Table 1.

A comparison of different equations for estimating the live weight of working donkeys and their respective regression coefficients (R²).

Source	Equation	R 2
Nengomasha et al. [10], Zimbabwe	Live weight (kg)=heart girth (cm)2.83/4786 (for donkeys above 3 years)	0.86
	Live weight (kg)=heart girth (cm)2.8/4266 (for donkeys below 3 years)	0.88
Nininahazwe et al. [12], West Africa	Estimated LW (kg) = 2.55 × HG (cm) − 153.49	0.81
	Estimated LW kg = heart girth (cm)2.68/2312	0.81
Pearson and Ouassat [9], Morocco	Live weight (kg)=heart girth (cm)2.12/2188 (for donkeys above 3 years)	0.81
	Live weight (kg)=(umbilical girth [cm]2.13)/302 (for donkeys below 3 years)	0.77
	∗Live weight (kg) =(heart girth [cm]2.12) × (body length [cm]0.688)/3801 (for donkeys above 3 years)	0.84
	∗Live weight (kg) =(heart girth [cm]1.40) × (body length [cm]1.09)/1000 (for donkeys below 3 years)	0.87

∗Formula used to estimate the body weight for young and adult donkeys.