Table 9.

Effects of soybean hulls and NE formulation on nursery pig performance, experiment 2¹

Soybean hulls, %	0	10	20	10	20	SEM	Probability, P <
							Soybean hulls, unbalanced NE2		Soybean hulls, balanced NE3		NE formulation
Diet NE, Mcal/kg	2.37	2.21	2.05	2.37	2.37		Linear	Quadratic	Linear	Quadratic
d 0 to 20
ADG, g	680	663	625	671	636	10.0	0.01	0.39	0.01	0.28	0.32
ADFI, g	1,070	1,109	1,094	1,046	1,006	17.0	0.33	0.21	0.02	0.68	0.01
G:F	0.637	0.597	0.571	0.641	0.631	0.008	0.01	0.61	0.62	0.49	0.01
Caloric efficiency4,5	3.72	3.69	3.59	3.69	3.74	0.04	0.05	0.48	0.70	0.43	0.11
BW, kg
d 0	13.6	13.6	13.6	13.6	13.5	0.26	0.99	0.96	0.93	0.96	0.93
d 20	27.2	26.9	26.0	27.0	26.3	0.31	0.02	0.56	0.04	0.47	0.58

¹A total of 210 nursery pigs (PIC 337 × 1050, initially 13.6 ± 0.10 kg) were used in a 20-d study with seven pigs per pen and six replications per treatment.

²Contrasts among diets with 0%, 10%, and 20% soybean hulls without equal NE formulation.

³Contrasts among diets with 0%, 10%, and 20% soybean hulls with equal NE formulation.

⁴Caloric efficiencies, Mcal/kg gain = (total feed intake, kg × dietary NE, Mcal/kg) ÷ total weight gain, kg.

⁵Soybean hulls × NE interaction, P = 0.09.