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Table 3 Metabolites showing different concentrations (mmol/L) in the plasma, liver, and caecal content of CON and ARG birds at D49

From: Feeding broiler chickens with arginine above recommended levels: effects on growth performance, metabolism, and intestinal microbiota

Metabolite

Treatmenta

SE

P-value

Variationb

CON

ARG

Plasma

 2-Oxoglutarate

9.64E-02

7.67E-02

1.61E-02

0.004

 Acetate

4.37E-02

5.94E-02

2.23E-02

0.079

 Arginine

3.25E-01

4.09E-01

1.38E-02

0.018

 Betaine

6.06E-01

6.90E-01

8.62E-02

0.023

 Creatine

7.67E-02

9.58E-02

8.96E-02

0.060

 Fumarate

1.39E-02

1.22E-02

2.83E-02

0.057

 Glutamine

1.46E + 00

1.32E + 00

2.22E-03

0.043

 Histidine

9.97E-02

1.17E-01

1.77E-01

0.009

 Mannose

4.30E-02

3.95E-02

1.56E-02

0.066

 Methanol

5.35E-02

4.19E-02

4.67E-03

0.026

Liver

 Aspartate

5.02E-03

5.81E-03

1.14E-03

0.078

 Creatine

3.60E-04

5.40E-04

2.44E-04

0.056

 Glutathione

1.50E-04

6.00E-05

1.09E-04

0.064

 Leucine

1.58E-03

2.00E-03

5.82E-04

0.066

 Methionine sulfoxide

2.00E-05

3.00E-05

7.05E-06

0.034

 Phenylalanine

7.90E-04

1.02E-03

3.03E-04

0.062

 Threonine

1.77E-03

2.12E-03

5.41E-04

0.094

Caecal content

 Leucine

2.47E-03

1.79E-03

7.53E-04

0.017

 Thymine

4.80E-04

6.50E-04

2.29E-04

0.051

  1. aMean of 14 birds/treatment
  2. bRatio of CON mean over ARG mean: ↑, ratio < 1; ↓, ratio > 1
  3. SE standard error