If Farm A has 300 cows with a cull rate of 40%, age at 1st calving of 29 months, and non-completion rate of 15%, how many heifers the does dairy need per year?
Question
If Farm A has 300 cows with a cull rate of 40%, age at 1st calving of 29 months, and non-completion rate of 15%, how many heifers the does dairy need per year?
Solution
To calculate the number of heifers the dairy needs per year, we need to consider the cull rate and the non-completion rate.
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Calculate the number of cows culled each year: 300 cows * 40% cull rate = 120 cows
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Calculate the number of heifers that do not complete the process each year: 120 heifers * 15% non-completion rate = 18 heifers
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Add the number of culled cows and the non-completing heifers to find the total number of heifers needed each year: 120 cows + 18 heifers = 138 heifers
Therefore, the dairy needs 138 heifers per year.
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