Neco 2021 Agricultural Science Question 13
Practice objective / multiple choice question 13 from the 2021 Neco Agricultural Science examination.
In a dairy herd the average milk yield is \(20\) L per day. The farmer selects the top \(20\%\) of cows for breeding; these cows produce on average \(30\%\) more milk than the herd average. With a heritability of \(0.4\) and a phenotypic standard deviation of \(4\) L, use the breeder's equation \(\Delta G = i \times h^{2} \times \sigma_{P}\) (where the selection intensity \(i\) for the top \(20\%\) is \(1.4\)) to estimate the expected increase in average herd yield in the next generation and state the new herd average (to two decimal places).
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About This Question
This is Neco 2021 Agricultural Science Question 13. It is one of the objective questions from the 2021 Neco Agricultural Science examination.
Difficulty level: Medium .
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