Jamb Agricultural Science 2021 Past Questions and Answers

Question 46:

• JAMB 2021

Layer's ration contains more limestone than grower's ration because limestone

A. Is difficult for the growers to digest
B. Stimulates layer's appetite
C. Reduces the acidity in the gut if growers
D. Supplies sufficient minerals to layers for shell formation

Question 47:

• JAMB 2021

Which of the following is not a method of improving rangeland?

A. Practicing continuous grazing
B. Routine and regular weeding
C. Routine reseeding
D. Regular application of fertilizers

Question 48:

• JAMB 2021

Miracidium is one of the stages in the life cycle of

A. Roundworm
B. Liver fluke
C. Tapeworm
D. Tick

Question 49:

• JAMB 2021

Which of the following is not a symptom of foot and mouth disease of cattle?

A. Excessive production of saliva
B. Sores on feet and tongue
C. Lameness
D. Blood stained diarrhea

Question 50:

• JAMB 2021

Heavy infestation of liver fluke causes poor absorption of fats in livestock by

A. Blocking bile ducts thus preventing flow of bile
B. Destroying fat-digesting enzymes
C. Reducing ingestion of fats
D. Inhibiting the action of digestive enzymes