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

Table 5 Growth performance and nitrogen balance in pigs on control, enzyme, or immune system stimulation treatment^c

Item	CON^d	ENZ^e	ISS^f	SEM	Treatment P-value
Body Weight, kg
d 0	10.23	10.21	10.38	0.15	0.651
d 16	15.25	15.26	14.86	0.27	0.471
ADG d 1–16, g/d	313.9	316.0	279.7	13.6	0.128
Nitrogen (N) balance, g/d
Intake	21.02^a	20.93^a	17.38^b	0.95	0.021
Excreted	6.21	7.08	6.24	0.45	0.318
In feces	2.62^a	2.83^a	2.27^b	0.11	0.007
In urine	3.59	4.25	3.97	0.47	0.624
Retained	14.81^a	13.85^ab	11.14^b	0.99	0.045
% of excreted N in feces	41.31	41.21	38.42	3.29	0.778
% of excreted N in urine	58.69	58.79	61.58	3.29	0.778
Nitrogen balance, % of intake
Excreted in feces	12.41	13.54	13.23	0.44	0.212
Excreted in urine	17.38	21.40	24.56	4.14	0.495

^a,bWithin a row, treatment means without a common superscript differ, P < 0.05
^cn = 10 pigs per treatment
^dControl treatment (CON) = pigs fed basal diet (0.0% β-mannanase) with saline injection
^eEnzyme treatment (ENZ) = pigs fed enzyme diet (0.056% β-mannanase) with saline injection
^fImmune system stimulation treatment (ISS) = pigs fed enzyme diet (0.056% β-mannanase) with LPS (Escherichia coli serotype O55:B5) injection

ISSN: 2049-1891