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Table 1 Gas exchange parameters of sows receiving either a single (F1) or hourly (F8) meals1

From: Pattern of carbon dioxide production and retention is similar in adult pigs when fed hourly, but not when fed a single meal

  

Fasting

Peak

Postprandial

CO2 (L/min):

F1

0.773a ± 0.052

1.470b ± 0.053

0.990c ± 0.074

 

F8

n.d.2

1.489a ± 0.110

1.039b ± 0.053

 

P value, F1 vs F83

 

0.29

0.001

O2 (L/min):

F1

0.871a ± 0.060

1.632b ± 0.056

1.084c ± 0.110

 

F8

n.d.

1.614a ± 0.131

1.139b ± 0.062

 

P value, F1 vs F83

 

0.39

0.001

Respiratory quotient (ratio):

F1

0.888a ± 0.029

0.901ab ± 0.027

0.916b ± 0.048

 

F8

n.d.

0.924a ± 0.039

0.912b ± 0.019

 

P value, F1 vs F83

 

0.003

0.26

Energy expenditure (kJ/min):

F1

17.97a ± 1.21

33.78b ± 1.10

22.51c ± 2.12

 

F8

n.d.

33.58a ± 2.60

23.63b ± 1.25

 

P value, F1 vs F83

 

0.64

0.001

  1. 1 Data are means ± SD for n = 5 sows. F1 data are from 8 h infusions including a 2 h fasting phase and a single bolus feeding; F8 data are from 4 h infusions with 8 hourly feeds beginning 2 h prior to infusion. For data with letter superscripts within a row, those not sharing a letter are different (P < 0.05) across phases and within feeding mode. 2 Not determined 3 Differences between feeding modes and within a phase (P < 0.05)