Predictive abilities of different statistical models for analysis of survival data in dairy cattle.

doi:10.3168/jds.2009-2132

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Article

Predictive abilities of different statistical models for analysis of survival data in dairy cattle.

Journal of dairy science - 1 Nov 2009

Holtsmark M, Heringstad B, Ødegård J

Abstract excerpt

The objective of this study was to compare alternative trait definitions and statistical models for genetic evaluation of survival in dairy cattle. Data from the first 5 lactations of 808,750 first-crop daughters of 3,064 Norwegian Red sires were analyzed. Seven sire models were used for genetic analyses: linear and threshold cross-sectional models for binary survival scores from first lactation; a linear...

Topics

Animals
Cattle
Dairying
Data Interpretation, Statistical
Female
Genetic Variation
Lactation
Male
Models, Statistical
Survival Analysis

Source

Open in PubMed

Identifiers

PMID: 19841233
DOI: 10.3168/jds.2009-2132

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