Table 2 Descriptive statistics of recorded trait phenotypes

Individual traits (N = 2281)

Initial weight (g)

IW

21.8

1.7

52.4

8.0

Final weight (g)

FW

32.6

4.9

70.3

11.3

Weight gain: (\(FW{-}IW\)) (g)

WG

10.8

0.3

30.6

4.5

Relative weight gain: (\(\left( {\left( {FW{-}IW} \right)/FW} \right) \times 100\)) (%)

RG

32.8

1.8

64.3

8.1

Atom% ¹³C in muscle (%)

AMC

1.35

1.14

1.62

0.05

Atom% ¹⁵N in muscle (%)

AMN

1.01

0.54

1.76

0.12

Atom% ¹³C in liver (%)

ALC

1.59

1.27

1.77

0.04

Atom% ¹⁵N in liver (%)

ALN

1.64

0.77

2.00

0.13

Atom% ¹³C in adipose tissue (%)

AAC

1.17

1.09

1.55

0.02

Tank traits (N = 46)

Feed intake (g dry matter)^a

FI

363

163

556

110

Feed conversion ratio: (\(FI/FW - IW\))

FCR

0.69

0.64

0.78

0.03