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Table 4 Posterior means of genetic correlations (PSD in parentheses) between phenotypic and genetic residual feed intake (\({\text{RFI}}_{\text{P}}\) and \({\text{RFI}}_{\text{G}} ,\) respectively)

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

Trait

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

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

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

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

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

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

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

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

       

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

0.80 (0.06)a

      

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

0.68 (0.11)b

0.63 (0.14)

     

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

0.70 (0.10)

0.71 (0.09)b

0.70 (0.09)a

    

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

0.94 (0.04)

0.77 (0.07)

0.67 (0.12)

0.72 (0.10)

   

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

0.78 (0.07)

0.95 (0.02)

0.64 (0.16)

0.71 (0.10)

0.80 (0.07)a

  

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

0.65 (0.11)

0.60 (0.15)

0.98 (0.02)

0.69 (0.09)

0.66 (0.12)b

0.63 (0.16)

 

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

0.67 (0.10)

0.67 (0.10)

0.67 (0.09)

0.98 (0.02 )

0.71 (0.11)

0.69 (0.11)b

0.68 (0.09)a

  1. Abbreviations are as defined in Table 2
  2. Numbers in italic characters are genetic correlations between \({\text{RFI}}_{\text{P}}\) and \({\text{RFI}}_{\text{G}}\) at the same sex and age
  3. aGenetic correlations of \({\text{RFI}}_{\text{P}}\) and \({\text{RFI}}_{\text{G}}\) between sexes within ages
  4. bGenetic correlations of \({\text{RFI}}_{\text{P}}\) and \({\text{RFI}}_{\text{G}}\) between ages within sexes