Table 1. Phase-feeding program and nutritional specification of the diets for the experimental animals

Item	Diet
	Phase I1)	Phase II2)	Phase III3)
Interval of BW (kg)	20-43	43–72	> 72 kg
Nutritional specification
ME (Mcal/kg)	3.35	3.35	3.25
Total lysine (%)	1.20	1.02	0.80

Each was a commercial diet, with its composition of ingredients unavailable. The pigs used for the present experiment were fed the phase I, -II, and -II diets during the indicated intervals of body weights, respectively.
BW, body weight; ME, metabolizable energy.