Table 3.

The main effect of sow breed on temperature measurements (°C) of the body surface of sows

Items	Breed Observations	Landrace (n = 50)1)	Large White (n = 32)2)	Duroc (n = 50)3)	SEM	p-value
Body surface
Vulva		34.61±0.041W	34.64±0.057W	34.60±0.043W	0.030	0.910
Udder		34.56±0.042W,a	34.47±0.058W,a	34.30±0.044X,b	0.032	<0.001
Ear		34.27±0.051X,a	34.17±0.070X,a	33.91±0.053Z,b	0.037	<0.001
Back		34.08±0.040Y	34.07±0.055X	34.07±0.042Y	0.030	0.971
SEM		0.021	0.029	0.022	-	-
p-value		<0.001	<0.001	<0.001	-	-
Temperature difference between target sites
VU		0.05±0.041b	0.17±0.056ab	0.30±0.043a	0.030	<0.001
VE		0.34±0.042b	0.46±0.058b	0.70±0.044a	0.029	<0.001
VB		0.47±0.055	0.51±0.076	0.48±0.057	0.042	0.922

Value shown is the mean±standard deviation from day 1 to day 8 post-weaning.

SEM, standard error of the mean; VU, vulva - udder; VE, vulva - ear base; VB, vulva - central back.

¹⁾Sample size = 50 Landrace sows×4 measurements per day×8 days.

²⁾Sample size = 32 Large White sows×4 measurements per day×8 days.

³⁾Sample size = 50 Duroc sows×4 measurements per day×8 days.

^a,bMeans within a row without a common superscript letter differ (p<0.05).

^W–ZMeans within a column without a common superscript letter differ (p<0.05).