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11 Cards in this Set
- Front
- Back
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Cow Repro Stats
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Cycle: 18-24 d (avg: 21d)
Estrus: (Day 0) lasts 4-24 h (avg: 18 h) Ovulates: 30 h after onset of behavioral estrus Fertilization: in oviduct Blastocyst: In uterus around day 5 Pregnancy: 279-290 d Silent Heat common with first Ov PP |
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Calving to Conception
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< 90 days open
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Calving to First Insemination Interval
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< 70 days
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Conception rate to first insemination
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> 60%
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Number of Inseminations per conception
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1.5
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Abortions
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< 3%
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Culling due to infertility
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< 5%
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Length of Breeding Period
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< 63 days
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Pregnancy rate <35 days after breeding season
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> 95%
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Percentage of calves born alive
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> 93%
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Causes of Economic Loss due to Fertility Problems
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incorrectly timed AI
culling for fertility reasons of high merit animals increased calving interval |
