Table 4. Seasonal changes of vitamin E and A concentrations on piglets serum
Piglet serum
Winter
SEM
Summer
SEM
p
-value
Vitamin A (µg/mL)
Day 0
1)
0.08
0.001
0.10
0.001
0.01
Day 21
0.20
0.001
0.19
0.001
0.75
Vitamin E (µg/mL)
Day 0
1)
0.69
0.11
1.12
0.12
0.01
Day 21
2.61
0.30
3.25
0.32
0.17
Piglets serum was collected 12h after the collection of colostrum samples.
SEM, standard error of the mean.