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Table 4 Summary of 14 metabolite biomarkers for selecting the high-FE birds

From: Identification of biomarkers associated with the feed efficiency by metabolomics profiling: results from the broiler lines divergent for high or low abdominal fat content

Ion mode

Common name

Expression

Genetic correlations

Heritability

Fat line

Lean line

FCR

RFI

Positive

7-Ketocholesterol

2180.27

782.69

0.41 ± 0.25

0.54 ± 0.22

0.36 ± 0.13

Dimethyl sulfone

1935.83

770.09

0.40 ± 0.26

0.30 ± 0.23

0.33 ± 0.12

Hypoletin 8-gentiobioside

1783.14

625.76

0.35 ± 0.29

0.32 ± 0.26

0.31 ± 0.13

Epsilon-(gamma-glutamyl)-lysine

1531.94

851.93

0.19 ± 0.27

0.42 ± 0.21

0.25 ± 0.11

gamma-Glutamyltyrosine

720.39

1309.21

–0.42 ± 0.26

–0.39 ± 0.25

0.22 ± 0.10

Negative

2-Oxoadipic acid

1580.83

855.62

0.44 ± 0.20

0.46 ± 0.17

0.58 ± 0.13

L-Homoarginine

1762.28

670.93

0.34 ± 0.23

0.37 ± 0.20

0.53 ± 0.13

Mollicellin F

1418.72

806.64

0.38 ± 0.23

0.25 ± 0.21

0.43 ± 0.13

Testosterone

660.15

1114.50

–0.58 ± 0.20

–0.58 ± 0.18

0.43 ± 0.12

Adenosine 5'-monophosphate

1399.03

856.74

0.51 ± 0.23

0.30 ± 0.20

0.42 ± 0.12

Adrenic acid

766.70

1155.87

–0.68 ± 0.23

–0.38 ± 0.21

0.37 ± 0.12

(13Z,16Z)-Docosadienoic acid

790.03

1248.22

–0.67 ± 0.26

–0.42 ± 0.23

0.33 ± 0.12

3b-Hydroxy-5-cholenoic acid

1045.31

257.59

0.39 ± 0.31

0.66 ± 0.28

0.24 ± 0.12

Calcitriol

869.84

5096.83

–0.38 ± 0.32

–0.02 ± 0.29

0.21 ± 0.11