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Table 5 Spearman's rank correlation and selection coincidence of top 50 sires for residual feed intake (RFI) and dry matter intake (DMI) with at least five progenies in three different environmental gradients

From: Genotype-by-environment interactions for feed efficiency traits in Nellore cattle based on bi-trait reaction norm models

Scenariosa

Spearman's correlation

Selection coincidenceb

Residual feed intake (RFI)

 Medium EG vs low EG

0.85

73.3%

 Medium EG vs high EG

0.89

80.0%

 Low EG vs high EG

0.61

53.3%

Dry matter intake (DMI)

 Medium EG vs low EG

0.83

66.7%

 Medium EG vs high EG

0.90

70.0%

 Low EG vs high EG

0.57

40.0%

Number of sires and progenies under different environmental gradients (EG)

Low EG

Medium EG

High EG

 Number of sires with progeny

45

48

26

 Number of average progeny/sire

28

58

9

 Total number of progenies

1273

2792

237

  1. aMedium environmental gradient (EG) is the comparison criterion for selection coincidence
  2. bRepresents the percentage of sires in common between environments gradients evaluated
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Genetics Selection Evolution

ISSN: 1297-9686