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

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

  Treatment Treatment P-value
Item CONb ENZc ISSd SEM
Dietary energy valuee, 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
  1. an = 7 pigs per treatment (CON and ENZ) and 6 pigs per treatment (ISS)
  2. bControl treatment (CON) = pigs fed basal diet (0.0% β-mannanase) with saline injection
  3. cEnzyme treatment (ENZ) = pigs fed enzyme diet (0.056% β-mannanase) with saline injection
  4. dImmune system stimulation treatment (ISS) = pigs fed enzyme diet (0.056% β-mannanase) with LPS (Escherichia coli serotype O55:B5) injection
  5. 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