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Table 1 Mixed models of each fertility trait for Australian Thoroughbred horses. Foal, sire and dam inbreeding were estimated in separate models. Model descriptions are in R syntax, not full mathematical notation

From: The effects of inbreeding on covering success, gestation length and foal sex ratio in Australian thoroughbred horses

Outcome variable

Model type

Models

Gestation length

LMM

GL ~ mare.age + month + foal.sex + season + F + ped (mare) + ide (mare)

GL ~ mare.age + month + foal.sex + season + F + ped (sire) + ide (sire)

Foaling rate

Binomial GLMM

CS ~ mare.age + month + season + F + ped (mare) + ide (mare)

CS ~ mare.age + month + season + F + ped (sire) + ide (sire)

Foal sex ratio

Binomial GLMM

SR ~ mare.age + month + season + F + ped (mare) + ide (mare)

SR ~ mare.age + month + season + F + ped (sire) + ide (sire)

  1. LMM Linear mixed model, GLMM Generalised linear mixed model, GL Gestation length, CS Foaling rate, SR Foal sex ratio, mare.age = age of the mare at the time of covering, month = month of covering, F = inbreeding coefficient of the sire, dam or foal (models were run separately for each), ped = pedigree of the mare, ide = permanent environmental effect of the mare
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BMC Genomic Data

ISSN: 2730-6844

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