Herd size :
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average herd calving interval in days:
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number of cows culled per 100 head for whatever reason :
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average number of : inseminations per cow
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Total cost of infertility £
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Cost due to the calving interval :
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£
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Cost due to the culling :
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£
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Cost due to insemination :
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£
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Please Note: These calculations are an illustration only and do not represent a
detailed analysis. This illustration is based upon the following equation by Dr RJ Esslemont of the University of Reading (?):
Calving interval: £3 x herd size x (average herd calving interval - 360)
Culling rate: (number of cows culled per 100 head - 22) x £590
Insemination cost: (average number of inseminations per cow -1.3) x herd size x £20
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