Lipopolysaccharide immune stimulation but not β-mannanase supplementation affects maintenance energy requirements in young weaned pigs

Table 8 Dietary energy values and efficiency in pigs on control, enzyme, or immune system stimulation treatment^a

	Treatment				Treatment P-value
Item	CON^b	ENZ^c	ISS^d	SEM	Treatment P-value
Dietary energy value^e, Mcal/kg DM
GE	4.65	4.59	4.59
DE	4.07	3.99	4.00	0.02	0.051
ME	3.96	3.86	3.89	0.03	0.052
NE	3.29	3.30	3.11	0.19	0.748
ME/DE efficiency, %	97.31	96.92	97.35	0.37	0.457
NE/ME efficiency, %	83.09	85.31	80.03	4.42	0.701

^an = 7 pigs per treatment (CON and ENZ) and 6 pigs per treatment (ISS)
^bControl treatment (CON) = pigs fed basal diet (0.0% β-mannanase) with saline injection
^cEnzyme treatment (ENZ) = pigs fed enzyme diet (0.056% β-mannanase) with saline injection
^dImmune system stimulation treatment (ISS) = pigs fed enzyme diet (0.056% β-mannanase) with LPS (Escherichia coli serotype O55:B5) injection
^eGross energy (GE) analyzed via bomb calorimetry; digestible energy (DE) = GE apparent total tract digestibility coefficient × diet GE; metabolizable energy (ME) = DE – (urinary energy + 0.4% of DE intake); net energy (NE) = (retained energy + fasting heat production)/DMI

ISSN: 2049-1891