Secondary Data (Leaving Cert Agricultural Science): Quizzes

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Secondary Data
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What is secondary data in animal production?

Info already collected by researchers

What is the formula for daily live-weight gain (DLG)?

Final wt - Initial wtDays\frac{\text{Final wt - Initial wt}}{\text{Days}}

What does a higher DLG value indicate?

Good nutrition and management practices

What is the formula for feed conversion rate (FCR)?

Total feed intakeWt gain\frac{\text{Total feed intake}}{\text{Wt gain}}

Which FCR value indicates better feed efficiency?

A lower FCR value

Animal: 450 kg to 530 kg in 60 days. What is the DLG?

1.331.33 kg/day

80 kg gain, 426 kg feed intake. What is the FCR?

5.335.33

How does evening milk fat content compare to morning milk?

Evening milk has higher fat (4.2% vs 3.7%)

What should you check first when interpreting secondary data?

Time period and accuracy

Why are animals with low FCR more desirable?

More profitable and environmentally sustainable

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