Table 1. Effects of dietary low crude protein on growth performance in weaning to finishing pigs

Phase	Body weight (kg)	Low CP (%)	High CP (%)	Performance	Reference
Weaning	7–11	18.9	23.1	ADG increased	[16]
		17.2		ADG and G:F ratio increased
	6–13	17.4	22.8	ADG, ADFI and G:F ratio increased	[17]
	10–20	12.7	19.4	ADG and G:F ratio increased	[18]
	8–20	15.0	20.0	ADG and ADFI increased	[19]
Growing	20–50	13.3	18.2	ADG increased	[20]
		13.4		No significant difference
	20–45	13.3	18.2	ADG and G:F ratio increased	[21]
		13.4		ADFI decreased
	24–40	19.3	24.1	No significant difference	[22]
		18.1		No significant difference
		17.3		No significant difference
	37–61	10.1	16.1	ADG and G:F ratio increased	[23]
		7.8		ADG and G:F ratio increased
Finishing	75–95	10.1	14.7	No significant difference	[24]
		10.2		No significant difference
	50–80	12.0	19.5	G:F ratio decreased	[25]