Quality of breeding value predictions from longitudinal analyses, with application to residual feed intake in pigs

Table 1 Average LR statistics and p-values of the tested factors for the prediction of SBV

Partial data	Whole data			\({\boldsymbol{\Delta }{\varvec{\mu}}}_{{\varvec{w}}{\varvec{p}}}\)	\({{\varvec{b}}}_{{\varvec{w}},{\varvec{p}}}\)	\({{\varvec{\rho}}}_{{\varvec{w}},{\varvec{p}}}\)
No phenotypic information from candidates' descendants	With phenotypic information from candidates' descendants	Mean^a		0.00 [− 0.01,0.01]	0.84 [0.79,0.89]	0.61 [0.58,0.64]
		p_value	SBV	0.78	0.03	0.02
			Line	0.22	< 0.01	0.25
			\(\mathbf{A}\) or \(\mathbf{H}\) matrix	0.76	0.71	0.70
Phenotypes, pedigree information	Phenotypes, pedigree and genomic information	Mean^a		− 0.08 [− 0.09,− 0.07]	0.96 [0.92,1.00]	0.89 [0.87,0.92]
		p_value	SBV	< 0.01	0.68	0.37
		p_value	Line	0.41	0.97	0.61

^a95% confidence interval in bracket
Bias: \({\Delta \mu }_{wp}=\frac{\overline{{ESBV }_{p}}-\overline{{ESBV }_{w}}}{{\mathbf{L}}_{\widehat{\mathbf{G}},\mathbf{l}}^{\mathbf{^{\prime}}}\widehat{\mathbf{G}}{\mathbf{L}}_{\widehat{\mathbf{G}},\mathbf{l}}}\); dispersion: \({b}_{w,p}=\frac{cov\left({ESBV}_{p},{ESBV}_{w}\right)}{var\left({ESBV}_{p}\right)}\); Ratio of accuracy: \({\rho }_{w,p}=\frac{cov\left({ESBV}_{p},{ESBV}_{w}\right)}{\sqrt{var\left({ESBV}_{p}\right)var\left({ESBV}_{w}\right)}}\)
Indices w = estimates obtained with more information,\(p\) = estimates obtained with less information

ISSN: 1297-9686