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Table 8 Posterior means of correlated (numbers in a row) additive genetic superiority of the selected group when the best 10% were selected based on low \({\text{RFI}}_{\text{P}}\) or \({\text{RFI}}_{\text{G}}\)

From: Genetic parameters for body weight and different definitions of residual feed intake in broiler chickens

Trait

\({\text{BW}}_{{{\text{m}}\left( {\text{t}} \right)}}\)

\({\text{BW}}_{{{\text{f}}\left( {\text{t}} \right)}}\)

\({\text{BW}}_{{{\text{m}}\left( {{\text{t}} - 6} \right)}}\)

\({\text{BW}}_{{{\text{f}}\left( {{\text{t}} - 6} \right)}}\)

\({\text{FI}}_{{{\text{m}}\left( {\text{t}} \right)}}\)

\({\text{FI}}_{{{\text{f}}\left( {\text{t}} \right)}}\)

\({\text{FI}}_{{{\text{m}}\left( {{\text{t}} - 6} \right)}}\)

\({\text{FI}}_{{{\text{f}}\left( {{\text{t}} - 6} \right)}}\)

\({\text{Gain}}_{{{\text{m}}\left( {\text{t}} \right)}}\)

\({\text{Gain}}_{{{\text{f}}\left( {\text{t}} \right)}}\)

\({\text{Gain}}_{{{\text{m}}\left( {{\text{t}} - 6} \right)}}\)

\({\text{Gain}}_{{{\text{f}}\left( {{\text{t}} - 6} \right)}}\)

\({\text{RFI}}_{{{\text{P}}\left( {\text{m tdays}} \right)}}\)

− 17.3

− 5.2

− 12.9

− 15.7

− 98.2

− 65.9

− 71.6

− 62.2

− 33.8

− 21.8

− 28.1

− 25.7

\({\text{RFI}}_{{{\text{P}}\left( {\text{f tdays}} \right)}}\)

− 63.7

− 47.6

− 50.1

− 54.5

− 79.6

− 74.4

− 69.7

− 67.7

− 19.0

− 12.5

− 25.6

− 24.8

\({\text{RFI}}_{{{\text{P}}\left( {{\text{m t}} - 6{\text{days}}} \right)}}\)

− 10.8

1.1

− 6.4

− 10.6

− 58.0

− 39.4

− 76.3

− 56.2

− 14.8

− 7.2

− 12.1

− 21.1

\({\text{RFI}}_{{{\text{P}}\left( {{\text{f t}} - 6{\text{days}}} \right)}}\)

− 38.1

− 20.0

− 3.6

− 17.8

− 54.3

− 46.9

− 51.1

− 56.2

− 3.8

− 6.0

− 7.2

− 7.0

\({\text{RFI}}_{{{\text{G}}\left( {\text{m tdays}} \right)}}\)

− 0.4

6.90

0.52

− 8.8

− 58.2

− 43.6

− 46.2

− 43.6

1.0

− 4.9

− 4.6

− 8.7

\({\text{RFI}}_{{{\text{G}}\left( {\text{f tdays}} \right)}}\)

− 20.6

− 3.3

− 16.5

− 21.0

− 56.1

− 49.0

− 48.6

− 46.6

− 4.1

0.8

− 7.1

− 10.3

\({\text{RFI}}_{{{\text{G}}\left( {{\text{m t}} - 6{\text{days}}} \right)}}\)

− 3.1

6.9

− 0.5

− 5.8

− 47.4

− 31.0

− 62.3

− 47.4

− 7.0

− 1.7

− 0.3

− 13.9

\({\text{RFI}}_{{{\text{G}}\left( {{\text{f t}} - 6{\text{days}}} \right)}}\)

− 20.8

− 4.5

11.6

− 2.7

− 42.0

− 35.1

− 37.0

− 43.2

3.5

− 0.03

3.6

2.0

  1. Abbreviations are as defined in Table 2
  2. Numbers in italic characters are correlated responses within sexes and ages