Identification of QTL regions and candidate genes for growth and feed efficiency in broilers

Table 2 Descriptive statistics for the evaluated growth and feed efficiency traits

Traits	N	Mean	SD	Min	Max	CV (%)^b
BW28 (g)	3314	1078	176	557	1530	16.32
BW42 (g)	3314	2206	365	1198	3120	16.55
ADFI (g/d)	3314	151.3	25.4	88.2	222.0	16.82
RFI (g/d)	3314	0.00	6.00	− 19.33	19.03	–
RFIa (g/d)	2453	0.00	5.84	− 17.99	18.13	–
ADG (g/d)	3314	80.56	15.72	40.43	127.86	19.52
FCR (g:g)	3314	1.89	0.15	1.43	2.39	7.77
AbF (g)	2453	34.73	11.17	1.20	90.80	32.17

BW28, body weight at 28 d of age; BW42, body weight at 42 d of age; ADFI, average daily feed intake; RFI, residual feed intake; RFIa, residual feed intake adjusted for weight of abdominal fat; ADG, average daily gain; FCR, feed conversion ratio; AbF, weight of abdominal fat; CV, coefficient of variation

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