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Table 3 Inbreeding regression coefficients for the morphological traits and defects analysed in the PRE horse

From: Genetic inbreeding depression load for morphological traits and defects in the Pura Raza Española horse

 

\({{\varvec{F}}}_{3}\)

\({{\varvec{F}}}_{6}\)

\({\varvec{F}}\)

\(\Delta {\varvec{F}}\)

Height of withers

–1.29*

–1.43*

–1.97*

–14.40*

Height at withers

0.56

–0.74

–6.64*

–60.70*

Length of shoulder

–0.36

0.28

–2.76*

–14.34*

Scapular-ischial length

–5.06*

–7.87*

–8.12*

–71.40*

Knock knee***

–0.27

–0.37*

–0.24**

–2.37*

Cresty neck***

–0.63

0.30

1.21**

11.23*

  1. *Significant at p < 0.01; **significant at p < 0.05; ***only animals that present the defects were considered (classes > 1 in the scale)
  2. \({F}_{3}\) inbreeding at 3rd generation, \({F}_{6}\) inbreeding at 6th generation;\(F\) global inbreeding coefficient, \(\Delta F\) intergenerational average increase in inbreeding