Waec Model Questions Vol1 2022 Agricultural Science Question 6

Practice essay / theory question 6 from the 2022 Waec Model Questions Vol1 Agricultural Science examination. This question covers Animal Production, Dairy Nutrition, Feed Management, Economics of Production .

Waec Model Questions Vol1 2022 Agricultural Science Essay / Theory
Topics: Animal Production Dairy Nutrition Feed Management Economics of Production
Question 6 WAEC_MODEL_QUESTIONS_VOL1 • 2022 • AGRICULTURAL_SCIENCE • essay

A dairy farmer keeps 20 lactating cows. Each cow currently produces 15 L of milk per day. The farmer wishes to raise the average daily milk yield to 18 L per cow. The cows are fed a basal diet of 8 kg of roughage per day (energy value 1.2 Mcal kg⁻¹). To meet the extra energy requirement, the farmer will supplement the diet with a concentrate that provides 2.5 Mcal kg⁻¹. The price of the concentrate is ₦250 per kg, and the market price of milk is ₦120 per litre.

Question Parts

( a )
Calculate the total amount of milk (in litres) produced by the herd each day under the current production level.
( b )
Assuming that an additional 0.4 Mcal of metabolizable energy is required for each extra litre of milk produced, determine the extra energy (in Mcal) needed per cow to achieve the target yield of 18 L.
( c )
If the roughage intake remains at 8 kg per cow per day, calculate the amount of concentrate (in kg) that must be added to each cow’s diet to supply the extra 1.2 Mcal of energy. Show your working.
( d )
Discuss two non‑nutritional management practices that could help the farmer achieve the higher milk yield, explaining the rationale for each.

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About This Question

This is Waec Model Questions Vol1 2022 Agricultural Science Question 6. It is one of the essay questions from the 2022 Waec Model Questions Vol1 Agricultural Science examination.

The question covers Animal Production, Dairy Nutrition, Feed Management, Economics of Production .

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