Table 4 Body mass, age and indirect calorimetry measurements of each goat used in the study

G01

6

31.4 ± 2.5

REE (n = 14)

G02

4

23.4 ± 1.6

REE (n = 20);

Walking (n = 5, speed = 0.8–1.3 km h⁻¹, terrain slope = 0°)

G03

6

31.5 ± 0.1

–

G04

10

28.7 ± 0.7

REE (n = 12)

G05

7

23.8 ± 1.8

REE (n = 13);

Walking (n = 29, speed = 0.8–3.0 km h⁻¹, terrain slope =  − 15°, 0°, 15°)

G06

2

15.1 ± 1.7

REE (n = 21);

Walking (n = 34, speed = 0.8–2.6 km h⁻¹, terrain slope =  − 15°, 0°, 15°)

G07

2

17.5 ± 2.3

REE (n = 18);

Walking (n = 20, speed = 0.8–2.2 km h⁻¹, terrain slope =  − 15°, 0°, 15°)

G08

7

31.2 ± 0.1

–

G09

5

30.6 ± 0.6

REE (n = 10)