. 2020 Oct 7;99(12):7066–7075. doi: 10.1016/j.psj.2020.09.076

Table 1.

Feed efficiency and phenotype data for female and male chickens with high and low residual feed intake.

Parameter	Males		Females
Parameter	HFE	LFE	HFE	LFE
Daily feed intake(g)	75.30 ± 10.58	95.85 ± 6.73	65.63 ± 4.82^A	82.95 ± 1.69^B
Daily BW gain(g)	27.50 ± 4.58	22.00 ± 2.05	21.83 ± 0.95^A	18.17 ± 0.29^B
FCR (g/g)	2.75 ± 0.21^A	4.37 ± 0.20^B	3.01 ± 0.15^A	4.57 ± 0.09^B
RFI (g)	−13.02 ± 0.92^A	13.56 ± 1.47^B	−11.79 ± 2.55^A	11.89 ± 1.62^B

^A,BDifferent capital letters indicate that the difference is statistically significant (P < 0.01). HFE and LFE denote high feed efficiency and low feed efficiency, respectively.

Abbreviations: FCR, feed conversion ratio; RFI, residual feed intake.