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Table 3 Accuracy [mean (SD) of 100 replicates] of EBV for different structures of groups with sizes up to 12 (average 9.6)

From: Estimation of variance components and prediction of breeding values based on group records from varying group sizes

Litter and pen effect simulated

Model

Placement of animals

Group records

Individual records

Yes

MALP with given true variances

A litter in 1 pen

0.529 (0.034)

0.696 (0.019)

  

A litter in 2 pen

0.480 (0.038)

0.702 (0.019)

  

Randomly in pens

0.407 (0.052)

0.706 (0.018)

No

MA with given true variances

A litter in 1 pen

0.598 (0.027)

0.714 (0.017)

  

A litter in 2 pen

0.550 (0.030)

0.714 (0.017)

  

Randomly in pens

0.476 (0.038)

0.715 (0.017)

  1. SD, standard deviation; EBV, estimated breeding value; MA, model includes additive genetic effects; MALP, model includes additive genetic, litter and pen effects