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Table 1 Growth performance of non-infected pigs (NC), Lawsonia intracellularis inoculated pigs (PC), and vaccinated Lawsonia intracellularis inoculated pigs (VAC)

From: Lawsonia intracellularis infected enterocytes lack sucrase-isomaltase which contributes to reduced pig digestive capacity

Treatment

 

NC

PC

VAC

SEM

P value

Pre-challenge, dpi-7–0

 ADG, kg/d

0.70

0.76

0.81

0.064

0.245

 ADFI, kg/d

1.22

1.27

1.36

0.072

0.420

 Gain:Feed

0.47

0.63

0.59

0.059

0.131

dpi 0–7

 ADG, kg/d

1.30a

0.87b

0.93b

0.049

< 0.001

 ADFI, kg/d

2.41a

1.75b

1.99b

0.083

< 0.001

 Gain:Feed

0.54

0.52

0.47

0.027

0.155

dpi 8–14

 ADG, kg/d

1.22a

0.83b

1.10a

0.070

0.001

 ADFI, kg/d

2.72a

2.31b

2.40b

0.095

0.011

 Gain:Feed

0.45a

0.35b

0.46a

0.025

0.005

dpi 15–19

 ADG, kg/d

1.31a

0.45b

1.03a

0.115

< 0.001

 ADFI, kg/d

3.01a

2.03b

2.81b

0.169

0.001

 Gain:Feed

0.46a

0.10b

0.38a

0.084

0.013

dpi 0–19

 ADG, kg/d

1.27a

0.75c

1.02b

0.044

< 0.001

 ADFI, kg/d

2.68a

2.03c

2.35b

0.086

< 0.001

 Gain:Feed

0.48a

0.36b

0.44a

0.017

< 0.001

  1. Data represents 12 pigs/treatment.
  2. dpi: days post-inoculation.
  3. a,b,cMeans with differing superscripts differ significantly at P  <  0.05.