Examination Practice Questions And

Illinois Livestock Manager Certification Examination Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which of the following nutrients is considered the most important for

milk production in dairy cattle?

a) Vitamin A

b) Protein

c) Calcium

d) Iron

Protein is essential for milk synthesis and overall growth in dairy cattle.

• What is the ideal body condition score (BCS) for a beef cow at calving?
• 2 1 / 4

• 3
• 5
• 7

A BCS of 5 indicates adequate energy reserves for calving and lactation.

• Which parasite is most commonly associated with anemia in young

lambs?

a) Liver fluke

b) Haemonchus contortus (barber pole worm)

c) Coccidia

d) Lungworm

Haemonchus contortus feeds on blood in the abomasum, causing anemia and weakness.

4. The most common cause of respiratory disease in pigs is:

a) Salmonella

b) Porcine reproductive and respiratory syndrome (PRRS) virus

c) Foot-and-mouth disease

d) Bovine viral diarrhea

PRRS virus affects the respiratory and reproductive systems in pigs and is highly contagious.

5. In poultry, coccidiosis is caused by:

a) Bacteria

b) Virus 2 / 4

c) Protozoa

d) Fungus

Coccidiosis is a parasitic disease caused by Eimeria species, leading to intestinal damage.

• Which of the following is a major function of the rumen in cattle?

a) Absorption of vitamins

b) Protein synthesis

c) Fermentation of fibrous feed

d) Excretion of waste

The rumen hosts microbes that ferment cellulose and other fibers into volatile fatty acids for energy.

• Which vitamin deficiency in poultry leads to “crazy chick disease”?

a) Vitamin A

b) Vitamin B1 (Thiamine)

c) Vitamin D

d) Vitamin E

Thiamine deficiency causes neurological symptoms in chicks, including tremors and incoordination.

8. The primary cause of bloat in cattle is:

a) Viral infection

b) Parasitic infection

c) Rapid consumption of lush legumes

d) Mineral deficiency 3 / 4

Bloat occurs when gases from fermentation accumulate in the rumen, often after eating legumes like alfalfa.

• Which breed of cattle is known for high milk fat content?

a) Angus

b) Hereford

c) Jersey

d) Charolais

Jerseys produce milk with higher butterfat, making it ideal for cheese and cream production.

• What is the gestation period of a sow?
• 90 days
• 150 days
• 114 days
• 280 days

The average gestation for pigs is 114 days (about 3 months, 3 weeks, and 3 days).

• Which mineral deficiency causes “white muscle disease” in

lambs and calves?

a) Copper

b) Iron

c) Selenium

d) Zinc

• / 4