. Multivalent

c. Bivalent d. Equivalent

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