Table 4.

Mean (± SE) temperatures of neonatal piglets, according to the time postpartum and their IUGR score

	Rectal temperature	Ear base temperature	Ear tip temperature	Minimum back temperature	Maximum back temperature	Average back temperature
Effect of time
Birth (6 min pp.a)	37.4 ± 0.35A	36.1 ± 0.33A	29.3 ± 0.35AC	29.2 ± 0.47A	35.0 ± 0.32A	33.2 ± 0.36A
15 min postpartum	36.2 ± 0.34B	35.3 ± 0.30B	27.8 ± 0.35B	28.2 ± 0.45B	35.3 ± 0.32A	33.4 ± 0.37A
30 min postpartum	36.1 ± 0.35B	35.6 ± 0.31ABa	28.7 ± 0.38A	28.8 ± 0.45	35.8 ± 0.31B	34.0 ± 0.36B
60 min postpartum	37.0 ± 0.37A	36.3 ± 0.37Ab	29.8 ± 0.39C	29.4 ± 0.47A	36.6 ± 0.30C	34.8 ± 0.37C
P-value	P < 0.001	P < 0.001	P < 0.001	P < 0.001	<0.001	<0.001
Effect of IUGR score
IUGR 0	37.2 ± 0.42a	36.3 ± 0.36a	29.0 ± 0.40	28.8 ± 0.46	35.7 ± 0.34	33.9 ± 0.39
IUGR 1	37.1 ± 0.40a	36.1 ± 0.34	29.0 ± 0.38	29.1 ± 0.45	35.7 ± 0.33	33.9 ± 0.38
IUGR 2	36.6 ± 0.38	35.9 ± 0.34	28.8 ± 0.38	28.9 ± 0.45	35.9 ± 0.33	34.1 ± 0.38
IUGR 3	35.8 ± 0.46b	35.1 ± 0.42b	28.8 ± 0.49	28.9 ± 0.50	35.3 ± 0.39	33.5 ± 0.44
P-value	P < 0.05	P < 0.05	P = 0.89	P = 0.76	P = 0.29	P = 0.25

Superscript letters indicate significant differences within each variable (^a,b = P < 0.05, ^A,B = P < 0.005).

^app. = postpartum.