1
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2
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3
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4
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- Record key
- Record fields
- Status and production data
- Up to 50 test-day segments
- Up to 50 reproductive events
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5
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- Breeding events from current lactation records stored
- Different event type used (B)
- Pregnancy confirmation and estimated date derived from subsequent test
date
- Service sire derived from progeny
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6
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- Lactation or heifer ID/breeding records
- 2,336,621 cows calving in 2003
- 304,183 heifers born in 2002
- 67% include pregnancy confirmation
- Most confirmations are affirmative
- 76% confirmed pregnant
- 24% confirmed not pregnant
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7
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- Reproductive record (format 5)
- Reporting from 2 DRPCs
- 57% of all cows
- Reporting herds with 10+ calvings
- 71% reported data in format 5
- 24% reported breeding dates only (format 4)
- 81% reported either pregnancy confirmation (format 4) or diagnosis
(format 5)
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8
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- Cows
- 86% include at least 1 breeding
- Mean number of breedings: 2.1
- Heifers
- 82% include at least 1 breeding
- Mean number of breedings: 1.5
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9
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- 89% of breedings include service sire
- Almost no estrus synchronization
- Very few embryo transfers
- As either donor or recipient
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10
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- Daughter pregnancy rate evaluation
- Pregnancy status used to improve estimates of days open for lactations
without subsequent calving
- Pedigree validation
- Planned evaluation of male fertility
- Research resource
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11
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- 111,546 Holsteins
- Born June – December 2004
- Registry status 75 –100%
- Not embryo transfer
- Sire and dam reported
- Comparison
- Match: 48.7%
- Service sire unknown: 49.3%
- Sires different: 2.0%
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12
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- Allow breeds to query AIPL database prior to issuance of registration:
- Dam's calving date
- Dam's service sire
- Calf pedigree
- Benefits:
- Use of data recorded closest to event
- Conflicts resolved prior to registration
- Conflicts between breed and DHI reduced
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13
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- Extensive set of reproduction information collected
- High proportion of recent cows have some data
- Used to improve DPR
- May add to accuracy of sire identification
- Data for planned male fertility evaluation
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