Table 3 Concentration of indoles (µg/kg wet sample) and NH₄⁺ (mmol/kg wet sample) in digesta from Co2 and Co3

Co2

 NH₄⁺

8.45 (5.29–13.5) ^b

7.82 (4.64–13.2) ^b

4.76 (3.13–7.25) ^a

 Indoles

41.7 (25.9–67.0) ^b

37.7 (20.1–70.6) ^b

17.3 (12.2–24.6) ^a

 Indole-3-acetate

1.31 (0.74–2.33) ^a

14.1 (6.65–29.8) ^b

2.27 (1.51–3.4) ^a

 Indole-3-propionate

1.54 (0.93–2.54)

1.11 (0.62–1.99)

1.55 (1.01–2.39)

 Indol-1-benzopyrrol

2.98 (1.66–5.35)

2.3 (1.06–5.03)

1.47 (0.95–2.28)

 Indole-3-methylindole

22.4 (10.0–50.2) ^b

9.67 (3.32–28.1) ^ab

6.78 (3.73–12.3) ^a

 L-Tryptophan

12.5 (4.36–36.1)

10.6 (2.64–42.5)

4.85 (2.23–10.5)

Co3

 NH₄⁺

11.5 (7.15–18.4) ^b

7.51 (4.43–12.7) ^ab

5.82 (3.82–8.86)^a

 Indoles

42.1 (26.1–67.9) ^b

35.4 (18.8–66.4) ^b

16.7 (11.9–23.7) ^a

 Indole-3-acetate

1.15 (0.66–2.0) ^a

10.7 (5.12–22.3) ^b

1.81 (1.2–2.74) ^a

 Indole-3-propionate

1.35 (0.82–2.23)

0.84 (0.46–1.54)

1.29 (0.84–1.98)

 Indol-1-benzopyrrol

3.7 (2.04–6.71) ^b

1.3 (0.6.0–2.83) ^a

1.83 (1.2–2.79) ^a

 Indole-3-methylindole

22.3 (9.83–50.6) ^b

9.0 (3.07–26.4)^ab

6.46 (3.59–11.6) ^a

 L-Tryptophan

12.8 (4.4–37.1)

13.1 (3.2–53.8)

5.12 (2.37–11.1)