Systematic analysis of feeding behaviors and their effects on feed efficiency in Pekin ducks

Table 2 Phenotypic correlation between feeding and other traits

	Total feed time	Daily feed intake	Daily feeding rate	Between-meal pause	Meal feed intake	Meal duration	BW 19	BW 42	BWG
BW 19	0.08	0.33**	0.10	0.14*	0.36**	0.15**	1.00	0.44**	−0.07
BW 42	0.22**	0.62**	0.07	−0.13*	0.32**	0.1	0.36**	1.00	0.90**
BWG	0.20**	0.44**	0.03	−0.19**	0.11*	0.04	−0.07	0.9**	1.00
RFI	0.23**	0.58**	0.14*	−0.07	0.23**	0.12*	0.03	0.01	0.00
FCR	0.16**	0.45**	0.14*	0.06	0.27**	0.15**	0.44**	−0.13*	−0.34**
FI	0.31**	0.84**	0.15*	−0.12*	0.33**	0.16**	0.31**	0.65**	0.55**

BW 19: average body eight at d 19; BW 42: average body eight at d 42; RFI, residual feed intake; FCR, feed conversion ratio.; FI, feed intake; “**“P value < 0.01; ”*” P value < 0.05

ISSN: 2049-1891