Reliabilities for GEBV’s

Reliabilities on GEBV’s are published

In November 2015 NAV starts to publish reliabilities along with the GEBV for genomically tested bulls. The estimated reliabilities (%) for candidate bulls are presented per bred for the main traits in table 1. The differences in the level of the reliabilities can to a large extend be explained by the differences in size of the reference populations for the three breeds.

 

Table 1 Average GEBV reliabilities (%) for bull calves born in 2014

Traits Holstein RDC Jersey
Yield 74 67 67
Growth 60 49 28
Fertility 65 47 42
Birth 70 57 44
Calving 64 43 65
Udder health 68 57 56
Other disease 45 38 26
Claw health 43 33 -
Longevity 61 38 37
Frame 73 58 63
Feet & Legs 68 54 53
Udder 73 55 60
Milking speed 69 66 60
Temperament 62 53 27