Table 1.

Nutrient levels of diets

Weight phase	Nutrient	HCP3	MCP4 (− 2%)	LCP5 (− 4%)
25–50, kg	CP1, %	17.42	15.76	13.54
	NE2, MJ/kg	10.36	10.36	10.06
50–75, kg	CP, %	16.01	13.70	12.24
	NE, MJ/kg	10.36	10.36	10.06
75–100, kg	CP, %	14.63	12.40	10.70
	NE, MJ/kg	10.36	10.36	10.06
100–125, kg	CP, %	13.11	10.67	9.33
	NE, MJ/kg	10.36	10.36	10.06

CP¹: Analytical value

NE²: According to the prediction equation of Noblet et al. [20] NE/(kcal/kg DM) = (0.700 × DE) + (1.61 × EE) + (0.48 × Starch)-(0.91 × CP)-(0.87 × ADF)

HCP³: High crude protein

MCP⁴: Medium crude protein

LCP⁵: Low crude protein