Gce Model Questions Vol1 2025 Agricultural Science Question 6

Practice essay / theory question 6 from the 2025 Gce Model Questions Vol1 Agricultural Science examination. This question covers Animal Production, Dairy Management, Genetic Improvement, Cost‑Benefit Analysis .

Gce Model Questions Vol1 2025 Agricultural Science Essay / Theory
Topics: Animal Production Dairy Management Genetic Improvement Cost‑Benefit Analysis
Question 6 GCE_MODEL_QUESTIONS_VOL1 • 2025 • AGRICULTURAL_SCIENCE • essay

A smallholder keeps a dairy herd of 20 milking cows. The average lactation length is 305 days and the average daily milk yield per cow is 15 L. The farmer wishes to improve the herd’s genetic merit by introducing a breeding programme that uses artificial insemination (AI) with a bull that has an 8 % higher milk‑yield potential. The cost of AI per service is ₦2 500 and each cow requires on average 1.2 services per successful conception. Feed cost is ₦120 per litre of milk produced (including concentrate and roughage). The price of milk is ₦180 per litre. Veterinary and other overhead costs amount to ₦150 000 per year.

Question Parts

( a )
Calculate the total annual milk production of the herd before the breeding programme.
( b )
Estimate the expected increase in total milk production after the programme, assuming the 8 % genetic gain is fully expressed across the herd.

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About This Question

This is Gce Model Questions Vol1 2025 Agricultural Science Question 6. It is one of the essay questions from the 2025 Gce Model Questions Vol1 Agricultural Science examination.

The question covers Animal Production, Dairy Management, Genetic Improvement, Cost‑Benefit Analysis .

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