Maintenance energy requirements (MER) and bodyweights for the pet dogs in the final dataset.

1Size subjectively scored as toy, small, medium, large, and giant, using the criteria of Hawthorne et al 2004 [18] and Hosgood & Scholl 1998 [85].2For most groups, activity level was classed as low (3 h/day) based upon the criteria of Butterwick and Hawthorne (1998) [7]; however, activity levels were classed as ‘resting’ when measurements were taken either when lying still in lateral recumbency or when cage rested. BW: body weight; DLW: doubly-labelled water; F: female; FE: feeding experiment; IC: indirect calorimetry; MER: maintenance energy requirement; M: male; Mix: study contains a mix of sexes; SD: standard deviation.Maintenance energy requirements (MER) and bodyweights for the pet dogs in the final dataset.