Table 5.

Phenotypic correlations (r_p) with the feed efficiency traits, RFI, and total feed conversion ratio.

	RFI		FCR(t)		Liver weight		Melting rate
	rp	P	rp	P	rp	P	rp	P
Growth traits
BW84d (g)	−0.36	**	−0.45	***		ns		ns
BW96d (g)	−0.49	***	−0.48	***	0.26	*		ns
Feed intake during overfeeding		ns		ns		ns		ns
Total average daily gain		ns	−0.42	***		ns		ns
Total feed conversion ratio	0.74	***				ns		ns
Daily feeding rate(t)		Ns		ns		ns		ns
Daily feed intake(t)	0.54	***	0.29	*		ns		ns
Meal feed intake(t)		Ns		ns		ns		ns
Number of meals per day(t)		Ns		ns		ns		ns
Meal duration(t)		Ns		ns		ns		ns
Daily interval between visits(t)		Ns		ns		ns		ns
Carcass traits
Carcass weight	−0.45	***	−0.46	***	0.30	*		ns
Liver weight		Ns		ns			0.75	***
Melting rate		Ns		ns	0.75	***
Leg weight	−0.37	**	−0.39	***		ns		ns
Abdominal fat		Ns		ns		ns	−0.28	*
Muscle magret weight	−0.28	*	−0.31	**		ns		ns
Skin magret weight		Ns		ns		ns		ns

P are P-values for the test of H0: r_p = 0. _(t) : traits were computed over the entire test period. RFI: residual feed intake, BW84d and BW96d: body weight at 84 d and 96 d, respectively.

*: P < 0.05; **: P < 0.01; ***: P < 0.001.