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Article

Genetic parameters for days open and pregnancy rates in US Holsteins using different editing criteria.

Journal of dairy science - 1 Dec 2004

Oseni S, Tsuruta S, Misztal I, Rekaya R

Abstract excerpt

The influence of various editing criteria for days open (DO) records on genetic parameter estimates of DO and pregnancy rates (PR) in US Holsteins was investigated. Data included first parity 305-d milk yield and DO records from 8 states: Georgia (GA), Florida (FL), North Carolina (NC), Texas (TX), Arizona (AZ), California (CA), New York (NY), and Wisconsin (WI). The pregnancy rate was computed as 1/[(DO -...

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Source

Identifiers

PMID: 15545397
DOI: 10.3168/jds.S0022-0302(04)73578-X

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